10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form 10-Q

(Mark One)

x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the quarterly period ended June 30, 2018

or

¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

Commission File Number: 001-16391

Axon Enterprise, Inc.

(Exact name of registrant as specified in its charter)

Delaware	86-0741227
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)
17800 North 85th Street Scottsdale, Arizona	85255
(Address of principal executive offices)	(Zip Code)

(480) 991-0797

(Registrant’s telephone number, including area code)

Not Applicable

(Former name, former address and former fiscal year, if changed since last report)

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  ý    No  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Website, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  ý    No  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company” and “emerging growth company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer	ý	Accelerated filer	¨
Non-accelerated filer	¨ (Do not check if a smaller reporting company)	Smaller reporting company	¨
		Emerging growth company	¨

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨    No  ý

The number of shares of the registrant’s common stock outstanding as of July 31, 2018 was 58,319,695.

AXON ENTERPRISE, INC.

INDEX TO QUARTERLY REPORT ON FORM 10-Q

FOR THE QUARTERLY PERIOD ENDED JUNE 30, 2018

			Page
PART I - FINANCIAL INFORMATION
	Item 1. Financial Statements		3
		Condensed Consolidated Balance Sheets as of June 30, 2018 (Unaudited) and December 31, 2017	3
		Unaudited Condensed Consolidated Statements of Operations and Comprehensive Income for the Three and Six Months Ended June 30, 2018 and 2017	4
		Unaudited Condensed Consolidated Statements of Cash Flows for the Six Months Ended June 30, 2018 and 2017	5
		Notes to Unaudited Condensed Consolidated Financial Statements	6
	Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations		29
	Item 3. Quantitative and Qualitative Disclosures About Market Risk		46
	Item 4. Controls and Procedures		47
PART II - OTHER INFORMATION
	Item 1. Legal Proceedings		49
	Item 1A. Risk Factors		49
	Item 2. Unregistered Sales of Equity Securities and Use of Proceeds		49
	Item 3. Defaults Upon Senior Securities		49
	Item 4. Mine Safety Disclosures		49
	Item 5. Other Information		49
	Item 6. Exhibits		50
	SIGNATURES		51

2

PART I - FINANCIAL INFORMATION

Item 1. Financial Statements

AXON ENTERPRISE, INC.

CONDENSED CONSOLIDATED BALANCE SHEETS

(in thousands, except share data)

	June 30, 2018			December 31, 2017
	(Unaudited)
ASSETS
Current assets:
Cash and cash equivalents	$	307,507		$	75,105
Short-term investments	4,124			6,862
Accounts and notes receivable, net of allowance of $1,327 and $754 as of June 30, 2018 and December 31, 2017, respectively	94,296			56,064
Contract assets, net	10,468			—
Inventory	43,967			45,465
Prepaid expenses and other current assets	26,604			21,696
Total current assets	486,966			205,192
Property and equipment, net of accumulated depreciation of $37,142 and $36,477 as of June 30, 2018 and December 31, 2017, respectively	34,503			31,172
Deferred income tax assets, net	15,813			15,755
Intangible assets, net	20,442			18,823
Goodwill	24,684			14,927
Long-term notes receivable, net of current portion	37,158			36,877
Other assets	22,831			15,366
Total assets	$	642,397		$	338,112
LIABILITIES AND STOCKHOLDERS’ EQUITY
Current liabilities:
Accounts payable	$	9,213		$	8,592
Accrued liabilities	29,995			23,502
Current portion of deferred revenue	76,583			70,401
Customer deposits	2,970			3,673
Current portion of business acquisition contingent consideration	1,946			1,693
Other current liabilities	191			89
Total current liabilities	120,898			107,950
Deferred revenue, net of current portion	61,456			54,881
Liability for unrecognized tax benefits	1,918			1,706
Long-term deferred compensation	3,560			3,859
Business acquisition contingent consideration, net of current portion	203			1,048
Other long-term liabilities	5,520			1,224
Total liabilities	193,555			170,668
Commitments and contingencies (Note 11)
Stockholders’ equity:
Preferred stock, $0.00001 par value; 25,000,000 shares authorized; no shares issued and outstanding as of June 30, 2018 and December 31, 2017	—			—
Common stock, $0.00001 par value; 200,000,000 shares authorized; 58,289,613 and 52,969,869 shares issued and outstanding as of June 30, 2018 and December 31, 2017, respectively	1			1
Additional paid-in capital	442,717			201,672
Treasury stock at cost, 20,220,227 shares as of June 30, 2018 and December 31, 2017	(155,947		)	(155,947		)
Retained earnings	163,590			123,185
Accumulated other comprehensive loss	(1,519		)	(1,467		)
Total stockholders’ equity	448,842			167,444
Total liabilities and stockholders’ equity	$	642,397		$	338,112

The accompanying notes are an integral part of these condensed consolidated financial statements.

3

AXON ENTERPRISE, INC.

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

AND COMPREHENSIVE INCOME

(in thousands, except per share data)

	Three Months Ended June 30,						Six Months Ended June 30,
	2018			2017			2018			2017
Net sales from products	$	76,721		$	66,875		$	157,695		$	134,366
Net sales from services	22,505			12,768			42,746			24,519
Net sales	99,226			79,643			200,441			158,885
Cost of product sales	31,087			30,172			63,521			57,244
Cost of service sales	4,996			3,834			9,316			7,334
Cost of sales	36,083			34,006			72,837			64,578
Gross margin	63,143			45,637			127,604			94,307
Operating expenses:
Sales, general and administrative	39,343			31,824			75,102			62,681
Research and development	18,501			12,989			33,620			25,452
Total operating expenses	57,844			44,813			108,722			88,133
Income from operations	5,299			824			18,882			6,174
Interest and other income (expense), net	(295		)	1,684			968			1,890
Income before provision for income taxes	5,004			2,508			19,850			8,064
Provision for (benefit from) income taxes	(3,481		)	232			(1,561		)	1,208
Net income	$	8,485		$	2,276		$	21,411		$	6,856
Net income per common and common equivalent shares:
Basic	$	0.15		$	0.04		$	0.39		$	0.13
Diluted	$	0.15		$	0.04		$	0.38		$	0.13
Weighted average number of common and common equivalent shares outstanding:
Basic	55,527			52,736			54,330			52,578
Diluted	57,054			53,770			55,892			53,723
UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income	$	8,485		$	2,276		$	21,411		$	6,856
Foreign currency translation adjustments	655			(716		)	(52		)	(551		)
Comprehensive income	$	9,140		$	1,560		$	21,359		$	6,305

The accompanying notes are an integral part of these condensed consolidated financial statements.

4

AXON ENTERPRISE, INC.

UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(in thousands)

	Six Months Ended June 30,
	2018			2017
Cash flows from operating activities:
Net income	$	21,411		$	6,856
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	5,161			3,400
Loss on disposal and impairment of property and equipment, net	153			—
Loss on disposal and abandonment of intangible assets	54			—
Bond premium amortization	30			427
Stock-based compensation	9,047			7,423
Deferred income taxes	(58		)	(1,458		)
Unrecognized tax benefits	212			282
Change in assets and liabilities:
Accounts and notes receivable and contract assets	(24,791		)	(15,925		)
Inventory	4,508			(25,768		)
Prepaid expenses and other assets	(7,429		)	(10,055		)
Accounts payable, accrued and other liabilities	(2,688		)	7,531
Deferred revenue	10,496			14,829
Net cash provided by (used in) operating activities	16,106			(12,458		)
Cash flows from investing activities:
Purchases of investments	(4,331		)	(19,950		)
Proceeds from maturity of investments	7,038			34,377
Purchases of property and equipment	(4,665		)	(5,741		)
Purchases of intangible assets	(254		)	(170		)
Business acquisitions	(5,014		)	(6,479		)
Net cash provided (used in) by investing activities	(7,226		)	2,037
Cash flows from financing activities:
Net proceeds from equity offering	233,993			—
Proceeds from options exercised	586			1,241
Payroll tax payments for net-settled stock awards	(10,807		)	(2,572		)
Payment of contingent consideration for a business acquisition	(575		)	—
Net cash provided by (used in) financing activities	223,197			(1,331		)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(538		)	(857		)
Net increase (decrease) in cash, cash equivalents and restricted cash	231,539			(12,609		)
Cash, cash equivalents and restricted cash, beginning of period	78,438			43,969
Cash, cash equivalents and restricted cash, end of period	$	309,977		$	31,360
Supplemental disclosures:
Cash and cash equivalents	$	307,507		$	28,038
Restricted cash (Note 6)	2,470			3,322
Total cash, cash equivalents and restricted cash shown in the statements of cash flows	$	309,977		$	31,360
Cash paid for income taxes, net of refunds	$	7,758		$	9,934
Non-cash transactions
Property and equipment purchases in accounts payable and accrued liabilities	$	665		$	1,351
Non-cash purchase consideration related to business combinations	$	12,288		$	1,026

The accompanying notes are an integral part of these condensed consolidated financial statements.

5

AXON ENTERPRISE, INC.

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

1. Organization and Summary of Significant Accounting Policies

Axon Enterprise, Inc. (“Axon” or the “Company”) is a developer and manufacturer of advanced conducted electrical weapons (“CEWs”) designed for use by law enforcement, military, corrections, private security personnel, and by private individuals for personal defense. In addition, the Company has developed full technology solutions for the capture, secure storage and management of video/audio evidence as well as other tactical capabilities for use in law enforcement. The Company sells its products worldwide through its direct sales force, distribution partners, online store and third-party resellers. The Company was incorporated in Arizona in September 1993, and reincorporated in Delaware in January 2001. The Company’s corporate headquarters and manufacturing facilities are located in Scottsdale, Arizona. The Company’s main software development division is located in Seattle, Washington, and it develops artificial intelligence technologies through its wholly-owned subsidiary in Vietnam, Axon Public Safety Southeast Asia LLC. During 2018, the Company established Axon Public Safety Finland OY in Tampere, Finland that operates a connected hardware team focused on the development of the Company's hardware products. Axon Public Safety BV, a wholly owned subsidiary of the Company, supports the Company's international sales and marketing efforts, and is located in Amsterdam, Netherlands. Axon Public Safety BV wholly owns two subsidiaries, Axon Public Safety U.K. LTD and Axon Public Safety AU, that serve as direct sales operations in the United Kingdom ("U.K.") and Australia, respectively. The Company also sells to certain international markets through a wholly-owned subsidiary, Axon Public Safety Germany SE, and sells into the Canadian market through its wholly-owned subsidiary, Axon Public Safety Canada, Inc.

The accompanying unaudited condensed consolidated financial statements include the accounts of the Company and its subsidiaries. All material intercompany accounts, transactions, and profits have been eliminated.

Basis of Presentation and Use of Estimates

These unaudited condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission. Certain information related to the Company’s organization, significant accounting policies and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) has been condensed or omitted. The accounting policies followed in the preparation of these unaudited condensed consolidated financial statements are consistent with those followed in the Company’s annual consolidated financial statements for the year ended December 31, 2017, as filed on Form 10-K, with the exception of the Company's adoption of Topic 606. In the opinion of management, these unaudited condensed consolidated financial statements contain all material adjustments, consisting only of normal recurring adjustments, necessary to fairly state the Company’s financial position, results of operations and cash flows for the periods presented and the presentations and disclosures herein are adequate when read in conjunction with the Company’s Form 10-K for the year ended December 31, 2017. The results of operations for the six months ended June 30, 2018 and 2017 are not necessarily indicative of the results to be expected for the full year (or any other period). Significant estimates and assumptions in these unaudited condensed consolidated financial statements include:

• product warranty reserves,

• inventory valuation,

• revenue recognition,

• valuation of goodwill, intangible and long-lived assets,

• recognition, measurement and valuation of current and deferred income taxes,

• fair value of stock awards issued and the estimated vesting periods for performance-based stock awards,

• recognition and measurement of contingencies and accrued litigation expense, and

• fair values of identified tangible and intangible assets acquired and liabilities assumed in business combinations.

Actual results could differ materially from those estimates.

Segment Information

The Company is comprised of two reportable segments: the manufacture and sale of CEWs, batteries, accessories, extended warranties and other products and services (the “TASER Weapons” segment); and the software and sensors business, which includes the sale of devices, wearables, applications, cloud and mobile products (collectively, the “Software and Sensors” segment). Within the Software and Sensors segment, the Company specifies sales of products and services. Revenue from the Company's “products” in the Software and Sensors segment are generally sales of sensors, including on-officer body cameras, Axon Fleet cameras, other hardware sensors, warranties on sensors, and other products, and is sometimes referred to as Sensors and Other revenue. Revenue from the Company's “services” in the Software and Sensors segment comprise sales related to the Axon Cloud, which includes Evidence.com, cloud-based evidence management software revenue, other recurring cloud-hosted software revenue and related

6

AXON ENTERPRISE, INC.

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

professional services, and is sometimes referred to as Axon Cloud revenue. Within the Software and Sensors segment, the Company includes only revenues and costs attributable to that segment which include: costs of sales for both products and services, direct labor, selling expenses for the sales team, product management and research and development ("R&D") for products included, or to be included, within the Software and Sensors segment. All other costs are included in the TASER Weapons segment.

The Company’s Chief Executive Officer, who is the Chief Operating Decision Maker (the “CODM”), is not provided asset information by segment. Reportable segments are determined based on discrete financial information reviewed by the CODM for the Company. The Company organizes and reviews operations based on products and services. The Company performs an annual analysis of its reportable segments. Additional information related to the Company’s business segments is summarized in Note 14.

Geographic Information and Major Customers

For the three and six months ended June 30, 2018 and 2017, no individual country outside the U.S. represented more than 10% of total net sales. Individual sales transactions in the international market are generally larger and occur more intermittently than in the domestic market due to the profile of the Company's customers.

For the three and six months ended June 30, 2018 and 2017, no customer represented more than 10% of total net sales. At June 30, 2018 and December 31, 2017, no customer represented more than 10% of the aggregate accounts and notes receivable balance and contract assets.

Income per Common Share

Basic income per common share is computed by dividing net income by the weighted average number of common shares outstanding during the periods presented. Potentially dilutive securities include outstanding stock options and unvested restricted stock units ("RSUs"). The dilutive effect of potentially dilutive securities is reflected in diluted earnings per share by application of the treasury stock method. Under the treasury stock method, an increase in the fair market value of the Company’s common stock can result in a greater dilutive effect from potentially dilutive securities.

The calculation of the weighted average number of shares outstanding and earnings per share are as follows (in thousands except per share data):

	Three Months Ended June 30,				Six Months Ended June 30,
	2018		2017		2018		2017
Numerator for basic and diluted earnings per share:
Net income	$	8,485	$	2,276	$	21,411	$	6,856
Denominator:
Weighted average shares outstanding	55,527		52,736		54,330		52,578
Dilutive effect of stock-based awards	1,527		1,034		1,562		1,145
Diluted weighted average shares outstanding	57,054		53,770		55,892		53,723
Anti-dilutive stock-based awards excluded	3,023		544		1,533		690
Net income per common share:
Basic	$	0.15	$	0.04	$	0.39	$	0.13
Diluted	$	0.15	$	0.04	$	0.38	$	0.13

7

AXON ENTERPRISE, INC.

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

Standard Warranties

The Company warranties its CEWs, Axon cameras and certain related accessories from manufacturing defects on a limited basis for a period of one year after purchase and, thereafter, will replace any defective unit for a fee. Estimated costs for the standard warranty are charged to cost of products sold when revenue is recorded for the related product. Future warranty costs are estimated based on historical data related to warranty claims on a quarterly basis and this rate is applied to current product sales. Historically, reserve amounts have been increased if management becomes aware of a component failure or other issue that could result in larger than anticipated warranty claims from customers. The warranty reserve is reviewed quarterly to verify that it sufficiently reflects the remaining warranty obligations based on the anticipated expenditures over the balance of the warranty obligation period, and adjustments are made when actual warranty claim experience differs from estimates. The warranty reserve is included in accrued liabilities on the accompanying consolidated balance sheets. 

Changes in the Company’s estimated product warranty liabilities were as follows (in thousands):

	Six Months Ended June 30,
	2018			2017
Balance, beginning of period	$	644		$	780
Utilization of accrual	(149		)	(120		)
Warranty expense (recovery)	10			(96		)
Balance, end of period	$	505		$	564

Fair Value Measurements and Financial Instruments

The Company uses the fair value framework that prioritizes the inputs to valuation techniques for measuring financial assets and liabilities measured on a recurring basis and for non-financial assets and liabilities when these items are re-measured. Fair value is considered to be the exchange price in an orderly transaction between market participants to sell an asset or transfer a liability at the measurement date. The hierarchy below lists three levels of fair value based on the extent to which inputs used in measuring fair value are observable in the market. The Company categorizes each of its fair value measurements in one of these three levels based on the lowest level input that is significant to the fair value measurement in its entirety. These levels are:

• Level 1 – Valuation techniques in which all significant inputs are unadjusted quoted prices from active markets for assets or liabilities that are identical to the assets or liabilities being measured.

• Level 2 – Valuation techniques in which significant inputs include quoted prices from active markets for assets or liabilities that are similar to the assets or liabilities being measured and/or quoted prices for assets or liabilities that are identical or similar to the assets or liabilities being measured from markets that are not active. Also, model-derived valuations in which all significant inputs and significant value drivers are observable in active markets are Level 2 valuation techniques.

• Level 3 – Valuation techniques in which one or more significant inputs or significant value drivers are unobservable. Unobservable inputs are valuation technique inputs that reflect the Company's own assumptions about inputs that market participants would use in pricing an asset or liability.

The Company has cash equivalents and investments, which at June 30, 2018 and December 31, 2017 were comprised of money market funds, state and municipal obligations, corporate bonds, and certificates of deposits. See additional disclosure regarding the fair value of the Company’s cash equivalents and investments in Note 3. Included in the balance of Other assets as of June 30, 2018 and December 31, 2017 was $3.8 million related to corporate-owned life insurance policies which are used to fund the Company’s deferred compensation plan. The Company determines the fair value of its insurance contracts by obtaining the cash surrender value of the contracts from the issuer, a Level 2 valuation technique.

The Company’s financial instruments also include accounts and notes receivable, accounts payable, notes payable and accrued liabilities. Due to the short-term nature of these instruments, their fair values approximate their carrying values on the accompanying condensed consolidated balance sheets.

Valuation of Goodwill, Intangibles and Long-lived Assets

Management evaluates whether events and circumstances have occurred that indicate the remaining estimated useful life of long-lived assets and identifiable intangible assets, excluding goodwill and intangible assets with indefinite useful lives, may

8

AXON ENTERPRISE, INC.

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

warrant revision or that the remaining balance of these assets may not be recoverable. Such circumstances could include, but are not limited to, a change in the product mix, a change in the way products are created, produced or delivered, or a significant change in the way products are branded and marketed. In performing the review for recoverability, management estimates the future undiscounted cash flows expected to result from the use of the assets and their eventual disposition. The amount of the impairment loss, if impairment exists, is calculated based on the excess of the carrying amounts of the assets over their estimated fair value computed using discounted cash flows.

The Company does not amortize goodwill and intangible assets with indefinite useful lives; rather such assets are required to be tested for impairment at least annually or sooner whenever events or changes in circumstances indicate that the assets may be impaired. The Company performs its goodwill and intangible asset impairment tests in the fourth quarter of each year.

Recently Issued Accounting Guidance

In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2014-09, Revenue from Contracts with Customers (“ASU 2014-09”) and Accounting Standards Codification ("ASC") Subtopic 340-40, Other Assets and Deferred Costs - Contracts with Customers ("ASC 340-40"), (collectively, “Topic 606”). On January 1, 2018, the Company adopted Topic 606 by applying the modified retrospective method of adoption for all contracts that were not substantially completed as of the adoption date. ASU 2014-09 requires entities to recognize revenue through the application of a five-step model, which includes identification of the contract, identification of the performance obligations, determination of the transaction price, allocation of the transaction price to the performance obligations and recognition of revenue as the entity satisfies the performance obligations. Refer to Note 2 for further discussion.

In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) in order to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet for those leases classified as operating leases under existing GAAP guidance. ASU 2016-02 requires a lessee to recognize a liability to make lease payments (the lease liability) and a right-of-use asset representing its right to use the underlying asset for the lease term on the balance sheet. ASU 2016-02 is effective for the fiscal year beginning after December 15, 2018 (including interim periods within that year) using a modified retrospective approach and early adoption is permitted. The Company is currently in the process of evaluating the impact of adoption of this ASU on its consolidated financial statements, but expects that the adoption of ASU 2016-02 will have a material impact on the Company's consolidated balance sheet.

In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses, which amends ASC 326. The new guidance differs from existing GAAP guidance wherein previous standards generally delayed recognition of credit losses until the loss was probable. ASU 2016-13 eliminates the probable initial recognition threshold and, instead, reflects an entity’s current estimate of all expected credit losses. The use of forecasted information is intended to incorporate more timely information in the estimate of expected credit loss. ASU 2016-13 is effective for the fiscal year beginning after December 15, 2019, and interim periods within that fiscal year, and early adoption is permitted. The Company is currently in the process of evaluating the impact of adoption of ASU 2016-13 on its consolidated financial statements.

In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. ASU 2016-15 eliminates the diversity in practice related to the classification of certain cash receipts and payments. ASU 2016-15 designates the appropriate cash flow classification, including requirements to allocate certain components of these cash receipts and payments among operating, investing and financing activities. The Company adopted ASU 2016-15 effective January 1, 2018, and the adoption of this ASU did not have a material impact on its consolidated financial statements.

In October 2016, the FASB issued ASU 2016-16, Income Taxes (Topic 740) - Intra-Entity Transfers of Assets Other Than Inventory. ASU 2016-16 requires an entity to recognize income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. This removes the exception to postpone recognition until the asset has been sold to an outside party. The Company adopted ASU 2016-16 effective January 1, 2018, and the adoption of this ASU did not have a material impact on its consolidated financial statements.

In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows - Restricted Cash (Topic 230), which amends the existing guidance relating to the treatment of restricted cash and restricted cash equivalents on the statement of cash flows.  The Company adopted ASU 2016-18 effective January 1, 2018, and retrospectively updated the presentation of its unaudited consolidated statements of cash flows to include amounts of restricted cash with cash and cash equivalents when reconciling the beginning-of-period and end-of-period amounts. The adoption of ASU 2016-18 did not have a material impact on the Company's consolidated financial statements.

9

AXON ENTERPRISE, INC.

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805) to provide a more robust framework to use in determining when a set of acquired assets and activities is a business. The amendments in ASU 2017-01 provide a screen to determine when a set of acquired integrated assets and activities is not a business, and if the screen is not met it may result in fewer transactions that qualify as a business combination under ASC Topic 805. The Company adopted ASU 2017-01 January 1, 2018, and the adoption of this ASU did not have a material impact on the Company's consolidated financial statements.

In May 2017, the FASB issued ASU 2017-09, Compensation - Stock Compensation (Topic 718), which provides guidance on determining which changes to the terms and conditions of share-based payment awards require an entity to apply modification accounting under Topic 718. The Company adopted ASU 2017-09 effective January 1, 2018, and the adoption of this ASU did not have a material impact on its consolidated financial statements.

In June 2018, the FASB issued ASU 2018-07, Compensation - Stock Compensation (Topic 718), expanding the scope of Topic 718 to include share-based payment transactions for acquiring goods and services from nonemployees. ASU 2018-07 is effective for the fiscal year beginning after December 15, 2018, and interim periods within that fiscal year, and the adoption of this ASU is not expected to have a material impact on the Company's consolidated financial statements.

Reclassification of Prior Year Presentation

Certain prior year amounts have been reclassified for consistency with the current year presentation. These reclassifications had no effect on the reported results of operations.

10

2. Revenues

Adoption of ASC Topic 606, "Revenue from Contracts with Customers"

On January 1, 2018, the Company adopted Topic 606 using the modified retrospective method applied to those contracts which were not completed as of January 1, 2018. Results for reporting periods beginning after January 1, 2018 are presented under Topic 606, while prior period amounts are not adjusted, and continue to be reported in accordance with our historic accounting under ASC 605. The Company recorded a net increase in stockholders’ equity (retained earnings) of $19.0 million as of January 1, 2018 due to the cumulative impact of adopting Topic 606 on contracts that were not complete as of that date. The areas most significantly impacted were contracts with contingent hardware revenue and the treatment of incremental costs of obtaining contracts with customers. The impacts as a result of applying Topic 606 were a net increase to revenue of $0.6 million and $2.3 million, respectively, for the three and six months ended June 30, 2018, and a net decrease to selling, general and administrative expenses of approximately $0.9 million and $1.6 million, respectively, related to the costs of obtaining contracts for the same periods, as compared to what would have been recognized under ASC 605. The impacts to the December 31, 2017 balance sheet of adopting Topic 606 are presented below (in thousands):

	December 31, 2017 (As reported)		Impact of Adoption of Topic 606 on Opening Balance Sheet			January 1, 2018 (As adjusted)
Accounts and notes receivable, net	$	56,064	$	28,915		$	84,979
Contract assets, net	—		5,512			5,512
Prepaid expense and other current assets	21,696		2,003			23,699
Total impacted current assets	77,760		36,430			114,190
Deferred income tax assets, net	15,755		(5,158		)	10,597
Long-term notes receivable, net of current portion	36,877		(12,977		)	23,900
Other assets	15,366		5,323			20,689
Total impacted assets	145,758		23,618			169,376
Accrued liabilities	23,502		2,512			26,014
Current portion of deferred revenue	70,401		863			71,264
Total impacted current liabilities	93,903		3,375			97,278
Deferred revenue, net of current portion	54,881		1,249			56,130
Total impacted liabilities	148,784		4,624			153,408
Retained earnings	123,185		18,994			142,179
Total impacted stockholders' equity	123,185		18,994			142,179
Total impacted liabilities and stockholders' equity	271,969		23,618			295,587

Revenue Recognition

Revenues are recognized upon transfer of control of promised products or services to customers in an amount that reflects the consideration the Company expects to receive in exchange for those products or services. The Company enters into contracts that can include various combinations of products and services, each of which are generally distinct and accounted for as separate performance obligations. Revenue is recognized net of allowances for returns and any taxes collected from customers, which are subsequently remitted to governmental taxing authorities.

A performance obligation is a promise in a contract to transfer a distinct good or service to the customer, and is the unit of account in Topic 606. For contracts with multiple performance obligations, the Company allocates the contract transaction price to each performance obligation using the Company's estimate of the standalone selling price ("SSP") of each distinct good or service in the contract.

Performance obligations to deliver products, including CEWs, Axon cameras and related accessories such as cartridges, batteries and docks, are generally satisfied at the point in time the Company ships the product, as this is when the customer obtains control of the asset under our standard terms and conditions. In certain contracts with non-standard terms and conditions, these performance obligations may not be satisfied until formal customer acceptance occurs. Performance obligations to fulfill service-type extended warranties and provide our Software-as-a-Service (“SaaS”) offerings, including Evidence.com and other cloud

11

services, are generally satisfied over time as the customer receives and consumes the benefits of these services over the stated service period.

The Company has elected to recognize shipping costs as an expense in Cost of product sales when the control of hardware products or accessories have transferred to the customer.

Nature of Products and Services

The following table presents the Company's revenues by primary product and service offering (in thousands):

	Three Months Ended June 30, 2018						Three Months Ended June 30, 2017 (1)
	TASER Weapons		Software and Sensors		Total		TASER Weapons		Software and Sensors		Total
TASER X26P	$	18,146	$	—	$	18,146	$	16,235	$	—	$	16,235
TASER X2	18,362		—		18,362		16,052		—		16,052
TASER Pulse and Bolt	1,101		—		1,101		801		—		801
Single cartridges	17,243		—		17,243		14,867		—		14,867
Axon Body	—		4,780		4,780		—		3,752		3,752
Axon Flex	—		1,535		1,535		—		3,851		3,851
Axon Dock	—		2,119		2,119		—		2,783		2,783
Axon Fleet	—		2,715		2,715		—		—		—
Evidence.com and cloud services	—		20,357		20,357		—		12,756		12,756
TASER Cam	—		762		762		—		766		766
Extended warranties	3,738		2,870		6,608		2,991		1,619		4,610
Other	2,034		3,464		5,498		2,070		1,100		3,170
Total	$	60,624	$	38,602	$	99,226	$	53,016	$	26,627	$	79,643

	Six Months Ended June 30, 2018						Six Months Ended June 30, 2017 (1)
	TASER Weapons		Software and Sensors		Total		TASER Weapons		Software and Sensors		Total
TASER X26P	$	34,620	$	—	$	34,620	$	31,903	$	—	$	31,903
TASER X2	42,294		—		42,294		35,038		—		35,038
TASER Pulse and Bolt	2,447		—		2,447		1,823		—		1,823
Single cartridges	33,357		—		33,357		31,531		—		31,531
Axon Body	—		10,338		10,338		—		7,198		7,198
Axon Flex	—		3,204		3,204		—		5,326		5,326
Axon Dock	—		5,154		5,154		—		4,770		4,770
Axon Fleet	—		4,831		4,831		—		—		—
Evidence.com and cloud services	—		40,598		40,598		—		24,498		24,498
TASER Cam	—		2,122		2,122		—		1,485		1,485
Extended warranties	7,444		5,360		12,804		5,834		3,037		8,871
Other	3,986		4,686		8,672		4,558		1,884		6,442
Total	$	124,148	$	76,293	$	200,441	$	110,687	$	48,198	$	158,885

⁽¹⁾ Amounts for the three and six months ended June 30, 2017 have not been adjusted under the modified retrospective method of adoption of Topic 606, and are presented consistent with the prior period amounts reported under ASC 605.

The Company derives revenue from two primary sources: (1) the sale of physical products, including CEWs, Axon cameras, Axon Signal enabled devices, corresponding hardware extended warranties, and related accessories such as Axon docks, cartridges and batteries, among others, and (2) subscription to the Company's Evidence.com digital evidence management SaaS (including secure cloud-based storage fees and other ancillary services), which includes varying levels of support. To a lesser extent, the Company also recognizes revenue from training, professional services and revenue related to other software and cloud services.

12

Many of the Company's products and services are sold on a standalone basis. The Company also bundles its hardware products and services together and sells them to its customers in single transactions, where the customer can make payments over a multi-year period. These sales may include payments for upfront hardware and services, as well as payments for hardware and services to be provided by the Company at a future date. Additionally, the Company offers customers the ability to purchase CEW cartridges and certain services on an unlimited basis over the contractual term. Due to the unlimited nature of these arrangements whereby the Company is obligated to deliver unlimited products at the customer’s request, the Company accounts for these arrangements as stand-ready obligations, and recognizes revenue ratably over the contract period. Cost of product sales will be recognized as the products are shipped to the customer.

The following table presents the Company's revenues disaggregated by geography (in thousands):

	Three Months Ended June 30,								Six Months Ended June 30,
	2018				2017 (1)				2018				2017 (1)
United States	$	78,731	79	%	$	66,200	83	%	$	156,681	78	%	$	130,952	82	%
Other countries	20,495		21		13,443		17		43,760		22		27,933		18
Total	$	99,226	100	%	$	79,643	100	%	$	200,441	100	%	$	158,885	100	%

⁽¹⁾ Amounts for the three and six months ended June 30, 2017 have not been adjusted under the modified retrospective method of adoption of Topic 606, and are presented consistent with the prior period amounts reported under ASC 605.

Contract Balances

The timing of revenue recognition may differ from the timing of invoicing to customers. The Company generally has an unconditional right to consideration when it invoices its customers and records a receivable. The Company records a contract asset when revenue is recognized prior to invoicing, or a contract liability (deferred revenue) when revenue will be recognized subsequent to invoicing.

Contract assets generally result from the Company's subscription programs where the Company satisfies a hardware performance obligation upon shipment to the customer and the right to the portion of the transaction price allocated to that hardware performance obligation is conditional on the Company’s future performance of a SaaS service obligation under the contract. The Company recognizes a portion the amount allocated to hardware products shipped to the customer as accounts receivable when invoiced to the customer, and records the remaining allocated value as a contract asset as the Company has generally fulfilled its hardware performance obligation upon shipment.

Contract liabilities generally consist of deferred revenue on the Company’s subscription programs where the Company generally invoices customers at the beginning of each annual period and records a receivable at the time of invoicing when there is an unconditional right to consideration.

Deferred revenue is comprised mainly of unearned revenue related to the Company's Evidence.com SaaS platform, secure cloud-based storage, service-type extended warranties, stand-ready obligations in our cartridge programs, and rights to future CEW, camera and related accessories hardware in our subscription programs. Revenue for Evidence.com and cloud-based storage, our service-type extended warranties and stand-ready cartridge programs is generally recognized on a straight-line basis over the subscription term. Revenue for the rights to future hardware is generally recognized at the point in time the hardware products are shipped to the customer.

Payment terms and conditions vary by contract type and geography, but our standard terms are that payments are due within 30 days from the date of invoice.

The following table presents the Company's contract assets, contract liabilities and certain information related to these balances as of and for the six months ended June 30, 2018 (in thousands):

	June 30, 2018
Contract assets (1)	$	11,021
Contract liabilities (deferred revenue)	138,039
Revenue recognized in the period from:
Amounts included in contract liabilities at the beginning of the period	43,282

⁽¹⁾ Of the $11.0 million balance of contract assets as of June 30, 2018, $0.6 million was classified as long-term and included within "Other assets" on the accompanying condensed consolidated balance sheet.

13

Contract liabilities (deferred revenue) consisted of the following (in thousands):

	June 30, 2018						December 31, 2017 (1)
	Current		Long-Term		Total		Current		Long-Term		Total
Warranty:
TASER Weapons	$	11,593	$	16,508	$	28,101	$	12,501	$	18,619	$	31,120
Software and Sensors	7,001		5,551		12,552		6,293		4,195		10,488
	18,594		22,059		40,653		18,794		22,814		41,608
Hardware:
TASER Weapons	6,264		14,787		21,051		4,164		11,401		15,565
Software and Sensors	15,931		15,379		31,310		16,956		14,781		31,737
	22,195		30,166		52,361		21,120		26,182		47,302
Software and Sensors Services	35,794		9,231		45,025		30,487		5,885		36,372
Total	$	76,583	$	61,456	$	138,039	$	70,401	$	54,881	$	125,282

	June 30, 2018						December 31, 2017 (1)
	Current		Long-Term		Total		Current		Long-Term		Total
TASER Weapons	$	17,857	$	31,295	$	49,152	$	16,665	$	30,020	$	46,685
Software and Sensors	58,726		30,161		88,887		53,736		24,861		78,597
Total	$	76,583	$	61,456	$	138,039	$	70,401	$	54,881	$	125,282

⁽¹⁾ Amounts as of December 31, 2017 have not been adjusted under the modified retrospective method of adoption of Topic 606, and are presented consistent with the prior period amounts reported under ASC 605.

Remaining Performance Obligations

As of June 30, 2018, the Company had approximately $750 million of remaining performance obligations, which included both recognized contract liabilities as well as amounts that will be invoiced and recognized in future periods. The remaining performance obligations are limited only to arrangements that meet the definition of a contract under Topic 606 as of June 30, 2018. The Company expects to recognize between 15% - 20% of this balance over the next twelve months and expects the remainder to be recognized over the following five to seven years, subject to risks related to delayed deployments, budget appropriation or other contract cancellation clauses.

Costs to Obtain a Contract

The Company recognizes an asset for the incremental costs of obtaining a contract with a customer, which consist primarily of sales commissions. These costs are ascribed to or allocated to the underlying performance obligations in the contract and amortized consistent with the recognition timing of the revenue for the underlying performance obligations.

For contract costs related to performance obligations with an amortization period of one year or less, the Company applies the practical expedient to expense these sales commissions when incurred. These costs are recorded as incurred within sales, general and administrative expenses on the accompanying condensed consolidated statement of operations and comprehensive income.

As of June 30, 2018, the Company's assets for costs to obtain contracts were as follows (in thousands):

	June 30, 2018
Current deferred commissions (1)	$	5,941
Deferred commissions, net of current portion (2)	13,766
	$	19,707

⁽¹⁾ Current deferred commissions are included within "Prepaid expenses and other current assets" on the accompanying condensed consolidated balance sheet.

⁽²⁾ Deferred commissions, net of current portion, are included in "Other assets" on the accompanying condensed consolidated balance sheet.

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During the three and six months ended June 30, 2018, the Company recognized $1.2 million and $2.3 million, respectively, of amortization related to deferred commissions. These costs are recorded within sales, general and administrative expenses on the accompanying condensed consolidated statement of operations and comprehensive income.

Significant Judgments

The Company’s contracts with certain municipal government customers may be subject to budget appropriation, other contract cancellation clauses or future periods which are optional. In contracts where the customer’s performance is subject to budget appropriation clauses, we generally consider the likelihood of non-appropriation to be remote when determining the contract term and transaction price. Contracts with other cancellation provisions or optional periods may require judgment in determining the contract term, including the existence of material rights, transaction price and identifying the performance obligations.

At times, customers may request changes that either amend, replace or cancel existing contracts. Judgment is required to determine whether the specific facts and circumstances within the contracts require the changes to be accounted for as a separate contract or as a modification. Generally, contract modifications containing additional goods and services that are determined to be distinct and sold at their SSP are accounted for as a separate contract. For contract modifications where both criteria are not met, the original contract is updated and the required adjustments to revenue will be made accordingly.

The Company's contracts with customers often include promises to transfer multiple products and services to a customer. Determining whether products and services are considered distinct performance obligations that should be accounted for separately rather than together may require significant judgment. The Company considers CEW devices and related accessories as well as cameras and related accessories to be separately identifiable from each other as well as from extended warranties on these products and the SaaS subscriptions to Evidence.com and other cloud services.

In contracts where there are timing differences between when the Company transfers a promised good or service to the customer and when the customer pays for that good or service, the Company has determined that, with the exception of its TASER 60 installment purchase arrangements, its contracts generally do not include a significant financing component. For the three and six months ended June 30, 2018, the Company recorded revenue of $10.2 million and $24.2 million, respectively, including $0.3 million and $0.6 million, respectively, of interest income, under the Company’s TASER 60 plan. For the three and six months ended June 30, 2017, the Company recorded revenue of $5.3 million and $13.3 million, respectively, including $0.2 million and $0.3 million, respectively, of interest income, under the Company’s TASER 60 plan. Amounts for the three and six months ended June 30, 2017 have not been adjusted under the modified retrospective method of adoption of Topic 606.

Judgment is required to determine the SSP for each distinct performance obligation. The Company analyzes separate sales of its products and services as a basis for estimating the SSP of its products and services and then uses that SSP as the basis for allocating the transaction price when its products and services are sold together in a contract with multiple performance obligations. In instances where the SSP is not directly observable, such as when the Company does not sell the product or service separately, it determines the SSP using information that may include market conditions, time value of money and other observable inputs. The Company typically has more than one SSP for individual products and services due to the stratification of those products and services by customers and circumstances. In these instances, the Company may use information such geographic region and distribution channel in determining the SSP.

Sales are typically made on credit and we generally do not require collateral. We perform ongoing credit evaluations of our customers’ financial condition and maintain an allowance for doubtful accounts. Uncollectible accounts are written off when deemed uncollectible, and accounts and notes receivable are presented net of an allowance for doubtful accounts. This allowance represents our best estimate and is based on our judgment after considering a number of factors including third-party credit reports, actual payment history, customer-specific financial information and broader market and economic trends and conditions. In the event that actual uncollectible amounts differ from our estimates, additional expense could be necessary.

15

AXON ENTERPRISE, INC.

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

3. Cash, Cash Equivalents and Investments

The following tables summarize the Company's cash, cash equivalents, and held-to-maturity investments at June 30, 2018 and December 31, 2017 (in thousands):

	As of June 30, 2018
	Amortized Cost		Gross Unrealized Losses			Fair Value		Cash and Cash Equivalents		Short-Term Investments
Cash	$	47,837	$	—		$	47,837	$	47,837	$	—
Level 1:
Money market funds	256,679		—			256,679		256,679		—
Corporate bonds	4,528		(3		)	4,525		1,000		3,528
Subtotal	261,207		(3		)	261,204		257,679		3,528
Level 2:
State and municipal obligations	2,587		—			2,587		1,991		596
Total	$	311,631	$	(3	)	$	311,628	$	307,507	$	4,124

	As of December 31, 2017
	Amortized Cost		Gross Unrealized Losses			Fair Value		Cash and Cash Equivalents		Short-Term Investments
Cash	$	53,459	$	—		$	53,459	$	53,459	$	—
Level 1:
Money market funds	20,884		—			20,884		20,884		—
Corporate bonds	6,632		(6		)	6,626		—		6,632
Subtotal	27,516		(6		)	27,510		20,884		6,632
Level 2:
State and municipal obligations	992		—			992		762		230
Total	$	81,967	$	(6	)	$	81,961	$	75,105	$	6,862

The Company believes the unrealized losses on its investments are due to interest rate fluctuations. As these investments are short-term in nature, are expected to be redeemed at par value, and/or because the Company has the ability and intent to hold these investments to maturity, the Company does not consider these investments to be other than temporarily impaired at June 30, 2018 or as of December 31, 2017.

4. Inventory

Inventories are stated at the lower of cost and net realizable value. Cost is determined using the weighted average cost of raw materials which approximates the first-in, first-out (“FIFO”) method and includes allocations of manufacturing labor and overhead. Included in finished goods at June 30, 2018 and December 31, 2017 was $1.7 million and $1.4 million, respectively, of trial and evaluation hardware units. Provisions are made to reduce excess, obsolete or slow-moving inventories to their net realizable value. Inventory consisted of the following at June 30, 2018 and December 31, 2017 (in thousands):

	2018		2017
Raw materials	$	20,288	$	20,119
Finished goods	23,679		25,346
Total inventory	$	43,967	$	45,465

16

AXON ENTERPRISE, INC.

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

5. Goodwill and Intangible Assets

The changes in the carrying amount of goodwill for the six months ended June 30, 2018 were as follows (in thousands):

	TASER Weapons			Software and Sensors			Total
Balance, beginning of period	$	1,453		$	13,474		$	14,927
Goodwill acquired	—			9,870			9,870
Foreign currency translation adjustment	(56		)	(57		)	(113		)
Balance, end of period	$	1,397		$	23,287		$	24,684

Intangible assets (other than goodwill) consisted of the following (in thousands):

		June 30, 2018							December 31, 2017
	Useful Life	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Amortized:
Domain names	5-10 years	$	3,161	$	(580	)	$	2,581	$	3,161	$	(428	)	$	2,733
Issued patents	4-15 years	2,858		(1,004		)	1,854		2,697		(913		)	1,784
Issued trademarks	3-11 years	1,010		(545		)	465		860		(397		)	463
Customer relationships	4-8 years	3,742		(616		)	3,126		1,377		(451		)	926
Non-compete agreements	3-4 years	548		(398		)	150		556		(346		)	210
Developed technology	3-7 years	15,449		(5,594		)	9,855		13,469		(3,956		)	9,513
Re-acquired distribution rights	2 years	2,023		(1,349		)	674		2,133		(711		)	1,422
Total amortized		28,791		(10,086		)	18,705		24,253		(7,202		)	17,051
Not amortized:
TASER trademark		900					900		900					900
Patents and trademarks pending		837					837		872					872
Total not amortized		1,737					1,737		1,772					1,772
Total intangible assets		$	30,528	$	(10,086	)	$	20,442	$	26,025	$	(7,202	)	$	18,823

Amortization expense of intangible assets for the three and six months ended June 30, 2018 was $1.7 million and $3.0 million, respectively. Amortization expense of intangible assets for the three and six months ended June 30, 2017 was $1.0 million and $1.9 million, respectively. Estimated amortization for intangible assets with definite lives for the remaining six months of 2018, the next five years ended December 31, and thereafter, is as follows (in thousands):

2018	$	3,179
2019	4,884
2020	3,417
2021	2,847
2022	1,192
2023	926
Thereafter	2,260
Total	$	18,705

17

AXON ENTERPRISE, INC.

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

6. Other Long-Term Assets

Other long-term assets consisted of the following at June 30, 2018 and December 31, 2017 (in thousands):

	2018		2017
Cash surrender value of corporate-owned life insurance policies	$	3,847	$	3,846
Deferred commissions (1)	13,766		6,803
Restricted cash (2)	2,470		3,333
Prepaid expenses, deposits and other	2,748		1,384
Total other long-term assets	$	22,831	$	15,366

⁽¹⁾ Represents assets for the incremental costs of obtaining a contract with a customer, which consist primarily of sales commissions. These costs are ascribed to or allocated to the underlying performance obligations in the contract and amortized consistent with the recognition timing of the revenue for the underlying performance obligations. The amounts as of December 31, 2017 have not been adjusted under the modified retrospective method of adoption of Topic 606, and are presented consistent with the prior period amounts. In connection with the Company's adoption of Topic 606, it recorded an adjustment of $7.3 million as of January 1, 2018, and of that amount, $5.4 million was recorded within long-term other assets. The adjusted balance of long-term deferred commissions as of January 1, 2018 was $12.2 million.

⁽²⁾ As of June 30, 2018 and December 31, 2017, restricted cash primarily consisted of $1.8 million and $2.7 million, respectively, of sales proceeds related to long-term contracts with customers. As of June 30, 2018, the proceeds are held in escrow until certain billing milestones are achieved, and then specified amounts are transferred to the Company's operating accounts.

7. Accrued Liabilities

Accrued liabilities consisted of the following at June 30, 2018 and December 31, 2017 (in thousands):

	2018		2017
Accrued salaries, benefits and bonus	$	12,527	$	8,957
Accrued professional, consulting and lobbying fees	2,683		3,870
Accrued warranty expense	505		644
Accrued income and other taxes	2,894		2,558
Other accrued liabilities	11,386		7,473
Accrued liabilities	$	29,995	$	23,502

8. Income Taxes

ASC 740 requires a company to record the effects of a tax law change in the period of enactment; however, shortly after the enactment of the Tax Cuts and Jobs Act (the "Tax Act"), the SEC staff issued Staff Accounting Bulletin 118 ("SAB 118"), which allows a company to record a provisional amount when it does not have the necessary information available, prepared, or analyzed in reasonable detail to complete its accounting for the change in the tax law. The measurement period ends when the company has obtained, prepared and analyzed the information necessary to finalize its accounting, but cannot extend beyond one year. The Company continues to analyze the impact of the Tax Act and expects that as additional guidance from IRS Treasury is provided, further updates will be necessary.

The Tax Act imposes a U.S. entity tax on global intangible low-taxed income ("GILTI") earned by certain foreign subsidiaries. The FASB Staff Q&A, Topic 740, No. 5, Accounting for Global Intangible Low-Taxed Income, states that an entity can make an accounting policy election to either recognize deferred taxes for temporary basis differences expected to reverse as GILTI in future years or provide for the tax expense related to GILTI in the year the tax is incurred as a period expense only. Given the complexity of the GILTI provisions, we are still evaluating the effects of the GILTI provisions and have not yet determined our accounting policy. At June 30, 2018, because we are still evaluating the GILTI provisions and our analysis of future taxable income that is subject to GILTI, we have included GILTI related to current-year operations only in our EAETR (estimated annual effective tax rate) and have not provided additional GILTI on deferred items.

18

AXON ENTERPRISE, INC.

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

Deferred Tax Assets

Net deferred income tax assets at June 30, 2018, include capitalized R&D costs, R&D tax credits, stock-based compensation expense, deferred revenue, warranty and inventory reserves, accrued vacation, and other items, partially offset by accelerated depreciation expense and intangible amortization that is not tax deductible. The Company’s total net deferred tax assets at June 30, 2018 were $15.8 million.

In preparing the Company’s condensed consolidated financial statements, management assesses the likelihood that its deferred tax assets will be realized from future taxable income. In evaluating the Company’s ability to recover its deferred income tax assets, management considers all available positive and negative evidence, including its operating results, ongoing tax planning and forecasts of future taxable income on a jurisdiction by jurisdiction basis. A valuation allowance is established if it is determined that it is more likely than not that some portion or all of the net deferred tax assets will not be realized. Management exercises significant judgment in determining its provisions for income taxes, its deferred tax assets and liabilities, and its future taxable income for purposes of assessing its ability to utilize any future tax benefit from its deferred tax assets.

Although management believes that its tax estimates are reasonable, the ultimate tax determination involves significant judgments that could become subject to audit by tax authorities in the ordinary course of business. As of each reporting date, management considers new evidence, both positive and negative, that could impact management’s view with regard to future realization of deferred tax assets. As of June 30, 2018, the Company continues to demonstrate three-year cumulative pre-tax income in the U.S. federal and Arizona tax jurisdictions; however, the Company's Arizona R&D Tax Credits start to expire in 2018 with a significant tranche with a gross value of $1.2 million expiring if not used by the end of 2019. It appears that the Company’s long term investments, which impact short term profits, will likely result in some of the R&D credits expiring before they are utilized. Therefore, management has concluded that it is more likely than not that a portion of the Company’s deferred tax assets will not be realized and has established a valuation allowance.

The Company has claimed R&D tax credits of approximately $17.0 million for federal, Arizona and California income tax purposes related to tax years 2003 to 2018. Management has made the determination that it is more likely than not that the full benefit of the R&D tax credits will not be sustained upon examination and recorded a liability for unrecognized tax benefits of $3.8 million as of June 30, 2018. In addition, management accrued $0.1 million for estimated uncertain tax positions related to certain state income tax liabilities, for a total unrecognized tax benefit as of June 30, 2018 of $3.9 million. Management expects the amount of unrecognized tax benefit liability to increase by $0.2 million within the next 12 months. Should the unrecognized benefit of $3.9 million be recognized, the Company's effective tax rate would be favorably impacted. Approximately $2.1 million of the unrecognized tax benefit associated with R&D credits has been netted against the R&D deferred tax asset.

Effective Tax Rate

The Company’s overall effective tax rate for the six months ended June 30, 2018, after discrete period adjustments, was (7.9)%. Before discrete adjustments, the tax rate was 22.8%, which is more than the federal statutory rate primarily due to state taxes and non-deductible expenses for items such as meals and entertainment, executive compensation limitation under IRC section 162(m), lobbying fees, an income inclusion from GILTI, offset by a reduction for foreign-derived intangible income ("FDII"). This was partially offset by R&D tax credit deductions. The effective tax rate was favorably impacted by a $6.1 million discrete tax benefit primarily associated with windfalls related to stock-based compensation for RSUs that vested or stock options that were exercised during the six months ended June 30, 2018. Of this amount $3.4 million related to stock options exercised by the Company's CEO in connection with the Company's follow-on offering.

9. Stockholders’ Equity

Follow-On Offering

In May 2018, the Company sold 4,645,000 shares of its common stock, which included 645,000 shares pursuant to the full exercise of the underwriters' option to purchase additional shares, in an underwritten public offering at a price of $53.00 per share, which resulted in gross proceeds of $246.2 million. Net proceeds to the Company after deducting fees, commissions, and other expenses related to the offering were $234.0 million.

CEO Performance Award

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On May 24, 2018 (the “Grant Date”), our stockholders approved the Board of Directors’ grant of 6,365,856 stock option awards to Patrick W. Smith, the Company's CEO (the “CEO Performance Award”). The CEO Performance Award consists of 12 vesting tranches with a vesting schedule based entirely on the attainment of both operational goals (performance conditions) and market capitalization goals (market conditions), assuming continued employment either as the CEO or as both Executive Chairman and Chief Product Officer and service through each vesting date. Each of the 12 vesting tranches of the CEO Performance Award have a 10-year contractual term and will vest upon certification by the Board of Directors that both (i) the market capitalization goal for such tranche, which begins at $2.5 billion for the first tranche and increases by increments of $1.0 billion thereafter, and (ii) any one of the following eight operational goals focused on revenue or eight operational goals focused on Adjusted EBITDA have been met for the previous four consecutive fiscal quarters. Adjusted EBITDA is defined as net income (loss) attributable to common stockholders before interest expense, provision (benefit) for income taxes, depreciation and amortization, gains and losses on dispositions of property and equipment and intangible assets, and stock-based compensation expense.

Eight Separate Revenue Goals (1) (in thousands)	Eight Separate Adjusted EBITDA-Goals (in thousands)
Goal #1, $710,058	Goal #9, $125,000
Goal #2, $860,058	Goal #10, $155,000
Goal #3, $1,010,058	Goal #11, $175,000
Goal #4, $1,210,058	Goal #12, $190,000
Goal #5, $1,410,058	Goal #13, $200,000
Goal #6, $1,610,058	Goal #14, $210,000
Goal #7, $1,810,058	Goal #15, $220,000
Goal #8, $2,010,058	Goal #16, $230,000

⁽¹⁾ In connection with the business combination that was completed during the three months ended June 30, 2018 (Note 15), the revenue goals have been adjusted for the acquiree's Target Revenue, as defined in the CEO Performance Award agreement.

As of June 30, 2018, the following operational goals were considered probable of achievement:

• Total revenue of $710.1 million; and

• Adjusted EBITDA of $125.0 million

Stock-based compensation expense associated with the CEO Performance Award is recognized over the longer of the expected achievement period for each pair of market capitalization and operational goals, beginning at the point in time when the relevant operational goal is considered probable of being met. The market capitalization goal period and the valuation of each tranche are determined using a Monte Carlo simulation and is used as the basis for determining the expected achievement period of the market capitalization goal. The probability of meeting an operational goal and the expected achievement point in time for meeting a probable operational goal are based on a subjective assessment of our forward-looking financial projections, taking into consideration statistical analysis. Even though no tranches of the CEO Performance Award vest unless a market capitalization and a matching operational goal are both achieved, stock-based compensation expense is recognized only when an operational goal is considered probable of achievement regardless of whether a market capitalization goal is actually achieved. Additionally, stock-based compensation represents a non-cash expense and is recorded as a selling, general, and administrative operating expense on the Company's condensed and consolidated statement of operations.

None of the stock options granted under the CEO Performance Award have vested thus far as the market capitalization goals and operational goals have not yet been achieved as of June 30, 2018. However, as there are two operational goals considered probable of achievement, the Company recorded stock-based compensation expense of $0.5 million related to the CEO Performance Award from the Grant Date through June 30, 2018. The number of stock options expected to vest is 1.1 million shares.

As of June 30, 2018, the Company had $44.8 million of total unrecognized stock-based compensation expense for the performance goals that were considered probable of achievement, which will be recognized over a weighted-average period of 9.2 years. As of June 30, 2018, the Company had unrecognized stock-based compensation expense of $200.7 million for the performance goals that were considered not probable of achievement.

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The Company measured the fair value of the CEO Performance Award using a Monte Carlo simulation approach with the following assumptions: risk-free interest rate of 2.98%, expected term of 10 years, expected volatility of 47.71% and dividend yield of 0.00%.

Stock Incentive Plan

In May 2018, the Company’s stockholders approved a new stock incentive plan authorizing an additional 1.0 million shares, plus remaining available shares under prior plans, for issuance under the new plan. Combined with the legacy stock incentive plans, there are 1.7 million shares available for grant as of June 30, 2018.

Performance-based stock awards

The Company has issued performance-based stock options and performance-based restricted stock units ("RSUs"), the vesting of which is contingent upon the achievement of certain performance criteria related to the operating performance of the Company, as well as successful and timely development and market acceptance of the Company's products.

RSUs are classified as equity and measured at the fair market value of the underlying stock at the grant date. The Company recognizes RSU expense using the straight-line attribution method over the requisite service period. For performance-based RSUs containing only performance conditions, compensation cost is recognized using the accelerated attribution model over the explicit or implicit service period. For awards containing multiple service, performance or market conditions, where all conditions must be satisfied prior to vesting, compensation expense is recognized over the longest explicit, implicit or derived service period, based on management’s estimate of the probability of the performance criteria being satisfied, adjusted at each balance sheet date.

For performance-based options, stock-based compensation expense is recognized over the expected performance achievement period of individual performance goals when the achievement of each individual performance goal becomes probable. For performance-based options with a vesting schedule based entirely on the attainment of both performance and market conditions, stock-based compensation expense is recognized for each pair of performance and market conditions over the longer of the expected achievement period of the performance and market conditions, beginning at the point in time that the relevant performance condition is considered probable of achievement. The fair value of such awards is estimated on the grant date using Monte Carlo simulations.

Restricted Stock Units

The following table summarizes RSU activity for the six months ended June 30, 2018 (number of units and aggregate intrinsic value in thousands):

	Number of Units		Weighted Average Grant-Date Fair Value		Aggregate Intrinsic Value
Units outstanding, beginning of year	2,348		$	23.47
Granted	281		40.79
Released	(436	)	24.08
Forfeited	(172	)	22.40
Units outstanding, end of period	2,021		25.89		$	127,687

Aggregate intrinsic value represents the Company’s closing stock price on the last trading day of the period, which was $63.18 per share, multiplied by the number of RSUs outstanding. As of June 30, 2018, there was $41.7 million in unrecognized compensation costs related to RSUs under the Company's stock plans. The Company expects to recognize the cost related to the RSUs over a weighted average period of 2.58 years. RSUs are released when vesting requirements are met.

During the six months ended June 30, 2018, the Company granted 0.1 million performance-based RSUs. As of June 30, 2018, the performance criteria had not been met for any of the 0.5 million performance-based RSUs outstanding.The performance-based RSUs granted in 2018, 2017 and 2016 contain provisions whereby the amount of RSUs that ultimately vest is dependent upon the level of achievement of performance metrics. The amount of RSUs included in the table above related to such grants is the target level, which is the Company's best estimate of the amount of RSUs that will vest. The maximum additional number of performance-based RSUs that could be earned is 0.4 million, which are not included in the table above.

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Certain RSUs that vested in the six months ended June 30, 2018 were net-share settled such that the Company withheld shares with value equivalent to the employees’ minimum statutory obligation for the applicable income and other employment taxes, and remitted the cash to the appropriate taxing authorities. Total shares withheld were 0.1 million and had a value of $4.6 million on their respective vesting dates as determined by the Company’s closing stock price on such dates. Payments for the employees’ tax obligations are reflected as a financing activity within the statement of cash flows. The Company records a liability for the tax withholding to be paid by the Company as a reduction to additional paid-in capital.

Stock Option Activity

The following table summarizes stock option activity for the six months ended June 30, 2018 (number of units and aggregate intrinsic value in thousands):

	Number of Options		Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (years)	Aggregate Intrinsic Value
Options outstanding, beginning of year	804		$	4.99
Granted	6,366		28.58
Exercised	(418	)	5.30
Expired / terminated	—		—
Options outstanding, end of period	6,752		27.21		9.40	$	242,866
Options exercisable, end of period	382		4.65		1.06	22,354
Options expected to vest, end of period	1,062

Aggregate intrinsic value represents the difference between the exercise price of the underlying stock option awards and the closing market price of the Company's common stock of $63.18 on June 30, 2018. The intrinsic value of options exercised for the six months ended June 30, 2018 and 2017 was $18.8 million and $2.6 million, respectively. As of June 30, 2018, total options outstanding included 6.4 million unvested performance-based stock options, of which 1.1 million are expected to vest.

Of the total stock options exercised during the six months ended June 30, 2018, 0.3 million were exercised and the shares then sold by the Company's CEO in connection with the Company's follow-on offering. The CEO surrendered already owned shares to cover the exercise price of the option exercises. The option exercises were net-share settled such that the Company withheld shares with value equivalent to the CEO’s minimum statutory obligation for the applicable income and other employment taxes, and remitted the cash to the appropriate taxing authorities. Total shares withheld for tax purposes and surrendered to cover the option exercises were 0.1 million and 29,854, respectively, and had a value of $6.2 million and $1.6 million, respectively, on the exercise date as determined by the Company’s closing stock price on that day. Payments for the employees’ tax obligations are reflected as a financing activity within the statement of cash flows. The Company records a liability for the tax withholding to be paid by the Company as a reduction to additional paid-in capital.

Stock-based Compensation Expense

The following table summarizes the composition of stock-based compensation for the three and six months ended June 30, 2018 and 2017 (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2018		2017		2018		2017
Cost of products sold and services delivered	$	125	$	155	$	266	$	234
Sales, general and administrative expenses	2,731		2,155		5,035		4,183
Research and development expenses	2,098		1,666		3,746		3,006
Total stock-based compensation	$	4,954	$	3,976	$	9,047	$	7,423

Stock Repurchase Plan

In February 2016, the Company's Board of Directors authorized a stock repurchase program to acquire up to $50.0 million of the Company’s outstanding common stock subject to stock market conditions and corporate considerations. During the six

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months ended June 30, 2018 and 2017, no common shares were purchased under the program. As of June 30, 2018, $16.3 million remains available under the plan for future purchases. The Company suspended its 10b5-1 plan during 2016, and any future purchases will be discretionary.

10. Line of Credit

The Company has a $10.0 million revolving line of credit with a domestic bank. At both June 30, 2018 and December 31, 2017, there were no borrowings under the line. Under the terms of the line of credit, available borrowings are reduced by outstanding letters of credit. As of June 30, 2018, the Company had letters of credit outstanding of $2.7 million under the facility, and available borrowing of $7.3 million. The line is secured by substantially all of the assets of the Company, and bears interest at varying rates (currently LIBOR plus 1.25% or Prime less 0.50%). The line of credit matures on December 31, 2018, and requires monthly payments of interest only. The Company’s agreement with the bank requires it to comply with a maximum funded debt to earnings before interest, taxes, depreciation and amortization ("EBITDA") ratio, as defined, of no greater than 2.00 to 1.00 based upon a trailing twelve-month period. At June 30, 2018, the Company’s funded debt to EBITDA ratio was 0.002 to 1.00.

11. Commitments and Contingencies

Product Litigation

The Company is currently named as a defendant in seven lawsuits in which the plaintiffs allege either wrongful death or personal injury in situations in which a TASER CEW was used by law enforcement officers in connection with arrests. While the facts vary from case to case, the product liability claims are typically based on an alleged product defect resulting in injury or death, usually involving a failure to warn, and the plaintiffs are seeking monetary damages. The information throughout this note is current through the date of these financial statements.

As a general rule, it is the Company’s policy not to settle suspect injury or death cases. Exceptions are sometimes made where the settlement is strategically beneficial to the Company. Also, on occasion, the Company’s insurance company has settled such lawsuits over the Company’s objection where the risk is over the Company’s liability insurance deductibles. Due to the confidentiality of the Company's litigation strategy and the confidentiality agreements that are executed in the event of a settlement, the Company does not identify or comment on which specific lawsuits have been settled or the amount of any settlement.

In 2009, the Company implemented new risk management strategies, including revisions to product warnings and training to better protect both the Company and its customers from litigation based on “failure to warn” theories - which comprise the vast majority of the cases against the Company. These risk management strategies have been highly effective in reducing the rate and exposure from litigation post-2009. From the third quarter of 2011 to the second quarter of 2018, product liability cases have been reduced from 55 to seven active cases.

Management believes that pre-2009 cases have a different risk profile than cases which have occurred since the risk management procedures were introduced in 2009. Therefore, the Company necessarily treats certain pre-2009 cases as exceptions to the Company’s general no settlement policy in order to reduce caseload, legal costs and liability exposure.

The Company intends to continue its successful practice of aggressively defending and generally not settling litigation except in very limited and unusual circumstances as described above. With respect to each of the pending lawsuits, the following table lists the name of plaintiff, the date the Company was served with process, the jurisdiction in which the case is pending, the type of claim and the status of the matter.

Plaintiff	Month Served	Jurisdiction	Claim Type	Status
Derbyshire	Nov-09	Ontario, Canada Superior Court of Justice	Officer Injury	Discovery Phase. Trial scheduled for October 14, 2019.
Shymko	Dec-10	The Queen's Bench, Winnipeg Centre, Manitoba	Wrongful Death	Pleading Phase, currently inactive
Ramsey	Jan-12	12th Judicial Circuit Court, Broward County, FL	Wrongful Death	Discovery Phase, currently inactive
Bennett	Sep-15	11th Judicial Circuit Court, Miami-Dade County, FL	Wrongful Death	Discovery Phase
Masters	Nov-16	U.S. District Court, Western District of Missouri	Suspect Injury	Discovery Phase. Trial scheduled for December 10, 2018.
Taylor	Mar-17	U.S, District Court, Southern District of Texas	Officer Injury	Dispositive Motion Phase: The Company filed its motion for summary judgment on April 20, 2018
Wiggington	Apr-18	U.S, District Court, Western District Court of Missouri	Wrongful Death	Pleading Phase

No product liability cases were dismissed or judgments entered during the first six months of 2018 and through the date of these financial statements and there are no product litigation matters in which the Company is involved that are currently on appeal.

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The claims, and in some instances the defense, of each of these lawsuits have been submitted to the Company’s insurance carriers that maintained insurance coverage during the applicable periods. The Company continues to maintain product liability insurance coverage with varying limits and deductibles. The following table provides information regarding the Company’s product liability insurance. Remaining insurance coverage is based on information received from the Company’s insurance provider (in millions).

Policy Year	Policy Start Date	Policy End Date	Insurance Coverage		Deductible Amount		Defense Costs Covered	Remaining Insurance Coverage		Active Cases and Cases on Appeal
2009	12/15/2008	12/15/2009	$	10.0	$	1.0	N	$	10.0	Derbyshire
2010	12/15/2009	12/15/2010	10.0		1.0		N	10.0		Shymko
2011	12/15/2010	12/15/2011	10.0		1.0		N	10.0		n/a
Jan-Jun 2012	12/15/2011	6/25/2012	7.0		1.0		N	7.0		Ramsey
Jul-Dec 2012	6/25/2012	12/15/2012	12.0		1.0		N	12.0		n/a
2013	12/15/2012	12/15/2013	12.0		1.0		N	12.0		n/a
2014	12/15/2013	12/15/2014	11.0		4.0		N	11.0		n/a
2015	12/15/2014	12/15/2015	10.0		5.0		N	10.0		Bennett
2016	12/15/2015	12/15/2016	10.0		5.0		N	10.0		Masters
2017	12/15/2016	12/15/2017	10.0		5.0		N	10.0		Taylor
2018	12/15/2017	12/15/2018	10.0		5.0		N	10.0		Wiggington

Other Litigation

Phazzer Patent Infringement Litigation

In February 2016, the Company filed a complaint against Phazzer Electronics Inc. (“Phazzer”) for patent infringement, trademark infringement and false advertising. On July 21, 2017, the U.S. District Court for the Middle District of Florida (Case No. 6:16-cv-00366-PGB-KRS) granted the Company's Motion for Sanctions and for a Permanent Injunction against Florida-based Phazzer. The Court issued a broad permanent injunction against Phazzer banning sales of the infringing Phazzer Enforcer CEWs and dart cartridges. The injunction prohibits Phazzer and its officers, agents, employees, and anyone acting in concert with them, from making, using, offering for sale, selling, distributing, importing or exporting Phazzer CEWs and associated cartridges. Phazzer is further enjoined from dumping its infringing inventory by “donating” CEWs to law enforcement, and from false advertising and comparison to TASER brand products. Both Phazzer and its U.S. distributors are barred from exporting CEWs or cartridges to fill foreign orders. On August 10, 2017, Phazzer filed a notice of appeal to the Federal Circuit, which is fully briefed but remains pending. Phazzer's multiple attempts to stay the injunction pending appeal have been denied by both the district and appellate courts.

On April 4, 2018, the Court entered a judgment for the Company against Phazzer in an amount exceeding $7.8 million which included an award to the Company of compensatory and treble damages for willful infringement, and also an award of reasonable attorneys’ fees and costs. The collectability of this judgment is in doubt since Phazzer has informed the Court that it is insolvent. On May 1, 2018, Phazzer appealed the damages award to the Federal Circuit. On May 11, 2018, the district court entered final judgment against Phazzer ending the district court proceedings.

In imposing severe sanctions against Phazzer, the Court found that Phazzer “engaged in a pattern of bad faith conduct designed and intended to delay, stall, and increase the cost of this litigation,” and that Phazzer repeatedly disregarded Court Orders thereby exhibiting “contemptuous”, “egregious”, “flagrant” and “intentional obstructionist behavior” resulting in willful “abuse [of] the judicial process.” The Court made similar findings in both the damages and contempt orders.

On April 27, 2017, during the district court litigation, Phazzer filed a second petition for reexamination of the Company’s patent with the USPTO. The Company’s patent (U.S. No. 7,234,262) at issue in the litigation relates to the CEW’s data recording of date and time of each trigger operation and duration of the stimulus. On April 2, 2018, the examiner issued a final office action rejecting all claims. The Company is appealing this decision. The Company’s patent remains valid and enforceable unless and until all appeals are exhausted and the patent is formally canceled (at least a 2-year process). The Phazzer injunction remains in full force and effect.

The Company's trademark that is the subject of the injunction is Federal Registration No. 4,423,789, relating to the non-functional shape of TASER CEW cartridges used to launch the darts. The injunction covers all Phazzer CEW dart cartridges that

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are confusingly similar to, or not more than a colorable imitation of, TASER CEW cartridges. During the litigation, Phazzer filed a petition to cancel the Company’s trademark, which the Trademark Board stayed until the conclusion of the district court litigation and all related appeals.

Digital Ally Patent Litigation

In February 2016, the Company was served with a first amended complaint filed by Digital Ally Inc. (“Digital”) in the District of Kansas (Case No. CV-16-02032-CM-JPO) alleging patent infringement regarding the Company's Axon Signal technology, commercial bribery, antitrust, and unfair competition. In March 2016, the Company was served with a second amended complaint with similar allegations. The second amended complaint seeks a judgment of infringement, monetary damages, a permanent injunction, punitive damages and attorneys’ fees and costs.

Digital Ally’s complaint has been substantially narrowed based on (1) the district court’s dismissal of all of Digital’s antitrust claims in January 2017, which was affirmed by the Federal Circuit in May 2018; (2) the district court’s dismissal of Digital’s ‘292 patent from the litigation with prejudice in March 2018, and Digital’s execution of a covenant not to sue Axon on that patent on all existing Axon products; and (3) Digital’s dismissal of certain inconsistent claims in the ‘452 patent, leaving only independent claim 10 for resolution by the Court. The Company believes the remaining claim of the ‘452 patent is invalid and not infringed, and is vigorously defending this litigation.

After instituting inter parte review of Digital’s ‘292 patent in June 2017, the Patent Trial and Appeal Board ("PTAB") ultimately rejected the Company’s invalidity challenge on June 1, 2018. Although this patent is no longer at issue in the litigation, the Company is appealing this ruling.

On July 19, 2018, the district court issued its claim construction ruling on three disputed claim terms in the remaining claim 10 of Digital’s ‘452 patent. This ruling now triggers various discovery and other deadlines in the litigation, including mandatory mediation. No trial date has been set, but the Court has set certain other deadlines, including mediation no later than December 3, 2018 and a pretrial conference on January 16, 2019 (where a trial date may be set).

Antoine di Zazzo Arbitration

In April 2016, the Company was served with a notice of arbitration claim filed by Antoine di Zazzo, the Company’s former distributor in France, for commissions allegedly owed Mr. di Zazzo. The arbitration claim was filed with the International Court of Arbitration of the International Chamber of Commerce in Paris, France, and the amount that is claimed in controversy is $0.6 million. The Company’s records reflect that all commissions that were due Mr. di Zazzo under his contract were paid or offered to him and the Company will vigorously defend this arbitration claim.

Richey Class Action Litigation

On June 25, 2018, consumer weapon purchaser Douglas Richey (“Richey”) filed a class action lawsuit against the Company in the Northern District of California (Case No. 3:18-cv-03751-WHA) purporting to assert claims on behalf of all persons in the United States who purchased or acquired a TASER Pulse, TASER X2 and TASER X26P model CEW in the four-year period preceding the complaint. Richey claims his Pulse CEW discharged while in its case in his jacket pocket due to a faulty safety switch. He was not injured. He alleges violation of the Magnuson-Moss Warranty Act, 15 U.S.C. § 2310(D)(1), the Song-Beverly Consumer Warranty Act for Breach of Express Warranty, Cal. Civ. Code § 1790, and California's Consumers Legal Remedies Act, as well as fraudulent omission and unjust enrichment. The Company is preparing to file a motion to dismiss the complaint, which it believes is meritless.

Appeals

Four appeals are currently pending in the Federal Circuit regarding various orders entered in the Phazzer litigation (see above). Appeal No. 17-2637 relates to the district court’s July 21, 2017 sanctions order and permanent injunction and is fully briefed. The other three appeals relating to the district court’s April 4, 2018 damages award in the Company’s favor (No. 18-1914) and its May 4, 2018 contempt order as to Phazzer (No. 18-2059) and Abboud (No. 20-1857) have been consolidated. Phazzer and Abboud’s opening briefs are due August 10, 2018.

On May 2, 2018, the Federal Circuit issued its judgment in the Company’s favor affirming the district court’s dismissal of

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Digital’s antitrust claims (discussed above). On July 6, 2018, Digital filed a Petition for Writ of Certiorari with the U.S. Supreme Court. The Company has waived its response believing the petition is frivolous.

Voluntary Request Letter from the U.S. Federal Trade Commission

On or about June 14, 2018, the Company received a letter from the U.S. Federal Trade Commission (“FTC”) with respect to its non-public investigation into the Company’s recent acquisition of VIEVU, LLC. See Note 15 for additional information regarding the VIEVU acquisition.  In the letter, the FTC has requested that the Company provide, on a voluntary basis, certain information and documentation relating to its acquisition of VIEVU. The Company is reviewing the letter and the information request and is cooperating with the investigation. 

General

From time to time, the Company is notified that it may be a party to a lawsuit or that a claim is being made against it. It is the Company’s policy to not disclose the specifics of any claim or threatened lawsuit until the summons and complaint are actually served on the Company. After carefully assessing the claim, and assuming the Company determines that it is not at fault or it disagrees with the damages or relief demanded, the Company vigorously defends any lawsuit filed against the Company. In certain legal matters, the Company records a liability when losses are deemed probable and reasonably estimable. In evaluating matters for accrual and disclosure purposes, the Company takes into consideration factors such as our historical experience with matters of a similar nature, the specific facts and circumstances asserted, the likelihood of our prevailing, the availability of insurance, and the severity of any potential loss. The Company reevaluates and updates accruals as matters progress over time.

Based on the Company's assessment of outstanding litigation and claims as of June 30, 2018, the Company has determined that it is not reasonably possible that these lawsuits will individually, or in the aggregate, materially affect its results of operations, financial condition or cash flows. However, the outcome of any litigation is inherently uncertain and there can be no assurance that any expense, liability or damages that may ultimately result from the resolution of these matters will be covered by its insurance or will not be in excess of amounts recognized or provided by insurance coverage and will not have a material adverse effect on our operating results, financial condition or cash flows.

Off-Balance Sheet Arrangements

Under certain circumstances, the Company uses letters of credit and surety bonds to guarantee its performance under various contracts, principally in connection with the installation and integration of its Axon cameras and related technologies. Certain of the Company's letters of credit and surety bonds have stated expiration dates with others being released as the contractual performance terms are completed. At June 30, 2018, the Company had outstanding letters of credit of $2.7 million that are expected to expire in May 2019. Additionally, the Company had $14.1 million of outstanding surety bonds at June 30, 2018, with $1.0 million expiring in 2018, $0.1 million expiring in 2020, $2.3 million expiring in 2021, $3.1 million expiring in 2022 and the remaining $7.5 million expiring in 2023.

12. Related Party Transactions

The Company subscribes to various cloud-based applications from Salesforce. Bret Taylor, a member of the Company's Board of Directors, serves as President and Chief Product Officer of Salesforce. The Company incurs costs at different times throughout the year, typically in advance of services being provided, and subsequently amortizes these costs ratably to expense as services are provided over the contractual term. The Company made payments of $1.7 million related to these services during each of the three and six months ended June 30, 2018, and made payments of $0.2 million and $1.2 million during the three and six months ended June 30, 2017, respectively.

13. Employee Benefit Plans

The Company has a defined contribution profit sharing 401(k) plan for eligible employees, which is qualified under Sections 401(a) and 401(k) of the Internal Revenue Code of 1986, as amended. Employees are entitled to make tax-deferred contributions of up to the maximum amount allowed by law of their eligible compensation.

The Company also has a non-qualified deferred compensation plan for certain executives, key employees and non-employee directors through which participants may elect to postpone the receipt and taxation of a portion of their compensation, including stock-based compensation, received from the Company. The non-qualified deferred compensation plan allows eligible participants to defer up to 80% of their base salary and up to 100% of other types of compensation. The plan also allows for matching and discretionary employer contributions. Employee deferrals are deemed 100% vested upon contribution. Distributions from the plan are made upon retirement, death, separation of service, specified date or upon the occurrence of an unforeseeable emergency. Distributions can be paid in a variety of forms from lump sum to installments over a period of years. Participants in the plan are entitled to select from a wide variety of investments available under the plan and are allocated gains or losses based upon the performance of the investments selected by the participant. All gains or losses are allocated fully to plan participants and the Company does not guarantee a rate of return on deferred balances. Assets related to this plan consist of corporate-owned life

26

insurance contracts and are included in other assets in the condensed consolidated balance sheets. Participants have no rights or claims with respect to any plan assets and any such assets are subject to the claims of the Company’s general creditors.

Contributions to the plans are made by both the employee and the Company. Company contributions to the 401(k) plan are based on the level of employee contributions and are immediately vested. The Company’s matching contributions to the 401(k) plan for the three months ended June 30, 2018 and 2017, were $0.8 million and $0.6 million, respectively, and $1.6 million and $1.3 million for the six months ended June 30, 2018 and 2017, respectively. Future matching or profit sharing contributions to the plans are at the Company’s sole discretion.

14. Segment Data

The Company is comprised of two reportable segments: the manufacture and sale of CEWs, batteries, accessories, extended warranties and other products and services (the “TASER Weapons” segment); and the software and sensors business, which includes the sale of devices, wearables, applications, cloud and mobile products (collectively, the “Software and Sensors” segment). Within the Software and Sensors segment, the Company specifies sales of products and services. Revenue from the Company's “products” in the Software and Sensors segment are generally sales of sensors, including on-officer body cameras, Axon Fleet cameras, other hardware sensors, warranties on sensors,and other products, and is sometimes referred to as Sensors and Other revenue. Revenue from the Company's “services” in the Software and Sensors segment comprise sales related to the Axon Cloud, which includes Evidence.com, cloud-based evidence management software revenue, other recurring cloud-hosted software revenue and related professional services, and is sometimes referred to as Axon Cloud revenue. Within the Software and Sensors segment, the Company includes only revenues and costs attributable to that segment which include: costs of sales for both products and services, direct labor, selling expenses for the sales team, product management and R&D for products included, or to be included, within the Software and Sensors segment. All other costs are included in the TASER Weapons segment. The Company’s Chief Executive Officer, who is the CODM, is not provided asset information by segment, and therefore, no asset information is provided.

Information relative to the Company’s reportable segments was as follows (in thousands):

	Three Months Ended June 30, 2018							Three Months Ended June 30, 2017 (1)
	TASER Weapons		Software and Sensors			Total		TASER Weapons		Software and Sensors			Total
Net sales from products (2)	$	60,624	$	16,097		$	76,721	$	53,016	$	13,859		$	66,875
Net sales from services (3)	—		22,505			22,505		—		12,768			12,768
Net sales	60,624		38,602			99,226		53,016		26,627			79,643
Cost of product sales	17,681		13,406			31,087		16,078		14,094			30,172
Cost of service sales	—		4,996			4,996		—		3,834			3,834
Cost of sales	17,681		18,402			36,083		16,078		17,928			34,006
Gross margin	42,943		20,200			63,143		36,938		8,699			45,637
Sales, general and administrative	21,920		17,423			39,343		17,492		14,332			31,824
Research and development	4,019		14,482			18,501		1,863		11,126			12,989
Income (loss) from operations	$	17,004	$	(11,705	)	$	5,299	$	17,583	$	(16,759	)	$	824

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AXON ENTERPRISE, INC.

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

	Six Months Ended June 30, 2018							Six Months Ended June 30, 2017 (1)
	TASER Weapons		Software and Sensors			Total		TASER Weapons		Software and Sensors			Total
Net sales from products (2)	$	124,148	$	33,547		$	157,695	$	110,687	$	23,679		$	134,366
Net sales from services (3)	—		42,746			42,746		—		24,519			24,519
Net sales	124,148		76,293			200,441		110,687		48,198			158,885
Cost of product sales	38,224		25,297			63,521		34,104		23,140			57,244
Cost of service sales	—		9,316			9,316		—		7,334			7,334
Cost of sales	38,224		34,613			72,837		34,104		30,474			64,578
Gross margin	85,924		41,680			127,604		76,583		17,724			94,307
Sales, general and administrative	43,185		31,917			75,102		34,708		27,973			62,681
Research and development	6,979		26,641			33,620		4,075		21,377			25,452
Income (loss) from operations	$	35,760	$	(16,878	)	$	18,882	$	37,800	$	(31,626	)	$	6,174

⁽¹⁾ Amounts for the three and six months ended June 30, 2017 have not been adjusted under the modified retrospective method of adoption of Topic 606, and are presented consistent with the prior period amounts reported under ASC 605.

⁽²⁾ Software and Sensors “products” revenue consists of sales of sensors, including on-officer body cameras, Axon Fleet cameras, other hardware sensors, warranties on sensors, and other products, and is sometimes referred to as Sensors and Other revenue.

⁽³⁾ Software and Sensors “services” revenue comprises sales related to the Axon Cloud, which includes Evidence.com, cloud-based evidence management software revenue, other recurring cloud-hosted software revenue and related professional services and is sometimes referred to as Axon Cloud revenue.

15. Business Acquisition

On May 3, 2018, the acquisition date, the Company acquired all of the outstanding ownership interests of VIEVU, a public safety camera and cloud-based evidence management system provider for law enforcement agencies.

The estimated purchase price of $17.3 million consisted of $5.0 million in cash, net of cash acquired of $0.1 million, and $2.4 million or 58,843 shares of the Company's common stock issued to VIEVU’s parent company, Safariland, LLC (“Safariland”). Additionally, the purchase price consisted of contingent consideration of up to $6.0 million or 141,226 additional shares of common stock if certain conditions relating to retention of certain VIEVU customers are met as of the first and second anniversaries of the acquisition date. The fair value of the contingent consideration as of the acquisition date was $5.8 million. The purchase price also included the fair value of a long-term Product Development and Supplier Agreement (the “Supply Agreement”) with Safariland, pursuant to which Safariland will be the Company’s preferred provider of holsters for its CEW products. The estimated fair value of the Supply Agreement as of the acquisition date was $4.2 million, a portion of which was recorded within accrued liabilities and the remaining portion recorded within other long-term liabilities.

Pursuant to ASC 805, the acquisition of VIEVU has been accounted for as a business combination, under the acquisition method of accounting, which resulted in acquired assets and assumed liabilities being measured at their estimated fair values as of the acquisition date. As of the acquisition date, goodwill was measured as the excess of consideration transferred, which is also generally measured at fair value, over the net acquisition date fair values of the assets acquired and liabilities assumed. The final purchase price and purchase price allocation will be determined when the Company has completed the detailed valuations and necessary calculations. The final purchase price and purchase price allocation could differ materially from the preliminary allocation disclosed below. The final allocation may include (1) changes in the fair value of the contingent consideration and Supply Agreement, and (2) changes in fair values of assets and liabilities, including intangible assets and goodwill.

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AXON ENTERPRISE, INC.

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS – (Continued)

The major classes of assets and liabilities to which the Company has allocated the purchase price, on a preliminary basis, were as follows (in thousands):

Accounts receivable	$	1,776
Inventory	2,626
Prepaid expenses and other assets	314
Property and equipment	459
Contract assets	1,472
Intangible assets	4,500
Goodwill	9,870
Accounts payable and accrued liabilities	(3,172		)
Deferred revenue	(543		)
Total purchase price	$	17,302

The Company has assigned the goodwill to the Software and Sensors segment. Identifiable definite-lived intangible assets were assigned a total weighted average amortization period of 5.1 years. VIEVU has been included in the Company's consolidated results of operations subsequent to the acquisition date. Revenue and loss from operations included in the Company's consolidated financial statements from the acquisition date through June 30, 2018 were $2.2 million and $1.2 million, respectively. Pro forma results of operations for VIEVU have not been presented because they are not material to the consolidated results of operations. In connection with the acquisition, the Company incurred and expensed costs of approximately $0.7 million, which included legal, accounting and other third-party expenses related to the transaction. Subsequent to the acquisition date, the Company recorded an expense of $0.6 million related to purchase commitments assumed in the VIEVU business combination that exceeded estimated future demand.

Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

The following is a discussion of the Company’s financial condition as of June 30, 2018, and results of operations for the six months ended June 30, 2018 and 2017. The following discussion may be understood more fully by reference to the consolidated financial statements, notes to the consolidated financial statements, and Management’s Discussion and Analysis of Financial Condition and Results of Operations section contained in the Company’s Annual Report on Form 10-K for the year ended December 31, 2017.

Certain statements contained in this report that are not historical are “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933, as amended (the “Securities Act”), and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), including statements regarding our expectations, beliefs, intentions and strategies regarding the future. We intend that such forward-looking statements be subject to the safe-harbor provided by the Private Securities Litigation Reform Act of 1995. Such forward-looking statements relate to, among other things: our intentions and beliefs about future development efforts and activities, including our intentions to invest in R&D as well as the development of new product and service lines and enhanced features for our existing product and service lines; intentions to shift an increasing amount of business to a subscription model; our need that customers upgrade and replace existing conducted electrical weapons (“CEW”) units and the willingness of customers to do so; that we may have more sales denominated in foreign currencies in 2018; our intention to increase our investment in the development of sales in the international, military and law enforcement market; our plans to expand our sales force; that cloud and mobile technologies are fundamentally changing the police environment; our plan to invest in web activities and law enforcement trade shows in 2018; our intention to not pay dividends; that increases in marketing and sales activities will lead to an increase in sales; our belief that the video evidence capture and management market will grow significantly in the near future and the reasons for that belief; our intention to continue to pursue the personal security market; our intention to grow direct sales; the sufficiency of our facilities and our strategy to expand manufacturing capacity if needed; that we may lease facilities from parties that specialize in handling and manufacturing of firearm materials; that we expect to continue to depend on sales of our X2 and X26P CEW devices; our intention to apply for and prosecute our patents; that selling, general and administrative expense will increase in 2018; that research and development expenses will increase in 2018; the timing of the resolution of uncertain tax positions; our intention to hold investments to maturity; the effect of interest rate changes on our annual interest income; that we may engage in currency hedging activities; our intentions concerning, and the effectiveness of, our ongoing marketing efforts through web activities, trial programs, tech summits and law enforcement trade shows; our belief that customers will honor multi-year contracts despite the existence of appropriations, termination for convenience. or similar clauses; our belief

29

that customers will renew their Evidence.com service subscriptions at the end of the contractual term; estimates regarding the size of our target markets and our competitive position in existing markets; the availability of alternative materials and components suppliers; the benefits of the continued automation of our production process; the sufficiency and availability of our liquid assets and capital resources; our financing and growth strategies, including: potential joint ventures, mergers and acquisitions, stock repurchases and hedging activities; the safety of our products; our litigation strategy, including the outcome of legal proceedings in which we are currently involved; expectations regarding increased operating leverage; our expectations of the probability of achievement of performance goals in connection with the CEO Performance Award; the impact of a loss of customer data, a breach of security or an extended outage; the effect of current and future tax strategies; the fluctuations in our effective tax rate; the impact of the U.S. Tax Cuts and Jobs Act (the “Tax Act”); the impact of recently adopted and future accounting standards; the impact of Accounting Standards Update (“ASU”) 2014-09, Revenue from Contracts with Customers (“ASU 2014-09”) and ASC Subtopic 340-40, Other Assets and Deferred Costs - Contracts with Customers ("ASC 340-40") (collectively, “Topic 606”); and the ultimate resolution of financial statement items requiring critical accounting estimates, including those set forth in our Form 10-K for the year ended December 31, 2017.

Overview

Axon Enterprise, Inc.’s (the “Company” or “Axon” or “we” or “our”) core mission is to protect life, to protect truth and to reduce social conflict through developing and selling technologies that make communities safer. We are highly focused on disrupting existing categories and bringing public safety technology into the 21st century. We are the market leader in the development, manufacture and sale of conducted electrical weapons (“CEWs”) and other electronic weapons designed for use in law enforcement, military, corrections, private security and personal defense. We have also developed a fully integrated hardware and cloud-based software solution to provide our law enforcement customers the capabilities to capture, securely store, manage, share and analyze video and other digital evidence.

Our strategic growth areas are TASER weapons, Sensors hardware including on-officer body cameras and Axon Fleet in-car video systems, our Evidence.com connected software network, and Axon Records and Computer Aided Dispatch software. These value streams exist within an estimated $7.7 billion total addressable market, comprising TASER weapons ($1.5 billion), hardware sensors ($0.7 billion), and cloud-based public safety software ($5.5 billion.)

The $1.5 billion TASER Weapons total addressable market estimates 660,000 domestic patrol officers and 1,800,000 immediately addressable international patrol officers at an average revenue of $600 per year ($50 per user per month) including the weapon, cartridges, batteries, and enhanced services currently under development.

The $5.5 billion cloud-based public safety software total addressable market estimates 1,000,000 domestic patrol officers with annual digital evidence management revenue of $750 per year ($63 per user per month, which reflects Axon current list pricing), 1,000,000 domestic police officers with annual advanced intelligence and analytics revenue of $350 per year ($29 per user per month based on estimated market pricing), 400,000 domestic patrol vehicle license evidence management annual revenue of $925 ($77 per user per month, which reflects 60% allocation to software of Axon's $129 per month listed pricing), 2,100,000 public safety employees with annual records management & computer dispatch revenue of $1,500 per year ($125 per user per month based on estimated market pricing and analysis of current existing records management systems (“RMS”) and computer aided dispatch (“CAD”) contracts), and 1,000,000 immediately addressable international officers with annual revenue of $750 per year ($63 per user per month based on Axon's current listed software pricing).

The hardware sensors $0.7 billion total addressable market estimates 660,000 domestic patrol officers and 1,000,000 immediately addressable international officers with annual camera and dock revenue of $200 per year ($16-$19 per user per month based on Axon's listed pricing), 400,000 domestic patrol vehicles with annual hardware revenue of $600 per year ($50 per user per month based on 40% of allocation to hardware of Axon's $129 per month listed pricing), and 660,000 domestic patrol officers with annual revenue of $120 per year ($10 per user per month based on Axon's listed pricing) for the Signal Sidearm product.

Our long-term financial strategy includes shifting our revenue, contracts, and cash flows from book-and-ship hardware transactions to multi-element, multi-year, subscription or recurring payment plans. During the three months ended June 30, 2018, 52% of our consolidated revenues were recognized from contracts with multiple performance obligations, while within our TASER Weapons and Software and Sensors segments, approximately 25% and 96%, respectively, were recognized from contracts containing multiple performance obligations. Recurring revenue refers to those contracts with multiple performance obligations, which we break out in more detail in the Critical Accounting Estimates.

As of June 30, 2018, we have booked 305,200 cloud-based software licenses on the Axon Cloud network and we have annual recurring run-rate Axon Cloud and Sensors and Other revenue of $92.7 million. Annual recurring run-rate revenue is calculated by annualizing our most previous reported month's recurring license, integration, warranty and storage revenue. Our long-term goal is to transition a majority of our customers to recurring payment plan or subscription contracts.

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We are also highly focused on driving operating leverage and profitability within our two reportable segments, TASER Weapons and Software and Sensors.

Results of Operations

Three Months Ended June 30, 2018 Compared to the Three Months Ended June 30, 2017

The following table presents data from our statements of operations as well as the percentage relationship to total net sales of items included in our statements of operations (dollars in thousands):

	Three Months Ended June 30,
	2018					2017 (1)
Net sales from products	$	76,721		77.3	%	$	66,875	84.0	%
Net sales from services	22,505			22.7		12,768		16.0
Net sales	99,226			100.0		79,643		100.0
Cost of product sales	31,087			31.3		30,172		37.9
Cost of service sales	4,996			5.0		3,834		4.8
Cost of sales	36,083			36.4		34,006		42.7
Gross margin	63,143			63.6		45,637		57.3
Operating expenses:
Sales, general and administrative	39,343			39.6		31,824		40.0
Research and development	18,501			18.6		12,989		16.3
Total operating expenses	57,844			58.3		44,813		56.3
Income from operations	5,299			5.3		824		1.0
Interest and other income (expense), net	(295		)	(0.3	)	1,684		2.1
Income before provision for income taxes	5,004			5.0		2,508		3.1
Provision for (benefit from) income taxes	(3,481		)	(3.5	)	232		0.3
Net income	$	8,485		8.6	%	$	2,276	2.9	%

⁽¹⁾ Amounts for the three months ended June 30, 2017 have not been adjusted under the modified retrospective method of adoption of Topic 606, and are presented consistent with the prior period amounts reported under ASC 605.

The following table presents the Company's revenues disaggregated by geography (in thousands):

	Three Months Ended June 30,
	2018				2017 (1)
United States	$	78,731	79	%	$	66,200	83	%
Other countries	20,495		21		13,443		17
Total	$	99,226	100	%	$	79,643	100	%

⁽¹⁾ Amounts for the three months ended June 30, 2017 have not been adjusted under the modified retrospective method of adoption of Topic 606, and are presented consistent with the prior period amounts reported under ASC 605.

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Net Sales

Net sales by product line were as follows (dollars in thousands):

	Three Months Ended June 30,								Dollar Change			Percent Change
	2018				2017 (1)
TASER Weapons segment:
TASER X26P	$	18,146	18.3	%	$	16,235	20.4	%	$	1,911		11.8	%
TASER X2	18,362		18.5		16,052		20.2		2,310			14.4
TASER Pulse and Bolt	1,101		1.1		801		1.0		300			37.5
Single cartridges	17,243		17.4		14,867		18.7		2,376			16.0
Extended warranties	3,738		3.8		2,991		3.8		747			25.0
Other	2,034		2.0		2,070		2.6		(36		)	(1.7	)
Total TASER Weapons segment	60,624		61.1		53,016		66.6		7,608			14.4
Software and Sensors segment:
Axon Body	4,780		4.8		3,752		4.7		1,028			27.4
Axon Flex	1,535		1.5		3,851		4.8		(2,316		)	(60.1	)
Axon Fleet	2,715		2.7		—		—		2,715			*
Axon Dock	2,119		2.1		2,783		3.5		(664		)	(23.9	)
Evidence.com and cloud services	20,357		20.5		12,756		16.0		7,601			59.6
TASER Cam	762		0.8		766		1.0		(4		)	(0.5	)
Extended warranties	2,870		2.9		1,619		2.0		1,251			77.3
Other	3,464		3.5		1,100		1.4		2,364			214.9
Total Software and Sensors segment	38,602		38.9		26,627		33.4		11,975			45.0
Total net sales	$	99,226	100.0	%	$	79,643	100.0	%	$	19,583		24.6

* Not meaningful

⁽¹⁾ Amounts for the three months ended June 30, 2017 have not been adjusted under the modified retrospective method of adoption of Topic 606, and are presented consistent with the prior period amounts reported under ASC 605.

Net unit sales for TASER Weapons handles and other products and Software and Sensors segment products were as follows:

	Three Months Ended June 30,		Unit Change		Percent Change
	2018	2017
TASER X26P	18,664	18,198	466		2.6	%
TASER X2	15,537	15,390	147		1.0
TASER Pulse and Bolt	3,158	2,347	811		34.6
Cartridges	611,136	579,282	31,854		5.5
Axon Body	20,407	26,882	(6,475	)	(24.1	)
Axon Flex	3,281	9,373	(6,092	)	(65.0	)
Axon Fleet	2,079	—	2,079		*
Axon Dock	4,534	8,269	(3,735	)	(45.2	)
TASER Cam	1,491	1,336	155		11.6

* Not meaningful

Net sales were $99.2 million and $79.6 million for the three months ended June 30, 2018 and 2017, respectively, an increase of $19.6 million or 24.6%. International revenues were $20.5 million and $13.4 million for the three months ended June 30, 2018 and 2017, respectively, an increase of $7.1 million or 52.5%.

Net sales for the TASER Weapons segment were $60.6 million and $53.0 million for the three months ended June 30, 2018 and 2017, respectively, an increase of $7.6 million or 14.4%. The Company increased sales of its TASER X26P and X2 Smart

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Weapons by $4.2 million to $36.5 million during the quarter ended June 30, 2018 as compared to $32.3 million during the same period in 2017, which was primarily attributable to increased sales under the Officer Safety Plan and TASER 60 purchase programs.

Net sales for the Software and Sensors segment were $38.6 million and $26.6 million for the three months ended June 30, 2018 and 2017, respectively, an increase of $12.0 million, or 45.0%. The Company continued to add users to its network during the three months ended June 30, 2018 resulting in steady product revenues as well as increased aggregate users which resulted in increased Evidence.com and extended warranty revenues of $7.6 million and $1.3 million, respectively. Additionally, the Company recorded revenue of $2.7 million related to Axon Fleet, the Company's in-car camera system that was released towards the end of 2017, during the three months ended June 30, 2018 with no amounts recorded during the same period in 2017.

To gain more immediate feedback regarding activity for Software and Sensors products and services, we also review bookings for these products. We consider bookings to be a statistical measure defined as the sales price of orders (not invoiced sales), including contractual optional periods we expect to be exercised, net of cancellations, placed in the relevant fiscal period, regardless of when the products or services ultimately will be provided. Most bookings will be invoiced in subsequent periods. Due to municipal government funding rules, in some cases certain of the future period amounts included in bookings are subject to budget appropriation or other contract cancellation clauses. Although the Company has entered into contracts for the delivery of products and services in the future and anticipates the contracts will be fulfilled, if agencies do not exercise contractual options, do not appropriate funds in future year budgets, or do enact a cancellation clause, revenue associated with these bookings may not ultimately be recognized, resulting in a future reduction to bookings. Bookings related to the Company's Software and Sensors segment, net of cancellations, were $88.9 million and $81.9 million during the three months ended June 30, 2018 and 2017, respectively, an increase of $6.9 million, or 8.4%.

The chart below illustrates the Company's Software and Sensors segment quarterly bookings for each of the previous six fiscal quarters (in thousands):

Cost of Product and Service Sales

Cost of product and service sales was $36.1 million and $34.0 million for the three months ended June 30, 2018 and 2017, respectively, an increase of $2.1 million, or 6.1%. As a percentage of net sales, cost of product and service sales decreased to 36.4% for the three months ended June 30, 2018 compared to 42.7% during the same period in 2017. The Company noted no significant changes in variable manufacturing costs during the three months ended June 30, 2018 as compared to the same period in 2017.

Within the TASER Weapons segment, cost of product sales increased to $17.7 million for the three months ended June 30, 2018 from $16.1 million for the same period in 2017 as a result of higher sales volumes, and decreased as a percentage of sales to 29.2% from 30.3%, respectively.

Within the Software and Sensors segment, cost of product and service sales increased to $18.4 million for the three months ended June 30, 2018 from $17.9 million for the same period in 2017 as a result of higher sales volumes, and decreased as a percentage of sales to 47.7% for the three months ended June 30, 2018 from 67.3% for the same period in 2017.

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Gross Margin

Gross margin increased $17.5 million to $63.1 million for the three months ended June 30, 2018 compared to $45.6 million for the same period in 2017. As a percentage of net sales, gross margin increased to 63.6% for the three months ended June 30, 2018 compared to 57.3% for the same period in 2017, which was primarily attributable to increased leveraging of fixed costs related to cloud storage.

As a percentage of net sales, gross margin for the TASER Weapons segment increased slightly to 70.8% from 69.7% for the three months ended June 30, 2018 and 2017, respectively. As a percentage of net sales, gross margin for the Software and Sensors segment was 52.3% and 32.7% for the three months ended June 30, 2018 and 2017, respectively. Within the Software and Sensors segment, hardware gross margin was 16.7% for the three months ended June 30, 2018 compared to a negative 1.7% for the same period in 2017, while the service margins were 77.8% and 70.0% during those same periods, respectively. The increase in hardware gross margins during the three months ended June 30, 2018 was primarily attributable to accounting changes required under the new revenue accounting standard. Previously, the level of discounting in the Company's contracts resulted in a portion of the contractual consideration allocated to the delivered hardware to be recognized as revenue ratably over the Evidence.com subscription term, while the full cost of the product was recognized when the hardware was delivered to the customer resulting in lower gross margins initially. Under the new revenue accounting standard, generally the full amount of revenue related to the delivered hardware is recognized in the period in which it is delivered resulting in better matching of the revenues and related costs. The increase in service margins during the three months ended June 30, 2018 as compared to the same period in 2017 was attributable to the reduction of non-recurring expenses related to the Company's data migration to its new cloud-storage provider that was completed in 2018, as well as increased leveraging of fixed costs related to cloud-storage.

Sales, General and Administrative Expenses

SG&A expenses were comprised as follows (dollars in thousands):

	Three Months Ended June 30,						Dollar Change		Percent Change
	2018			2017 (1)
Total sales, general and administrative expenses	$	39,343		$	31,824		$	7,519	23.6
Sales, general, and administrative as a percentage of net sales	39.6		%	40.0		%

⁽¹⁾ Amounts related to commissions expense for the three months ended June 30, 2017 have not been adjusted under the modified retrospective method of adoption of Topic 606, and are presented consistent with the prior period amounts reported under ASC 605.

Within the TASER Weapons segment, SG&A expenses increased $4.4 million, or 25.3%, to $21.9 million during the three months ended June 30, 2018 as compared to $17.5 million for the three months ended June 30, 2017. Of the increase, $2.0 million related to higher salaries, benefits, bonus and stock-based compensation related primarily to sales and marketing, professional staff and general support staff, as well as increased professional and consulting costs of $1.4 million primarily related to increased legal fees.

Within the Software and Sensors segment, SG&A expenses increased $3.1 million, or 21.6%, to $17.4 million during the three months ended June 30, 2018 as compared to $14.3 million for the same period in 2017. The increase was primarily attributable to increased costs related to salaries, benefits and bonus, inclusive of stock-based compensation and increased costs related to sales and marketing.

Research and Development Expenses

R&D expenses were comprised as follows (dollars in thousands):

	Three Months Ended June 30,						Dollar Change		Percent Change
	2018			2017
Total research and development expenses	$	18,501		$	12,989		$	5,512	42.4
Research and development as a percentage of net sales	18.6		%	16.3		%

The Company's Software and Sensors segment was responsible for 61% of the overall increase in R&D expense. Within the TASER Weapons segment, R&D expense increased $2.2 million, of which $1.7 million was related to increased salaries, benefits and bonus as the Company continues to invest in personnel allocated to the development of new CEW related technologies. The $3.4 million increase in R&D expense for the Software and Sensors segment primarily consisted of a $3.7 million increase

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related to salaries and benefits, inclusive of stock-based compensation, which was partially offset by $0.5 million of lower expenses related to external professional and consulting fees. The Company expects R&D expense to continue to increase in absolute dollars as it invests in the deployment of new CEW technologies and focuses on growing the Software and Sensors segment as it adds headcount and additional resources to develop new products and services to further advance its scalable cloud-connected device platform. The Company believes that these investments will result in an increase in our subscription revenue base, which over time will result in revenue increasing faster than the increase in selling, general and administrative expenses and research and development costs, as we reach economies of scale.

Interest and Other Income (expense), Net

Interest and other income (expense), net was an expense of $0.3 million for the three months ended June 30, 2018 compared to income of $1.7 million for the same period in 2017. During the three months ended June 30, 2018, interest and other income amounts consisted primarily of interest income related to the Company's sales under hardware installment sale plans and investment and interest income totaling $0.9 million which was more than offset by losses on foreign currency transaction adjustments of $1.2 million. During the three months ended June 30, 2017, interest and other income included investment and interest income of $0.4 million and $1.3 million of gains on foreign currency transaction adjustments.

Provision for Income Taxes

The provision for income taxes was a benefit of $3.5 million for the three months ended June 30, 2018, which was an effective tax rate of (69.6)%. Our estimated full year effective income tax rate for 2018, before discrete period adjustments, was 22.8%, which is more than the federal statutory rate primarily due to state taxes and non-deductible expenses for items such as meals and entertainment, executive compensation limitation under IRC Section 162(m), lobbying fees, an income inclusion from GILTI, offset by a reduction for foreign-derived intangible income ("FDII"). This was partially offset by R&D tax credit deductions. The effective tax rate was favorably impacted by a $4.6 million discrete tax benefit primarily associated with windfalls related to stock-based compensation for RSUs that vested or stock options that were exercised during the three months ended June 30, 2018. Of this amount $3.4 million related to stock options exercised by the Company's CEO in connection with the Company's follow-on offering.

Net Income

Our income increased by $6.2 million to $8.5 million for the three months ended June 30, 2018 compared to $2.3 million for the same period in 2017. Net income per basic and diluted share was $0.15 for the three months ended June 30, 2018 compared to $0.04 per basic and diluted share for the same period in 2017.

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Three Months Ended June 30, 2018 Compared to the Three Months Ended March 31, 2018

Net Sales

Net sales by product line were as follows (dollars in thousands):

	Three Months Ended June 30, 2018				Three Months Ended March 31, 2018				Dollar Change			Percent Change
TASER Weapons segment:
TASER X26P	$	18,146	18.3	%	$	16,474	16.3	%	$	1,672		10.1	%
TASER X2	18,362		18.5		23,932		23.6		(5,570		)	(23.3	)
TASER Pulse and Bolt	1,101		1.1		1,346		1.3		(245		)	(18.2	)
Single cartridges	17,243		17.4		16,114		15.9		1,129			7.0
Extended warranties	3,738		3.8		3,706		3.7		32			0.9
Other	2,034		2.0		1,952		1.9		82			4.2
Total TASER Weapons segment	60,624		61.1		63,524		62.8		(2,900		)	(4.6	)
Software and Sensors segment:
Axon Body	4,780		4.8		5,558		5.5		(778		)	(14.0	)
Axon Flex	1,535		1.5		1,669		1.6		(134		)	(8.0	)
Axon Fleet	2,715		2.4		2,116		2.1		599			28.3
Axon Dock	2,119		2.1		3,035		3.0		(916		)	(30.2	)
Evidence.com and cloud services	20,357		20.5		20,241		20.0		116			0.6
TASER Cam	762		0.8		1,360		1.3		(598		)	(44.0	)
Extended warranties	2,870		2.9		2,490		2.5		380			15.3
Other	3,464		3.5		1,222		1.2		2,242			183.5
Total Software and Sensors segment	38,602		38.9		37,691		37.2		911			2.4
Total net sales	$	99,226	100.0	%	$	101,215	100.0	%	$	(1,989	)	(2.0	)%

Net sales within the TASER Weapons segment decreased during the three months ended June 30, 2018 at $60.6 million as compared to $63.5 million for the three months ended March 31, 2018. The decrease is primarily attributable to the timing of customer orders and deployments.

Within the Software and Sensors segment, net sales were $38.6 million for the three months ended June 30, 2018 as compared to $37.7 million for the three months ended March 31, 2018. The Company continued to add users to its network during the three months ended June 30, 2018 resulting in steady service revenues but offset by decreased hardware revenues.

Net unit sales for TASER Weapons handles and other products and Software and Sensors segment products were as follows:

	Three Months Ended June 30, 2018	Three Months Ended March 31, 2018	Unit Change		Percent Change
TASER X26P	18,664	15,720	2,944		18.7	%
TASER X2	15,537	20,501	(4,964	)	(24.2	)
TASER Pulse and Bolt	3,158	4,000	(842	)	(21.1	)
Cartridges	611,136	532,952	78,184		14.7
Axon Body	20,407	21,769	(1,362	)	(6.3	)
Axon Flex	3,281	3,693	(412	)	(11.2	)
Axon Fleet	2,079	1,857	222		12.0
Axon Dock	4,534	5,844	(1,310	)	(22.4	)
TASER Cam	1,491	3,528	(2,037	)	(57.7	)

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Six Months EndedJune 30, 2018 Compared to the Six Months EndedJune 30, 2017

The following table presents data from our statements of operations as well as the percentage relationship to total net sales of items included in our statements of operations (dollars in thousands):

	Six Months Ended June 30,
	2018					2017 (1)
Net sales from products	$	157,695		78.7	%	$	134,366	84.6	%
Net sales from services	42,746			21.3		24,519		15.4
Net sales	200,441			100.0		158,885		100.0
Cost of product sales	63,521			31.7		57,244		36.0
Cost of service sales	9,316			4.6		7,334		4.6
Cost of sales	72,837			36.3		64,578		40.6
Gross margin	127,604			63.7		94,307		59.4
Operating expenses:
Sales, general and administrative	75,102			37.5		62,681		39.5
Research and development	33,620			16.8		25,452		16.0
Total operating expenses	108,722			54.2		88,133		55.5
Income from operations	18,882			9.4		6,174		3.9
Interest and other income	968			0.5		1,890		1.2
Income before provision for income taxes	19,850			9.9		8,064		5.1
Provision for (benefit from) income taxes	(1,561		)	(0.8	)	1,208		0.8
Net income	$	21,411		10.7	%	$	6,856	4.3	%

⁽¹⁾ Amounts for the six months ended June 30, 2017 have not been adjusted under the modified retrospective method of adoption of Topic 606, and are presented consistent with the prior period amounts reported under ASC 605.

The following table presents the Company's revenues disaggregated by geography (in thousands):

	Six Months Ended June 30,
	2018				2017 (1)
United States	$	156,681	78	%	$	130,952	82	%
Other countries	43,760		22		27,933		18
Total	$	200,441	100	%	$	158,885	100	%

⁽¹⁾ Amounts for the six months ended June 30, 2017 have not been adjusted under the modified retrospective method of adoption of Topic 606, and are presented consistent with the prior period amounts reported under ASC 605.

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Net Sales

Net sales by product line were as follows (dollars in thousands):

	Six Months Ended June 30,								Dollar Change			Percent Change
	2018				2017 (1)
TASER Weapons segment:
TASER X26P	$	34,620	17.3	%	$	31,903	20.1	%	$	2,717		8.5	%
TASER X2	42,294		21.1		35,038		22.1		7,256			20.7
TASER Pulse and Bolt	2,447		1.2		1,823		1.1		624			34.2
Single cartridges	33,357		16.6		31,531		19.8		1,826			5.8
Extended warranties	7,444		3.7		5,834		3.7		1,610			27.6
Other	3,986		2.0		4,558		2.9		(572		)	(12.5	)
Total TASER Weapons segment	124,148		61.9		110,687		69.7		13,461			12.2
Software and Sensors segment:
Axon Body	10,338		5.2		7,198		4.5		3,140			43.6
Axon Flex	3,204		1.6		5,326		3.4		(2,122		)	(39.8	)
Axon Fleet	4,831		2.4		—		—		4,831			*
Axon Dock	5,154		2.6		4,770		3.0		384			8.1
Evidence.com and cloud services	40,598		20.3		24,498		15.4		16,100			65.7
TASER Cam	2,122		1.1		1,485		0.9		637			42.9
Extended warranties	5,360		2.7		3,037		1.9		2,323			76.5
Other	4,686		2.3		1,884		1.2		2,802			148.7
Total Software and Sensors segment	76,293		38.1		48,198		30.3		28,095			58.3
Total net sales	$	200,441	100.0	%	$	158,885	100.0	%	$	41,556		26.2

* Not meaningful

⁽¹⁾ Amounts for the six months ended June 30, 2017 have not been adjusted under the modified retrospective method of adoption of Topic 606, and are presented consistent with the prior period amounts reported under ASC 605.

Net unit sales for TASER Weapons handles and other products and Software and Sensors segment products were as follows:

	Six Months Ended June 30,		Unit Change		Percent Change
	2018	2017
TASER X26P	34,384	33,559	825		2.5	%
TASER X2	36,038	32,527	3,511		10.8
TASER Pulse and Bolt	7,158	5,919	1,239		20.9
Cartridges	1,144,088	1,175,268	(31,180	)	(2.7	)
Axon Body	42,176	47,195	(5,019	)	(10.6	)
Axon Flex	6,974	12,474	(5,500	)	(44.1	)
Axon Fleet	3,936	—	3,936		*
Axon Dock	10,378	13,144	(2,766	)	(21.0	)
TASER Cam	5,019	2,675	2,344		87.6

* Not meaningful

Net sales were $200.4 million and $158.9 million for the six months ended June 30, 2018 and 2017, respectively, an increase of $41.6 million or 26.2%. International revenues were $43.8 million and $27.9 million for the six months ended June 30, 2018 and 2017, respectively, an increase of $15.8 million or 56.7%.

Net sales for the TASER Weapons segment were $124.1 million and $110.7 million for the six months ended June 30, 2018 and 2017, respectively, an increase of $13.5 million or 12.2%. The Company increased sales of its TASER X26P and X2 Smart Weapons by $10.0 million to $76.9 million during the six months ended June 30, 2018 as compared to $66.9 million during the

38

same period in 2017, which was primarily attributable to increased sales under the Officer Safety Plan and TASER 60 payment programs.

Net sales for the Software and Sensors segment were $76.3 million and $48.2 million for the six months ended June 30, 2018 and 2017, respectively, an increase of $28.1 million, or 58.3%. The overall increase in the Software and Sensors segment was driven by continued adoption of on-officer cameras and related technologies, including the Company's Evidence.com digital evidence management software suite. The Company recorded net sales of $4.8 million related to Axon Fleet in the six months ended June 30, 2018, with no amounts recorded during the same period in 2017. Evidence.com revenues for the six months ended June 30, 2018 increased $16.1 million to $40.6 million as compared to the same period in 2017. This increase was primarily driven by the continued increase in active users on the Company's Evidence.com platform.

Cost of Product and Service Sales

Cost of product and service sales was $72.8 million and $64.6 million for the six months ended June 30, 2018 and 2017, respectively, an increase of $8.3 million, or 12.8%. As a percentage of net sales, cost of product and service sales decreased to 36.3% for the six months ended June 30, 2018 compared to 40.6% during the same period in 2017. The Company noted no significant changes in variable manufacturing costs during the six months ended June 30, 2018 as compared to the same period in 2017.

Within the TASER Weapons segment, cost of product sales increased to $38.2 million for the six months ended June 30, 2018 from $34.1 million for the same period in 2017 as a result of higher sales volumes, and was consistent as a percentage of sales at 30.8%.

Within the Software and Sensors segment, cost of product and service sales increased to $34.6 million for the six months ended June 30, 2018 from $30.5 million for the same period in 2017 as a result of higher sales volumes, and decreased as a percentage of sales to 45.4% for the six months ended June 30, 2018 from 63.2% for the same period in 2017.

Gross Margin

Gross margin increased $33.3 million to $127.6 million for the six months ended June 30, 2018 compared to $94.3 million for the same period in 2017. As a percentage of net sales, gross margin increased to 63.7% for the six months ended June 30, 2018 compared to 59.4% for the same period in 2017, which was primarily attributable to increased leveraging of fixed costs related to cloud storage.

As a percentage of net sales, gross margin for the TASER Weapons segment was 69.2% for each of the six months ended June 30, 2018 and 2017. As a percentage of net sales, gross margin for the Software and Sensors segment was 54.6% and 36.8% for the six months ended June 30, 2018 and 2017, respectively. Within the Software and Sensors segment, hardware gross margin was 24.6% for the six months ended June 30, 2018 and 2.3% for the same period in 2017, while the service margins were 78.2% and 70.1% during those same periods, respectively. The increase in hardware gross margins during the six months ended June 30, 2018 was primarily attributable to accounting changes required under the new revenue accounting standard. Previously, the level of discounting in the Company's contracts resulted in a portion of the contractual consideration allocated to the delivered hardware to be recognized as revenue ratably over the Evidence.com subscription term, while the full cost of the product was recognized when the hardware was delivered to the customer resulting in lower gross margins initially. Under the new revenue accounting standard, generally the full amount of revenue related to the delivered hardware is recognized in the period in which it is delivered resulting in better matching of the revenues and related costs. The increase in service margins during the six months ended June 30, 2018 as compared to the same period in 2017 was attributable to the reduction of non-recurring expenses related to the Company's data migration to its new cloud-storage provider that was completed in 2018, as well as increased leveraging of fixed costs related to cloud-storage.

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Sales, General and Administrative Expenses

Sales, general and administrative (“SG&A”) expenses were comprised as follows (dollars in thousands):

	Six Months Ended June 30,						Dollar Change		Percent Change
	2018			2017 (1)
Total sales, general and administrative expenses	$	75,102		$	62,681		$	12,421	19.8
Sales, general, and administrative as a percentage of net sales	37.5		%	39.5		%

⁽¹⁾ Amounts related to commissions expense for the six months ended June 30, 2017 have not been adjusted under the modified retrospective method of adoption of Topic 606, and are presented consistent with the prior period amounts reported under ASC 605.

Within the TASER Weapons segment, SG&A expense increased $8.5 million, or 24.4%, to $43.2 million during the six months ended June 30, 2018 as compared to $34.7 million for the six months ended June 30, 2017. Of the increase, $4.1 million related to higher salaries, benefits, bonus and stock-based compensation related primarily to sales and marketing, professional staff and general support staff, as well as increased professional and consulting of $3.0 million primarily related to increased legal fees.

Within the Software and Sensors segment, SG&A expense increased $3.9 million, or 14.1%, to $31.9 million during the six months ended June 30, 2018 as compared to $28.0 million for the six months ended June 30, 2017. The increase was primarily attributable to increased costs related to sales and marketing.

Research and Development Expenses

R&D expenses were comprised as follows (dollars in thousands):

	Six Months Ended June 30,						Dollar Change		Percent Change
	2018			2017
Total research and development expenses	$	33,620		$	25,452		$	8,168	32.1
Research and development as a percentage of net sales	16.8		%	16.0		%

The Company's Software and Sensors segment was responsible for 64.4% of the overall increase in R&D expense. Within the TASER Weapons segment, R&D expense increased $2.9 million, $2.5 million related to increased salaries, benefits and bonus as the Company continues to invest in personnel allocated to the development of new CEW related technologies. Of the $5.3 million increase in R&D expense for the Software and Sensors segment, $6.7 million related to salaries and benefits, inclusive of stock-based compensation, which was partially offset by $1.5 million of lower expenses related to external professional and consulting fees. The Company expects R&D expense to continue to increase in absolute dollars as it invests in the deployment of new CEW technologies and focuses on growing the Software and Sensors segment as it adds headcount and additional resources to develop new products and services to further advance its scalable cloud-connected device platform. The Company believes that these investments will result in an increase in our subscription revenue base, which over time will result in revenue increasing faster than the increase in selling, general and administrative expenses and research and development costs, as we reach economies of scale.

Interest and Other Income

Interest and other income was $1.0 million for the six months ended June 30, 2018 compared to $1.9 million for the same period in 2017. During the six months ended June 30, 2018, interest and other income consisted primarily of interest income related to the Company's sales under hardware installment sale plans and investment and interest income totaling $1.3 million which was partially offset by losses on foreign currency transaction adjustments of $0.3 million. During the six months ended June 30, 2017, interest and other income was primarily comprised of $1.2 million of foreign currency transaction gains and investment and interest income of $0.8 million.

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Provision for Income Taxes

The provision for income taxes was a benefit of $1.6 million for the six months ended June 30, 2018, which was an effective tax rate of (7.9)%. Our estimated full year effective income tax rate for 2018, before discrete period adjustments, was 22.8%, which is more than the federal statutory rate primarily due to state taxes and non-deductible expenses for items such as meals and entertainment, executive compensation limitation under IRC Section 162(m), lobbying fees, an income inclusion from GILTI, offset by a reduction for foreign-derived intangible income ("FDII"). This was partially offset by R&D tax credit deductions. The effective tax rate was favorably impacted by a $6.1 million discrete tax benefit primarily associated with windfalls related to stock-based compensation for RSUs that vested or stock options that were exercised during the six months ended June 30, 2018. Of this amount $3.4 million related to stock options exercised by the Company's CEO in connection with the Company's follow-on offering.

Net Income

Our income increased by $14.6 million to $21.4 million for the six months ended June 30, 2018 compared to $6.9 million for the same period in 2017. Net income per basic and diluted share was $0.39 and $0.38 for the six months ended June 30, 2018, respectively, compared to $0.13 per basic and diluted share for the same period in 2017.

Liquidity and Capital Resources

Summary

As of June 30, 2018, we had $310.0 million of cash, cash equivalents and restricted cash, an increase of $231.5 million as compared to December 31, 2017.

Cash Flows

The following table summarizes our cash flows from operating, investing and financing activities (in thousands):

	Six Months Ended June 30,
	2018			2017
Net cash provided by (used in) operating activities	$	16,106		$	(12,458	)
Net cash provided by (used in) investing activities	(7,226		)	2,037
Net cash provided by (used in) financing activities	223,197			(1,331		)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(538		)	(857		)
Net increase (decrease) in cash, cash equivalents and restricted cash	$	231,539		$	(12,609	)

Operating activities

Net cash provided by operating activities in the first six months of 2018 of $16.1 million reflects $21.4 million in net income impacted by the net increase of non-cash income statement items totaling $14.6 million and decrease of $19.9 million for the net change in operating assets and liabilities. Included in the non-cash items were $5.2 million in depreciation and amortization expense and $9.0 million in stock-based compensation expense. Increases to operating cash flows consisted primarily of increased deferred revenue of $10.5 million and decreased inventory of $4.5 million. The increase in deferred revenue was primarily driven by increased Software and Sensors services invoiced in advance. Cash used in operations was also impacted by various other operating items, with the most significant component related to increased accounts and notes receivable and contract assets of $24.8 million primarily related to increased customer balances under the Company's Officer Safety Plan and TASER 60 purchase programs. Cash used in operations was also impacted by decreased accounts payable and accrued liabilities of $2.7 million and increased prepaid expenses and other assets of $7.4 million driven primarily by increased deferred commissions and higher prepaid software licenses, partially offset by decreased deferred cost of product sales and higher income tax receivables.

Net cash used in operating activities in the first six months of 2017 of $12.4 million consisted of $6.9 million in net income impacted by the net increase of non-cash income statement items totaling $10.1 million and decrease of $29.4 million for the net change in operating assets and liabilities. Included in the non-cash items were $3.4 million in depreciation and amortization expense, $7.4 million in stock-based compensation expense and $0.4 million of bond premium amortization. These non-cash impacts were partially offset by deferred income tax expense of $1.5 million. Increases to operating cash flows consisted of increased accounts payable, accrued and other liabilities of $7.5 million, which reduced the amount of cash used during the period,

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along with increased deferred revenue of $14.8 million. The increase in deferred revenue was primarily driven by continued sales growth of products and services within the Company's Software and Sensors segment that are typically invoiced in advance, and recognized over the duration of the contract period as hardware and services are delivered. Of the increase in deferred revenue, $7.5 million resulted from increased hardware deferred revenue along with increased deferred warranty revenue of $2.5 million, and increased services, including Evidence.com subscriptions, of $4.9 million. Cash used in operations was also impacted by various other operating items, with the most significant component related to increased inventory of $25.8 million in anticipation of the Company's national field trial offer for body cameras as well as increased sales throughout the remainder of 2017. Additionally, the Company had increased long-term accounts receivable of $15.9 million partially related to the Company's Officer Safety Plan and TASER 60 purchase programs and increased prepaid expenses and other assets of $10.1 million which was primarily driven by a $3.2 million increase in customer receivables related to value added taxes passed on to customers which was attributable to higher TASER weapons sales in the U.K., $1.0 million of increased prepaid commissions which are paid for when a contract is booked, and subsequently amortized over the contractual period, and $0.8 million of increased prepaid wages and benefits that will be recognized over the employees' explicit service period. Cash from operations was also affected by increases in accounts and notes receivable of $4.5 million driven by higher sales.

Investing activities

We used $7.2 million in investing activities during the first six months of 2018. Maturities and calls of investments, net of purchases, were $2.7 million. We invested $4.9 million in the purchase of property and equipment and intangible assets in addition to our $5.0 million investment related to the acquisition of VIEVU, LLC (Refer to Note 15 in the Notes to Unaudited Condensed Consolidated Financial Statements).

We generated $2.0 million from investing activities during the first six months of 2017. Maturities and calls of investments, net of purchases, were $14.4 million, which was partially offset by our investment of $5.9 million in the purchase of property and equipment and intangible assets and our $6.5 million investment related to the acquisition of Dextro, Inc.

Financing activities

Net cash generated by financing activities was $223.2 million during the first six months of 2018. In May 2018, we completed a public follow-on equity offering that generated net proceeds of $234.0 million which was partially offset by income and payroll taxes of $10.8 million paid by the Company on behalf of employees who net-settled stock awards during the period.

Net cash used in financing activities was $1.3 million during the first six months of 2017. During the first six months of 2017, the Company paid income and payroll taxes of $2.6 million on behalf of employees who net-settled stock awards during the period which was offset by proceeds from options exercised of $1.2 million.

Liquidity and Capital Resources

As of June 30, 2018, we had $307.5 million of cash and cash equivalents, of which $36.6 million was held in foreign locations. The majority of our cash and cash equivalents balance as of June 30, 2018 was comprised of the $234.0 million of net proceeds related to the follow-on offering we completed in May 2018. Our ongoing sources of cash are predominately from our sales of products and services to our customers. In addition, our $10.0 million revolving credit facility is available for additional working capital needs or investment opportunities. Under the terms of the line of credit, available borrowings are reduced by outstanding letters of credit. The line is secured by substantially all of the assets of the Company, and bears interest at varying rates, currently LIBOR plus 1.25% or Prime less 0.50%. As of June 30, 2018, we had letters of credit outstanding of $2.7 million, leaving the net amount available for borrowing of $7.3 million. The facility matures on December 31, 2018. There can be no assurance that we will continue to generate cash flows at or above current levels or that we will be able to maintain our ability to borrow under our revolving credit facility. At June 30, 2018 and December 31, 2017, there were no borrowings under the line.

Our agreement with the bank requires us to comply with a maximum funded debt to EBITDA ratio, as defined, of no greater than 2.00 to 1.00 based upon a trailing twelve-month period. At June 30, 2018, the Company’s funded debt to EBITDA ratio was 0.002 to 1.00.

TASER 60 installment purchase arrangements typically involve amounts invoiced in five equal installments at the beginning of each year of the five-year term. This is in contrast to a traditional CEW sale in which the entire amount being charged for the hardware is invoiced upon shipment. This impacts liquidity in a commensurate fashion, with the cash for the TASER 60 arrangements received in five annual installments rather than up front. It is our strategic intent to shift an increasing amount of our business to a subscription model, to better match the municipal budgeting process of our customers as well as to allow for multiple product offerings to be bundled into existing subscriptions. We carefully considered the cash flow impacts of this strategic shift and regularly revisit our cash flow forecast with the goal of maintaining a comfortable level of liquidity as we introduce new

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commercial offerings in which we incur upfront cash costs to produce and fulfill hardware sales ahead of the cash inflows from our customers. We anticipate, and have prepared for, the majority of our arrangements in both reportable segments to be offered in similar subscription-type offerings over the coming years.

We believe financing will be available, both through our existing credit line and possible additional financing. However, there is no assurance that such funding will be available on terms acceptable to us, or at all. We believe that our sources of funding will be sufficient to satisfy our currently anticipated cash requirements including capital expenditures, working capital requirements, potential acquisitions and other liquidity requirements through at least the next 12 months. The Company and its Board of Directors may consider repurchases of our common stock. Further repurchases of our common stock would take place on the open market, would be financed with available cash and are subject to authorization as well as market and business conditions.

Off-Balance Sheet Arrangements

The discussion of off-balance sheet arrangements in Note 11 to the unaudited condensed consolidated financial statements included in PART I, ITEM I of this Form 10-Q is incorporated by reference herein. 

Critical Accounting Estimates

We have identified the following accounting estimates as critical to our business operations and the understanding of our results of operations. The preparation of this Quarterly Report on Form 10-Q requires us to make estimates and assumptions that affect the reported amount of assets and liabilities, the disclosure of contingent assets and liabilities at the date of our unaudited condensed consolidated financial statements, and the reported amounts of revenue and expenses during the reporting period. While we do not believe that a change in these estimates is reasonably likely, there can be no assurance that our actual results will not differ from these estimates. The effect of these estimates on our financial condition and results of operations are discussed below.

Product Warranties

The Company warranties its CEWs, Axon cameras and certain related accessories from manufacturing defects on a limited basis for a period of one year after purchase and, thereafter, will replace any defective unit for a fee. Estimated costs for the standard warranty are charged to cost of products sold when revenue is recorded for the related product. Future warranty costs are estimated based on historical data related to warranty claims on a quarterly basis and this rate is applied to current product sales. Historically, reserve amounts have been increased if management becomes aware of a component failure or other issue that could result in larger than anticipated warranty claims from customers. The warranty reserve is reviewed quarterly to verify that it sufficiently reflects the remaining warranty obligations based on the anticipated expenditures over the balance of the warranty obligation period, and adjustments are made when actual warranty claim experience differs from estimates. As of June 30, 2018 and December 31, 2017, our reserve for warranty returns was $0.5 million and $0.6 million, respectively. Warranty expense for the six months ended June 30, 2018 was negligible, and there was a recovery of $0.1 million during the six months ended June 30, 2017. The Company experienced lower warranty claims than initially expected and, as such, adjusted the warranty reserve to better reflect actual warranty claims. As of June 30, 2018, the Company's reserve also included initial reserves related to Signal Sidearm.

Revenue related to separately-priced extended warranties is initially recorded as deferred revenue at its contractual amount and subsequently recognized as net sales ratably over the warranty service period. Costs related to extended warranties are charged to cost of product and service sales when incurred.

Inventory

Inventories are stated at the lower of cost and net realizable value. Cost is determined using the weighted average cost of raw materials, which approximates the first-in, first-out (“FIFO”) method and includes allocations of manufacturing labor and overhead. Provisions are made to reduce potentially excess, obsolete or slow-moving inventories, as well as trial and evaluation inventories to their net realizable value. These provisions are based on management’s best estimate after considering historical demand, projected future demand, inventory purchase commitments, industry and market trends and conditions among other factors. Management evaluates inventory costs for abnormal costs due to excess production capacity and treats such costs as period costs.

During the six months ended June 30, 2018 and 2017, the Company recorded provisions for excess and obsolete inventory of $2.6 million and $1.0 million, respectively. During the six months ended June 30, 2018, the Company continued phasing out previous generations of its body-worn and in-car cameras, which made up a portion of the amounts recorded as provisions to excess and obsolete inventory. Included within the $2.6 million expense, the Company recorded $0.6 million related to purchase commitments assumed in the VIEVU business combination that exceeded estimated future demand. The remaining change for the six months ended June 30, 2018 was driven by analyses looking at projected sales data for existing products and making

43

corresponding adjustments to state inventories at their lower of cost and net realizable value. Refer to Note 4 in the Notes to Unaudited Condensed Consolidated Financial Statements.

Revenue Recognition, Contract Assets and Liabilities and Accounts and Notes Receivable

The Company derives revenue from two primary sources: (1) the sale of physical products, including CEWs, Axon cameras, Axon Signal enabled devices, corresponding hardware extended warranties, and related accessories such as Axon docks, cartridges and batteries, among others, and (2) subscription to the Company's Evidence.com digital evidence management software as a service ("SaaS") (including secure cloud-based storage fees and other ancillary services), which includes varying levels of support. To a lesser extent, the Company also recognizes revenue from training and professional services and revenue related to other software and SaaS services. Refer to Note 2 in the Notes to Unaudited Condensed Consolidated Financial Statements.

Many of the Company's products and services are sold on a standalone basis. The Company also bundles its hardware products and services together and sells them to its customers in single transactions, where the customer can make payments over a multi-year period. For the three and six months ended June 30, 2018 and 2017, the composition of revenue recognized from contracts containing multiple performance obligations and those not containing multiple performance obligations was as follows (dollars in thousands):

	Three Months Ended June 30, 2018												Three Months Ended June 30, 2017 (1)
	TASER Weapons				Software and Sensors				Total				TASER Weapons				Software and Sensors				Total
Contracts with Multiple Performance Obligations	$	15,007	24.8	%	$	36,943	95.7	%	$	51,950	52.4	%	$	9,784	18.5	%	$	25,063	94.1	%	$	34,847	43.8	%
Contracts without Multiple Performance Obligations	45,617		75.2		1,659		4.3		47,276		47.6		43,232		81.5		1,564		5.9		44,796		56.2
Total	$	60,624	100.0	%	$	38,602	100.0	%	$	99,226	100.0	%	$	53,016	100.0	%	$	26,627	100.0	%	$	79,643	100.0	%

	Six Months Ended June 30, 2018												Six Months Ended June 30, 2017 (1)
	TASER Weapons				Software and Sensors				Total				TASER Weapons				Software and Sensors				Total
Contracts with Multiple Performance Obligations	$	34,988	28.2	%	$	73,588	96.5	%	$	108,576	54.2	%	$	23,723	21.4	%	$	44,577	92.5	%	$	68,300	43.0	%
Contracts without Multiple Performance Obligations	89,160		71.8		2,705		3.5		91,865		45.8		86,964		78.6		3,621		7.5		90,585		57.0
Total	$	124,148	100.0	%	$	76,293	100.0	%	$	200,441	100.0	%	$	110,687	100.0	%	$	48,198	100.0	%	$	158,885	100.0	%

⁽¹⁾ Amounts for the three and six months ended June 30, 2017 have not been adjusted under the modified retrospective method of adoption of Topic 606, and are presented consistent with the prior period amounts reported under ASC 605.

Valuation of Goodwill, Intangibles and Long-lived Assets

The Company does not amortize goodwill and intangible assets with indefinite useful lives. Such assets are required to be tested for impairment at least annually, or whenever events or changes in circumstances indicate that the assets may be impaired. The Company performs its annual impairment assessment in the fourth quarter of each year. Finite-lived intangible assets and other long-lived assets are amortized over their estimated useful lives. Management evaluates whether events and circumstances have occurred that indicate the remaining estimated useful life of long-lived assets and intangible assets may warrant revision or that the remaining balance of these assets, including intangible assets with indefinite lives, may not be recoverable.

Circumstances that might indicate long-lived assets might not be recoverable could include, but are not limited to, a change in the product mix, a change in the way products are created, produced or delivered, or a significant change in the way the Company's products are branded and marketed. When performing a review for recoverability, management estimates the future undiscounted cash flows expected to result from the use of the assets and their eventual disposition. The amount of the impairment loss, if impairment exists, is calculated based on the excess of the carrying amounts of the assets over their estimated fair value computed using discounted cash flows.

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Income Taxes

We recognize federal, state and foreign current tax liabilities or assets based on our estimate of taxes payable or refundable in the current fiscal year by tax jurisdiction. We also recognize federal, state and foreign deferred tax assets or liabilities, as appropriate, for our estimate of future tax effects attributable to temporary differences and carry forwards.

We recognize the tax benefit from an uncertain tax position only if it is more likely than not that the tax position will be sustained based on the technical merits of the position. The tax benefits recognized in the consolidated financial statements from such positions are measured based on the largest benefit that has a greater than fifty percent likelihood of being realized upon ultimate resolution. Management must also assess whether uncertain tax positions as filed could result in the recognition of a liability for possible interest and penalties if any. The Company has claimed R&D tax credits of approximately$17.0 million for federal, Arizona and California income tax purposes related to tax years 2003 to 2018. Management determined that it was more likely than not that the full benefit of the R&D tax credit would not be sustained on examination and accordingly, has established a liability for unrecognized tax benefits of $3.8 million as of June 30, 2018. In addition, we established a $0.1 million liability related to uncertain tax positions for certain state income tax liabilities, for a total unrecognized tax benefit at June 30, 2018 of $3.9 million. Approximately $2.1 million of the unrecognized tax benefit associated with R&D credits has been netted against the R&D credit deferred tax asset. Our estimates are based on the information available to us at the time we prepare the income tax provision. Our income tax returns are subject to audit by federal, state, and local governments, generally years after the returns are filed. These returns could be subject to material adjustments or differing interpretations of the tax laws.

Our calculation of current and deferred tax assets and liabilities is based on certain estimates and judgments and involves dealing with uncertainties in the application of complex tax laws. Our estimates of current and deferred tax assets and liabilities may change based, in part, on added certainty or finality to an anticipated outcome, changes in accounting or tax laws in the U.S. and overseas, or changes in other facts or circumstances. In addition, we recognize liabilities for potential U.S. tax contingencies based on our estimate of whether, and the extent to which, additional taxes may be due. If we determine that payment of these amounts is unnecessary, or if the recorded tax liability is less than our current assessment, we may be required to recognize an income tax benefit, or additional income tax expense, respectively, in our consolidated financial statements.

In preparing our consolidated financial statements, management assesses the likelihood that our deferred tax assets will be realized from future taxable income. In evaluating our ability to recover our deferred income tax assets, management considers all available positive and negative evidence, including operating results, ongoing tax planning and forecasts of future taxable income on a jurisdiction by jurisdiction basis. A valuation allowance is established if we determine that it is more likely than not that some portion or all of the net deferred tax assets will not be realized.

Although management believes that its tax estimates are reasonable, the ultimate tax determination involves significant judgments that could become subject to audit by tax authorities in the ordinary course of business. As of June 30, 2018, the Company would need to generate approximately $46.7 million of pre-tax book income in the U.S. in order to realize the net deferred tax assets for which a benefit has been recorded. This estimate considers the reversal of $17.6 million of taxable temporary differences, which produce $4.3 million of deferred tax liabilities. The Company has $4.5 million of state net operating losses (“NOLs”) which expire at various dates between 2030 and 2036. The Company also has federal NOLs of $1.5 million which expire in 2035 through 2036, and are subject to limitation under IRC Section 382. The Company has $7.4 million of Arizona R&D credits carrying forward, which expire at various dates between 2018 and 2032, and $0.1 million of federal R&D credits carrying forward which expire in 2034 through 2037. In Australia, the U.K., Canada, and Germany, the Company has $2.6 million, $7.6 million, $1.7 million, and $0.4 million of NOLs, respectively, which expire at various dates or may be carried forward indefinitely.

We anticipate the Company’s future income to continue to trend upward from our 2017 results, with sufficient pre-tax book income to realize a large portion of our deferred tax assets. As such, we have not recorded a valuation allowance on our U.S. deferred tax assets as of June 30, 2018, with the exception of a reserve of $2.4 million that has been recorded due to specific income projections in years in which certain tax assets are set to expire. As of June 30, 2018, the Company has cumulative losses in Australia, the U.K. and Canada, and a history of losses Germany, which limits the ability to consider other subjective evidence, such as projections for future growth. On the basis of this evaluation, a full valuation allowance has been recorded for these jurisdictions. The amount of the deferred tax asset considered realizable, however, could be adjusted if objective negative evidence in the form of cumulative losses is no longer present and additional weight is given to subjective evidence such as projections for growth.

We consider the earnings of certain non-U.S. subsidiaries to be indefinitely reinvested outside of the United States on the basis of estimates that future domestic cash generation will be sufficient to meet future domestic cash needs and our specific plans for reinvestment of those subsidiary earnings. The determination of the unrecognized deferred tax liability on those undistributed foreign earnings is not practicable due to our legal entity structure and the complexity of U.S. and local country tax laws. If we decide to repatriate the undistributed foreign earnings, we will need to recognize the income tax effects in the period we change our assertion on indefinite reinvestment. Refer to Note 8 in the Notes to Unaudited Condensed Consolidated Financial Statements.

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Stock-Based Compensation

Stock-based compensation primarily consists of service-based RSUs. RSUs are classified as equity and measured at the fair market value of the underlying stock at the grant date. The Company recognizes RSU expense using the straight-line attribution method over the requisite service period. The Company also issues performance-based RSUs, the vesting of which is contingent upon the achievement of certain performance criteria related to the operating performance of the Company, as well as successful and timely development and market acceptance of future product introductions. For performance-based RSUs containing only performance conditions, compensation cost is recognized using the accelerated attribution model over the explicit or implicit service period. For awards containing multiple service, performance or market conditions, and all conditions must be satisfied prior to vesting, compensation expense is recognized over the longest explicit, implicit or derived service period, based on management’s estimate of the probability of the performance criteria being satisfied, adjusted at each balance sheet date. For both service-based and performance-based RSUs, the Company accounts for forfeitures as they occur as a reduction to stock-based compensation expense and additional paid-in-capital.

For performance-based options, stock-based compensation expense is recognized over the expected performance achievement period of individual performance goals when the achievement of each individual performance goal becomes probable. For performance-based awards with a vesting schedule based entirely on the attainment of both performance and market conditions, stock-based compensation expense is recognized for each pair of performance and market conditions over the longer of the expected achievement period of the performance and market conditions, beginning at the point in time that the relevant performance condition is considered probable of achievement. The fair value of such awards is estimated on the grant date using Monte Carlo simulations. Refer to Note 9 in the Notes to Unaudited Condensed Consolidated Financial Statements.

We have granted a total of 8.5 million performance-based awards (options and restricted stock units) of which 6.8 million are outstanding as of June 30, 2018.

Contingencies and Accrued Litigation Expense

We are subject to the possibility of various loss contingencies arising in the ordinary course of business, including product-related litigation. We consider the likelihood of loss or impairment of an asset or the incurrence of a liability, as well as our ability to reasonably estimate the amount of loss in determining loss contingencies. An estimated loss contingency is accrued when it is probable that an asset has been impaired or a liability has been incurred and the amount of loss can be reasonably estimated. We regularly evaluate current information available to us to determine whether such accruals should be adjusted and whether new accruals are required. Refer to Note 11 of our consolidated financial statements for further discussion.

Except as noted below, as of June 30, 2018, there were no material changes outside of the ordinary course of business to the contractual obligations table, including the notes thereto, contained in our Form 10-K Report for the fiscal year ended December 31, 2017.

In connection with the Company's acquisition of VIEVU, we entered into a long-term Product Development and Supplier Agreement (the “Supply Agreement”) with Safariland, pursuant to which Safariland will be the Company’s preferred provider of holsters for its CEW products. The Supply Agreement provides for a minimum number of units to be purchased by the Company at pre-determined prices over a ten-year period. The total undiscounted value of minimum purchases under the Supply Agreement is approximately $22.0 million.

Item 3. Quantitative and Qualitative Disclosures About Market Risk

Interest Rate Risk

We typically invest in a limited number of financial instruments, consisting principally of investments in money market accounts, certificates of deposit, and corporate and municipal bonds with a typical long-term debt rating of “A” or better by any nationally recognized statistical rating organization, denominated in U.S. dollars. All of our cash equivalents and investments are treated as “held-to-maturity.” Investments in fixed-rate interest-earning instruments carry a degree of interest rate risk as their market value may be adversely impacted due to a rise in interest rates. As a result, we may suffer losses in principal if we sell securities that have declined in market value due to changes in interest rates. However, because we classify our debt securities as “held-to-maturity” based on our intent and ability to hold these instruments to maturity, no gains or losses are recognized due to changes in interest rates. These securities are reported at amortized cost. Based on investment positions as of June 30, 2018, a hypothetical 100 basis point increase in interest rates across all maturities would result in an insignificant incremental decline in the fair market value of the portfolio. Such losses would only be realized if the Company sold the investments prior to maturity.

Additionally, we have access to a $10.0 million line of credit borrowing facility which bears interest at varying rates, currently at LIBOR plus 1.25% or Prime less 0.50%. Under the terms of the line of credit, available borrowings are reduced by outstanding letters of credit, which totaled $2.7 million at June 30, 2018. At June 30, 2018, there was no amount outstanding under the line of credit and the available borrowing under the line of credit was $7.3 million. We have not borrowed any funds under the line of credit since its inception; however; should we need to do so in the future, such borrowings could be subject to adverse or favorable changes in the underlying interest rate.

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Exchange Rate Risk

Our results of operations and cash flows are subject to fluctuations due to changes in foreign currency exchange rates, in each case compared to the U.S. Dollar, related to transactions by our foreign subsidiaries. The majority of our sales to international customers are transacted in U.S. dollars and, therefore, are not subject to exchange rate fluctuations. However, the cost of our products to our customers increases when the U.S. dollar strengthens against their local currency, and the Company may have more sales and expenses denominated in foreign currencies in future years which could increase its foreign exchange rate risk.

To date, we have not engaged in any currency hedging activities. However, the Company may enter into foreign currency forward and option contracts with financial institutions to protect against foreign exchange risks associated with certain existing or future assets and liabilities, certain firmly committed transactions, forecasted future cash flows and net investments in foreign subsidiaries. The Company may choose not to hedge certain foreign exchange exposures for a variety of reasons, including but not limited to the prohibitive economic cost of hedging particular exposures. As such, fluctuations in currency exchange rates could harm our business in the future.

Item 4. Controls and Procedures

Evaluation of Disclosure Controls and Procedures

Our Chief Executive Officer and Chief Financial Officer are responsible for the evaluation of the effectiveness of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act) as of the end of the period covered by this Quarterly Report on Form 10-Q. Our disclosure controls and procedures are designed to ensure that information we are required to disclose in reports that we file or submit under the Exchange Act is (i) recorded, processed, summarized and reported within the time periods specified in the Securities and Exchange Commission’s rules and forms and (ii) accumulated and communicated to our management, including our Chief Executive Officer and Chief Financial Officer, as appropriate to allow timely decisions regarding required disclosure. Based on that evaluation, our Chief Executive Officer and Chief Financial Officer have concluded that because a material weakness exists in our internal control over financial reporting, as further described below, our disclosure controls and procedures were not effective as of June 30, 2018 at a level that provides reasonable assurance as of the last day of the period covered by this report.

During the fourth quarter of 2017, we identified a material weakness related to account reconciliations and monitoring over our U.K. subsidiary, Axon Public Safety U.K. Ltd. ("APS U.K."), which resulted from a breakdown in the operation of identified preventative and detective controls which led to the Company not initially recording some transactions correctly during 2016 and the interim periods in 2017.

To remediate the material weakness described above and related to APS U.K., we designed a specific plan to design new controls, and enhanced the design of existing controls and procedures. Specifically:

• for the 2017 year-end close and first quarter 2018 close of our accounting records and during the second quarter of 2018, we sent accounting personnel from our headquarters in Arizona to the U.K. to perform additional review procedures of the account reconciliations for APS U.K., and our corporate accounting team performed additional reviews of APS U.K. activity;

• we plan for our corporate accounting team to continue performing these additional review procedures on an ongoing basis; and

• we added internal reporting procedures, including those designed to add depth to our detailed review processes of inventory, sales transactions and related accounting for deferred revenue and cost of goods sold and services delivered for APS U.K.; and

• on June 1, 2018, we completed the migration of APS U.K. onto the same standard systems, processes and controls as our other locations, which subjects APS U.K. activity to those procedures by the same personnel that perform the accounting activities for our other locations.

The material weakness will not be considered remediated until the applicable remedial controls operate for a sufficient period of time and management has concluded, through testing, that these controls are operating effectively. As remediation testing has not yet been completed, our Chief Executive Officer and Chief Financial Officer have concluded that our disclosure controls and procedures were not effective as of June 30, 2018 at a level that provides reasonable assurance as of the last day of the period covered by this report.

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Change in Internal Control over Financial Reporting

Except as noted above, there were no other changes in our internal control over financial reporting during the fiscal quarter ended June 30, 2018, that have materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

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PART II - OTHER INFORMATION

Item 1. Legal Proceedings

The discussion of legal proceedings in Note 11 to the unaudited condensed consolidated financial statements included in PART I, ITEM 1 of this Form 10-Q is incorporated by reference herein.

Item 1A. Risk Factors

Our operations and financial results are subject to various risks and uncertainties, including those described in Part I, Item 1A, "Risk Factors" in our Annual Report on Form 10-K for the year ended December 31, 2017, which could adversely affect our business, financial condition, results of operations, cash flows, and the trading price of our common stock. There have been no material changes to our risk factors since our Annual Report on Form 10-K for the year ended December 31, 2017.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

None.

Item 3. Defaults Upon Senior Securities

None.

Item 4. Mine Safety Disclosures

None.

Item 5. Other Information

None.

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Item 6. Exhibits

10.1+	CEO Performance Award (incorporated by reference to Annex A of the Company’s definitive proxy statement on Schedule 14A filed on April 13, 2018)
10.2+	Axon Enterprise, Inc. 2018 Stock Incentive Plan (incorporated by reference to Annex B of the Company’s definitive proxy statement on Schedule 14A filed on April 13, 2018)
31.1*	Principal Executive Officer Certification pursuant to Rule 13a-14(a) or Rule 15d-14(a)
31.2*	Principal Financial Officer Certification pursuant to Rule 13a-14(a) or Rule 15d-14(a)
32**	Principal Executive Officer and Principal Financial Officer Certification pursuant to 18 U.S.C. Section 1350 as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002
101.INS*	XBRL Instance Document
101.SCH*	XBRL Taxonomy Extension Schema Document
101.CAL*	XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF*	XBRL Taxonomy Extension Definition Linkbase Document
101.LAB*	XBRL Taxonomy Extension Label Linkbase Document
101.PRE*	XBRL Taxonomy Extension Presentation Linkbase Document

*    Filed herewith

**    Furnished herewith

+    Management contract or compensatory plan or arrangement

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SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

AXON ENTERPRISE, INC.
Date:	August 9, 2018
		By:	/s/ PATRICK W. SMITH
			Chief Executive Officer
			(Principal Executive Officer)
Date:	August 9, 2018	By:	/s/ JAWAD A. AHSAN
			Chief Financial Officer
			(Principal Financial and
			Accounting Officer)

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EX-31.1

EXHIBIT 31.1

CERTIFICATION PURSUANT TO

RULE 13a-14(a) or RULE 15d-14(a)

SECURITIES EXCHANGE ACT OF 1934

I, Patrick W. Smith, certify that:

1.	I have reviewed this Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2018 of Axon Enterprise, Inc.;
2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
3.	Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;
4.	The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:
	(a)	Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
	(b)	Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
	(c)	Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and
	(d)	Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and
5.	The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):
	(a)	All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and
	(b)	Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	August 9, 2018	By:	/s/ Patrick W. Smith
			Patrick W. Smith
			Chief Executive Officer

EX-31.2

EXHIBIT 31.2

CERTIFICATION PURSUANT TO

RULE 13a-14(a) or RULE 15d-14(a)

SECURITIES EXCHANGE ACT OF 1934

I, Jawad A. Ahsan, certify that:

1.	I have reviewed this Quarterly Report on Form 10-Q for the quarterly period ended June 30, 2018 of Axon Enterprise, Inc.;
2.	Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;
3.	Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;
4.	The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:
	(a)	Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;
	(b)	Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;
	(c)	Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and
	(d)	Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s most recent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant’s internal control over financial reporting; and
5.	The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):
	(a)	All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; and
	(b)	Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internal control over financial reporting.

Date:	August 9, 2018	By:	/s/ Jawad A. Ahsan
			Jawad A. Ahsan
			Chief Financial Officer

EX-32

EXHIBIT 32

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report on Form 10-Q of Axon Enterprise, Inc. (the “Company”) for the quarterly period ended June 30, 2018 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Patrick W. Smith, Chief Executive Officer of the Company, certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Patrick W. Smith

Patrick W. Smith

Chief Executive Officer

August 9, 2018

In connection with the Quarterly Report on Form 10-Q of Axon Enterprise, Inc. (the “Company”) for the quarterly period ended June 30, 2018 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Jawad A. Ahsan, Chief Financial Officer of the Company, certify pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Jawad A. Ahsan

Jawad A. Ahsan

Chief Financial Officer

August 9, 2018

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Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2018	Jul. 31, 2018
Document And Entity Information [Abstract]
Entity Registrant Name	AXON ENTERPRISE, INC.
Entity Central Index Key	0001069183
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Document Type	10-Q
Document Period End Date	Jun. 30, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q2
Amendment Flag	false
Entity Common Stock, Shares Outstanding		58,319,695

XML

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Current assets:
Cash and cash equivalents	$ 307,507	$ 75,105
Short-term investments	4,124	6,862
Accounts and notes receivable, net of allowance of $1,327 and $754 as of June 30, 2018 and December 31, 2017, respectively	94,296	56,064
Contract assets, net	10,468	0
Inventory	43,967	45,465
Prepaid expenses and other current assets	26,604	21,696
Total current assets	486,966	205,192
Property and equipment, net of accumulated depreciation of $37,142 and $36,477 as of June 30, 2018 and December 31, 2017, respectively	34,503	31,172
Deferred income tax assets, net	15,813	15,755
Intangible assets, net	20,442	18,823
Goodwill	24,684	14,927
Long-term notes receivable, net of current portion	37,158	36,877
Other assets	22,831	15,366
Total assets	642,397	338,112
Current liabilities:
Accounts payable	9,213	8,592
Accrued liabilities	29,995	23,502
Current portion of deferred revenue	76,583	70,401
Customer deposits	2,970	3,673
Current portion of business acquisition contingent consideration	1,946	1,693
Other current liabilities	191	89
Total current liabilities	120,898	107,950
Deferred revenue, net of current portion	61,456	54,881
Liability for unrecognized tax benefits	1,918	1,706
Long-term deferred compensation	3,560	3,859
Business acquisition contingent consideration, net of current portion	203	1,048
Other long-term liabilities	5,520	1,224
Total liabilities	193,555	170,668
Commitments and contingencies (Note 11)
Stockholders’ equity:
Preferred stock, $0.00001 par value; 25,000,000 shares authorized; no shares issued and outstanding as of June 30, 2018 and December 31, 2017	0	0
Common stock, $0.00001 par value; 200,000,000 shares authorized; 58,289,613 and 52,969,869 shares issued and outstanding as of June 30, 2018 and December 31, 2017, respectively	1	1
Additional paid-in capital	442,717	201,672
Treasury stock at cost, 20,220,227 shares as of June 30, 2018 and December 31, 2017	(155,947)	(155,947)
Retained earnings	163,590	123,185
Accumulated other comprehensive loss	(1,519)	(1,467)
Total stockholders’ equity	448,842	167,444
Total liabilities and stockholders’ equity	$ 642,397	$ 338,112

XML

Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Allowance on accounts receivable	$ 1,327	$ 754
Accumulated depreciation	$ 37,142	$ 36,447
Preferred stock, par value (in dollars per share)	$ 0.00001	$ 0.00001
Preferred stock, shares authorized (in shares)	25,000,000	25,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.00001	$ 0.00001
Common stock, shares authorized (in shares)	200,000,000	200,000,000
Common stock, shares issued (in shares)	58,289,613	52,969,869
Common stock, shares outstanding (in shares)	58,289,613	52,969,869
Treasury stock, shares (in shares)	20,220,227	20,220,227

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Unaudited Condensed Consolidated Statements of Operations and Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Net sales	$ 99,226	$ 79,643	$ 200,441	$ 158,885
Cost of sales	36,083	34,006	72,837	64,578
Gross margin	63,143	45,637	127,604	94,307
Operating expenses:
Sales, general and administrative	39,343	31,824	75,102	62,681
Research and development	18,501	12,989	33,620	25,452
Total operating expenses	57,844	44,813	108,722	88,133
Income from operations	5,299	824	18,882	6,174
Interest and other income (expense), net	(295)	1,684	968	1,890
Income before provision for income taxes	5,004	2,508	19,850	8,064
Provision for (benefit from) income taxes	(3,481)	232	(1,561)	1,208
Net income	$ 8,485	$ 2,276	$ 21,411	$ 6,856
Net income per common and common equivalent shares:
Basic (in dollars per share)	$ 0.15	$ 0.04	$ 0.39	$ 0.13
Diluted (in dollars per share)	$ 0.15	$ 0.04	$ 0.38	$ 0.13
Weighted average number of common and common equivalent shares outstanding:
Basic (in shares)	55,527	52,736	54,330	52,578
Diluted (in shares)	57,054	53,770	55,892	53,723
UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
Net income	$ 8,485	$ 2,276	$ 21,411	$ 6,856
Foreign currency translation adjustments	655	(716)	(52)	(551)
Comprehensive income	9,140	1,560	21,359	6,305
Product
Net sales	76,721	66,875	157,695	134,366
Cost of sales	31,087	30,172	63,521	57,244
Service
Net sales	22,505	12,768	42,746	24,519
Cost of sales	$ 4,996	$ 3,834	$ 9,316	$ 7,334

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Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Cash flows from operating activities:
Net income	$ 21,411	$ 6,856
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	5,161	3,400
Loss on disposal and impairment of property and equipment, net	153	0
Loss on disposal and abandonment of intangible assets	54	0
Bond premium amortization	30	427
Stock-based compensation	9,047	7,423
Deferred income taxes	(58)	(1,458)
Unrecognized tax benefits	212	282
Change in assets and liabilities:
Accounts and notes receivable and contract assets	(24,791)	(15,925)
Inventory	4,508	(25,768)
Prepaid expenses and other assets	(7,429)	(10,055)
Accounts payable, accrued and other liabilities	(2,688)	7,531
Deferred revenue	10,496	14,829
Net cash provided by (used in) operating activities	16,106	(12,458)
Cash flows from investing activities:
Purchases of investments	(4,331)	(19,950)
Proceeds from maturity of investments	7,038	34,377
Purchases of property and equipment	(4,665)	(5,741)
Purchases of intangible assets	(254)	(170)
Business acquisitions	(5,014)	(6,479)
Net cash provided (used in) by investing activities	(7,226)	2,037
Cash flows from financing activities:
Net proceeds from equity offering	233,993	0
Proceeds from options exercised	586	1,241
Payroll tax payments for net-settled stock awards	(10,807)	(2,572)
Payment of contingent consideration for a business acquisition	(575)	0
Net cash provided by (used in) financing activities	223,197	(1,331)
Effect of exchange rate changes on cash, cash equivalents and restricted cash	(538)	(857)
Net increase (decrease) in cash, cash equivalents and restricted cash	231,539	(12,609)
Cash, cash equivalents and restricted cash, beginning of period	78,438	43,969
Cash, cash equivalents and restricted cash, end of period	309,977	31,360
Supplemental disclosures:
Cash and cash equivalents	307,507	28,038
Total cash, cash equivalents and restricted cash shown in the statements of cash flows	78,438	43,969
Cash paid for income taxes, net of refunds	7,758	9,934
Non-cash transactions
Property and equipment purchases in accounts payable and accrued liabilities	665	1,351
Non-cash purchase consideration related to business combinations	$ 12,288	$ 1,026

XML

Organization and Summary of Significant Accounting Policies

6 Months Ended

Jun. 30, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization and Summary of Significant Accounting Policies

Organization and Summary of Significant Accounting Policies

Axon Enterprise, Inc. (“Axon” or the “Company”) is a developer and manufacturer of advanced conducted electrical weapons (“CEWs”) designed for use by law enforcement, military, corrections, private security personnel, and by private individuals for personal defense. In addition, the Company has developed full technology solutions for the capture, secure storage and management of video/audio evidence as well as other tactical capabilities for use in law enforcement. The Company sells its products worldwide through its direct sales force, distribution partners, online store and third-party resellers. The Company was incorporated in Arizona in September 1993, and reincorporated in Delaware in January 2001. The Company’s corporate headquarters and manufacturing facilities are located in Scottsdale, Arizona. The Company’s main software development division is located in Seattle, Washington, and it develops artificial intelligence technologies through its wholly-owned subsidiary in Vietnam, Axon Public Safety Southeast Asia LLC. During 2018, the Company established Axon Public Safety Finland OY in Tampere, Finland that operates a connected hardware team focused on the development of the Company's hardware products. Axon Public Safety BV, a wholly owned subsidiary of the Company, supports the Company's international sales and marketing efforts, and is located in Amsterdam, Netherlands. Axon Public Safety BV wholly owns two subsidiaries, Axon Public Safety U.K. LTD and Axon Public Safety AU, that serve as direct sales operations in the United Kingdom ("U.K.") and Australia, respectively. The Company also sells to certain international markets through a wholly-owned subsidiary, Axon Public Safety Germany SE, and sells into the Canadian market through its wholly-owned subsidiary, Axon Public Safety Canada, Inc.

The accompanying unaudited condensed consolidated financial statements include the accounts of the Company and its subsidiaries. All material intercompany accounts, transactions, and profits have been eliminated.

Basis of Presentation and Use of Estimates

These unaudited condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission. Certain information related to the Company’s organization, significant accounting policies and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) has been condensed or omitted. The accounting policies followed in the preparation of these unaudited condensed consolidated financial statements are consistent with those followed in the Company’s annual consolidated financial statements for the year ended December 31, 2017, as filed on Form 10-K, with the exception of the Company's adoption of Topic 606. In the opinion of management, these unaudited condensed consolidated financial statements contain all material adjustments, consisting only of normal recurring adjustments, necessary to fairly state the Company’s financial position, results of operations and cash flows for the periods presented and the presentations and disclosures herein are adequate when read in conjunction with the Company’s Form 10-K for the year ended December 31, 2017. The results of operations for the six months ended June 30, 2018 and 2017 are not necessarily indicative of the results to be expected for the full year (or any other period). Significant estimates and assumptions in these unaudited condensed consolidated financial statements include:

• product warranty reserves,

• inventory valuation,

• revenue recognition,

• valuation of goodwill, intangible and long-lived assets,

• recognition, measurement and valuation of current and deferred income taxes,

• fair value of stock awards issued and the estimated vesting periods for performance-based stock awards,

• recognition and measurement of contingencies and accrued litigation expense, and

• fair values of identified tangible and intangible assets acquired and liabilities assumed in business combinations.

Actual results could differ materially from those estimates.

Segment Information

The Company is comprised of two reportable segments: the manufacture and sale of CEWs, batteries, accessories, extended warranties and other products and services (the “TASER Weapons” segment); and the software and sensors business, which includes the sale of devices, wearables, applications, cloud and mobile products (collectively, the “Software and Sensors” segment). Within the Software and Sensors segment, the Company specifies sales of products and services. Revenue from the Company's “products” in the Software and Sensors segment are generally sales of sensors, including on-officer body cameras, Axon Fleet cameras, other hardware sensors, warranties on sensors, and other products, and is sometimes referred to as Sensors and Other revenue. Revenue from the Company's “services” in the Software and Sensors segment comprise sales related to the Axon Cloud, which includes Evidence.com, cloud-based evidence management software revenue, other recurring cloud-hosted software revenue and related professional services, and is sometimes referred to as Axon Cloud revenue. Within the Software and Sensors segment, the Company includes only revenues and costs attributable to that segment which include: costs of sales for both products and services, direct labor, selling expenses for the sales team, product management and research and development ("R&D") for products included, or to be included, within the Software and Sensors segment. All other costs are included in the TASER Weapons segment.

The Company’s Chief Executive Officer, who is the Chief Operating Decision Maker (the “CODM”), is not provided asset information by segment. Reportable segments are determined based on discrete financial information reviewed by the CODM for the Company. The Company organizes and reviews operations based on products and services. The Company performs an annual analysis of its reportable segments. Additional information related to the Company’s business segments is summarized in Note 14.

Geographic Information and Major Customers

For the three and six months ended June 30, 2018 and 2017, no individual country outside the U.S. represented more than 10% of total net sales. Individual sales transactions in the international market are generally larger and occur more intermittently than in the domestic market due to the profile of the Company's customers.

For the three and six months ended June 30, 2018 and 2017, no customer represented more than 10% of total net sales. At June 30, 2018 and December 31, 2017, no customer represented more than 10% of the aggregate accounts and notes receivable balance and contract assets.

Income per Common Share

Basic income per common share is computed by dividing net income by the weighted average number of common shares outstanding during the periods presented. Potentially dilutive securities include outstanding stock options and unvested restricted stock units ("RSUs"). The dilutive effect of potentially dilutive securities is reflected in diluted earnings per share by application of the treasury stock method. Under the treasury stock method, an increase in the fair market value of the Company’s common stock can result in a greater dilutive effect from potentially dilutive securities.

The calculation of the weighted average number of shares outstanding and earnings per share are as follows (in thousands except per share data):

	Three Months Ended June 30,				Six Months Ended June 30,
	2018		2017		2018		2017
Numerator for basic and diluted earnings per share:
Net income	$	8,485	$	2,276	$	21,411	$	6,856
Denominator:
Weighted average shares outstanding	55,527		52,736		54,330		52,578
Dilutive effect of stock-based awards	1,527		1,034		1,562		1,145
Diluted weighted average shares outstanding	57,054		53,770		55,892		53,723
Anti-dilutive stock-based awards excluded	3,023		544		1,533		690
Net income per common share:
Basic	$	0.15	$	0.04	$	0.39	$	0.13
Diluted	$	0.15	$	0.04	$	0.38	$	0.13

Standard Warranties

The Company warranties its CEWs, Axon cameras and certain related accessories from manufacturing defects on a limited basis for a period of one year after purchase and, thereafter, will replace any defective unit for a fee. Estimated costs for the standard warranty are charged to cost of products sold when revenue is recorded for the related product. Future warranty costs are estimated based on historical data related to warranty claims on a quarterly basis and this rate is applied to current product sales. Historically, reserve amounts have been increased if management becomes aware of a component failure or other issue that could result in larger than anticipated warranty claims from customers. The warranty reserve is reviewed quarterly to verify that it sufficiently reflects the remaining warranty obligations based on the anticipated expenditures over the balance of the warranty obligation period, and adjustments are made when actual warranty claim experience differs from estimates. The warranty reserve is included in accrued liabilities on the accompanying consolidated balance sheets. 

Changes in the Company’s estimated product warranty liabilities were as follows (in thousands):

	Six Months Ended June 30,
	2018			2017
Balance, beginning of period	$	644		$	780
Utilization of accrual	(149		)	(120		)
Warranty expense (recovery)	10			(96		)
Balance, end of period	$	505		$	564

Fair Value Measurements and Financial Instruments

The Company uses the fair value framework that prioritizes the inputs to valuation techniques for measuring financial assets and liabilities measured on a recurring basis and for non-financial assets and liabilities when these items are re-measured. Fair value is considered to be the exchange price in an orderly transaction between market participants to sell an asset or transfer a liability at the measurement date. The hierarchy below lists three levels of fair value based on the extent to which inputs used in measuring fair value are observable in the market. The Company categorizes each of its fair value measurements in one of these three levels based on the lowest level input that is significant to the fair value measurement in its entirety. These levels are:

• Level 1 – Valuation techniques in which all significant inputs are unadjusted quoted prices from active markets for assets or liabilities that are identical to the assets or liabilities being measured.

• Level 2 – Valuation techniques in which significant inputs include quoted prices from active markets for assets or liabilities that are similar to the assets or liabilities being measured and/or quoted prices for assets or liabilities that are identical or similar to the assets or liabilities being measured from markets that are not active. Also, model-derived valuations in which all significant inputs and significant value drivers are observable in active markets are Level 2 valuation techniques.

• Level 3 – Valuation techniques in which one or more significant inputs or significant value drivers are unobservable. Unobservable inputs are valuation technique inputs that reflect the Company's own assumptions about inputs that market participants would use in pricing an asset or liability.

The Company has cash equivalents and investments, which at June 30, 2018 and December 31, 2017 were comprised of money market funds, state and municipal obligations, corporate bonds, and certificates of deposits. See additional disclosure regarding the fair value of the Company’s cash equivalents and investments in Note 3. Included in the balance of Other assets as of June 30, 2018 and December 31, 2017 was $3.8 million related to corporate-owned life insurance policies which are used to fund the Company’s deferred compensation plan. The Company determines the fair value of its insurance contracts by obtaining the cash surrender value of the contracts from the issuer, a Level 2 valuation technique.

The Company’s financial instruments also include accounts and notes receivable, accounts payable, notes payable and accrued liabilities. Due to the short-term nature of these instruments, their fair values approximate their carrying values on the accompanying condensed consolidated balance sheets.

Valuation of Goodwill, Intangibles and Long-lived Assets

Management evaluates whether events and circumstances have occurred that indicate the remaining estimated useful life of long-lived assets and identifiable intangible assets, excluding goodwill and intangible assets with indefinite useful lives, may warrant revision or that the remaining balance of these assets may not be recoverable. Such circumstances could include, but are not limited to, a change in the product mix, a change in the way products are created, produced or delivered, or a significant change in the way products are branded and marketed. In performing the review for recoverability, management estimates the future undiscounted cash flows expected to result from the use of the assets and their eventual disposition. The amount of the impairment loss, if impairment exists, is calculated based on the excess of the carrying amounts of the assets over their estimated fair value computed using discounted cash flows.

The Company does not amortize goodwill and intangible assets with indefinite useful lives; rather such assets are required to be tested for impairment at least annually or sooner whenever events or changes in circumstances indicate that the assets may be impaired. The Company performs its goodwill and intangible asset impairment tests in the fourth quarter of each year.

Recently Issued Accounting Guidance

In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2014-09, Revenue from Contracts with Customers (“ASU 2014-09”) and Accounting Standards Codification ("ASC") Subtopic 340-40, Other Assets and Deferred Costs - Contracts with Customers ("ASC 340-40"), (collectively, “Topic 606”). On January 1, 2018, the Company adopted Topic 606 by applying the modified retrospective method of adoption for all contracts that were not substantially completed as of the adoption date. ASU 2014-09 requires entities to recognize revenue through the application of a five-step model, which includes identification of the contract, identification of the performance obligations, determination of the transaction price, allocation of the transaction price to the performance obligations and recognition of revenue as the entity satisfies the performance obligations. Refer to Note 2 for further discussion.

In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) in order to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet for those leases classified as operating leases under existing GAAP guidance. ASU 2016-02 requires a lessee to recognize a liability to make lease payments (the lease liability) and a right-of-use asset representing its right to use the underlying asset for the lease term on the balance sheet. ASU 2016-02 is effective for the fiscal year beginning after December 15, 2018 (including interim periods within that year) using a modified retrospective approach and early adoption is permitted. The Company is currently in the process of evaluating the impact of adoption of this ASU on its consolidated financial statements, but expects that the adoption of ASU 2016-02 will have a material impact on the Company's consolidated balance sheet.

In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses, which amends ASC 326. The new guidance differs from existing GAAP guidance wherein previous standards generally delayed recognition of credit losses until the loss was probable. ASU 2016-13 eliminates the probable initial recognition threshold and, instead, reflects an entity’s current estimate of all expected credit losses. The use of forecasted information is intended to incorporate more timely information in the estimate of expected credit loss. ASU 2016-13 is effective for the fiscal year beginning after December 15, 2019, and interim periods within that fiscal year, and early adoption is permitted. The Company is currently in the process of evaluating the impact of adoption of ASU 2016-13 on its consolidated financial statements.

In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. ASU 2016-15 eliminates the diversity in practice related to the classification of certain cash receipts and payments. ASU 2016-15 designates the appropriate cash flow classification, including requirements to allocate certain components of these cash receipts and payments among operating, investing and financing activities. The Company adopted ASU 2016-15 effective January 1, 2018, and the adoption of this ASU did not have a material impact on its consolidated financial statements.

In October 2016, the FASB issued ASU 2016-16, Income Taxes (Topic 740) - Intra-Entity Transfers of Assets Other Than Inventory. ASU 2016-16 requires an entity to recognize income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. This removes the exception to postpone recognition until the asset has been sold to an outside party. The Company adopted ASU 2016-16 effective January 1, 2018, and the adoption of this ASU did not have a material impact on its consolidated financial statements.

In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows - Restricted Cash (Topic 230), which amends the existing guidance relating to the treatment of restricted cash and restricted cash equivalents on the statement of cash flows.  The Company adopted ASU 2016-18 effective January 1, 2018, and retrospectively updated the presentation of its unaudited consolidated statements of cash flows to include amounts of restricted cash with cash and cash equivalents when reconciling the beginning-of-period and end-of-period amounts. The adoption of ASU 2016-18 did not have a material impact on the Company's consolidated financial statements.

In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805) to provide a more robust framework to use in determining when a set of acquired assets and activities is a business. The amendments in ASU 2017-01 provide a screen to determine when a set of acquired integrated assets and activities is not a business, and if the screen is not met it may result in fewer transactions that qualify as a business combination under ASC Topic 805. The Company adopted ASU 2017-01 January 1, 2018, and the adoption of this ASU did not have a material impact on the Company's consolidated financial statements.

In May 2017, the FASB issued ASU 2017-09, Compensation - Stock Compensation (Topic 718), which provides guidance on determining which changes to the terms and conditions of share-based payment awards require an entity to apply modification accounting under Topic 718. The Company adopted ASU 2017-09 effective January 1, 2018, and the adoption of this ASU did not have a material impact on its consolidated financial statements.

In June 2018, the FASB issued ASU 2018-07, Compensation - Stock Compensation (Topic 718), expanding the scope of Topic 718 to include share-based payment transactions for acquiring goods and services from nonemployees. ASU 2018-07 is effective for the fiscal year beginning after December 15, 2018, and interim periods within that fiscal year, and the adoption of this ASU is not expected to have a material impact on the Company's consolidated financial statements.

Reclassification of Prior Year Presentation

Certain prior year amounts have been reclassified for consistency with the current year presentation. These reclassifications had no effect on the reported results of operations.

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Revenues

6 Months Ended

Jun. 30, 2018

Revenue from Contract with Customer [Abstract]

Revenues

Revenues

Adoption of ASC Topic 606, "Revenue from Contracts with Customers"

On January 1, 2018, the Company adopted Topic 606 using the modified retrospective method applied to those contracts which were not completed as of January 1, 2018. Results for reporting periods beginning after January 1, 2018 are presented under Topic 606, while prior period amounts are not adjusted, and continue to be reported in accordance with our historic accounting under ASC 605. The Company recorded a net increase in stockholders’ equity (retained earnings) of $19.0 million as of January 1, 2018 due to the cumulative impact of adopting Topic 606 on contracts that were not complete as of that date. The areas most significantly impacted were contracts with contingent hardware revenue and the treatment of incremental costs of obtaining contracts with customers. The impacts as a result of applying Topic 606 were a net increase to revenue of $0.6 million and $2.3 million, respectively, for the three and six months ended June 30, 2018, and a net decrease to selling, general and administrative expenses of approximately $0.9 million and $1.6 million, respectively, related to the costs of obtaining contracts for the same periods, as compared to what would have been recognized under ASC 605. The impacts to the December 31, 2017 balance sheet of adopting Topic 606 are presented below (in thousands):

	December 31, 2017 (As reported)		Impact of Adoption of Topic 606 on Opening Balance Sheet			January 1, 2018 (As adjusted)
Accounts and notes receivable, net	$	56,064	$	28,915		$	84,979
Contract assets, net	—		5,512			5,512
Prepaid expense and other current assets	21,696		2,003			23,699
Total impacted current assets	77,760		36,430			114,190
Deferred income tax assets, net	15,755		(5,158		)	10,597
Long-term notes receivable, net of current portion	36,877		(12,977		)	23,900
Other assets	15,366		5,323			20,689
Total impacted assets	145,758		23,618			169,376
Accrued liabilities	23,502		2,512			26,014
Current portion of deferred revenue	70,401		863			71,264
Total impacted current liabilities	93,903		3,375			97,278
Deferred revenue, net of current portion	54,881		1,249			56,130
Total impacted liabilities	148,784		4,624			153,408
Retained earnings	123,185		18,994			142,179
Total impacted stockholders' equity	123,185		18,994			142,179
Total impacted liabilities and stockholders' equity	271,969		23,618			295,587

Revenue Recognition

Revenues are recognized upon transfer of control of promised products or services to customers in an amount that reflects the consideration the Company expects to receive in exchange for those products or services. The Company enters into contracts that can include various combinations of products and services, each of which are generally distinct and accounted for as separate performance obligations. Revenue is recognized net of allowances for returns and any taxes collected from customers, which are subsequently remitted to governmental taxing authorities.

A performance obligation is a promise in a contract to transfer a distinct good or service to the customer, and is the unit of account in Topic 606. For contracts with multiple performance obligations, the Company allocates the contract transaction price to each performance obligation using the Company's estimate of the standalone selling price ("SSP") of each distinct good or service in the contract.

Performance obligations to deliver products, including CEWs, Axon cameras and related accessories such as cartridges, batteries and docks, are generally satisfied at the point in time the Company ships the product, as this is when the customer obtains control of the asset under our standard terms and conditions. In certain contracts with non-standard terms and conditions, these performance obligations may not be satisfied until formal customer acceptance occurs. Performance obligations to fulfill service-type extended warranties and provide our Software-as-a-Service (“SaaS”) offerings, including Evidence.com and other cloud services, are generally satisfied over time as the customer receives and consumes the benefits of these services over the stated service period.

The Company has elected to recognize shipping costs as an expense in Cost of product sales when the control of hardware products or accessories have transferred to the customer.

Nature of Products and Services

The following table presents the Company's revenues by primary product and service offering (in thousands):

	Three Months Ended June 30, 2018						Three Months Ended June 30, 2017 (1)
	TASER Weapons		Software and Sensors		Total		TASER Weapons		Software and Sensors		Total
TASER X26P	$	18,146	$	—	$	18,146	$	16,235	$	—	$	16,235
TASER X2	18,362		—		18,362		16,052		—		16,052
TASER Pulse and Bolt	1,101		—		1,101		801		—		801
Single cartridges	17,243		—		17,243		14,867		—		14,867
Axon Body	—		4,780		4,780		—		3,752		3,752
Axon Flex	—		1,535		1,535		—		3,851		3,851
Axon Dock	—		2,119		2,119		—		2,783		2,783
Axon Fleet	—		2,715		2,715		—		—		—
Evidence.com and cloud services	—		20,357		20,357		—		12,756		12,756
TASER Cam	—		762		762		—		766		766
Extended warranties	3,738		2,870		6,608		2,991		1,619		4,610
Other	2,034		3,464		5,498		2,070		1,100		3,170
Total	$	60,624	$	38,602	$	99,226	$	53,016	$	26,627	$	79,643

	Six Months Ended June 30, 2018						Six Months Ended June 30, 2017 (1)
	TASER Weapons		Software and Sensors		Total		TASER Weapons		Software and Sensors		Total
TASER X26P	$	34,620	$	—	$	34,620	$	31,903	$	—	$	31,903
TASER X2	42,294		—		42,294		35,038		—		35,038
TASER Pulse and Bolt	2,447		—		2,447		1,823		—		1,823
Single cartridges	33,357		—		33,357		31,531		—		31,531
Axon Body	—		10,338		10,338		—		7,198		7,198
Axon Flex	—		3,204		3,204		—		5,326		5,326
Axon Dock	—		5,154		5,154		—		4,770		4,770
Axon Fleet	—		4,831		4,831		—		—		—
Evidence.com and cloud services	—		40,598		40,598		—		24,498		24,498
TASER Cam	—		2,122		2,122		—		1,485		1,485
Extended warranties	7,444		5,360		12,804		5,834		3,037		8,871
Other	3,986		4,686		8,672		4,558		1,884		6,442
Total	$	124,148	$	76,293	$	200,441	$	110,687	$	48,198	$	158,885

⁽¹⁾ Amounts for the three and six months ended June 30, 2017 have not been adjusted under the modified retrospective method of adoption of Topic 606, and are presented consistent with the prior period amounts reported under ASC 605.

The Company derives revenue from two primary sources: (1) the sale of physical products, including CEWs, Axon cameras, Axon Signal enabled devices, corresponding hardware extended warranties, and related accessories such as Axon docks, cartridges and batteries, among others, and (2) subscription to the Company's Evidence.com digital evidence management SaaS (including secure cloud-based storage fees and other ancillary services), which includes varying levels of support. To a lesser extent, the Company also recognizes revenue from training, professional services and revenue related to other software and cloud services.

Many of the Company's products and services are sold on a standalone basis. The Company also bundles its hardware products and services together and sells them to its customers in single transactions, where the customer can make payments over a multi-year period. These sales may include payments for upfront hardware and services, as well as payments for hardware and services to be provided by the Company at a future date. Additionally, the Company offers customers the ability to purchase CEW cartridges and certain services on an unlimited basis over the contractual term. Due to the unlimited nature of these arrangements whereby the Company is obligated to deliver unlimited products at the customer’s request, the Company accounts for these arrangements as stand-ready obligations, and recognizes revenue ratably over the contract period. Cost of product sales will be recognized as the products are shipped to the customer.

The following table presents the Company's revenues disaggregated by geography (in thousands):

	Three Months Ended June 30,								Six Months Ended June 30,
	2018				2017 (1)				2018				2017 (1)
United States	$	78,731	79	%	$	66,200	83	%	$	156,681	78	%	$	130,952	82	%
Other countries	20,495		21		13,443		17		43,760		22		27,933		18
Total	$	99,226	100	%	$	79,643	100	%	$	200,441	100	%	$	158,885	100	%

⁽¹⁾ Amounts for the three and six months ended June 30, 2017 have not been adjusted under the modified retrospective method of adoption of Topic 606, and are presented consistent with the prior period amounts reported under ASC 605.

Contract Balances

The timing of revenue recognition may differ from the timing of invoicing to customers. The Company generally has an unconditional right to consideration when it invoices its customers and records a receivable. The Company records a contract asset when revenue is recognized prior to invoicing, or a contract liability (deferred revenue) when revenue will be recognized subsequent to invoicing.

Contract assets generally result from the Company's subscription programs where the Company satisfies a hardware performance obligation upon shipment to the customer and the right to the portion of the transaction price allocated to that hardware performance obligation is conditional on the Company’s future performance of a SaaS service obligation under the contract. The Company recognizes a portion the amount allocated to hardware products shipped to the customer as accounts receivable when invoiced to the customer, and records the remaining allocated value as a contract asset as the Company has generally fulfilled its hardware performance obligation upon shipment.

Contract liabilities generally consist of deferred revenue on the Company’s subscription programs where the Company generally invoices customers at the beginning of each annual period and records a receivable at the time of invoicing when there is an unconditional right to consideration.

Deferred revenue is comprised mainly of unearned revenue related to the Company's Evidence.com SaaS platform, secure cloud-based storage, service-type extended warranties, stand-ready obligations in our cartridge programs, and rights to future CEW, camera and related accessories hardware in our subscription programs. Revenue for Evidence.com and cloud-based storage, our service-type extended warranties and stand-ready cartridge programs is generally recognized on a straight-line basis over the subscription term. Revenue for the rights to future hardware is generally recognized at the point in time the hardware products are shipped to the customer.

Payment terms and conditions vary by contract type and geography, but our standard terms are that payments are due within 30 days from the date of invoice.

The following table presents the Company's contract assets, contract liabilities and certain information related to these balances as of and for the six months ended June 30, 2018 (in thousands):

	June 30, 2018
Contract assets (1)	$	11,021
Contract liabilities (deferred revenue)	138,039
Revenue recognized in the period from:
Amounts included in contract liabilities at the beginning of the period	43,282

⁽¹⁾ Of the $11.0 million balance of contract assets as of June 30, 2018, $0.6 million was classified as long-term and included within "Other assets" on the accompanying condensed consolidated balance sheet.

Contract liabilities (deferred revenue) consisted of the following (in thousands):

	June 30, 2018						December 31, 2017 (1)
	Current		Long-Term		Total		Current		Long-Term		Total
Warranty:
TASER Weapons	$	11,593	$	16,508	$	28,101	$	12,501	$	18,619	$	31,120
Software and Sensors	7,001		5,551		12,552		6,293		4,195		10,488
	18,594		22,059		40,653		18,794		22,814		41,608
Hardware:
TASER Weapons	6,264		14,787		21,051		4,164		11,401		15,565
Software and Sensors	15,931		15,379		31,310		16,956		14,781		31,737
	22,195		30,166		52,361		21,120		26,182		47,302
Software and Sensors Services	35,794		9,231		45,025		30,487		5,885		36,372
Total	$	76,583	$	61,456	$	138,039	$	70,401	$	54,881	$	125,282

	June 30, 2018						December 31, 2017 (1)
	Current		Long-Term		Total		Current		Long-Term		Total
TASER Weapons	$	17,857	$	31,295	$	49,152	$	16,665	$	30,020	$	46,685
Software and Sensors	58,726		30,161		88,887		53,736		24,861		78,597
Total	$	76,583	$	61,456	$	138,039	$	70,401	$	54,881	$	125,282

⁽¹⁾ Amounts as of December 31, 2017 have not been adjusted under the modified retrospective method of adoption of Topic 606, and are presented consistent with the prior period amounts reported under ASC 605.

Remaining Performance Obligations

As of June 30, 2018, the Company had approximately $750 million of remaining performance obligations, which included both recognized contract liabilities as well as amounts that will be invoiced and recognized in future periods. The remaining performance obligations are limited only to arrangements that meet the definition of a contract under Topic 606 as of June 30, 2018. The Company expects to recognize between 15% - 20% of this balance over the next twelve months and expects the remainder to be recognized over the following five to seven years, subject to risks related to delayed deployments, budget appropriation or other contract cancellation clauses.

Costs to Obtain a Contract

The Company recognizes an asset for the incremental costs of obtaining a contract with a customer, which consist primarily of sales commissions. These costs are ascribed to or allocated to the underlying performance obligations in the contract and amortized consistent with the recognition timing of the revenue for the underlying performance obligations.

For contract costs related to performance obligations with an amortization period of one year or less, the Company applies the practical expedient to expense these sales commissions when incurred. These costs are recorded as incurred within sales, general and administrative expenses on the accompanying condensed consolidated statement of operations and comprehensive income.

As of June 30, 2018, the Company's assets for costs to obtain contracts were as follows (in thousands):

	June 30, 2018
Current deferred commissions (1)	$	5,941
Deferred commissions, net of current portion (2)	13,766
	$	19,707

⁽¹⁾ Current deferred commissions are included within "Prepaid expenses and other current assets" on the accompanying condensed consolidated balance sheet.

⁽²⁾ Deferred commissions, net of current portion, are included in "Other assets" on the accompanying condensed consolidated balance sheet.

During the three and six months ended June 30, 2018, the Company recognized $1.2 million and $2.3 million, respectively, of amortization related to deferred commissions. These costs are recorded within sales, general and administrative expenses on the accompanying condensed consolidated statement of operations and comprehensive income.

Significant Judgments

The Company’s contracts with certain municipal government customers may be subject to budget appropriation, other contract cancellation clauses or future periods which are optional. In contracts where the customer’s performance is subject to budget appropriation clauses, we generally consider the likelihood of non-appropriation to be remote when determining the contract term and transaction price. Contracts with other cancellation provisions or optional periods may require judgment in determining the contract term, including the existence of material rights, transaction price and identifying the performance obligations.

At times, customers may request changes that either amend, replace or cancel existing contracts. Judgment is required to determine whether the specific facts and circumstances within the contracts require the changes to be accounted for as a separate contract or as a modification. Generally, contract modifications containing additional goods and services that are determined to be distinct and sold at their SSP are accounted for as a separate contract. For contract modifications where both criteria are not met, the original contract is updated and the required adjustments to revenue will be made accordingly.

The Company's contracts with customers often include promises to transfer multiple products and services to a customer. Determining whether products and services are considered distinct performance obligations that should be accounted for separately rather than together may require significant judgment. The Company considers CEW devices and related accessories as well as cameras and related accessories to be separately identifiable from each other as well as from extended warranties on these products and the SaaS subscriptions to Evidence.com and other cloud services.

In contracts where there are timing differences between when the Company transfers a promised good or service to the customer and when the customer pays for that good or service, the Company has determined that, with the exception of its TASER 60 installment purchase arrangements, its contracts generally do not include a significant financing component. For the three and six months ended June 30, 2018, the Company recorded revenue of $10.2 million and $24.2 million, respectively, including $0.3 million and $0.6 million, respectively, of interest income, under the Company’s TASER 60 plan. For the three and six months ended June 30, 2017, the Company recorded revenue of $5.3 million and $13.3 million, respectively, including $0.2 million and $0.3 million, respectively, of interest income, under the Company’s TASER 60 plan. Amounts for the three and six months ended June 30, 2017 have not been adjusted under the modified retrospective method of adoption of Topic 606.

Judgment is required to determine the SSP for each distinct performance obligation. The Company analyzes separate sales of its products and services as a basis for estimating the SSP of its products and services and then uses that SSP as the basis for allocating the transaction price when its products and services are sold together in a contract with multiple performance obligations. In instances where the SSP is not directly observable, such as when the Company does not sell the product or service separately, it determines the SSP using information that may include market conditions, time value of money and other observable inputs. The Company typically has more than one SSP for individual products and services due to the stratification of those products and services by customers and circumstances. In these instances, the Company may use information such geographic region and distribution channel in determining the SSP.

Sales are typically made on credit and we generally do not require collateral. We perform ongoing credit evaluations of our customers’ financial condition and maintain an allowance for doubtful accounts. Uncollectible accounts are written off when deemed uncollectible, and accounts and notes receivable are presented net of an allowance for doubtful accounts. This allowance represents our best estimate and is based on our judgment after considering a number of factors including third-party credit reports, actual payment history, customer-specific financial information and broader market and economic trends and conditions. In the event that actual uncollectible amounts differ from our estimates, additional expense could be necessary.

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Cash, Cash Equivalents and Investments

6 Months Ended

Jun. 30, 2018

Cash and Cash Equivalents [Abstract]

Cash, Cash Equivalents and Investments

Cash, Cash Equivalents and Investments

The following tables summarize the Company's cash, cash equivalents, and held-to-maturity investments at June 30, 2018 and December 31, 2017 (in thousands):

	As of June 30, 2018
	Amortized Cost		Gross Unrealized Losses			Fair Value		Cash and Cash Equivalents		Short-Term Investments
Cash	$	47,837	$	—		$	47,837	$	47,837	$	—
Level 1:
Money market funds	256,679		—			256,679		256,679		—
Corporate bonds	4,528		(3		)	4,525		1,000		3,528
Subtotal	261,207		(3		)	261,204		257,679		3,528
Level 2:
State and municipal obligations	2,587		—			2,587		1,991		596
Total	$	311,631	$	(3	)	$	311,628	$	307,507	$	4,124

	As of December 31, 2017
	Amortized Cost		Gross Unrealized Losses			Fair Value		Cash and Cash Equivalents		Short-Term Investments
Cash	$	53,459	$	—		$	53,459	$	53,459	$	—
Level 1:
Money market funds	20,884		—			20,884		20,884		—
Corporate bonds	6,632		(6		)	6,626		—		6,632
Subtotal	27,516		(6		)	27,510		20,884		6,632
Level 2:
State and municipal obligations	992		—			992		762		230
Total	$	81,967	$	(6	)	$	81,961	$	75,105	$	6,862

The Company believes the unrealized losses on its investments are due to interest rate fluctuations. As these investments are short-term in nature, are expected to be redeemed at par value, and/or because the Company has the ability and intent to hold these investments to maturity, the Company does not consider these investments to be other than temporarily impaired at June 30, 2018 or as of December 31, 2017.

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Inventory

6 Months Ended

Jun. 30, 2018

Inventory Disclosure [Abstract]

Inventory

Inventory

Inventories are stated at the lower of cost and net realizable value. Cost is determined using the weighted average cost of raw materials which approximates the first-in, first-out (“FIFO”) method and includes allocations of manufacturing labor and overhead. Included in finished goods at June 30, 2018 and December 31, 2017 was $1.7 million and $1.4 million, respectively, of trial and evaluation hardware units. Provisions are made to reduce excess, obsolete or slow-moving inventories to their net realizable value. Inventory consisted of the following at June 30, 2018 and December 31, 2017 (in thousands):

	2018		2017
Raw materials	$	20,288	$	20,119
Finished goods	23,679		25,346
Total inventory	$	43,967	$	45,465

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Goodwill and Intangible Assets

6 Months Ended

Jun. 30, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Goodwill and Intangible Assets

Goodwill and Intangible Assets

The changes in the carrying amount of goodwill for the six months ended June 30, 2018 were as follows (in thousands):

	TASER Weapons			Software and Sensors			Total
Balance, beginning of period	$	1,453		$	13,474		$	14,927
Goodwill acquired	—			9,870			9,870
Foreign currency translation adjustment	(56		)	(57		)	(113		)
Balance, end of period	$	1,397		$	23,287		$	24,684

Intangible assets (other than goodwill) consisted of the following (in thousands):

		June 30, 2018							December 31, 2017
	Useful Life	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Amortized:
Domain names	5-10 years	$	3,161	$	(580	)	$	2,581	$	3,161	$	(428	)	$	2,733
Issued patents	4-15 years	2,858		(1,004		)	1,854		2,697		(913		)	1,784
Issued trademarks	3-11 years	1,010		(545		)	465		860		(397		)	463
Customer relationships	4-8 years	3,742		(616		)	3,126		1,377		(451		)	926
Non-compete agreements	3-4 years	548		(398		)	150		556		(346		)	210
Developed technology	3-7 years	15,449		(5,594		)	9,855		13,469		(3,956		)	9,513
Re-acquired distribution rights	2 years	2,023		(1,349		)	674		2,133		(711		)	1,422
Total amortized		28,791		(10,086		)	18,705		24,253		(7,202		)	17,051
Not amortized:
TASER trademark		900					900		900					900
Patents and trademarks pending		837					837		872					872
Total not amortized		1,737					1,737		1,772					1,772
Total intangible assets		$	30,528	$	(10,086	)	$	20,442	$	26,025	$	(7,202	)	$	18,823

Amortization expense of intangible assets for the three and six months ended June 30, 2018 was $1.7 million and $3.0 million, respectively. Amortization expense of intangible assets for the three and six months ended June 30, 2017 was $1.0 million and $1.9 million, respectively. Estimated amortization for intangible assets with definite lives for the remaining six months of 2018, the next five years ended December 31, and thereafter, is as follows (in thousands):

2018	$	3,179
2019	4,884
2020	3,417
2021	2,847
2022	1,192
2023	926
Thereafter	2,260
Total	$	18,705

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Other Long-Term Assets

6 Months Ended

Jun. 30, 2018

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Other Long-Term Assets

Other Long-Term Assets

Other long-term assets consisted of the following at June 30, 2018 and December 31, 2017 (in thousands):

	2018		2017
Cash surrender value of corporate-owned life insurance policies	$	3,847	$	3,846
Deferred commissions (1)	13,766		6,803
Restricted cash (2)	2,470		3,333
Prepaid expenses, deposits and other	2,748		1,384
Total other long-term assets	$	22,831	$	15,366

⁽¹⁾ Represents assets for the incremental costs of obtaining a contract with a customer, which consist primarily of sales commissions. These costs are ascribed to or allocated to the underlying performance obligations in the contract and amortized consistent with the recognition timing of the revenue for the underlying performance obligations. The amounts as of December 31, 2017 have not been adjusted under the modified retrospective method of adoption of Topic 606, and are presented consistent with the prior period amounts. In connection with the Company's adoption of Topic 606, it recorded an adjustment of $7.3 million as of January 1, 2018, and of that amount, $5.4 million was recorded within long-term other assets. The adjusted balance of long-term deferred commissions as of January 1, 2018 was $12.2 million.

⁽²⁾ As of June 30, 2018 and December 31, 2017, restricted cash primarily consisted of $1.8 million and $2.7 million, respectively, of sales proceeds related to long-term contracts with customers. As of June 30, 2018, the proceeds are held in escrow until certain billing milestones are achieved, and then specified amounts are transferred to the Company's operating accounts.

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Accrued Liabilities

6 Months Ended

Jun. 30, 2018

Payables and Accruals [Abstract]

Accrued Liabilities

Accrued Liabilities

Accrued liabilities consisted of the following at June 30, 2018 and December 31, 2017 (in thousands):

	2018		2017
Accrued salaries, benefits and bonus	$	12,527	$	8,957
Accrued professional, consulting and lobbying fees	2,683		3,870
Accrued warranty expense	505		644
Accrued income and other taxes	2,894		2,558
Other accrued liabilities	11,386		7,473
Accrued liabilities	$	29,995	$	23,502

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Income Taxes

6 Months Ended

Jun. 30, 2018

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

ASC 740 requires a company to record the effects of a tax law change in the period of enactment; however, shortly after the enactment of the Tax Cuts and Jobs Act (the "Tax Act"), the SEC staff issued Staff Accounting Bulletin 118 ("SAB 118"), which allows a company to record a provisional amount when it does not have the necessary information available, prepared, or analyzed in reasonable detail to complete its accounting for the change in the tax law. The measurement period ends when the company has obtained, prepared and analyzed the information necessary to finalize its accounting, but cannot extend beyond one year. The Company continues to analyze the impact of the Tax Act and expects that as additional guidance from IRS Treasury is provided, further updates will be necessary.

The Tax Act imposes a U.S. entity tax on global intangible low-taxed income ("GILTI") earned by certain foreign subsidiaries. The FASB Staff Q&A, Topic 740, No. 5, Accounting for Global Intangible Low-Taxed Income, states that an entity can make an accounting policy election to either recognize deferred taxes for temporary basis differences expected to reverse as GILTI in future years or provide for the tax expense related to GILTI in the year the tax is incurred as a period expense only. Given the complexity of the GILTI provisions, we are still evaluating the effects of the GILTI provisions and have not yet determined our accounting policy. At June 30, 2018, because we are still evaluating the GILTI provisions and our analysis of future taxable income that is subject to GILTI, we have included GILTI related to current-year operations only in our EAETR (estimated annual effective tax rate) and have not provided additional GILTI on deferred items.

Deferred Tax Assets

Net deferred income tax assets at June 30, 2018, include capitalized R&D costs, R&D tax credits, stock-based compensation expense, deferred revenue, warranty and inventory reserves, accrued vacation, and other items, partially offset by accelerated depreciation expense and intangible amortization that is not tax deductible. The Company’s total net deferred tax assets at June 30, 2018 were $15.8 million.

In preparing the Company’s condensed consolidated financial statements, management assesses the likelihood that its deferred tax assets will be realized from future taxable income. In evaluating the Company’s ability to recover its deferred income tax assets, management considers all available positive and negative evidence, including its operating results, ongoing tax planning and forecasts of future taxable income on a jurisdiction by jurisdiction basis. A valuation allowance is established if it is determined that it is more likely than not that some portion or all of the net deferred tax assets will not be realized. Management exercises significant judgment in determining its provisions for income taxes, its deferred tax assets and liabilities, and its future taxable income for purposes of assessing its ability to utilize any future tax benefit from its deferred tax assets.

Although management believes that its tax estimates are reasonable, the ultimate tax determination involves significant judgments that could become subject to audit by tax authorities in the ordinary course of business. As of each reporting date, management considers new evidence, both positive and negative, that could impact management’s view with regard to future realization of deferred tax assets. As of June 30, 2018, the Company continues to demonstrate three-year cumulative pre-tax income in the U.S. federal and Arizona tax jurisdictions; however, the Company's Arizona R&D Tax Credits start to expire in 2018 with a significant tranche with a gross value of $1.2 million expiring if not used by the end of 2019. It appears that the Company’s long term investments, which impact short term profits, will likely result in some of the R&D credits expiring before they are utilized. Therefore, management has concluded that it is more likely than not that a portion of the Company’s deferred tax assets will not be realized and has established a valuation allowance.

The Company has claimed R&D tax credits of approximately $17.0 million for federal, Arizona and California income tax purposes related to tax years 2003 to 2018. Management has made the determination that it is more likely than not that the full benefit of the R&D tax credits will not be sustained upon examination and recorded a liability for unrecognized tax benefits of $3.8 million as of June 30, 2018. In addition, management accrued $0.1 million for estimated uncertain tax positions related to certain state income tax liabilities, for a total unrecognized tax benefit as of June 30, 2018 of $3.9 million. Management expects the amount of unrecognized tax benefit liability to increase by $0.2 million within the next 12 months. Should the unrecognized benefit of $3.9 million be recognized, the Company's effective tax rate would be favorably impacted. Approximately $2.1 million of the unrecognized tax benefit associated with R&D credits has been netted against the R&D deferred tax asset.

Effective Tax Rate

The Company’s overall effective tax rate for the six months ended June 30, 2018, after discrete period adjustments, was (7.9)%. Before discrete adjustments, the tax rate was 22.8%, which is more than the federal statutory rate primarily due to state taxes and non-deductible expenses for items such as meals and entertainment, executive compensation limitation under IRC section 162(m), lobbying fees, an income inclusion from GILTI, offset by a reduction for foreign-derived intangible income ("FDII"). This was partially offset by R&D tax credit deductions. The effective tax rate was favorably impacted by a $6.1 million discrete tax benefit primarily associated with windfalls related to stock-based compensation for RSUs that vested or stock options that were exercised during the six months ended June 30, 2018. Of this amount $3.4 million related to stock options exercised by the Company's CEO in connection with the Company's follow-on offering.

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Stockholders' Equity

6 Months Ended

Jun. 30, 2018

Equity [Abstract]

Stockholders' Equity

Stockholders’ Equity

Follow-On Offering

In May 2018, the Company sold 4,645,000 shares of its common stock, which included 645,000 shares pursuant to the full exercise of the underwriters' option to purchase additional shares, in an underwritten public offering at a price of $53.00 per share, which resulted in gross proceeds of $246.2 million. Net proceeds to the Company after deducting fees, commissions, and other expenses related to the offering were $234.0 million.

CEO Performance Award

On May 24, 2018 (the “Grant Date”), our stockholders approved the Board of Directors’ grant of 6,365,856 stock option awards to Patrick W. Smith, the Company's CEO (the “CEO Performance Award”). The CEO Performance Award consists of 12 vesting tranches with a vesting schedule based entirely on the attainment of both operational goals (performance conditions) and market capitalization goals (market conditions), assuming continued employment either as the CEO or as both Executive Chairman and Chief Product Officer and service through each vesting date. Each of the 12 vesting tranches of the CEO Performance Award have a 10-year contractual term and will vest upon certification by the Board of Directors that both (i) the market capitalization goal for such tranche, which begins at $2.5 billion for the first tranche and increases by increments of $1.0 billion thereafter, and (ii) any one of the following eight operational goals focused on revenue or eight operational goals focused on Adjusted EBITDA have been met for the previous four consecutive fiscal quarters. Adjusted EBITDA is defined as net income (loss) attributable to common stockholders before interest expense, provision (benefit) for income taxes, depreciation and amortization, gains and losses on dispositions of property and equipment and intangible assets, and stock-based compensation expense.

Eight Separate Revenue Goals (1) (in thousands)	Eight Separate Adjusted EBITDA-Goals (in thousands)
Goal #1, $710,058	Goal #9, $125,000
Goal #2, $860,058	Goal #10, $155,000
Goal #3, $1,010,058	Goal #11, $175,000
Goal #4, $1,210,058	Goal #12, $190,000
Goal #5, $1,410,058	Goal #13, $200,000
Goal #6, $1,610,058	Goal #14, $210,000
Goal #7, $1,810,058	Goal #15, $220,000
Goal #8, $2,010,058	Goal #16, $230,000

⁽¹⁾ In connection with the business combination that was completed during the three months ended June 30, 2018 (Note 15), the revenue goals have been adjusted for the acquiree's Target Revenue, as defined in the CEO Performance Award agreement.

As of June 30, 2018, the following operational goals were considered probable of achievement:

• Total revenue of $710.1 million; and

• Adjusted EBITDA of $125.0 million

Stock-based compensation expense associated with the CEO Performance Award is recognized over the longer of the expected achievement period for each pair of market capitalization and operational goals, beginning at the point in time when the relevant operational goal is considered probable of being met. The market capitalization goal period and the valuation of each tranche are determined using a Monte Carlo simulation and is used as the basis for determining the expected achievement period of the market capitalization goal. The probability of meeting an operational goal and the expected achievement point in time for meeting a probable operational goal are based on a subjective assessment of our forward-looking financial projections, taking into consideration statistical analysis. Even though no tranches of the CEO Performance Award vest unless a market capitalization and a matching operational goal are both achieved, stock-based compensation expense is recognized only when an operational goal is considered probable of achievement regardless of whether a market capitalization goal is actually achieved. Additionally, stock-based compensation represents a non-cash expense and is recorded as a selling, general, and administrative operating expense on the Company's condensed and consolidated statement of operations.

None of the stock options granted under the CEO Performance Award have vested thus far as the market capitalization goals and operational goals have not yet been achieved as of June 30, 2018. However, as there are two operational goals considered probable of achievement, the Company recorded stock-based compensation expense of $0.5 million related to the CEO Performance Award from the Grant Date through June 30, 2018. The number of stock options expected to vest is 1.1 million shares.

As of June 30, 2018, the Company had $44.8 million of total unrecognized stock-based compensation expense for the performance goals that were considered probable of achievement, which will be recognized over a weighted-average period of 9.2 years. As of June 30, 2018, the Company had unrecognized stock-based compensation expense of $200.7 million for the performance goals that were considered not probable of achievement.

The Company measured the fair value of the CEO Performance Award using a Monte Carlo simulation approach with the following assumptions: risk-free interest rate of 2.98%, expected term of 10 years, expected volatility of 47.71% and dividend yield of 0.00%.

Stock Incentive Plan

In May 2018, the Company’s stockholders approved a new stock incentive plan authorizing an additional 1.0 million shares, plus remaining available shares under prior plans, for issuance under the new plan. Combined with the legacy stock incentive plans, there are 1.7 million shares available for grant as of June 30, 2018.

Performance-based stock awards

The Company has issued performance-based stock options and performance-based restricted stock units ("RSUs"), the vesting of which is contingent upon the achievement of certain performance criteria related to the operating performance of the Company, as well as successful and timely development and market acceptance of the Company's products.

RSUs are classified as equity and measured at the fair market value of the underlying stock at the grant date. The Company recognizes RSU expense using the straight-line attribution method over the requisite service period. For performance-based RSUs containing only performance conditions, compensation cost is recognized using the accelerated attribution model over the explicit or implicit service period. For awards containing multiple service, performance or market conditions, where all conditions must be satisfied prior to vesting, compensation expense is recognized over the longest explicit, implicit or derived service period, based on management’s estimate of the probability of the performance criteria being satisfied, adjusted at each balance sheet date.

For performance-based options, stock-based compensation expense is recognized over the expected performance achievement period of individual performance goals when the achievement of each individual performance goal becomes probable. For performance-based options with a vesting schedule based entirely on the attainment of both performance and market conditions, stock-based compensation expense is recognized for each pair of performance and market conditions over the longer of the expected achievement period of the performance and market conditions, beginning at the point in time that the relevant performance condition is considered probable of achievement. The fair value of such awards is estimated on the grant date using Monte Carlo simulations.

Restricted Stock Units

The following table summarizes RSU activity for the six months ended June 30, 2018 (number of units and aggregate intrinsic value in thousands):

	Number of Units		Weighted Average Grant-Date Fair Value		Aggregate Intrinsic Value
Units outstanding, beginning of year	2,348		$	23.47
Granted	281		40.79
Released	(436	)	24.08
Forfeited	(172	)	22.40
Units outstanding, end of period	2,021		25.89		$	127,687

Aggregate intrinsic value represents the Company’s closing stock price on the last trading day of the period, which was $63.18 per share, multiplied by the number of RSUs outstanding. As of June 30, 2018, there was $41.7 million in unrecognized compensation costs related to RSUs under the Company's stock plans. The Company expects to recognize the cost related to the RSUs over a weighted average period of 2.58 years. RSUs are released when vesting requirements are met.

During the six months ended June 30, 2018, the Company granted 0.1 million performance-based RSUs. As of June 30, 2018, the performance criteria had not been met for any of the 0.5 million performance-based RSUs outstanding.The performance-based RSUs granted in 2018, 2017 and 2016 contain provisions whereby the amount of RSUs that ultimately vest is dependent upon the level of achievement of performance metrics. The amount of RSUs included in the table above related to such grants is the target level, which is the Company's best estimate of the amount of RSUs that will vest. The maximum additional number of performance-based RSUs that could be earned is 0.4 million, which are not included in the table above.

Certain RSUs that vested in the six months ended June 30, 2018 were net-share settled such that the Company withheld shares with value equivalent to the employees’ minimum statutory obligation for the applicable income and other employment taxes, and remitted the cash to the appropriate taxing authorities. Total shares withheld were 0.1 million and had a value of $4.6 million on their respective vesting dates as determined by the Company’s closing stock price on such dates. Payments for the employees’ tax obligations are reflected as a financing activity within the statement of cash flows. The Company records a liability for the tax withholding to be paid by the Company as a reduction to additional paid-in capital.

Stock Option Activity

The following table summarizes stock option activity for the six months ended June 30, 2018 (number of units and aggregate intrinsic value in thousands):

	Number of Options		Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (years)	Aggregate Intrinsic Value
Options outstanding, beginning of year	804		$	4.99
Granted	6,366		28.58
Exercised	(418	)	5.30
Expired / terminated	—		—
Options outstanding, end of period	6,752		27.21		9.40	$	242,866
Options exercisable, end of period	382		4.65		1.06	22,354
Options expected to vest, end of period	1,062

Aggregate intrinsic value represents the difference between the exercise price of the underlying stock option awards and the closing market price of the Company's common stock of $63.18 on June 30, 2018. The intrinsic value of options exercised for the six months ended June 30, 2018 and 2017 was $18.8 million and $2.6 million, respectively. As of June 30, 2018, total options outstanding included 6.4 million unvested performance-based stock options, of which 1.1 million are expected to vest.

Of the total stock options exercised during the six months ended June 30, 2018, 0.3 million were exercised and the shares then sold by the Company's CEO in connection with the Company's follow-on offering. The CEO surrendered already owned shares to cover the exercise price of the option exercises. The option exercises were net-share settled such that the Company withheld shares with value equivalent to the CEO’s minimum statutory obligation for the applicable income and other employment taxes, and remitted the cash to the appropriate taxing authorities. Total shares withheld for tax purposes and surrendered to cover the option exercises were 0.1 million and 29,854, respectively, and had a value of $6.2 million and $1.6 million, respectively, on the exercise date as determined by the Company’s closing stock price on that day. Payments for the employees’ tax obligations are reflected as a financing activity within the statement of cash flows. The Company records a liability for the tax withholding to be paid by the Company as a reduction to additional paid-in capital.

Stock-based Compensation Expense

The following table summarizes the composition of stock-based compensation for the three and six months ended June 30, 2018 and 2017 (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2018		2017		2018		2017
Cost of products sold and services delivered	$	125	$	155	$	266	$	234
Sales, general and administrative expenses	2,731		2,155		5,035		4,183
Research and development expenses	2,098		1,666		3,746		3,006
Total stock-based compensation	$	4,954	$	3,976	$	9,047	$	7,423

Stock Repurchase Plan

In February 2016, the Company's Board of Directors authorized a stock repurchase program to acquire up to $50.0 million of the Company’s outstanding common stock subject to stock market conditions and corporate considerations. During the six months ended June 30, 2018 and 2017, no common shares were purchased under the program. As of June 30, 2018, $16.3 million remains available under the plan for future purchases. The Company suspended its 10b5-1 plan during 2016, and any future purchases will be discretionary.

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Line of Credit

6 Months Ended

Jun. 30, 2018

Debt Disclosure [Abstract]

Line of Credit

Line of Credit

The Company has a $10.0 million revolving line of credit with a domestic bank. At both June 30, 2018 and December 31, 2017, there were no borrowings under the line. Under the terms of the line of credit, available borrowings are reduced by outstanding letters of credit. As of June 30, 2018, the Company had letters of credit outstanding of $2.7 million under the facility, and available borrowing of $7.3 million. The line is secured by substantially all of the assets of the Company, and bears interest at varying rates (currently LIBOR plus 1.25% or Prime less 0.50%). The line of credit matures on December 31, 2018, and requires monthly payments of interest only. The Company’s agreement with the bank requires it to comply with a maximum funded debt to earnings before interest, taxes, depreciation and amortization ("EBITDA") ratio, as defined, of no greater than 2.00 to 1.00 based upon a trailing twelve-month period. At June 30, 2018, the Company’s funded debt to EBITDA ratio was 0.002 to 1.00.

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Commitments and Contingencies

6 Months Ended

Jun. 30, 2018

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Commitments and Contingencies

Product Litigation

The Company is currently named as a defendant in seven lawsuits in which the plaintiffs allege either wrongful death or personal injury in situations in which a TASER CEW was used by law enforcement officers in connection with arrests. While the facts vary from case to case, the product liability claims are typically based on an alleged product defect resulting in injury or death, usually involving a failure to warn, and the plaintiffs are seeking monetary damages. The information throughout this note is current through the date of these financial statements.

As a general rule, it is the Company’s policy not to settle suspect injury or death cases. Exceptions are sometimes made where the settlement is strategically beneficial to the Company. Also, on occasion, the Company’s insurance company has settled such lawsuits over the Company’s objection where the risk is over the Company’s liability insurance deductibles. Due to the confidentiality of the Company's litigation strategy and the confidentiality agreements that are executed in the event of a settlement, the Company does not identify or comment on which specific lawsuits have been settled or the amount of any settlement.

In 2009, the Company implemented new risk management strategies, including revisions to product warnings and training to better protect both the Company and its customers from litigation based on “failure to warn” theories - which comprise the vast majority of the cases against the Company. These risk management strategies have been highly effective in reducing the rate and exposure from litigation post-2009. From the third quarter of 2011 to the second quarter of 2018, product liability cases have been reduced from 55 to seven active cases.

Management believes that pre-2009 cases have a different risk profile than cases which have occurred since the risk management procedures were introduced in 2009. Therefore, the Company necessarily treats certain pre-2009 cases as exceptions to the Company’s general no settlement policy in order to reduce caseload, legal costs and liability exposure.

The Company intends to continue its successful practice of aggressively defending and generally not settling litigation except in very limited and unusual circumstances as described above. With respect to each of the pending lawsuits, the following table lists the name of plaintiff, the date the Company was served with process, the jurisdiction in which the case is pending, the type of claim and the status of the matter.

Plaintiff	Month Served	Jurisdiction	Claim Type	Status
Derbyshire	Nov-09	Ontario, Canada Superior Court of Justice	Officer Injury	Discovery Phase. Trial scheduled for October 14, 2019.
Shymko	Dec-10	The Queen's Bench, Winnipeg Centre, Manitoba	Wrongful Death	Pleading Phase, currently inactive
Ramsey	Jan-12	12th Judicial Circuit Court, Broward County, FL	Wrongful Death	Discovery Phase, currently inactive
Bennett	Sep-15	11th Judicial Circuit Court, Miami-Dade County, FL	Wrongful Death	Discovery Phase
Masters	Nov-16	U.S. District Court, Western District of Missouri	Suspect Injury	Discovery Phase. Trial scheduled for December 10, 2018.
Taylor	Mar-17	U.S, District Court, Southern District of Texas	Officer Injury	Dispositive Motion Phase: The Company filed its motion for summary judgment on April 20, 2018
Wiggington	Apr-18	U.S, District Court, Western District Court of Missouri	Wrongful Death	Pleading Phase

No product liability cases were dismissed or judgments entered during the first six months of 2018 and through the date of these financial statements and there are no product litigation matters in which the Company is involved that are currently on appeal.

The claims, and in some instances the defense, of each of these lawsuits have been submitted to the Company’s insurance carriers that maintained insurance coverage during the applicable periods. The Company continues to maintain product liability insurance coverage with varying limits and deductibles. The following table provides information regarding the Company’s product liability insurance. Remaining insurance coverage is based on information received from the Company’s insurance provider (in millions).

Policy Year	Policy Start Date	Policy End Date	Insurance Coverage		Deductible Amount		Defense Costs Covered	Remaining Insurance Coverage		Active Cases and Cases on Appeal
2009	12/15/2008	12/15/2009	$	10.0	$	1.0	N	$	10.0	Derbyshire
2010	12/15/2009	12/15/2010	10.0		1.0		N	10.0		Shymko
2011	12/15/2010	12/15/2011	10.0		1.0		N	10.0		n/a
Jan-Jun 2012	12/15/2011	6/25/2012	7.0		1.0		N	7.0		Ramsey
Jul-Dec 2012	6/25/2012	12/15/2012	12.0		1.0		N	12.0		n/a
2013	12/15/2012	12/15/2013	12.0		1.0		N	12.0		n/a
2014	12/15/2013	12/15/2014	11.0		4.0		N	11.0		n/a
2015	12/15/2014	12/15/2015	10.0		5.0		N	10.0		Bennett
2016	12/15/2015	12/15/2016	10.0		5.0		N	10.0		Masters
2017	12/15/2016	12/15/2017	10.0		5.0		N	10.0		Taylor
2018	12/15/2017	12/15/2018	10.0		5.0		N	10.0		Wiggington

Other Litigation

Phazzer Patent Infringement Litigation

In February 2016, the Company filed a complaint against Phazzer Electronics Inc. (“Phazzer”) for patent infringement, trademark infringement and false advertising. On July 21, 2017, the U.S. District Court for the Middle District of Florida (Case No. 6:16-cv-00366-PGB-KRS) granted the Company's Motion for Sanctions and for a Permanent Injunction against Florida-based Phazzer. The Court issued a broad permanent injunction against Phazzer banning sales of the infringing Phazzer Enforcer CEWs and dart cartridges. The injunction prohibits Phazzer and its officers, agents, employees, and anyone acting in concert with them, from making, using, offering for sale, selling, distributing, importing or exporting Phazzer CEWs and associated cartridges. Phazzer is further enjoined from dumping its infringing inventory by “donating” CEWs to law enforcement, and from false advertising and comparison to TASER brand products. Both Phazzer and its U.S. distributors are barred from exporting CEWs or cartridges to fill foreign orders. On August 10, 2017, Phazzer filed a notice of appeal to the Federal Circuit, which is fully briefed but remains pending. Phazzer's multiple attempts to stay the injunction pending appeal have been denied by both the district and appellate courts.

On April 4, 2018, the Court entered a judgment for the Company against Phazzer in an amount exceeding $7.8 million which included an award to the Company of compensatory and treble damages for willful infringement, and also an award of reasonable attorneys’ fees and costs. The collectability of this judgment is in doubt since Phazzer has informed the Court that it is insolvent. On May 1, 2018, Phazzer appealed the damages award to the Federal Circuit. On May 11, 2018, the district court entered final judgment against Phazzer ending the district court proceedings.

In imposing severe sanctions against Phazzer, the Court found that Phazzer “engaged in a pattern of bad faith conduct designed and intended to delay, stall, and increase the cost of this litigation,” and that Phazzer repeatedly disregarded Court Orders thereby exhibiting “contemptuous”, “egregious”, “flagrant” and “intentional obstructionist behavior” resulting in willful “abuse [of] the judicial process.” The Court made similar findings in both the damages and contempt orders.

On April 27, 2017, during the district court litigation, Phazzer filed a second petition for reexamination of the Company’s patent with the USPTO. The Company’s patent (U.S. No. 7,234,262) at issue in the litigation relates to the CEW’s data recording of date and time of each trigger operation and duration of the stimulus. On April 2, 2018, the examiner issued a final office action rejecting all claims. The Company is appealing this decision. The Company’s patent remains valid and enforceable unless and until all appeals are exhausted and the patent is formally canceled (at least a 2-year process). The Phazzer injunction remains in full force and effect.

The Company's trademark that is the subject of the injunction is Federal Registration No. 4,423,789, relating to the non-functional shape of TASER CEW cartridges used to launch the darts. The injunction covers all Phazzer CEW dart cartridges that are confusingly similar to, or not more than a colorable imitation of, TASER CEW cartridges. During the litigation, Phazzer filed a petition to cancel the Company’s trademark, which the Trademark Board stayed until the conclusion of the district court litigation and all related appeals.

Digital Ally Patent Litigation

In February 2016, the Company was served with a first amended complaint filed by Digital Ally Inc. (“Digital”) in the District of Kansas (Case No. CV-16-02032-CM-JPO) alleging patent infringement regarding the Company's Axon Signal technology, commercial bribery, antitrust, and unfair competition. In March 2016, the Company was served with a second amended complaint with similar allegations. The second amended complaint seeks a judgment of infringement, monetary damages, a permanent injunction, punitive damages and attorneys’ fees and costs.

Digital Ally’s complaint has been substantially narrowed based on (1) the district court’s dismissal of all of Digital’s antitrust claims in January 2017, which was affirmed by the Federal Circuit in May 2018; (2) the district court’s dismissal of Digital’s ‘292 patent from the litigation with prejudice in March 2018, and Digital’s execution of a covenant not to sue Axon on that patent on all existing Axon products; and (3) Digital’s dismissal of certain inconsistent claims in the ‘452 patent, leaving only independent claim 10 for resolution by the Court. The Company believes the remaining claim of the ‘452 patent is invalid and not infringed, and is vigorously defending this litigation.

After instituting inter parte review of Digital’s ‘292 patent in June 2017, the Patent Trial and Appeal Board ("PTAB") ultimately rejected the Company’s invalidity challenge on June 1, 2018. Although this patent is no longer at issue in the litigation, the Company is appealing this ruling.

On July 19, 2018, the district court issued its claim construction ruling on three disputed claim terms in the remaining claim 10 of Digital’s ‘452 patent. This ruling now triggers various discovery and other deadlines in the litigation, including mandatory mediation. No trial date has been set, but the Court has set certain other deadlines, including mediation no later than December 3, 2018 and a pretrial conference on January 16, 2019 (where a trial date may be set).

Antoine di Zazzo Arbitration

In April 2016, the Company was served with a notice of arbitration claim filed by Antoine di Zazzo, the Company’s former distributor in France, for commissions allegedly owed Mr. di Zazzo. The arbitration claim was filed with the International Court of Arbitration of the International Chamber of Commerce in Paris, France, and the amount that is claimed in controversy is $0.6 million. The Company’s records reflect that all commissions that were due Mr. di Zazzo under his contract were paid or offered to him and the Company will vigorously defend this arbitration claim.

Richey Class Action Litigation

On June 25, 2018, consumer weapon purchaser Douglas Richey (“Richey”) filed a class action lawsuit against the Company in the Northern District of California (Case No. 3:18-cv-03751-WHA) purporting to assert claims on behalf of all persons in the United States who purchased or acquired a TASER Pulse, TASER X2 and TASER X26P model CEW in the four-year period preceding the complaint. Richey claims his Pulse CEW discharged while in its case in his jacket pocket due to a faulty safety switch. He was not injured. He alleges violation of the Magnuson-Moss Warranty Act, 15 U.S.C. § 2310(D)(1), the Song-Beverly Consumer Warranty Act for Breach of Express Warranty, Cal. Civ. Code § 1790, and California's Consumers Legal Remedies Act, as well as fraudulent omission and unjust enrichment. The Company is preparing to file a motion to dismiss the complaint, which it believes is meritless.

Appeals

Four appeals are currently pending in the Federal Circuit regarding various orders entered in the Phazzer litigation (see above). Appeal No. 17-2637 relates to the district court’s July 21, 2017 sanctions order and permanent injunction and is fully briefed. The other three appeals relating to the district court’s April 4, 2018 damages award in the Company’s favor (No. 18-1914) and its May 4, 2018 contempt order as to Phazzer (No. 18-2059) and Abboud (No. 20-1857) have been consolidated. Phazzer and Abboud’s opening briefs are due August 10, 2018.

On May 2, 2018, the Federal Circuit issued its judgment in the Company’s favor affirming the district court’s dismissal of Digital’s antitrust claims (discussed above). On July 6, 2018, Digital filed a Petition for Writ of Certiorari with the U.S. Supreme Court. The Company has waived its response believing the petition is frivolous.

Voluntary Request Letter from the U.S. Federal Trade Commission

On or about June 14, 2018, the Company received a letter from the U.S. Federal Trade Commission (“FTC”) with respect to its non-public investigation into the Company’s recent acquisition of VIEVU, LLC. See Note 15 for additional information regarding the VIEVU acquisition.  In the letter, the FTC has requested that the Company provide, on a voluntary basis, certain information and documentation relating to its acquisition of VIEVU. The Company is reviewing the letter and the information request and is cooperating with the investigation. 

General

From time to time, the Company is notified that it may be a party to a lawsuit or that a claim is being made against it. It is the Company’s policy to not disclose the specifics of any claim or threatened lawsuit until the summons and complaint are actually served on the Company. After carefully assessing the claim, and assuming the Company determines that it is not at fault or it disagrees with the damages or relief demanded, the Company vigorously defends any lawsuit filed against the Company. In certain legal matters, the Company records a liability when losses are deemed probable and reasonably estimable. In evaluating matters for accrual and disclosure purposes, the Company takes into consideration factors such as our historical experience with matters of a similar nature, the specific facts and circumstances asserted, the likelihood of our prevailing, the availability of insurance, and the severity of any potential loss. The Company reevaluates and updates accruals as matters progress over time.

Based on the Company's assessment of outstanding litigation and claims as of June 30, 2018, the Company has determined that it is not reasonably possible that these lawsuits will individually, or in the aggregate, materially affect its results of operations, financial condition or cash flows. However, the outcome of any litigation is inherently uncertain and there can be no assurance that any expense, liability or damages that may ultimately result from the resolution of these matters will be covered by its insurance or will not be in excess of amounts recognized or provided by insurance coverage and will not have a material adverse effect on our operating results, financial condition or cash flows.

Off-Balance Sheet Arrangements

Under certain circumstances, the Company uses letters of credit and surety bonds to guarantee its performance under various contracts, principally in connection with the installation and integration of its Axon cameras and related technologies. Certain of the Company's letters of credit and surety bonds have stated expiration dates with others being released as the contractual performance terms are completed. At June 30, 2018, the Company had outstanding letters of credit of $2.7 million that are expected to expire in May 2019. Additionally, the Company had $14.1 million of outstanding surety bonds at June 30, 2018, with $1.0 million expiring in 2018, $0.1 million expiring in 2020, $2.3 million expiring in 2021, $3.1 million expiring in 2022 and the remaining $7.5 million expiring in 2023.

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Related Party Transactions

6 Months Ended

Jun. 30, 2018

Related Party Transactions [Abstract]

Related Party Transactions

Related Party Transactions

The Company subscribes to various cloud-based applications from Salesforce. Bret Taylor, a member of the Company's Board of Directors, serves as President and Chief Product Officer of Salesforce. The Company incurs costs at different times throughout the year, typically in advance of services being provided, and subsequently amortizes these costs ratably to expense as services are provided over the contractual term. The Company made payments of $1.7 million related to these services during each of the three and six months ended June 30, 2018, and made payments of $0.2 million and $1.2 million during the three and six months ended June 30, 2017, respectively.

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Employee Benefit Plans

6 Months Ended

Jun. 30, 2018

Retirement Benefits [Abstract]

Employee Benefit Plans

Employee Benefit Plans

The Company has a defined contribution profit sharing 401(k) plan for eligible employees, which is qualified under Sections 401(a) and 401(k) of the Internal Revenue Code of 1986, as amended. Employees are entitled to make tax-deferred contributions of up to the maximum amount allowed by law of their eligible compensation.

The Company also has a non-qualified deferred compensation plan for certain executives, key employees and non-employee directors through which participants may elect to postpone the receipt and taxation of a portion of their compensation, including stock-based compensation, received from the Company. The non-qualified deferred compensation plan allows eligible participants to defer up to 80% of their base salary and up to 100% of other types of compensation. The plan also allows for matching and discretionary employer contributions. Employee deferrals are deemed 100% vested upon contribution. Distributions from the plan are made upon retirement, death, separation of service, specified date or upon the occurrence of an unforeseeable emergency. Distributions can be paid in a variety of forms from lump sum to installments over a period of years. Participants in the plan are entitled to select from a wide variety of investments available under the plan and are allocated gains or losses based upon the performance of the investments selected by the participant. All gains or losses are allocated fully to plan participants and the Company does not guarantee a rate of return on deferred balances. Assets related to this plan consist of corporate-owned life insurance contracts and are included in other assets in the condensed consolidated balance sheets. Participants have no rights or claims with respect to any plan assets and any such assets are subject to the claims of the Company’s general creditors.

Contributions to the plans are made by both the employee and the Company. Company contributions to the 401(k) plan are based on the level of employee contributions and are immediately vested. The Company’s matching contributions to the 401(k) plan for the three months ended June 30, 2018 and 2017, were $0.8 million and $0.6 million, respectively, and $1.6 million and $1.3 million for the six months ended June 30, 2018 and 2017, respectively. Future matching or profit sharing contributions to the plans are at the Company’s sole discretion.

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Segment Data

6 Months Ended

Jun. 30, 2018

Segment Reporting [Abstract]

Segment Data

Segment Data

The Company is comprised of two reportable segments: the manufacture and sale of CEWs, batteries, accessories, extended warranties and other products and services (the “TASER Weapons” segment); and the software and sensors business, which includes the sale of devices, wearables, applications, cloud and mobile products (collectively, the “Software and Sensors” segment). Within the Software and Sensors segment, the Company specifies sales of products and services. Revenue from the Company's “products” in the Software and Sensors segment are generally sales of sensors, including on-officer body cameras, Axon Fleet cameras, other hardware sensors, warranties on sensors,and other products, and is sometimes referred to as Sensors and Other revenue. Revenue from the Company's “services” in the Software and Sensors segment comprise sales related to the Axon Cloud, which includes Evidence.com, cloud-based evidence management software revenue, other recurring cloud-hosted software revenue and related professional services, and is sometimes referred to as Axon Cloud revenue. Within the Software and Sensors segment, the Company includes only revenues and costs attributable to that segment which include: costs of sales for both products and services, direct labor, selling expenses for the sales team, product management and R&D for products included, or to be included, within the Software and Sensors segment. All other costs are included in the TASER Weapons segment. The Company’s Chief Executive Officer, who is the CODM, is not provided asset information by segment, and therefore, no asset information is provided.

Information relative to the Company’s reportable segments was as follows (in thousands):

	Three Months Ended June 30, 2018							Three Months Ended June 30, 2017 (1)
	TASER Weapons		Software and Sensors			Total		TASER Weapons		Software and Sensors			Total
Net sales from products (2)	$	60,624	$	16,097		$	76,721	$	53,016	$	13,859		$	66,875
Net sales from services (3)	—		22,505			22,505		—		12,768			12,768
Net sales	60,624		38,602			99,226		53,016		26,627			79,643
Cost of product sales	17,681		13,406			31,087		16,078		14,094			30,172
Cost of service sales	—		4,996			4,996		—		3,834			3,834
Cost of sales	17,681		18,402			36,083		16,078		17,928			34,006
Gross margin	42,943		20,200			63,143		36,938		8,699			45,637
Sales, general and administrative	21,920		17,423			39,343		17,492		14,332			31,824
Research and development	4,019		14,482			18,501		1,863		11,126			12,989
Income (loss) from operations	$	17,004	$	(11,705	)	$	5,299	$	17,583	$	(16,759	)	$	824

	Six Months Ended June 30, 2018							Six Months Ended June 30, 2017 (1)
	TASER Weapons		Software and Sensors			Total		TASER Weapons		Software and Sensors			Total
Net sales from products (2)	$	124,148	$	33,547		$	157,695	$	110,687	$	23,679		$	134,366
Net sales from services (3)	—		42,746			42,746		—		24,519			24,519
Net sales	124,148		76,293			200,441		110,687		48,198			158,885
Cost of product sales	38,224		25,297			63,521		34,104		23,140			57,244
Cost of service sales	—		9,316			9,316		—		7,334			7,334
Cost of sales	38,224		34,613			72,837		34,104		30,474			64,578
Gross margin	85,924		41,680			127,604		76,583		17,724			94,307
Sales, general and administrative	43,185		31,917			75,102		34,708		27,973			62,681
Research and development	6,979		26,641			33,620		4,075		21,377			25,452
Income (loss) from operations	$	35,760	$	(16,878	)	$	18,882	$	37,800	$	(31,626	)	$	6,174

⁽¹⁾ Amounts for the three and six months ended June 30, 2017 have not been adjusted under the modified retrospective method of adoption of Topic 606, and are presented consistent with the prior period amounts reported under ASC 605.

⁽²⁾ Software and Sensors “products” revenue consists of sales of sensors, including on-officer body cameras, Axon Fleet cameras, other hardware sensors, warranties on sensors, and other products, and is sometimes referred to as Sensors and Other revenue.

⁽³⁾ Software and Sensors “services” revenue comprises sales related to the Axon Cloud, which includes Evidence.com, cloud-based evidence management software revenue, other recurring cloud-hosted software revenue and related professional services and is sometimes referred to as Axon Cloud revenue.

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Business Acquisitions

6 Months Ended

Jun. 30, 2018

Business Combinations [Abstract]

Business Acquisitions

Business Acquisition

On May 3, 2018, the acquisition date, the Company acquired all of the outstanding ownership interests of VIEVU, a public safety camera and cloud-based evidence management system provider for law enforcement agencies.

The estimated purchase price of $17.3 million consisted of $5.0 million in cash, net of cash acquired of $0.1 million, and $2.4 million or 58,843 shares of the Company's common stock issued to VIEVU’s parent company, Safariland, LLC (“Safariland”). Additionally, the purchase price consisted of contingent consideration of up to $6.0 million or 141,226 additional shares of common stock if certain conditions relating to retention of certain VIEVU customers are met as of the first and second anniversaries of the acquisition date. The fair value of the contingent consideration as of the acquisition date was $5.8 million. The purchase price also included the fair value of a long-term Product Development and Supplier Agreement (the “Supply Agreement”) with Safariland, pursuant to which Safariland will be the Company’s preferred provider of holsters for its CEW products. The estimated fair value of the Supply Agreement as of the acquisition date was $4.2 million, a portion of which was recorded within accrued liabilities and the remaining portion recorded within other long-term liabilities.

Pursuant to ASC 805, the acquisition of VIEVU has been accounted for as a business combination, under the acquisition method of accounting, which resulted in acquired assets and assumed liabilities being measured at their estimated fair values as of the acquisition date. As of the acquisition date, goodwill was measured as the excess of consideration transferred, which is also generally measured at fair value, over the net acquisition date fair values of the assets acquired and liabilities assumed. The final purchase price and purchase price allocation will be determined when the Company has completed the detailed valuations and necessary calculations. The final purchase price and purchase price allocation could differ materially from the preliminary allocation disclosed below. The final allocation may include (1) changes in the fair value of the contingent consideration and Supply Agreement, and (2) changes in fair values of assets and liabilities, including intangible assets and goodwill.

The major classes of assets and liabilities to which the Company has allocated the purchase price, on a preliminary basis, were as follows (in thousands):

Accounts receivable	$	1,776
Inventory	2,626
Prepaid expenses and other assets	314
Property and equipment	459
Contract assets	1,472
Intangible assets	4,500
Goodwill	9,870
Accounts payable and accrued liabilities	(3,172		)
Deferred revenue	(543		)
Total purchase price	$	17,302

The Company has assigned the goodwill to the Software and Sensors segment. Identifiable definite-lived intangible assets were assigned a total weighted average amortization period of 5.1 years. VIEVU has been included in the Company's consolidated results of operations subsequent to the acquisition date. Revenue and loss from operations included in the Company's consolidated financial statements from the acquisition date through June 30, 2018 were $2.2 million and $1.2 million, respectively. Pro forma results of operations for VIEVU have not been presented because they are not material to the consolidated results of operations. In connection with the acquisition, the Company incurred and expensed costs of approximately $0.7 million, which included legal, accounting and other third-party expenses related to the transaction. Subsequent to the acquisition date, the Company recorded an expense of $0.6 million related to purchase commitments assumed in the VIEVU business combination that exceeded estimated future demand.

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Organization and Summary of Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Use of Estimates

These unaudited condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission. Certain information related to the Company’s organization, significant accounting policies and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) has been condensed or omitted. The accounting policies followed in the preparation of these unaudited condensed consolidated financial statements are consistent with those followed in the Company’s annual consolidated financial statements for the year ended December 31, 2017, as filed on Form 10-K, with the exception of the Company's adoption of Topic 606. In the opinion of management, these unaudited condensed consolidated financial statements contain all material adjustments, consisting only of normal recurring adjustments, necessary to fairly state the Company’s financial position, results of operations and cash flows for the periods presented and the presentations and disclosures herein are adequate when read in conjunction with the Company’s Form 10-K for the year ended December 31, 2017. The results of operations for the six months ended June 30, 2018 and 2017 are not necessarily indicative of the results to be expected for the full year (or any other period). Significant estimates and assumptions in these unaudited condensed consolidated financial statements include:

• product warranty reserves,

• inventory valuation,

• revenue recognition,

• valuation of goodwill, intangible and long-lived assets,

• recognition, measurement and valuation of current and deferred income taxes,

• fair value of stock awards issued and the estimated vesting periods for performance-based stock awards,

• recognition and measurement of contingencies and accrued litigation expense, and

• fair values of identified tangible and intangible assets acquired and liabilities assumed in business combinations.

Actual results could differ materially from those estimates.

Basis of Presentation

These unaudited condensed consolidated financial statements have been prepared pursuant to the rules and regulations of the Securities and Exchange Commission. Certain information related to the Company’s organization, significant accounting policies and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States (“U.S. GAAP”) has been condensed or omitted. The accounting policies followed in the preparation of these unaudited condensed consolidated financial statements are consistent with those followed in the Company’s annual consolidated financial statements for the year ended December 31, 2017, as filed on Form 10-K, with the exception of the Company's adoption of Topic 606. In the opinion of management, these unaudited condensed consolidated financial statements contain all material adjustments, consisting only of normal recurring adjustments, necessary to fairly state the Company’s financial position, results of operations and cash flows for the periods presented and the presentations and disclosures herein are adequate when read in conjunction with the Company’s Form 10-K for the year ended December 31, 2017. The results of operations for the six months ended June 30, 2018 and 2017 are not necessarily indicative of the results to be expected for the full year (or any other period). Significant estimates and assumptions in these unaudited condensed consolidated financial statements include:

• product warranty reserves,

• inventory valuation,

• revenue recognition,

• valuation of goodwill, intangible and long-lived assets,

• recognition, measurement and valuation of current and deferred income taxes,

• fair value of stock awards issued and the estimated vesting periods for performance-based stock awards,

• recognition and measurement of contingencies and accrued litigation expense, and

• fair values of identified tangible and intangible assets acquired and liabilities assumed in business combinations.

Actual results could differ materially from those estimates.

Segment Information

The Company is comprised of two reportable segments: the manufacture and sale of CEWs, batteries, accessories, extended warranties and other products and services (the “TASER Weapons” segment); and the software and sensors business, which includes the sale of devices, wearables, applications, cloud and mobile products (collectively, the “Software and Sensors” segment). Within the Software and Sensors segment, the Company specifies sales of products and services. Revenue from the Company's “products” in the Software and Sensors segment are generally sales of sensors, including on-officer body cameras, Axon Fleet cameras, other hardware sensors, warranties on sensors, and other products, and is sometimes referred to as Sensors and Other revenue. Revenue from the Company's “services” in the Software and Sensors segment comprise sales related to the Axon Cloud, which includes Evidence.com, cloud-based evidence management software revenue, other recurring cloud-hosted software revenue and related professional services, and is sometimes referred to as Axon Cloud revenue. Within the Software and Sensors segment, the Company includes only revenues and costs attributable to that segment which include: costs of sales for both products and services, direct labor, selling expenses for the sales team, product management and research and development ("R&D") for products included, or to be included, within the Software and Sensors segment. All other costs are included in the TASER Weapons segment.

The Company’s Chief Executive Officer, who is the Chief Operating Decision Maker (the “CODM”), is not provided asset information by segment. Reportable segments are determined based on discrete financial information reviewed by the CODM for the Company. The Company organizes and reviews operations based on products and services. The Company performs an annual analysis of its reportable segments. Additional information related to the Company’s business segments is summarized in Note 14.

Geographic Information and Major Customers

For the three and six months ended June 30, 2018 and 2017, no individual country outside the U.S. represented more than 10% of total net sales. Individual sales transactions in the international market are generally larger and occur more intermittently than in the domestic market due to the profile of the Company's customers.

For the three and six months ended June 30, 2018 and 2017, no customer represented more than 10% of total net sales. At June 30, 2018 and December 31, 2017, no customer represented more than 10% of the aggregate accounts and notes receivable balance and contract assets.

Income per Common Share

Basic income per common share is computed by dividing net income by the weighted average number of common shares outstanding during the periods presented. Potentially dilutive securities include outstanding stock options and unvested restricted stock units ("RSUs"). The dilutive effect of potentially dilutive securities is reflected in diluted earnings per share by application of the treasury stock method. Under the treasury stock method, an increase in the fair market value of the Company’s common stock can result in a greater dilutive effect from potentially dilutive securities.

Standard Warranties

The Company warranties its CEWs, Axon cameras and certain related accessories from manufacturing defects on a limited basis for a period of one year after purchase and, thereafter, will replace any defective unit for a fee. Estimated costs for the standard warranty are charged to cost of products sold when revenue is recorded for the related product. Future warranty costs are estimated based on historical data related to warranty claims on a quarterly basis and this rate is applied to current product sales. Historically, reserve amounts have been increased if management becomes aware of a component failure or other issue that could result in larger than anticipated warranty claims from customers. The warranty reserve is reviewed quarterly to verify that it sufficiently reflects the remaining warranty obligations based on the anticipated expenditures over the balance of the warranty obligation period, and adjustments are made when actual warranty claim experience differs from estimates. The warranty reserve is included in accrued liabilities on the accompanying consolidated balance sheets. 

Fair Value of Financial Instruments

The Company uses the fair value framework that prioritizes the inputs to valuation techniques for measuring financial assets and liabilities measured on a recurring basis and for non-financial assets and liabilities when these items are re-measured. Fair value is considered to be the exchange price in an orderly transaction between market participants to sell an asset or transfer a liability at the measurement date. The hierarchy below lists three levels of fair value based on the extent to which inputs used in measuring fair value are observable in the market. The Company categorizes each of its fair value measurements in one of these three levels based on the lowest level input that is significant to the fair value measurement in its entirety. These levels are:

• Level 1 – Valuation techniques in which all significant inputs are unadjusted quoted prices from active markets for assets or liabilities that are identical to the assets or liabilities being measured.

• Level 2 – Valuation techniques in which significant inputs include quoted prices from active markets for assets or liabilities that are similar to the assets or liabilities being measured and/or quoted prices for assets or liabilities that are identical or similar to the assets or liabilities being measured from markets that are not active. Also, model-derived valuations in which all significant inputs and significant value drivers are observable in active markets are Level 2 valuation techniques.

• Level 3 – Valuation techniques in which one or more significant inputs or significant value drivers are unobservable. Unobservable inputs are valuation technique inputs that reflect the Company's own assumptions about inputs that market participants would use in pricing an asset or liability.

The Company has cash equivalents and investments, which at June 30, 2018 and December 31, 2017 were comprised of money market funds, state and municipal obligations, corporate bonds, and certificates of deposits. See additional disclosure regarding the fair value of the Company’s cash equivalents and investments in Note 3. Included in the balance of Other assets as of June 30, 2018 and December 31, 2017 was $3.8 million related to corporate-owned life insurance policies which are used to fund the Company’s deferred compensation plan. The Company determines the fair value of its insurance contracts by obtaining the cash surrender value of the contracts from the issuer, a Level 2 valuation technique.

The Company’s financial instruments also include accounts and notes receivable, accounts payable, notes payable and accrued liabilities. Due to the short-term nature of these instruments, their fair values approximate their carrying values on the accompanying condensed consolidated balance sheets.

Valuation of Goodwill, Intangibles and Long-lived Assets

Management evaluates whether events and circumstances have occurred that indicate the remaining estimated useful life of long-lived assets and identifiable intangible assets, excluding goodwill and intangible assets with indefinite useful lives, may warrant revision or that the remaining balance of these assets may not be recoverable. Such circumstances could include, but are not limited to, a change in the product mix, a change in the way products are created, produced or delivered, or a significant change in the way products are branded and marketed. In performing the review for recoverability, management estimates the future undiscounted cash flows expected to result from the use of the assets and their eventual disposition. The amount of the impairment loss, if impairment exists, is calculated based on the excess of the carrying amounts of the assets over their estimated fair value computed using discounted cash flows.

The Company does not amortize goodwill and intangible assets with indefinite useful lives; rather such assets are required to be tested for impairment at least annually or sooner whenever events or changes in circumstances indicate that the assets may be impaired. The Company performs its goodwill and intangible asset impairment tests in the fourth quarter of each year.

Recently Issued Accounting Guidance

In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2014-09, Revenue from Contracts with Customers (“ASU 2014-09”) and Accounting Standards Codification ("ASC") Subtopic 340-40, Other Assets and Deferred Costs - Contracts with Customers ("ASC 340-40"), (collectively, “Topic 606”). On January 1, 2018, the Company adopted Topic 606 by applying the modified retrospective method of adoption for all contracts that were not substantially completed as of the adoption date. ASU 2014-09 requires entities to recognize revenue through the application of a five-step model, which includes identification of the contract, identification of the performance obligations, determination of the transaction price, allocation of the transaction price to the performance obligations and recognition of revenue as the entity satisfies the performance obligations. Refer to Note 2 for further discussion.

In February 2016, the FASB issued ASU 2016-02, Leases (Topic 842) in order to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet for those leases classified as operating leases under existing GAAP guidance. ASU 2016-02 requires a lessee to recognize a liability to make lease payments (the lease liability) and a right-of-use asset representing its right to use the underlying asset for the lease term on the balance sheet. ASU 2016-02 is effective for the fiscal year beginning after December 15, 2018 (including interim periods within that year) using a modified retrospective approach and early adoption is permitted. The Company is currently in the process of evaluating the impact of adoption of this ASU on its consolidated financial statements, but expects that the adoption of ASU 2016-02 will have a material impact on the Company's consolidated balance sheet.

In June 2016, the FASB issued ASU 2016-13, Financial Instruments - Credit Losses, which amends ASC 326. The new guidance differs from existing GAAP guidance wherein previous standards generally delayed recognition of credit losses until the loss was probable. ASU 2016-13 eliminates the probable initial recognition threshold and, instead, reflects an entity’s current estimate of all expected credit losses. The use of forecasted information is intended to incorporate more timely information in the estimate of expected credit loss. ASU 2016-13 is effective for the fiscal year beginning after December 15, 2019, and interim periods within that fiscal year, and early adoption is permitted. The Company is currently in the process of evaluating the impact of adoption of ASU 2016-13 on its consolidated financial statements.

In August 2016, the FASB issued ASU 2016-15, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments. ASU 2016-15 eliminates the diversity in practice related to the classification of certain cash receipts and payments. ASU 2016-15 designates the appropriate cash flow classification, including requirements to allocate certain components of these cash receipts and payments among operating, investing and financing activities. The Company adopted ASU 2016-15 effective January 1, 2018, and the adoption of this ASU did not have a material impact on its consolidated financial statements.

In October 2016, the FASB issued ASU 2016-16, Income Taxes (Topic 740) - Intra-Entity Transfers of Assets Other Than Inventory. ASU 2016-16 requires an entity to recognize income tax consequences of an intra-entity transfer of an asset other than inventory when the transfer occurs. This removes the exception to postpone recognition until the asset has been sold to an outside party. The Company adopted ASU 2016-16 effective January 1, 2018, and the adoption of this ASU did not have a material impact on its consolidated financial statements.

In November 2016, the FASB issued ASU 2016-18, Statement of Cash Flows - Restricted Cash (Topic 230), which amends the existing guidance relating to the treatment of restricted cash and restricted cash equivalents on the statement of cash flows.  The Company adopted ASU 2016-18 effective January 1, 2018, and retrospectively updated the presentation of its unaudited consolidated statements of cash flows to include amounts of restricted cash with cash and cash equivalents when reconciling the beginning-of-period and end-of-period amounts. The adoption of ASU 2016-18 did not have a material impact on the Company's consolidated financial statements.

In January 2017, the FASB issued ASU 2017-01, Business Combinations (Topic 805) to provide a more robust framework to use in determining when a set of acquired assets and activities is a business. The amendments in ASU 2017-01 provide a screen to determine when a set of acquired integrated assets and activities is not a business, and if the screen is not met it may result in fewer transactions that qualify as a business combination under ASC Topic 805. The Company adopted ASU 2017-01 January 1, 2018, and the adoption of this ASU did not have a material impact on the Company's consolidated financial statements.

In May 2017, the FASB issued ASU 2017-09, Compensation - Stock Compensation (Topic 718), which provides guidance on determining which changes to the terms and conditions of share-based payment awards require an entity to apply modification accounting under Topic 718. The Company adopted ASU 2017-09 effective January 1, 2018, and the adoption of this ASU did not have a material impact on its consolidated financial statements.

Reclassification of Prior Year Presentation

Certain prior year amounts have been reclassified for consistency with the current year presentation. These reclassifications had no effect on the reported results of operations.

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Organization and Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Weighted Average Number of Shares Outstanding and Income Per Share

The calculation of the weighted average number of shares outstanding and earnings per share are as follows (in thousands except per share data):

	Three Months Ended June 30,				Six Months Ended June 30,
	2018		2017		2018		2017
Numerator for basic and diluted earnings per share:
Net income	$	8,485	$	2,276	$	21,411	$	6,856
Denominator:
Weighted average shares outstanding	55,527		52,736		54,330		52,578
Dilutive effect of stock-based awards	1,527		1,034		1,562		1,145
Diluted weighted average shares outstanding	57,054		53,770		55,892		53,723
Anti-dilutive stock-based awards excluded	3,023		544		1,533		690
Net income per common share:
Basic	$	0.15	$	0.04	$	0.39	$	0.13
Diluted	$	0.15	$	0.04	$	0.38	$	0.13

Summary of Changes in Estimated Product Warranty Liabilities

Changes in the Company’s estimated product warranty liabilities were as follows (in thousands):

	Six Months Ended June 30,
	2018			2017
Balance, beginning of period	$	644		$	780
Utilization of accrual	(149		)	(120		)
Warranty expense (recovery)	10			(96		)
Balance, end of period	$	505		$	564

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Revenues (Tables)

6 Months Ended

Jun. 30, 2018

Revenue from Contract with Customer [Abstract]

Schedule of New Accounting Pronouncements and Changes in Accounting Principles

The impacts to the December 31, 2017 balance sheet of adopting Topic 606 are presented below (in thousands):

	December 31, 2017 (As reported)		Impact of Adoption of Topic 606 on Opening Balance Sheet			January 1, 2018 (As adjusted)
Accounts and notes receivable, net	$	56,064	$	28,915		$	84,979
Contract assets, net	—		5,512			5,512
Prepaid expense and other current assets	21,696		2,003			23,699
Total impacted current assets	77,760		36,430			114,190
Deferred income tax assets, net	15,755		(5,158		)	10,597
Long-term notes receivable, net of current portion	36,877		(12,977		)	23,900
Other assets	15,366		5,323			20,689
Total impacted assets	145,758		23,618			169,376
Accrued liabilities	23,502		2,512			26,014
Current portion of deferred revenue	70,401		863			71,264
Total impacted current liabilities	93,903		3,375			97,278
Deferred revenue, net of current portion	54,881		1,249			56,130
Total impacted liabilities	148,784		4,624			153,408
Retained earnings	123,185		18,994			142,179
Total impacted stockholders' equity	123,185		18,994			142,179
Total impacted liabilities and stockholders' equity	271,969		23,618			295,587

Summary of Revenue by Product and Service Offering and Geography

The following table presents the Company's revenues by primary product and service offering (in thousands):

	Three Months Ended June 30, 2018						Three Months Ended June 30, 2017 (1)
	TASER Weapons		Software and Sensors		Total		TASER Weapons		Software and Sensors		Total
TASER X26P	$	18,146	$	—	$	18,146	$	16,235	$	—	$	16,235
TASER X2	18,362		—		18,362		16,052		—		16,052
TASER Pulse and Bolt	1,101		—		1,101		801		—		801
Single cartridges	17,243		—		17,243		14,867		—		14,867
Axon Body	—		4,780		4,780		—		3,752		3,752
Axon Flex	—		1,535		1,535		—		3,851		3,851
Axon Dock	—		2,119		2,119		—		2,783		2,783
Axon Fleet	—		2,715		2,715		—		—		—
Evidence.com and cloud services	—		20,357		20,357		—		12,756		12,756
TASER Cam	—		762		762		—		766		766
Extended warranties	3,738		2,870		6,608		2,991		1,619		4,610
Other	2,034		3,464		5,498		2,070		1,100		3,170
Total	$	60,624	$	38,602	$	99,226	$	53,016	$	26,627	$	79,643

	Six Months Ended June 30, 2018						Six Months Ended June 30, 2017 (1)
	TASER Weapons		Software and Sensors		Total		TASER Weapons		Software and Sensors		Total
TASER X26P	$	34,620	$	—	$	34,620	$	31,903	$	—	$	31,903
TASER X2	42,294		—		42,294		35,038		—		35,038
TASER Pulse and Bolt	2,447		—		2,447		1,823		—		1,823
Single cartridges	33,357		—		33,357		31,531		—		31,531
Axon Body	—		10,338		10,338		—		7,198		7,198
Axon Flex	—		3,204		3,204		—		5,326		5,326
Axon Dock	—		5,154		5,154		—		4,770		4,770
Axon Fleet	—		4,831		4,831		—		—		—
Evidence.com and cloud services	—		40,598		40,598		—		24,498		24,498
TASER Cam	—		2,122		2,122		—		1,485		1,485
Extended warranties	7,444		5,360		12,804		5,834		3,037		8,871
Other	3,986		4,686		8,672		4,558		1,884		6,442
Total	$	124,148	$	76,293	$	200,441	$	110,687	$	48,198	$	158,885

⁽¹⁾ Amounts for the three and six months ended June 30, 2017 have not been adjusted under the modified retrospective method of adoption of Topic 606, and are presented consistent with the prior period amounts reported under ASC 605.

The following table presents the Company's revenues disaggregated by geography (in thousands):

	Three Months Ended June 30,								Six Months Ended June 30,
	2018				2017 (1)				2018				2017 (1)
United States	$	78,731	79	%	$	66,200	83	%	$	156,681	78	%	$	130,952	82	%
Other countries	20,495		21		13,443		17		43,760		22		27,933		18
Total	$	99,226	100	%	$	79,643	100	%	$	200,441	100	%	$	158,885	100	%

⁽¹⁾ Amounts for the three and six months ended June 30, 2017 have not been adjusted under the modified retrospective method of adoption of Topic 606, and are presented consistent with the prior period amounts reported under ASC 605.

Contract with Customer, Assets and Liabilities

The following table presents the Company's contract assets, contract liabilities and certain information related to these balances as of and for the six months ended June 30, 2018 (in thousands):

	June 30, 2018
Contract assets (1)	$	11,021
Contract liabilities (deferred revenue)	138,039
Revenue recognized in the period from:
Amounts included in contract liabilities at the beginning of the period	43,282

⁽¹⁾ Of the $11.0 million balance of contract assets as of June 30, 2018, $0.6 million was classified as long-term and included within "Other assets" on the accompanying condensed consolidated balance sheet.

Contract liabilities (deferred revenue) consisted of the following (in thousands):

	June 30, 2018						December 31, 2017 (1)
	Current		Long-Term		Total		Current		Long-Term		Total
Warranty:
TASER Weapons	$	11,593	$	16,508	$	28,101	$	12,501	$	18,619	$	31,120
Software and Sensors	7,001		5,551		12,552		6,293		4,195		10,488
	18,594		22,059		40,653		18,794		22,814		41,608
Hardware:
TASER Weapons	6,264		14,787		21,051		4,164		11,401		15,565
Software and Sensors	15,931		15,379		31,310		16,956		14,781		31,737
	22,195		30,166		52,361		21,120		26,182		47,302
Software and Sensors Services	35,794		9,231		45,025		30,487		5,885		36,372
Total	$	76,583	$	61,456	$	138,039	$	70,401	$	54,881	$	125,282

	June 30, 2018						December 31, 2017 (1)
	Current		Long-Term		Total		Current		Long-Term		Total
TASER Weapons	$	17,857	$	31,295	$	49,152	$	16,665	$	30,020	$	46,685
Software and Sensors	58,726		30,161		88,887		53,736		24,861		78,597
Total	$	76,583	$	61,456	$	138,039	$	70,401	$	54,881	$	125,282

⁽¹⁾ Amounts as of December 31, 2017 have not been adjusted under the modified retrospective method of adoption of Topic 606, and are presented consistent with the prior period amounts reported under ASC 605.

Capitalized Contract Cost

As of June 30, 2018, the Company's assets for costs to obtain contracts were as follows (in thousands):

	June 30, 2018
Current deferred commissions (1)	$	5,941
Deferred commissions, net of current portion (2)	13,766
	$	19,707

⁽¹⁾ Current deferred commissions are included within "Prepaid expenses and other current assets" on the accompanying condensed consolidated balance sheet.

⁽²⁾ Deferred commissions, net of current portion, are included in "Other assets" on the accompanying condensed consolidated balance sheet.

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Cash, Cash Equivalents and Investments (Tables)

6 Months Ended

Jun. 30, 2018

Cash and Cash Equivalents [Abstract]

Summary of Cash, Cash Equivalents and Held-to-Maturity Investments by Type

The following tables summarize the Company's cash, cash equivalents, and held-to-maturity investments at June 30, 2018 and December 31, 2017 (in thousands):

	As of June 30, 2018
	Amortized Cost		Gross Unrealized Losses			Fair Value		Cash and Cash Equivalents		Short-Term Investments
Cash	$	47,837	$	—		$	47,837	$	47,837	$	—
Level 1:
Money market funds	256,679		—			256,679		256,679		—
Corporate bonds	4,528		(3		)	4,525		1,000		3,528
Subtotal	261,207		(3		)	261,204		257,679		3,528
Level 2:
State and municipal obligations	2,587		—			2,587		1,991		596
Total	$	311,631	$	(3	)	$	311,628	$	307,507	$	4,124

	As of December 31, 2017
	Amortized Cost		Gross Unrealized Losses			Fair Value		Cash and Cash Equivalents		Short-Term Investments
Cash	$	53,459	$	—		$	53,459	$	53,459	$	—
Level 1:
Money market funds	20,884		—			20,884		20,884		—
Corporate bonds	6,632		(6		)	6,626		—		6,632
Subtotal	27,516		(6		)	27,510		20,884		6,632
Level 2:
State and municipal obligations	992		—			992		762		230
Total	$	81,967	$	(6	)	$	81,961	$	75,105	$	6,862

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Inventory (Tables)

6 Months Ended

Jun. 30, 2018

Inventory Disclosure [Abstract]

Inventory

Inventory consisted of the following at June 30, 2018 and December 31, 2017 (in thousands):

	2018		2017
Raw materials	$	20,288	$	20,119
Finished goods	23,679		25,346
Total inventory	$	43,967	$	45,465

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Goodwill and Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2018

Goodwill and Intangible Assets Disclosure [Abstract]

Schedule of Goodwill

The changes in the carrying amount of goodwill for the six months ended June 30, 2018 were as follows (in thousands):

	TASER Weapons			Software and Sensors			Total
Balance, beginning of period	$	1,453		$	13,474		$	14,927
Goodwill acquired	—			9,870			9,870
Foreign currency translation adjustment	(56		)	(57		)	(113		)
Balance, end of period	$	1,397		$	23,287		$	24,684

Indefinite-Lived Intangible Assets Other than Goodwill

Intangible assets (other than goodwill) consisted of the following (in thousands):

		June 30, 2018							December 31, 2017
	Useful Life	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Amortized:
Domain names	5-10 years	$	3,161	$	(580	)	$	2,581	$	3,161	$	(428	)	$	2,733
Issued patents	4-15 years	2,858		(1,004		)	1,854		2,697		(913		)	1,784
Issued trademarks	3-11 years	1,010		(545		)	465		860		(397		)	463
Customer relationships	4-8 years	3,742		(616		)	3,126		1,377		(451		)	926
Non-compete agreements	3-4 years	548		(398		)	150		556		(346		)	210
Developed technology	3-7 years	15,449		(5,594		)	9,855		13,469		(3,956		)	9,513
Re-acquired distribution rights	2 years	2,023		(1,349		)	674		2,133		(711		)	1,422
Total amortized		28,791		(10,086		)	18,705		24,253		(7,202		)	17,051
Not amortized:
TASER trademark		900					900		900					900
Patents and trademarks pending		837					837		872					872
Total not amortized		1,737					1,737		1,772					1,772
Total intangible assets		$	30,528	$	(10,086	)	$	20,442	$	26,025	$	(7,202	)	$	18,823

Finite-Lived Intangible Assets Other than Goodwill

Intangible assets (other than goodwill) consisted of the following (in thousands):

		June 30, 2018							December 31, 2017
	Useful Life	Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount		Gross Carrying Amount		Accumulated Amortization			Net Carrying Amount
Amortized:
Domain names	5-10 years	$	3,161	$	(580	)	$	2,581	$	3,161	$	(428	)	$	2,733
Issued patents	4-15 years	2,858		(1,004		)	1,854		2,697		(913		)	1,784
Issued trademarks	3-11 years	1,010		(545		)	465		860		(397		)	463
Customer relationships	4-8 years	3,742		(616		)	3,126		1,377		(451		)	926
Non-compete agreements	3-4 years	548		(398		)	150		556		(346		)	210
Developed technology	3-7 years	15,449		(5,594		)	9,855		13,469		(3,956		)	9,513
Re-acquired distribution rights	2 years	2,023		(1,349		)	674		2,133		(711		)	1,422
Total amortized		28,791		(10,086		)	18,705		24,253		(7,202		)	17,051
Not amortized:
TASER trademark		900					900		900					900
Patents and trademarks pending		837					837		872					872
Total not amortized		1,737					1,737		1,772					1,772
Total intangible assets		$	30,528	$	(10,086	)	$	20,442	$	26,025	$	(7,202	)	$	18,823

Estimated Amortization Expense of Intangible Assets

Estimated amortization for intangible assets with definite lives for the remaining six months of 2018, the next five years ended December 31, and thereafter, is as follows (in thousands):

2018	$	3,179
2019	4,884
2020	3,417
2021	2,847
2022	1,192
2023	926
Thereafter	2,260
Total	$	18,705

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Other Long-Term Assets (Tables)

6 Months Ended

Jun. 30, 2018

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Schedule of Other Long-Term Assets

Other long-term assets consisted of the following at June 30, 2018 and December 31, 2017 (in thousands):

	2018		2017
Cash surrender value of corporate-owned life insurance policies	$	3,847	$	3,846
Deferred commissions (1)	13,766		6,803
Restricted cash (2)	2,470		3,333
Prepaid expenses, deposits and other	2,748		1,384
Total other long-term assets	$	22,831	$	15,366

⁽¹⁾ Represents assets for the incremental costs of obtaining a contract with a customer, which consist primarily of sales commissions. These costs are ascribed to or allocated to the underlying performance obligations in the contract and amortized consistent with the recognition timing of the revenue for the underlying performance obligations. The amounts as of December 31, 2017 have not been adjusted under the modified retrospective method of adoption of Topic 606, and are presented consistent with the prior period amounts. In connection with the Company's adoption of Topic 606, it recorded an adjustment of $7.3 million as of January 1, 2018, and of that amount, $5.4 million was recorded within long-term other assets. The adjusted balance of long-term deferred commissions as of January 1, 2018 was $12.2 million.

⁽²⁾ As of June 30, 2018 and December 31, 2017, restricted cash primarily consisted of $1.8 million and $2.7 million, respectively, of sales proceeds related to long-term contracts with customers. As of June 30, 2018, the proceeds are held in escrow until certain billing milestones are achieved, and then specified amounts are transferred to the Company's operating accounts.

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Accrued Liabilities (Tables)

6 Months Ended

Jun. 30, 2018

Payables and Accruals [Abstract]

Accrued Liabilities

Accrued liabilities consisted of the following at June 30, 2018 and December 31, 2017 (in thousands):

	2018		2017
Accrued salaries, benefits and bonus	$	12,527	$	8,957
Accrued professional, consulting and lobbying fees	2,683		3,870
Accrued warranty expense	505		644
Accrued income and other taxes	2,894		2,558
Other accrued liabilities	11,386		7,473
Accrued liabilities	$	29,995	$	23,502

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Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2018

Equity [Abstract]

Equity Compensation Goals

Eight Separate Revenue Goals (1) (in thousands)	Eight Separate Adjusted EBITDA-Goals (in thousands)
Goal #1, $710,058	Goal #9, $125,000
Goal #2, $860,058	Goal #10, $155,000
Goal #3, $1,010,058	Goal #11, $175,000
Goal #4, $1,210,058	Goal #12, $190,000
Goal #5, $1,410,058	Goal #13, $200,000
Goal #6, $1,610,058	Goal #14, $210,000
Goal #7, $1,810,058	Goal #15, $220,000
Goal #8, $2,010,058	Goal #16, $230,000

⁽¹⁾ In connection with the business combination that was completed during the three months ended June 30, 2018 (Note 15), the revenue goals have been adjusted for the acquiree's Target Revenue, as defined in the CEO Performance Award agreement.

Summary of Restricted Stock Unit Activity

The following table summarizes RSU activity for the six months ended June 30, 2018 (number of units and aggregate intrinsic value in thousands):

	Number of Units		Weighted Average Grant-Date Fair Value		Aggregate Intrinsic Value
Units outstanding, beginning of year	2,348		$	23.47
Granted	281		40.79
Released	(436	)	24.08
Forfeited	(172	)	22.40
Units outstanding, end of period	2,021		25.89		$	127,687

Summary of the Stock Option Activity

The following table summarizes stock option activity for the six months ended June 30, 2018 (number of units and aggregate intrinsic value in thousands):

	Number of Options		Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (years)	Aggregate Intrinsic Value
Options outstanding, beginning of year	804		$	4.99
Granted	6,366		28.58
Exercised	(418	)	5.30
Expired / terminated	—		—
Options outstanding, end of period	6,752		27.21		9.40	$	242,866
Options exercisable, end of period	382		4.65		1.06	22,354
Options expected to vest, end of period	1,062

Stock-Based Compensation

The following table summarizes the composition of stock-based compensation for the three and six months ended June 30, 2018 and 2017 (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2018		2017		2018		2017
Cost of products sold and services delivered	$	125	$	155	$	266	$	234
Sales, general and administrative expenses	2,731		2,155		5,035		4,183
Research and development expenses	2,098		1,666		3,746		3,006
Total stock-based compensation	$	4,954	$	3,976	$	9,047	$	7,423

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Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2018

Commitments and Contingencies Disclosure [Abstract]

Loss Contingencies

appeals are currently pending in the Federal Circuit regarding various orders entered in the Phazzer litigation (see above). Appeal No. 17-2637 relates to the district court’s July 21, 2017 sanctions order and permanent injunction and is fully briefed. The other three appeals relating to the district court’s April 4, 2018 damages award in the Company’s favor (No. 18-1914) and its May 4, 2018 contempt order as to Phazzer (No. 18-2059) and Abboud (No. 20-1857) have been consolidated. Phazzer and Abboud’s opening briefs are due August 10, 2018.

On May 2, 2018, the Federal Circuit issued its judgment in the Company’s favor affirming the district court’s dismissal of Digital’s antitrust claims (discussed above). On July 6, 2018, Digital filed a Petition for Writ of Certiorari with the U.S. Supreme Court. The Company has waived its response believing the petition is frivolous.

With respect to each of the pending lawsuits, the following table lists the name of plaintiff, the date the Company was served with process, the jurisdiction in which the case is pending, the type of claim and the status of the matter.

Plaintiff	Month Served	Jurisdiction	Claim Type	Status
Derbyshire	Nov-09	Ontario, Canada Superior Court of Justice	Officer Injury	Discovery Phase. Trial scheduled for October 14, 2019.
Shymko	Dec-10	The Queen's Bench, Winnipeg Centre, Manitoba	Wrongful Death	Pleading Phase, currently inactive
Ramsey	Jan-12	12th Judicial Circuit Court, Broward County, FL	Wrongful Death	Discovery Phase, currently inactive
Bennett	Sep-15	11th Judicial Circuit Court, Miami-Dade County, FL	Wrongful Death	Discovery Phase
Masters	Nov-16	U.S. District Court, Western District of Missouri	Suspect Injury	Discovery Phase. Trial scheduled for December 10, 2018.
Taylor	Mar-17	U.S, District Court, Southern District of Texas	Officer Injury	Dispositive Motion Phase: The Company filed its motion for summary judgment on April 20, 2018
Wiggington	Apr-18	U.S, District Court, Western District Court of Missouri	Wrongful Death	Pleading Phase

No product liability cases were dismissed or judgments entered during the first six months of 2018 and through the date of these financial statements and there are no product litigation matters in which the Company is involved that are currently on appeal.

The claims, and in some instances the defense, of each of these lawsuits have been submitted to the Company’s insurance carriers that maintained insurance coverage during the applicable periods. The Company continues to maintain product liability insurance coverage with varying limits and deductibles. The following table provides information regarding the Company’s product liability insurance. Remaining insurance coverage is based on information received from the Company’s insurance provider (in millions).

Policy Year	Policy Start Date	Policy End Date	Insurance Coverage		Deductible Amount		Defense Costs Covered	Remaining Insurance Coverage		Active Cases and Cases on Appeal
2009	12/15/2008	12/15/2009	$	10.0	$	1.0	N	$	10.0	Derbyshire
2010	12/15/2009	12/15/2010	10.0		1.0		N	10.0		Shymko
2011	12/15/2010	12/15/2011	10.0		1.0		N	10.0		n/a
Jan-Jun 2012	12/15/2011	6/25/2012	7.0		1.0		N	7.0		Ramsey
Jul-Dec 2012	6/25/2012	12/15/2012	12.0		1.0		N	12.0		n/a
2013	12/15/2012	12/15/2013	12.0		1.0		N	12.0		n/a
2014	12/15/2013	12/15/2014	11.0		4.0		N	11.0		n/a
2015	12/15/2014	12/15/2015	10.0		5.0		N	10.0		Bennett
2016	12/15/2015	12/15/2016	10.0		5.0		N	10.0		Masters
2017	12/15/2016	12/15/2017	10.0		5.0		N	10.0		Taylor
2018	12/15/2017	12/15/2018	10.0		5.0		N	10.0		Wiggington

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Segment Data (Tables)

6 Months Ended

Jun. 30, 2018

Segment Reporting [Abstract]

Summary of Operational Information Relative to the Company's Reportable Segments

Information relative to the Company’s reportable segments was as follows (in thousands):

	Three Months Ended June 30, 2018							Three Months Ended June 30, 2017 (1)
	TASER Weapons		Software and Sensors			Total		TASER Weapons		Software and Sensors			Total
Net sales from products (2)	$	60,624	$	16,097		$	76,721	$	53,016	$	13,859		$	66,875
Net sales from services (3)	—		22,505			22,505		—		12,768			12,768
Net sales	60,624		38,602			99,226		53,016		26,627			79,643
Cost of product sales	17,681		13,406			31,087		16,078		14,094			30,172
Cost of service sales	—		4,996			4,996		—		3,834			3,834
Cost of sales	17,681		18,402			36,083		16,078		17,928			34,006
Gross margin	42,943		20,200			63,143		36,938		8,699			45,637
Sales, general and administrative	21,920		17,423			39,343		17,492		14,332			31,824
Research and development	4,019		14,482			18,501		1,863		11,126			12,989
Income (loss) from operations	$	17,004	$	(11,705	)	$	5,299	$	17,583	$	(16,759	)	$	824

	Six Months Ended June 30, 2018							Six Months Ended June 30, 2017 (1)
	TASER Weapons		Software and Sensors			Total		TASER Weapons		Software and Sensors			Total
Net sales from products (2)	$	124,148	$	33,547		$	157,695	$	110,687	$	23,679		$	134,366
Net sales from services (3)	—		42,746			42,746		—		24,519			24,519
Net sales	124,148		76,293			200,441		110,687		48,198			158,885
Cost of product sales	38,224		25,297			63,521		34,104		23,140			57,244
Cost of service sales	—		9,316			9,316		—		7,334			7,334
Cost of sales	38,224		34,613			72,837		34,104		30,474			64,578
Gross margin	85,924		41,680			127,604		76,583		17,724			94,307
Sales, general and administrative	43,185		31,917			75,102		34,708		27,973			62,681
Research and development	6,979		26,641			33,620		4,075		21,377			25,452
Income (loss) from operations	$	35,760	$	(16,878	)	$	18,882	$	37,800	$	(31,626	)	$	6,174

⁽¹⁾ Amounts for the three and six months ended June 30, 2017 have not been adjusted under the modified retrospective method of adoption of Topic 606, and are presented consistent with the prior period amounts reported under ASC 605.

⁽²⁾ Software and Sensors “products” revenue consists of sales of sensors, including on-officer body cameras, Axon Fleet cameras, other hardware sensors, warranties on sensors, and other products, and is sometimes referred to as Sensors and Other revenue.

⁽³⁾ Software and Sensors “services” revenue comprises sales related to the Axon Cloud, which includes Evidence.com, cloud-based evidence management software revenue, other recurring cloud-hosted software revenue and related professional services and is sometimes referred to as Axon Cloud revenue.

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Business Acquisitions (Tables)

6 Months Ended

Jun. 30, 2018

Business Combinations [Abstract]

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed

The major classes of assets and liabilities to which the Company has allocated the purchase price, on a preliminary basis, were as follows (in thousands):

Accounts receivable	$	1,776
Inventory	2,626
Prepaid expenses and other assets	314
Property and equipment	459
Contract assets	1,472
Intangible assets	4,500
Goodwill	9,870
Accounts payable and accrued liabilities	(3,172		)
Deferred revenue	(543		)
Total purchase price	$	17,302

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Organization and Summary of Significant Accounting Policies - Additional Information (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2018 USD ($) subsidiary segment	Dec. 31, 2017 USD ($)
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of wholly owned subsidiaries | subsidiary	2
Number of reportable segments | segment	2
Warranty period	1 year
Corporate owned life insurance policies fair value | $	$ 3,800	$ 3,846

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Organization and Summary of Significant Accounting Policies - Weighted Average Number of Shares Outstanding and Income Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Numerator for basic and diluted earnings per share:
Net income	$ 8,485	$ 2,276	$ 21,411	$ 6,856
Denominator:
Weighted average shares outstanding—basic (in shares)	55,527	52,736	54,330	52,578
Dilutive effect of stock-based awards (in shares)	1,527	1,034	1,562	1,145
Diluted weighted average shares outstanding (in shares)	57,054	53,770	55,892	53,723
Anti-dilutive stock-based awards excluded (in shares)	3,023	544	1,533	690
Net income per common share:
Basic (in dollars per share)	$ 0.15	$ 0.04	$ 0.39	$ 0.13
Diluted (in dollars per share)	$ 0.15	$ 0.04	$ 0.38	$ 0.13

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Organization and Summary of Significant Accounting Policies - Summary of Changes in Estimated Product Warranty Liabilities (Detail) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Movement in Standard and Extended Product Warranty Accrual, Increase (Decrease) [Roll Forward]
Balance, beginning of period	$ 644	$ 780
Utilization of accrual	(149)	(120)
Warranty expense (recovery)	10	(96)
Balance, end of period	$ 505	$ 564

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Revenues - Additional Information (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($) source day	Jun. 30, 2017 USD ($)	Jan. 01, 2018 USD ($)	Dec. 31, 2017 USD ($)
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Retained earnings (accumulated deficit)	$ 163,590		$ 163,590		$ 142,179	$ 123,185
Revenue from contract with customers	99,226	$ 79,643	200,441	$ 158,885
Sales, general and administrative	(39,343)	(31,824)	$ (75,102)	(62,681)
Number of revenue sources | source			2
Payment due date from date of invoice | day			30
Revenue, remaining performance obligation	750,000		$ 750,000
Amortization of deferred sales commissions	1,200		2,300
Impact of Adoption of Topic 606 on Opening Balance Sheet | Accounting Standards Update 2014-09
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Retained earnings (accumulated deficit)					$ 18,994	$ 19,000
Revenue from contract with customers	600		2,300
Sales, general and administrative	900		1,600
Taser 60 Plan
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	10,200	5,300	24,200	13,300
Interest income (expense), net	$ 300	$ 200	$ 600	$ 300
Minimum
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue, remaining performance obligation to be recognized in the next twelve months, percent	15.00%		15.00%
Revenue, remaining performance obligation, expected timing of satisfaction, period			5 years
Maximum
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue, remaining performance obligation to be recognized in the next twelve months, percent	20.00%		20.00%
Revenue, remaining performance obligation, expected timing of satisfaction, period			7 years

XML

Revenues - Impact Of Adopting New Revenue Recognition Standard (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Jan. 01, 2018	Dec. 31, 2017
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Accounts and notes receivable, net	$ 94,296	$ 84,979	$ 56,064
Contract assets, net	10,468	5,512	0
Prepaid expenses and other current assets	26,604	23,699	21,696
Total current assets	486,966	114,190	205,192
Deferred income tax assets, net	15,813	10,597	15,755
Long-term notes receivable, net of current portion	37,158	23,900	36,877
Other assets	22,831	20,689	15,366
Total assets	642,397	169,376	338,112
Accrued liabilities	29,995	26,014	23,502
Current portion of deferred revenue	76,583	71,264	70,401
Total current liabilities	120,898	97,278	107,950
Deferred revenue, net of current portion	61,456	56,130	54,881
Total liabilities	193,555	153,408	170,668
Retained earnings	163,590	142,179	123,185
Total stockholders’ equity	448,842	142,179	167,444
Total liabilities and stockholders’ equity	$ 642,397	295,587	338,112
December 31, 2017 (As reported)
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Accounts and notes receivable, net			56,064
Contract assets, net			0
Prepaid expenses and other current assets			21,696
Total current assets			77,760
Deferred income tax assets, net			15,755
Long-term notes receivable, net of current portion			36,877
Other assets			15,366
Total assets			145,758
Accrued liabilities			23,502
Current portion of deferred revenue			70,401
Total current liabilities			93,903
Deferred revenue, net of current portion			54,881
Total liabilities			148,784
Retained earnings			123,185
Total stockholders’ equity			123,185
Total liabilities and stockholders’ equity			271,969
Impact of Adoption of Topic 606 on Opening Balance Sheet | Accounting Standards Update 2014-09
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Accounts and notes receivable, net		28,915
Contract assets, net		5,512
Prepaid expenses and other current assets		2,003
Total current assets		36,430
Deferred income tax assets, net		(5,158)
Long-term notes receivable, net of current portion		(12,977)
Other assets		5,323
Total assets		23,618
Accrued liabilities		2,512
Current portion of deferred revenue		863
Total current liabilities		3,375
Deferred revenue, net of current portion		1,249
Total liabilities		4,624
Retained earnings		18,994	$ 19,000
Total stockholders’ equity		18,994
Total liabilities and stockholders’ equity		$ 23,618

XML

Revenues - Revenues By Products And Service Offerings (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	$ 99,226	$ 79,643	$ 200,441	$ 158,885
TASER X26P
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	18,146	16,235	34,620	31,903
TASER X2
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	18,362	16,052	42,294	35,038
TASER Pulse and Bolt
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	1,101	801	2,447	1,823
Single cartridges
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	17,243	14,867	33,357	31,531
Axon Body
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	4,780	3,752	10,338	7,198
Axon Flex
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	1,535	3,851	3,204	5,326
Axon Dock
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	2,119	2,783	5,154	4,770
Axon Fleet
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	2,715	0	4,831	0
Evidence.com and cloud services
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	20,357	12,756	40,598	24,498
TASER Cam
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	762	766	2,122	1,485
Extended warranties
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	6,608	4,610	12,804	8,871
Other
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	5,498	3,170	8,672	6,442
TASER Weapons
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	60,624	53,016		110,687
TASER Weapons | TASER X26P
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	18,146	16,235	34,620	31,903
TASER Weapons | TASER X2
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	18,362	16,052	42,294	35,038
TASER Weapons | TASER Pulse and Bolt
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	1,101	801	2,447	1,823
TASER Weapons | Single cartridges
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	17,243	14,867	33,357	31,531
TASER Weapons | Axon Body
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	0	0	0	0
TASER Weapons | Axon Flex
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	0	0	0	0
TASER Weapons | Axon Dock
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	0	0	0	0
TASER Weapons | Axon Fleet
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	0	0	0	0
TASER Weapons | Evidence.com and cloud services
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	0	0	0	0
TASER Weapons | TASER Cam
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	0	0	0	0
TASER Weapons | Extended warranties
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	3,738	2,991	7,444	5,834
TASER Weapons | Other
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	2,034	2,070	3,986	4,558
Software and Sensors
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	38,602	26,627		48,198
Software and Sensors | TASER X26P
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	0	0	0	0
Software and Sensors | TASER X2
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	0	0	0	0
Software and Sensors | TASER Pulse and Bolt
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	0	0	0	0
Software and Sensors | Single cartridges
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	0	0	0	0
Software and Sensors | Axon Body
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	4,780	3,752	10,338	7,198
Software and Sensors | Axon Flex
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	1,535	3,851	3,204	5,326
Software and Sensors | Axon Dock
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	2,119	2,783	5,154	4,770
Software and Sensors | Axon Fleet
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	2,715	0	4,831	0
Software and Sensors | Evidence.com and cloud services
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	20,357	12,756	40,598	24,498
Software and Sensors | TASER Cam
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	762	766	2,122	1,485
Software and Sensors | Extended warranties
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	2,870	1,619	5,360	3,037
Software and Sensors | Other
Revenue, Initial Application Period Cumulative Effect Transition [Line Items]
Revenue from contract with customers	$ 3,464	$ 1,100	$ 4,686	$ 1,884

XML

Revenues - Revenues By Geographic Area (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Disaggregation of Revenue [Line Items]
Revenue from contract with customers	$ 99,226	$ 79,643	$ 200,441	$ 158,885
United States
Disaggregation of Revenue [Line Items]
Revenue from contract with customers	78,731	66,200	156,681	130,952
Other countries
Disaggregation of Revenue [Line Items]
Revenue from contract with customers	$ 20,495	$ 13,443	$ 43,760	$ 27,933
Geographic Concentration Risk | Revenue from Contract with Customer
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	100.00%	100.00%	100.00%	100.00%
Geographic Concentration Risk | Revenue from Contract with Customer | United States
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	79.00%	83.00%	78.00%	82.00%
Geographic Concentration Risk | Revenue from Contract with Customer | Other countries
Disaggregation of Revenue [Line Items]
Concentration risk, percentage	21.00%	17.00%	22.00%	18.00%

XML

Revenues - Contract Assets, Contract Liabilities (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Dec. 31, 2017
Revenue from Contract with Customer [Abstract]
Contract asset	$ 11,021
Contract liabilities (deferred revenue)	138,039	$ 125,282
Revenue recognized in the period from:
Amounts included in contract liabilities at the beginning of the period	43,282
Contract asset, long-term	$ 600

XML

Revenues - Schedule Of Contract Liabilities (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Jan. 01, 2018	Dec. 31, 2017
Disaggregation of Revenue [Line Items]
Current	$ 76,583	$ 71,264	$ 70,401
Long-Term	61,456	$ 56,130	54,881
Total	138,039		125,282
TASER Weapons
Disaggregation of Revenue [Line Items]
Current	17,857		16,665
Long-Term	31,295		30,020
Total	49,152		46,685
Software and Sensors
Disaggregation of Revenue [Line Items]
Current	58,726		53,736
Long-Term	30,161		24,861
Total	88,887		78,597
Warranty:
Disaggregation of Revenue [Line Items]
Current	18,594		18,794
Long-Term	22,059		22,814
Total	40,653		41,608
Warranty: | TASER Weapons
Disaggregation of Revenue [Line Items]
Current	11,593		12,501
Long-Term	16,508		18,619
Total	28,101		31,120
Warranty: | Software and Sensors
Disaggregation of Revenue [Line Items]
Current	7,001		6,293
Long-Term	5,551		4,195
Total	12,552		10,488
Hardware:
Disaggregation of Revenue [Line Items]
Current	22,195		21,120
Long-Term	30,166		26,182
Total	52,361		47,302
Hardware: | TASER Weapons
Disaggregation of Revenue [Line Items]
Current	6,264		4,164
Long-Term	14,787		11,401
Total	21,051		15,565
Hardware: | Software and Sensors
Disaggregation of Revenue [Line Items]
Current	15,931		16,956
Long-Term	15,379		14,781
Total	31,310		31,737
Software and Sensors Services | Software and Sensors
Disaggregation of Revenue [Line Items]
Current	35,794		30,487
Long-Term	9,231		5,885
Total	$ 45,025		$ 36,372

XML

Revenues - Costs To Obtain Contracts (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Jan. 01, 2018	Dec. 31, 2017
Revenue from Contract with Customer [Abstract]
Current deferred commissions	$ 5,941
Deferred commissions, net of current portion	13,766	$ 12,200	$ 6,803
Deferred sales commission	$ 19,707

XML

Cash, Cash Equivalents, and Investments - Summary of Cash, Cash Equivalents and Held-to-Maturity Investments by Type (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Restricted Cash and Cash Equivalents Items [Line Items]
Amortized Cost	$ 311,631	$ 81,967
Gross Unrealized Losses	(3)	(6)
Fair Value	311,628	81,961
Cash and Cash Equivalents	307,507	75,105
Short-term investments	4,124	6,862
Fair Value, Inputs, Level 1
Restricted Cash and Cash Equivalents Items [Line Items]
Amortized Cost	261,207	27,516
Gross Unrealized Losses	(3)	(6)
Fair Value	261,204	27,510
Cash and Cash Equivalents	257,679	20,884
Short-term investments	3,528	6,632
Fair Value, Inputs, Level 2 | State and municipal obligations
Restricted Cash and Cash Equivalents Items [Line Items]
Amortized Cost	2,587	992
Gross Unrealized Losses	0	0
Fair Value	2,587	992
Cash and Cash Equivalents	1,991	762
Short-term investments	596	230
Cash
Restricted Cash and Cash Equivalents Items [Line Items]
Amortized Cost	47,837	53,459
Gross Unrealized Losses	0	0
Fair Value	47,837	53,459
Cash and Cash Equivalents	47,837	53,459
Short-term investments	0	0
Money market funds | Fair Value, Inputs, Level 1
Restricted Cash and Cash Equivalents Items [Line Items]
Amortized Cost	256,679	20,884
Gross Unrealized Losses	0	0
Fair Value	256,679	20,884
Cash and Cash Equivalents	256,679	20,884
Short-term investments	0	0
Corporate bonds | Fair Value, Inputs, Level 1
Restricted Cash and Cash Equivalents Items [Line Items]
Amortized Cost	4,528	6,632
Gross Unrealized Losses	(3)	(6)
Fair Value	4,525	6,626
Cash and Cash Equivalents	1,000	0
Short-term investments	$ 3,528	$ 6,632

XML

Inventory (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Inventory Disclosure [Abstract]
Inventory, finished goods, trial and evaluation, gross	$ 1,700	$ 1,400
Raw materials	20,288	20,119
Finished goods	23,679	25,346
Total inventory	$ 43,967	$ 45,465

XML

Goodwill and Intangible Assets - Schedule of Goodwill (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2018 USD ($)
Goodwill [Roll Forward]
Balance, beginning of period	$ 14,927
Goodwill acquired	9,870
Foreign currency translation adjustment	(113)
Balance, end of period	24,684
TASER Weapons
Goodwill [Roll Forward]
Balance, beginning of period	1,453
Goodwill acquired	0
Foreign currency translation adjustment	(56)
Balance, end of period	1,397
Software and Sensors
Goodwill [Roll Forward]
Balance, beginning of period	13,474
Goodwill acquired	9,870
Foreign currency translation adjustment	(57)
Balance, end of period	$ 23,287

XML

Goodwill and Intangible Assets - Intangible Assets Other than Goodwill (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Indefinite-lived Intangible Assets [Line Items]
Not amortized intangible assets, Carrying Amount	$ 1,737		$ 1,737		$ 1,772
Finite-Lived Intangible Assets [Line Items]
Amortization of Intangible Assets	1,700	$ 1,000	3,000	$ 1,900
Amortized intangible assets, Gross Carrying Amount	28,791		28,791		24,253
Accumulated Amortization	(10,086)		(10,086)		(7,202)
Total	18,705		18,705		17,051
Intangible assets, Gross Carrying Amount	30,528		30,528		26,025
Intangible assets, Net Carrying Amount	20,442		20,442		18,823
TASER trademark
Indefinite-lived Intangible Assets [Line Items]
Not amortized intangible assets, Carrying Amount	900		900		900
Patents and trademarks pending
Indefinite-lived Intangible Assets [Line Items]
Not amortized intangible assets, Carrying Amount	837		837		872
Domain names
Finite-Lived Intangible Assets [Line Items]
Amortized intangible assets, Gross Carrying Amount	3,161		3,161		3,161
Accumulated Amortization	(580)		(580)		(428)
Total	2,581		$ 2,581		2,733
Domain names | Minimum
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life			5 years
Domain names | Maximum
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life			10 years
Issued patents
Finite-Lived Intangible Assets [Line Items]
Amortized intangible assets, Gross Carrying Amount	2,858		$ 2,858		2,697
Accumulated Amortization	(1,004)		(1,004)		(913)
Total	1,854		$ 1,854		1,784
Issued patents | Minimum
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life			4 years
Issued patents | Maximum
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life			15 years
Issued trademarks
Finite-Lived Intangible Assets [Line Items]
Amortized intangible assets, Gross Carrying Amount	1,010		$ 1,010		860
Accumulated Amortization	(545)		(545)		(397)
Total	465		$ 465		463
Issued trademarks | Minimum
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life			3 years
Issued trademarks | Maximum
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life			11 years
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Amortized intangible assets, Gross Carrying Amount	3,742		$ 3,742		1,377
Accumulated Amortization	(616)		(616)		(451)
Total	3,126		$ 3,126		926
Customer relationships | Minimum
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life			4 years
Customer relationships | Maximum
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life			8 years
Non-compete agreements
Finite-Lived Intangible Assets [Line Items]
Amortized intangible assets, Gross Carrying Amount	548		$ 548		556
Accumulated Amortization	(398)		(398)		(346)
Total	150		$ 150		210
Non-compete agreements | Minimum
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life			3 years
Non-compete agreements | Maximum
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life			4 years
Developed technology
Finite-Lived Intangible Assets [Line Items]
Amortized intangible assets, Gross Carrying Amount	15,449		$ 15,449		13,469
Accumulated Amortization	(5,594)		(5,594)		(3,956)
Total	9,855		$ 9,855		9,513
Developed technology | Minimum
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life			3 years
Developed technology | Maximum
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life			7 years
Re-acquired distribution rights
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life			2 years
Amortized intangible assets, Gross Carrying Amount	2,023		$ 2,023		2,133
Accumulated Amortization	(1,349)		(1,349)		(711)
Total	$ 674		$ 674		$ 1,422

XML

Goodwill and Intangible assets - Estimated Amortization Expense of Intangible Assets (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization of Intangible Assets	$ 1,700	$ 1,000	$ 3,000	$ 1,900
2018	3,179		3,179
2019	4,884		4,884
2020	3,417		3,417
2021	2,847		2,847
2022	1,192		1,192
2023	926		926
Thereafter	2,260		2,260
Total	$ 18,705		$ 18,705		$ 17,051

XML

Other Long-Term Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Jan. 01, 2018	Dec. 31, 2017	Jun. 30, 2017
Restricted Cash and Cash Equivalents Items [Line Items]
Cash surrender value of corporate-owned life insurance policies	$ 3,800		$ 3,846
Deferred commissions	13,766	$ 12,200	6,803
Restricted Cash	2,470		3,333	$ 3,322
Prepaid expenses, deposits and other	2,748		1,384
Total other long-term assets	22,831	20,689	15,366
Deferred sales commission	19,707
Cash Receipts Held In Escrow
Restricted Cash and Cash Equivalents Items [Line Items]
Restricted cash	$ 1,800		$ 2,700
Accounting Standards Update 2014-09 | Impact of Adoption of Topic 606 on Opening Balance Sheet
Restricted Cash and Cash Equivalents Items [Line Items]
Deferred commissions		5,400
Total other long-term assets		5,323
Deferred sales commission		$ 7,300

XML

Accrued Liabilities (Detail) - USD ($) $ in Thousands	Jun. 30, 2018	Jan. 01, 2018	Dec. 31, 2017	Jun. 30, 2017	Dec. 31, 2016
Payables and Accruals [Abstract]
Accrued salaries, benefits and bonus	$ 12,527		$ 8,957
Accrued professional, consulting and lobbying fees	2,683		3,870
Accrued warranty expense	505		644	$ 564	$ 780
Accrued income and other taxes	2,894		2,558
Other accrued liabilities	11,386		7,473
Accrued liabilities	$ 29,995	$ 26,014	$ 23,502

XML

Income Taxes - Additional Information (Detail) $ in Millions	6 Months Ended
	Jun. 30, 2018 USD ($)
Tax Credit Carryforward [Line Items]
Deferred tax assets, net	$ 15.8
Unrecognized tax benefits recognized during period	3.8
Unrecognized tax benefits	3.9
Increase in unrecognized tax benefits in next twelve months	0.2
Research and development tax credit studies	$ 2.1
Overall effective tax rate, after discrete period adjustments	(7.90%)
Effective tax rate, before discrete period adjustment	22.80%
State
Tax Credit Carryforward [Line Items]
Unrecognized tax benefits recognized during period	$ 0.1
Expiring in 2019
Tax Credit Carryforward [Line Items]
Tax credit carryforward, amount	1.2
Research and Development Credits
Tax Credit Carryforward [Line Items]
Tax credit carryforward, amount	17.0
Restricted Stock Units (RSUs)
Tax Credit Carryforward [Line Items]
Discrete tax benefit, stock-based compensation	6.1
Stock Options
Tax Credit Carryforward [Line Items]
Discrete tax benefit, stock-based compensation	$ 3.4

XML

Stockholders' Equity - Follow-On Offering - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	6 Months Ended
	May 31, 2018	Jun. 30, 2018	Jun. 30, 2017
Subsidiary, Sale of Stock [Line Items]
Sale of stock (price per share)	$ 53.00
Net proceeds from equity offering	$ 234,000	$ 233,993	$ 0
Public stock offering
Subsidiary, Sale of Stock [Line Items]
Sale of stock (in shares)	4,645,000	300,000.0
Unwritten public stock offering
Subsidiary, Sale of Stock [Line Items]
Sale of stock (in shares)	645,000
Gross proceeds from stock offering	$ 246,200

XML

Shareholders' Equity - CEO Performance Award - Additional Information (Details) $ in Thousands			6 Months Ended
	May 24, 2018 tranche shares	Feb. 26, 2018 tranche	Jun. 30, 2018 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
First tranche			$ 2,500,000
Tranche incremental increase			1,000,000
Revenue goal number 1			710,058
Revenue goal number 2			860,058
Revenue goal number 3			1,010,058
Revenue goal number 4			1,210,058
Revenue goal number 5			1,410,058
Revenue goal number 6			1,610,058
Revenue goal number 7			1,810,058
Revenue goal number 8			2,010,058
Adjusted EBITDA goal number 9			125,000
Adjusted EBITDA goal number 10			155,000
Adjusted EBITDA goal number 11			175,000
Adjusted EBITDA goal number 12			190,000
Adjusted EBITDA goal number 13			200,000
Adjusted EBITDA goal number 14			210,000
Adjusted EBITDA goal number 15			220,000
Adjusted EBITDA goal number 16			230,000
Total revenue			710,100
Adjusted EBITDA			125,000
Recorded share-based compensation expense			$ 500
Number of options, Options expected to vest, end of period (in shares) | shares			1,100,000
Weighted average period over which costs are recognized			9 years 2 months 12 days
Risk free interest rate			2.98%
Fisk free interest rate, expected term			10 years
Expected volatility rate			47.71%
Dividend yield			0.00%
Chief Executive Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of vesting tranches | tranche	12	12
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance shares authorized (in shares) | shares	6,365,856
Unrecognized share-based compensation cost related to unvested stock option awards, probable of achievement			$ 44,800
Unrecognized share-based compensation cost related to unvested stock option awards, not probable of achievement			$ 200,700

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Stockholders' Equity - Stock Incentive Plan - Additional Information (Details) - shares	1 Months Ended
	May 31, 2016	Jun. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Option available for future grants (in shares)		1,700,000
2016 Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Additional shares authorized	1,000,000.0

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Stockholders' Equity - Summary of Restricted Stock Unit Activity (Detail) - Restricted Stock $ / shares in Units, shares in Thousands, $ in Thousands	6 Months Ended
	Jun. 30, 2018 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Outstanding [Roll Forward]
Number of Units outstanding, beginning of year (in shares) | shares	2,348
Number of Units, Granted (in shares) | shares	281
Number of Units, Released (in shares) | shares	(436)
Number of Units, Forfeited (in shares) | shares	(172)
Number of Units outstanding, end of period (in shares) | shares	2,021
Share-based Compensation Arrangement by Share-based Payment Award, Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Weighted Average Grant Date Fair Value, Units outstanding, beginning of year (in dollars per share) | $ / shares	$ 23.47
Weighted Average Grant Date Fair Value, Granted (in dollars per share) | $ / shares	40.79
Weighted Average Grant Date Fair Value, Released (in dollars per share) | $ / shares	24.08
Weighted Average Grant Date Fair Value, Forfeited (in dollars per share) | $ / shares	22.40
Weighted Average Grant Date Fair Value, Units outstanding, end of period (in dollars per share) | $ / shares	$ 25.89
Aggregate intrinsic value at end of period | $	$ 127,687

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Stockholders' Equity - Restricted Stock Units - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average period over which costs are recognized	9 years 2 months 12 days
Tax payments, for net share settlement of share based award	$ 10,807	$ 2,572
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate intrinsic value price per share (in dollars per share)	$ 63.18
Shares withheld, for net share settlement of share based award	100,000
Tax payments, for net share settlement of share based award	$ 6,200
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized stock-based compensation expense related to non-vested stock options	$ 41,700
Weighted average period over which costs are recognized	2 years 6 months 29 days
Number of units, granted (in shares)	281,000
Approximate units outstanding (in shares)	2,021,000		2,348,000
Performance Based Restricted Stock Unit
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of units, granted (in shares)	86,594
Approximate units outstanding (in shares)	500,000
Maximum additional shares to be issued	400,000
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares withheld, for net share settlement of share based award	100,000
Tax payments, for net share settlement of share based award	$ 4,600

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Stockholders' Equity - Summary of the Company's Stock Options Activity (Detail) $ / shares in Units, shares in Thousands, $ in Thousands	6 Months Ended
	Jun. 30, 2018 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Number of options, Options expected to vest, end of period (in shares)	1,100
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Number of options, Options outstanding, beginning of year (in shares)	804
Number of options, Granted (in shares)	6,366
Number of options, Exercised (in shares)	(418)
Number of options, Expired / terminated (in shares)	0
Number of options, Options outstanding, end of year (in shares)	6,752
Number of options, Options exercisable, end of period (in shares)	382
Number of options, Options expected to vest, end of period (in shares)	1,062
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Weighted average exercise price, Options outstanding, beginning of year (in dollars per share) | $ / shares	$ 4.99
Weighted average exercise price, Granted (in dollars per share) | $ / shares	28.58
Weighted average exercise price, Exercised (in dollars per share) | $ / shares	5.30
Weighted average exercise price, Expired / terminated (in dollars per share) | $ / shares	0.00
Weighted average exercise price, Options outstanding, end of period (in dollars per share) | $ / shares	27.21
Weighted average exercise price, Options exercisable, end of period (in dollars per share) | $ / shares	$ 4.65
Weighted average remaining contractual life, Options outstanding, end of period	9 years 4 months 24 days
Weighted average remaining contractual life, Options exercisable, end of period	1 year 22 days
Aggregate intrinsic value, Options outstanding, end of period | $	$ 242,866
Aggregate intrinsic value, Options exercisable, end of period | $	$ 22,354

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Stockholders' Equity - Stock Option Activity - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	6 Months Ended
	May 31, 2018	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Tax payments, for net share settlement of share based award		$ 10,807	$ 2,572
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate intrinsic value price per share (in dollars per share)		$ 63.18
Total intrinsic value of options exercised		$ 18,800	$ 2,600
Number of options outstanding (in shares)		6,752,000		804,000
Shares withheld, for net share settlement of share based award		100,000
Shares surrendered to cover options exercised		29,854
Tax payments, for net share settlement of share based award		$ 6,200
Value of shares surrendered to cover options exercised		$ 1,600
Performance Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options outstanding (in shares)		6,400,000
Unvested shares, expected to vest		1,100,000
Public stock offering
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Sale of Stock, Number of Shares Issued in Transaction	4,645,000	300,000.0

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Stockholders' Equity - Reported Share-Based Compensation (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 4,954	$ 3,976	$ 9,047	$ 7,423
Cost of products sold and services delivered
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	125	155	266	234
Sales, general and administrative expenses
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	2,731	2,155	5,035	4,183
Research and development expenses
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 2,098	$ 1,666	$ 3,746	$ 3,006

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Stockholders' Equity - Stock Repurchase Plan - Additional Information (Detail) - 2016 Stock Incentive Plan - USD ($)	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Feb. 29, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Outstanding common stock repurchase program authorized amount (up to)			$ 50,000,000.0
Shares repurchased during period	0	0
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 16,300,000

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Line of Credit - Additional Information (Detail)	6 Months Ended
	Jun. 30, 2018 USD ($)	Dec. 31, 2017 USD ($)
Debt Instrument [Line Items]
Maximum ratio of total liabilities to tangible net worth	2
Trailing period used for calculating ratios	12 months
Line of Credit
Debt Instrument [Line Items]
Total availability under line of credit agreement	$ 10,000,000.0
Line of credit borrowings	0	$ 0
Letters of credit outstanding amount	2,700,000
Available borrowing under letter of credit	$ 7,300,000
Company's leverage ratio	0.002
Line of Credit | London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread plus (minus) on variable interest rate	1.25%
Line of Credit | Prime Rate
Debt Instrument [Line Items]
Basis spread plus (minus) on variable interest rate	(0.50%)

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Commitments and Contingencies - Additional Information (Detail) $ in Millions	Apr. 04, 2018 USD ($)	Jun. 30, 2018 USD ($) lawsuit	Apr. 30, 2016 USD ($)	Sep. 30, 2011 lawsuit
Loss Contingencies [Line Items]
Number of lawsuits against Company | lawsuit		7		55
Surety Bond
Loss Contingencies [Line Items]
Bonds outstanding		$ 14.1
Expiring in 2018 | Surety Bond
Loss Contingencies [Line Items]
Bonds outstanding		1.0
Expiring in 2020 | Surety Bond
Loss Contingencies [Line Items]
Bonds outstanding		0.1
Expiring in 2021 | Surety Bond
Loss Contingencies [Line Items]
Bonds outstanding		2.3
Expiring in 2022 | Surety Bond
Loss Contingencies [Line Items]
Bonds outstanding		3.1
Expiring in 2023 | Surety Bond
Loss Contingencies [Line Items]
Bonds outstanding		7.5
Line of Credit
Loss Contingencies [Line Items]
Letters of credit outstanding amount		$ 2.7
Phazzer
Loss Contingencies [Line Items]
Litigation settlement, amount awarded from other party	$ 7.8
Paris, France | International Chamber of Commerce
Loss Contingencies [Line Items]
Loss contingency, estimate of possible loss			$ 0.6

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Commitments and Contingencies - Information Regarding the Company's Insurance Coverage (Detail) $ in Millions	6 Months Ended
	Jun. 30, 2018 USD ($)
2009
Product Liability Contingency [Line Items]
Insurance Coverage	$ 10.0
Deductible Amount	1.0
Remaining Insurance Coverage	10.0
2010
Product Liability Contingency [Line Items]
Insurance Coverage	10.0
Deductible Amount	1.0
Remaining Insurance Coverage	10.0
2011
Product Liability Contingency [Line Items]
Insurance Coverage	10.0
Deductible Amount	1.0
Remaining Insurance Coverage	10.0
Jan - Jun 2012
Product Liability Contingency [Line Items]
Insurance Coverage	7.0
Deductible Amount	1.0
Remaining Insurance Coverage	7.0
Jul - Dec 2012
Product Liability Contingency [Line Items]
Insurance Coverage	12.0
Deductible Amount	1.0
Remaining Insurance Coverage	12.0
2013
Product Liability Contingency [Line Items]
Insurance Coverage	12.0
Deductible Amount	1.0
Remaining Insurance Coverage	12.0
2014
Product Liability Contingency [Line Items]
Insurance Coverage	11.0
Deductible Amount	4.0
Remaining Insurance Coverage	11.0
2015
Product Liability Contingency [Line Items]
Insurance Coverage	10.0
Deductible Amount	5.0
Remaining Insurance Coverage	10.0
2016
Product Liability Contingency [Line Items]
Insurance Coverage	10.0
Deductible Amount	5.0
Remaining Insurance Coverage	10.0
2017
Product Liability Contingency [Line Items]
Insurance Coverage	10.0
Deductible Amount	5.0
Remaining Insurance Coverage	10.0
2018
Product Liability Contingency [Line Items]
Insurance Coverage	10.0
Deductible Amount	5.0
Remaining Insurance Coverage	$ 10.0

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Related Party Transactions - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Software Licensing and Subscription | Officer
Related Party Transaction [Line Items]
Quarterly software licensing fee	$ 1.7	$ 0.2	$ 1.7	$ 1.2

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Employee Benefit Plans - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Defined Benefit Plan Disclosure [Line Items]
Employee deferrals deemed vested percentage upon contribution			100.00%
Defined contribution plan, cost	$ 0.8	$ 0.6	$ 1.6	$ 1.3
Maximum
Defined Benefit Plan Disclosure [Line Items]
Deferral percentage of base salary (up to)			80.00%
Deferral percentage of other compensation (up to)			100.00%

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Segment Data - Additional Information (Detail) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($) segment	Jun. 30, 2017 USD ($)
Segment Reporting [Abstract]
Number of reportable segments of company | segment			2
Segment Reporting Information [Line Items]
Net sales	$ 99,226	$ 79,643	$ 200,441	$ 158,885
Cost of sales	36,083	34,006	72,837	64,578
Gross margin	63,143	45,637	127,604	94,307
Sales, general and administrative	39,343	31,824	75,102	62,681
Research and development	18,501	12,989	33,620	25,452
Income from operations	5,299	824	18,882	6,174
TASER Weapons
Segment Reporting Information [Line Items]
Net sales	60,624	53,016		110,687
Software and Sensors
Segment Reporting Information [Line Items]
Net sales	38,602	26,627		48,198
Operating Segments | TASER Weapons
Segment Reporting Information [Line Items]
Net sales	60,624	53,016	124,148	110,687
Cost of sales	17,681	16,078	38,224	34,104
Gross margin	42,943	36,938	85,924	76,583
Sales, general and administrative	21,920	17,492	43,185	34,708
Research and development	4,019	1,863	6,979	4,075
Income from operations	17,004	17,583	35,760	37,800
Operating Segments | Software and Sensors
Segment Reporting Information [Line Items]
Net sales	38,602	26,627	76,293	48,198
Cost of sales	18,402	17,928	34,613	30,474
Gross margin	20,200	8,699	41,680	17,724
Sales, general and administrative	17,423	14,332	31,917	27,973
Research and development	14,482	11,126	26,641	21,377
Income from operations	(11,705)	(16,759)	(16,878)	(31,626)
Product
Segment Reporting Information [Line Items]
Net sales	76,721	66,875	157,695	134,366
Cost of sales	31,087	30,172	63,521	57,244
Product | Operating Segments | TASER Weapons
Segment Reporting Information [Line Items]
Net sales	60,624	53,016	124,148	110,687
Cost of sales	17,681	16,078	38,224	34,104
Product | Operating Segments | Software and Sensors
Segment Reporting Information [Line Items]
Net sales	16,097	13,859	33,547	23,679
Cost of sales	13,406	14,094	25,297	23,140
Service
Segment Reporting Information [Line Items]
Net sales	22,505	12,768	42,746	24,519
Cost of sales	4,996	3,834	9,316	7,334
Service | Operating Segments | TASER Weapons
Segment Reporting Information [Line Items]
Net sales	0	0	0	0
Cost of sales	0	0	0	0
Service | Operating Segments | Software and Sensors
Segment Reporting Information [Line Items]
Net sales	22,505	12,768	42,746	24,519
Cost of sales	$ 4,996	$ 3,834	$ 9,316	$ 7,334

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Business Acquisitions (Details) - VIEVU, LLC - USD ($)		6 Months Ended
	May 03, 2018	Jun. 30, 2018
Business Acquisition [Line Items]
Purchase price	$ 17,302,000
Cash consideration	5,000,000
Net of cash acquired	100,000
Stock options transferred	$ 2,400,000
Shares transferred (in shares)	58,843
Contingent consideration	$ 6,000,000.0
Contingent consideration (in shares)	141,226
Contingent consideration, fair value	$ 5,800,000
Weighted average useful life		5 years 1 month 6 days
Revenue		$ 2,200,000
(Loss) from Operations		(1,200,000)
Incurred and expensed costs		700,000
Expenses, subsequent to acquisition date		600,000
Supply Agreement
Business Acquisition [Line Items]
Fair value of intangibles		$ 4,200,000

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Business Acquisitions - Major Classes of Assets and Liabilities Acquired (Details) - USD ($) $ in Thousands	Jun. 30, 2018	May 03, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Goodwill	$ 24,684		$ 14,927
VIEVU, LLC
Business Acquisition [Line Items]
Accounts receivable		$ 1,776
Inventory		2,626
Prepaid expenses and other assets		314
Property and equipment		459
Contract assets		1,472
Intangible assets		4,500
Goodwill		9,870
Accounts payable and accrued liabilities		(3,172)
Deferred revenue		(543)
Total purchase price		$ 17,302