10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM 10-Q

(Mark One)

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

FOR THE QUARTERLY PERIOD ENDED JUNE 30, 2019

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: 001-37851

AIRGAIN, INC.

(Exact name of registrant as specified in its charter)

Delaware	95-4523882
(State or Other Jurisdiction of Incorporation or Organization)	(I.R.S. Employer Identification No.)
3611 Valley Centre Drive, Suite 150 San Diego, CA	92130
(Address of Principal Executive Offices)	(Zip Code)

(760) 579-0200

(Registrant’s Telephone Number, Including Area Code)

Securities registered pursuant to Section 12(b) of the Act:

Title of each class	Trading Symbol(s)	Name of each exchange on which registered
Common shares, par value $0.0001 per share	AIRG	Nasdaq

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 ☒  No ☐

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted 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 such files).  Yes ☒  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	☐	Accelerated filer	☒
Non-accelerated filer	☐	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 registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).  ☐ Yes  ☒  No

As of August 5, 2019, the registrant had 9,715,245 shares of Common Stock (par value $0.0001) outstanding.

AIRGAIN, INC.

Form 10-Q

For the Quarter Ended June 30, 2019

	Page
PART I. FINANCIAL INFORMATION
Item 1. Condensed Financial Statements (Unaudited)
Condensed Balance Sheets	3
Condensed Statements of Operations	4
Condensed Statements of Comprehensive Income (Loss)	5
Condensed Statements of Stockholders’ Equity	6
Condensed Statements of Cash Flows	7
Notes to Condensed Financial Statements	8
Item 2. Management’s Discussion and Analysis of Financial Condition and Results of Operations	19
Item 3. Quantitative and Qualitative Disclosures about Market Risk	26
Item 4. Controls and Procedures	26
PART II. OTHER INFORMATION
Item 1.Legal Proceedings	27
Item 1A. Risk Factors	27
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds	28
Item 3. Defaults Upon Senior Securities	28
Item 4. Mine Safety Disclosures	28
Item 5. Other Information	28
Item 6. Exhibits	29
SIGNATURES	30

PART I. FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

Airgain, Inc.

Condensed Balance Sheets

(In thousands, except share and per share data)

(Unaudited)

	June 30, 2019			December 31, 2018
Assets
Current assets:
Cash and cash equivalents	$	13,641		$	13,621
Short term investments		20,572			20,169
Trade accounts receivable		9,722			7,013
Inventory		1,095			1,351
Prepaid expenses and other current assets		1,012			931
Total current assets		46,042			43,085
Property and equipment, net		1,707			1,401
Goodwill		3,700			3,700
Customer relationships, net		3,351			3,593
Intangible assets, net		773			859
Other assets		229			269
Total assets	$	55,802		$	52,907
Liabilities and stockholders’ equity
Current liabilities:
Accounts payable	$	5,537		$	4,137
Accrued bonus		908			2,076
Accrued liabilities		1,494			1,217
Current portion of deferred rent obligation under operating lease		71			81
Total current liabilities		8,010			7,511
Deferred tax liability		30			38
Deferred rent obligation under operating lease		142			211
Total liabilities		8,182			7,760
Stockholders’ equity:
Common shares, par value $0.0001, 200,000,000 shares authorized at June 30, 2019 and December 31, 2018; 10,086,909 and 9,958,448 shares issued at June 30, 2019 and December 31, 2018, respectively, and 9,715,245 and 9,601,134 shares outstanding at June 30, 2019 and December 31, 2018, respectively		1			1
Additional paid in capital		95,228			93,583
Treasury stock, at cost: 371,664 shares and 357,314 shares at June 30, 2019 and December 31, 2018, respectively		(3,625	)		(3,432	)
Accumulated other comprehensive income (loss)		12			(11	)
Accumulated deficit		(43,996	)		(44,994	)
Total stockholders’ equity		47,620			45,147
Commitments and contingencies (note 12)
Total liabilities and stockholders’ equity	$	55,802		$	52,907

See accompanying notes.

3

Airgain, Inc.

Condensed Statements of Operations

(In thousands, except share and per share data)

(Unaudited)

	Three Months Ended June 30,						Six Months Ended June 30,
	2019			2018			2019			2018
Sales	$	14,462		$	14,972		$	29,570		$	28,277
Cost of goods sold		7,777			8,370			16,100			15,481
Gross profit		6,685			6,602			13,470			12,796
Operating expenses:
Research and development		2,203			2,418			4,541			4,688
Sales and marketing		2,229			4,095			4,503			6,979
General and administrative		1,757			3,738			3,752			5,942
Total operating expenses		6,189			10,251			12,796			17,609
Income (loss) from operations		496			(3,649	)		674			(4,813	)
Other expense (income):
Interest income		(189	)		(129	)		(377	)		(239	)
Gain on deferred purchase price liability		—			(389	)		—			(389	)
Interest expense		—			10			1			24
Total other income		(189	)		(508	)		(376	)		(604	)
Income (loss) before income taxes		685			(3,141	)		1,050			(4,209	)
Provision for income taxes		23			49			52			87
Net income (loss)	$	662		$	(3,190	)	$	998		$	(4,296	)
Net income (loss) per share:
Basic	$	0.07		$	(0.34	)	$	0.10		$	(0.45	)
Diluted	$	0.07		$	(0.34	)	$	0.10		$	(0.45	)
Weighted average shares used in calculating income (loss) per share:
Basic		9,696,876			9,439,025			9,661,474			9,459,272
Diluted		10,127,719			9,439,025			10,071,300			9,459,272

See accompanying notes.

4

Airgain, Inc.

Condensed Statements of Comprehensive Income (Loss)

(In thousands)

(Unaudited)

	Three Months Ended June 30,					Six Months Ended June 30,
	2019		2018			2019		2018
Net income (loss)	$	662	$	(3,190	)	$	998	$	(4,296	)
Unrealized gain on available-for-sale securities, net of deferred taxes		13		11			23		7
Total comprehensive income (loss)	$	675	$	(3,179	)	$	1,021	$	(4,289	)

See accompanying notes.

5

Airgain, Inc.

Condensed Statements of Stockholders’ Equity

(In thousands, except share data)

(Unaudited)

	Three Months Ended June 30,						Six Months Ended June 30,
	2019			2018			2019			2018
Total stockholders' equity, beginning balance	$	46,045		$	44,798		$	45,147		$	46,225
Common stock:
Balance at beginning of period		1			1			1			1
Stock-based compensation		—			—			—			—
Exercise of stock options		—			—			—			—
Balance at end of period		1			1			1			1
Additional paid-in capital:
Balance at beginning of period		94,328			90,370			93,583			89,907
Stock-based compensation		542			1,769			1,056			2,128
Exercise of stock options		358			196			589			300
Balance at end of period		95,228			92,335			95,228			92,335
Treasury stock:
Balance at beginning of period		(3,625	)		(2,037	)		(3,432	)		(1,257	)
Common stock repurchases		-			(543	)		(193	)		(1,323	)
Balance at end of period		(3,625	)		(2,580	)		(3,625	)		(2,580	)
Accumulated other comprehensive income (loss):
Balance at beginning of period		(1	)		(21	)		(11	)		(17	)
Unrealized gain on available-for-sale securities, net of deferred taxes		13			11			23			7
Balance at end of period		12			(10	)		12			(10	)
Accumulated deficit:
Balance at beginning of period		(44,658	)		(43,515	)		(44,994	)		(42,409	)
Net income (loss)		662			(3,190	)		998			(4,296	)
Balance at end of period		(43,996	)		(46,705	)		(43,996	)		(46,705	)
Total stockholders' equity, ending balance	$	47,620		$	43,041		$	47,620		$	43,041

See accompanying notes.

6

Airgain, Inc.

Condensed Statements of Cash Flows

(In thousands)

(Unaudited)

	Six Months Ended June 30,
	2019			2018
Cash flows from operating activities:
Net income (loss)	$	998		$	(4,296	)
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Depreciation		268			266
Amortization		328			338
Amortization of discounts on investments, net		(185	)		(53	)
Stock-based compensation		1,056			2,128
Deferred tax liability		(8	)		19
Gain on deferred purchase price liability		—			(389	)
Changes in operating assets and liabilities:
Trade accounts receivable		(2,709	)		1,201
Inventory		256			(52	)
Prepaid expenses and other assets		(41	)		(17	)
Accounts payable		1,231			132
Accrued bonus		(1,168	)		(726	)
Accrued liabilities		277			(78	)
Deferred obligation under operating lease		(79	)		(52	)
Net cash provided by (used in) operating activities		224			(1,579	)
Cash flows from investing activities:
Purchases of available-for-sale securities		(21,065	)		(12,650	)
Maturities of available-for-sale securities		20,870			15,180
Purchases of property and equipment		(405	)		(653	)
Net cash provided by (used in) investing activities		(600	)		1,877
Cash flows from financing activities:
Repayment of notes payable		—			(667	)
Payment on deferred purchase price liability		—			(375	)
Common stock repurchases		(193	)		(1,323	)
Proceeds from exercise of stock options		589			300
Net cash provided by (used in) financing activities		396			(2,065	)
Net increase (decrease) in cash and cash equivalents		20			(1,767	)
Cash and cash equivalents, beginning of period		13,621			15,026
Cash and cash equivalents, end of period	$	13,641		$	13,259
Supplemental disclosure of cash flow information:
Interest paid	$	—		$	27
Taxes paid	$	46		$	18
Supplemental disclosure of non-cash investing and financing activities:
Accrual of property and equipment	$	169		$	—

See accompanying notes.

7

Airgain, Inc.

Notes to Condensed Financial Statements

(Unaudited)

Note 1. Basis of Presentation

Business Description

Airgain, Inc. (the Company) was incorporated in the State of California on March 20, 1995 and reincorporated in the State of Delaware on August 15, 2016. The Company is a leading provider of advanced antenna technologies used to enable high performance wireless networking across a broad range of markets, including consumer, enterprise and automotive. The Company designs, develops, and engineers its antenna products for original equipment and design manufacturers worldwide. The Company’s headquarters is in San Diego, California with office space and research, design and test facilities in the United States, United Kingdom, and China.

Basis of Presentation

The accompanying unaudited condensed financial statements have been prepared in accordance with U.S. generally accepted accounting principles (GAAP) and applicable rules and regulations of the Securities and Exchange Commission (SEC) regarding interim financial reporting. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Interim financial results are not necessarily indicative of results anticipated for the full year. As such, the information included in this quarterly report on Form 10-Q should be read in conjunction with the financial statements and accompanying notes included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2018, from which the balance sheet information herein was derived.

The unaudited condensed balance sheet as of December 31, 2018 included herein was derived from the audited financial statements as of that date but does not include all disclosures including notes required by GAAP.

The unaudited condensed statements of operations for the three and six months ended June 30, 2019 and 2018, and the balance sheet data as of June 30, 2019 have been prepared on the same basis as the audited financial statements.

In the opinion of management, the accompanying unaudited condensed financial statements reflect all adjustments, consisting of normal and recurring adjustments, necessary for a fair presentation of results of the Company’s operations and financial position for the interim periods, but are not necessarily indicative of the results of operations to be anticipated for the full year ending December 31, 2019 or for any future period.   

Segment Information

The Company’s operations are located primarily in the United States, and most of its assets are located in San Diego, California and Scottsdale, Arizona. The Company operates in one segment related to the sale of antenna products. The Company’s chief operating decision-maker is its chief executive officer, who reviews operating results on an aggregate basis and manages the Company’s operations as a single operating segment.

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Significant items subject to such estimates and assumptions include valuation of intangible assets and goodwill.

Reclassifications

Certain amounts in the prior period financial statements have been reclassified to conform to the presentation of the current period financial statements

Fair Value Measurements

The carrying values of the Company’s financial instruments, including cash and cash equivalents, trade accounts receivable, accounts payable, and accrued liabilities approximate their fair values due to the short maturity of these instruments.

Fair value measurements are market-based measurements, not entity-specific measurements. Therefore, fair value measurements are determined based on the assumptions that market participants would use in pricing the asset or liability. The Company follows a three-

8

Airgain, Inc.

Notes to Condensed Financial Statements

(Unaudited)

level hierarchy to prioritize the inputs used in the valuation techniques to derive fair values. The basis for fair value measurements for each level within the hierarchy is described below:

• Level 1: Quoted prices in active markets for identical assets or liabilities.

• Level 2: Quoted prices for similar assets or liabilities in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations in which all significant inputs are observable in active markets.

• Level 3: Valuations derived from valuation techniques in which one or more significant inputs are unobservable in active markets.

Cash Equivalents and Short-Term Investments

Cash equivalents are comprised of short-term, highly liquid investments with maturities of 90 days or less at the date of purchase.  

Short-term investments consist predominantly of commercial paper, corporate debt securities, U.S. Treasury securities and asset backed securities.  The Company classifies short-term investments based on the facts and circumstances surrounding the investments at the time of purchase and evaluates such classification as of each balance sheet date.  All short-term investments are classified as available-for-sale securities as of June 30, 2019 and are recorded at estimated fair value.  Unrealized gains and losses for available-for-sale securities are included in accumulated other comprehensive income (loss), a component of stockholders’ equity.  Realized gains and losses are included in other income, in the unaudited condensed statements of operations.  The Company evaluates its investments to determine whether those with unrealized loss positions are other than temporarily impaired.  Impairments are considered to be other than temporary if they are related to deterioration in credit risk or if it is likely that the Company will sell the securities before recovery of their cost basis.

Inventory

The majority of the Company’s products are manufactured by third parties that retain ownership of the inventory until title is transferred to the customer at the shipping point.  In certain instances, shipping terms are delivery at place and the Company is responsible for arranging transportation and delivery of goods ready for unloading at the named place.  The Company bears all risk involved in bringing the goods to the named place and records the related inventory in transit to the customer as inventory on the accompanying balance sheet. The Company also manufactures certain of its products at its facility located in Scottsdale, Arizona.

Inventory is stated at the lower of cost or net realizable value.  For items manufactured by the Company, cost is determined using the weighted average cost method.  For items manufactured by third parties, cost is determined using the first-in, first-out (FIFO) method.  Any adjustments to reduce the cost of inventories to their net realizable value are recognized in earnings in the current period.  As of June 30, 2019, the Company’s inventories consist primarily of raw materials.  Provisions for excess and obsolete inventories are estimated based on product life cycles, quality issues, and historical experience.  As of June 30, 2019, there is no provision for excess and obsolete inventories.

Accumulated Other Comprehensive Income (Loss)

Comprehensive income (loss) is comprised of net income (loss) and other comprehensive income (loss).  Accumulated other comprehensive income (loss) on the unaudited condensed balance sheet at June 30, 2019 includes unrealized gains and losses on the Company’s available-for-sale securities.  

Note 2. Summary of Significant Accounting Policies

During the three and six months ended June 30, 2019, there have been no material changes to the Company’s significant accounting policies as described in the Annual Report on Form 10-K for the fiscal year ended December 31, 2018.  

9

Airgain, Inc.

Notes to Condensed Financial Statements

(Unaudited)

Recent Accounting Pronouncements

In August 2018, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2018-15, Intangibles – Goodwill and Other – Internal-Use Software, which aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. The Company adopted this pronouncement during the year ended December 31, 2018 on a prospective basis.  The impact on the financial statements are immaterial.

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods and services to customers.  The standard will replace most existing revenue recognition guidance in GAAP when it becomes effective.  ASU 2014-09 is effective for annual reporting periods beginning after December 15, 2018, and interim periods in fiscal years beginning after December 15, 2019. The Company will adopt the new guidance for the annual period ended December 31, 2019, using the modified retrospective approach. The Company is in the process of finalizing the new accounting policies, processes, and internal controls necessary to support the requirements of Topic 606 and is still evaluating the full impact the standard will have on its financial reporting.

In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842), which requires lessees to recognize most leases on their balance sheets as lease liabilities with corresponding right-of-use assets. ASU 2016-02 is effective for fiscal years beginning after December 15, 2019 and interim periods within fiscal years beginning after December 15, 2020.  The Company is evaluating the effect that ASU 2016-02 will have on its financial statements and related disclosures.  The Company has not yet selected a transition method, nor has it determined the effect of the standard on its ongoing financial reporting.

In January 2017, the FASB issued ASU No. 2017-04, Simplifying the Test for Goodwill Impairment, which simplifies the test for goodwill impairment by removing Step 2 which requires a hypothetical purchase price allocation and may require the services of valuation experts. An entity will, therefore, perform the goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount, recognizing an impairment charge for the amount by which the carrying amount exceeds the fair value, not to exceed the total amount of goodwill allocated to the reporting unit. An entity still has the option to perform a qualitative assessment to determine if the quantitative impairment test is necessary. ASU 2017-04 will be effective for the Company in annual periods beginning after December 15, 2020, and interim periods within fiscal years beginning after December 15, 2021, with early adoption permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. The Company has not yet determined whether it will early adopt ASU 2017-04 and is evaluating the impact the standard will have on its ongoing financial reporting.

In June 2016, the FASB issued ASU 2016-13, Financial Instruments-Credit Losses (Topic 326), Measurement of Credit Losses on Financial Instruments. This standard changes the methodology for measuring credit losses on financial instruments and the timing of when such losses are recorded. ASU 2016-13 is effective for fiscal years beginning after December 15, 2020, and interim periods within the fiscal year beginning after December 15, 2021, using a modified retrospective adoption method. The Company continues to evaluate the impact of the standard on its consolidated financial statements.

In May 2019, the FASB issued ASU 2019-05, Financial Instruments-Credit Losses (Topic 326), Targeted Transition Relief, which provides entities that have certain instruments within the scope of ASC 326-20, Financial Instruments-Credit Losses-Measured at Amortized Cost, with an option to irrevocably elect the fair value option for eligible instruments. The effective date and transition methodology for this standard are the same as in ASU 2016-13.

Note 3. Net Income (Loss) Per Share

Basic net income (loss) per share is calculated by dividing net income (loss) by the weighted average shares of common stock outstanding for the period. Diluted net income (loss) per share is calculated by dividing net income (loss) by the weighted average shares of common stock outstanding for the period plus amounts representing the dilutive effect of securities that are convertible into common stock. The Company calculates diluted income (loss) per common share using the treasury stock method and the as-if-converted method, as applicable.

10

Airgain, Inc.

Notes to Condensed Financial Statements

(Unaudited)

The following table presents the computation of net income (loss) per share:

	Three Months Ended June 30,					Six Months Ended June 30,
	2019		2018			2019		2018
Numerator:
Net income (loss) (in thousands)	$	662	$	(3,190	)	$	998	$	(4,296	)
Denominator:
Weighted average common shares outstanding - basic		9,696,876		9,439,025			9,661,474		9,459,272
Plus dilutive effect of potential common shares		430,843		—			409,826		—
Weighted average common shares outstanding - diluted		10,127,719		9,439,025			10,071,300		9,459,272
Net income (loss) per share:
Basic	$	0.07	$	(0.34	)	$	0.10	$	(0.45	)
Diluted	$	0.07	$	(0.34	)	$	0.10	$	(0.45	)

Diluted weighted average common shares outstanding for the three months ended June 30, 2019 includes 8,528 warrants and 422,315 options outstanding. Diluted weighted average common shares outstanding for the six months ended June 30, 2019 includes 4,614 warrants and 405,212 options outstanding.

Potentially dilutive securities not included in the calculation of diluted net income (loss) per share because to do so would be anti-dilutive are as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
	2019		2018		2019		2018
Employee stock options		67,104		1,152,520		257,981		1,349,833
Warrants outstanding		—		51,003		—		51,003
Total		67,104		1,203,523		257,981		1,400,836

Note 4. Cash, Cash Equivalents and Short-Term Investments

The following tables show the Company’s cash and cash equivalents and short-term investments by significant investment category as of June 30, 2019 and December 31, 2018 (in thousands):

	June 30, 2019
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value		Cash and Cash Equivalents		Short-Term Investments
Cash	$	2,564	$	—	$	—	$	2,564	$	2,564	$	—
Level 1 (1):
Money market funds		6,528		—		—		6,528		6,528		—
U.S. treasury securities		4,990		6		—		4,996		—		4,996
Subtotal		11,518		6		—		11,524		6,528		4,996
Level 2 (2):
Commercial paper		9,678		—		—		9,678		1,548		8,130
Corporate debt obligations		3,038		4		—		3,042		—		3,042
Repurchase agreements		3,001		—		—		3,001		3,001		—
Asset-backed securities		4,401		3		—		4,404		—		4,404
Subtotal		20,118		7		—		20,125		4,549		15,576
Total	$	34,200	$	13		—	$	34,213	$	13,641	$	20,572

11

Airgain, Inc.

Notes to Condensed Financial Statements

(Unaudited)

	December 31, 2018
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value		Cash and Cash Equivalents		Short-Term Investments
Cash	$	3,044	$	—	$	—		$	3,044	$	3,044	$	—
Level 1 (1):
Money market funds		5,482		—		—			5,482		5,482		—
U.S. treasury securities		1,988		—		—			1,988		—		1,988
Subtotal		7,470		—		—			7,470		5,482		1,988
Level 2 (2):
Commercial paper		10,639		—		—			10,639		2,095		8,544
Corporate debt obligations		5,964		—		(7	)		5,957		—		5,957
Repurchase agreements		3,000		—		—			3,000		3,000		—
Asset-backed securities		3,682		—		(2	)		3,680		—		3,680
Subtotal		23,285		—		(9	)		23,276		5,095		18,181
Total	$	33,799		—	$	(9	)	$	33,790	$	13,621	$	20,169

⁽¹⁾ Level 1 fair value estimates are based on quoted prices in active markets for identical assets or liabilities.

⁽²⁾ Level 2 fair value estimates are based on observable inputs other than quoted prices in active markets for identical assets and liabilities, quoted prices for identical or similar assets or liabilities in inactive markets, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.  

The Company’s investments were primarily valued based upon one or more valuations reported by its investment accounting and reporting service provider.  The investment service provider values the securities using a hierarchical security pricing model that relies primarily on valuations provided by a third-party pricing vendor.  Such valuations may be based on trade prices in active markets for identical assets or liabilities (Level 1 inputs) or valuation models using inputs that are observable either directly or indirectly (Level 2 inputs), such as quoted prices for similar assets or liabilities, yield curve, volatility factors, credit spreads, default rates, loss severity, current market and contractual prices for underlying instruments or debt, broker and dealer quotes, as well as other relevant economic measures.  The Company performs certain procedures to corroborate the fair value of its holdings, including comparing valuations obtained from its investment service provider with other pricing sources to validate the reasonableness of the valuations.    

The Company typically invests in highly rated securities, and its investment policy limits the amount of credit exposure to any one issuer.  The policy requires investments in fixed income instruments denominated and payable in U.S. dollars only and requires investments to be investment grade, with a primary objective of minimizing the potential risk of principal loss.  

The Company considers the declines in market value of its short-term investments to be temporary in nature.  Fair values were determined for each individual security in the investment portfolio.  When evaluating an investment for other-than-temporary impairment, the Company reviews factors such as length of time and extent to which fair value has been below its cost basis, the financial condition of the issuer and any changes thereto, changes in market interest rates and the Company’s intent to sell, or whether it is more likely than not it will be required to sell the investment before recovery of the investment’s cost basis.  As of June 30, 2019, the Company does not consider any of its investments to be other-than temporarily impaired.

Contractual maturities of short-term investments as of June 30, 2019 are as follows (in thousands):

	Estimated Fair Value
Due within one year	$	20,572

Note 5. Property and Equipment

Depreciation and amortization of property and equipment is calculated on the straight-line method based on estimated useful lives of six to ten years for tenant improvements and three to fifteen years for all other property and equipment.  Property and equipment consist of the following (in thousands):

12

Airgain, Inc.

Notes to Condensed Financial Statements

(Unaudited)

	June 30, 2019			December 31, 2018
Lab equipment	$	2,953		$	2,503
Computer equipment		172			113
Computer software		240			194
Furniture and fixtures		281			267
Tenant improvements		900			895
Other office equipment		126			126
		4,672			4,098
Less accumulated depreciation		(2,965	)		(2,697	)
	$	1,707		$	1,401

Depreciation expense was $91,000 and $145,000 for the three months ended June 30, 2019 and 2018, respectively, and $268,000 and $266,000 for the six months ended June 30, 2019 and 2018, respectively.

Note 6. Intangible Assets

The following is a summary of the Company’s acquired intangible assets (dollars in thousands):

	Weighted Average Amortization Period (years)		Gross Carrying Amount		Accumulated Amortization		Intangibles, Net
June 30, 2019
Customer relationships		10	$	4,830	$	1,479	$	3,351
Developed technologies		9		1,080		341		739
Tradename		3		120		86		34
Total intangible assets, net			$	6,030	$	1,906	$	4,124
December 31, 2018
Customer relationships		10	$	4,830	$	1,237	$	3,593
Developed technologies		9		1,080		274		806
Tradename		3		120		67		53
Total intangible assets, net			$	6,030	$	1,578	$	4,452

The estimated annual amortization of intangible assets for the next five years and thereafter is shown in the following table (in thousands):

	Estimated Future Amortization
2019 (remaining six months)	$	(328	)
2020		(628	)
2021		(598	)
2022		(563	)
2023		(563	)
Thereafter		(1,444	)
Total	$	(4,124	)

Actual amortization expense to be reported in future periods could differ from these estimates as a result of acquisitions, divestitures, asset impairments, among other factors. Amortization expense was $164,000 and $169,000 for the three months ended June 30, 2019 and 2018, respectively, and $328,000 and $338,000 for the six months ended June 30, 2019 and 2018, respectively.

13

Airgain, Inc.

Notes to Condensed Financial Statements

(Unaudited)

Note 7. Notes Payable and Line of Credit

In December 2015 the Company amended its amended and restated loan and security agreement with Silicon Valley Bank to include a term loan in the amount of $4.0 million. The loan requires 36 monthly installments of interest and principal. The loan matured on December 1, 2018, The interest rate was fixed at 5.0%.  

In January 2018 the Company entered into a second amended and restated loan and security agreement (the Amended Loan Agreement) with Silicon Valley Bank.  The Amended Loan Agreement modified the amended and restated loan and security agreement to, among other things, increase the aggregate principal amount available under the revolving line of credit from $3.0 million to $10.0 million. It also removed a minimum EBITDA requirement previously applicable to the line of credit and former term loan and maintained the liquidity ratio financial covenant such that the Company must maintain a ratio of cash and cash equivalents plus accounts receivable to outstanding debt under the Amended Loan Agreement minus deferred revenue of 1.25 to 1.00. The Amended Loan Agreement also set a borrowing base limit of 80% of the aggregate face amount of all eligible receivables. No balance was owed on the line of credit as of June 30, 2019 and December 31, 2018.

The Company will be required to pay interest on borrowings outstanding, if any, under the revolving line of credit at a floating rate per annum equal to 1% above the Wall Street Journal prime rate (5.5% as of June 30, 2019) (or, if unavailable, the Silicon Valley Bank prime rate) on a monthly basis, so long as the Company maintains a liquidity ratio of cash and cash equivalents plus accounts receivable to outstanding debt under the Amended Loan Agreement minus deferred revenue of 1.25 to 1.00.  If this liquidity ratio is not met, the Company will be subject to a minimum interest charge of $3,000 per month and borrowings outstanding, if any, under the revolving line of credit will accrue interest at a floating rate per annum equal to 2% above the Wall Street Journal prime rate (5.5% as of June 30, 2019) (or, if unavailable the Silicon Valley Bank prime rate) on a monthly basis.  Prior to the amendment in January 2018, the revolving line of credit bore interest rate at the U.S. prime rate plus 1.25%.  The revolving line of credit matures on January 31, 2020.    

Silicon Valley Bank maintains a first security interest over the Company’s assets, excluding intellectual property, for which Silicon Valley Bank has received a negative pledge.  The Amended Loan Agreement contains customary affirmative and negative covenants and events of default applicable to the Company and any of its subsidiaries.    

The Company was in compliance with its financial covenants in the Amended Loan Agreement as of June 30, 2019.

Note 8. Treasury Stock

In August 2017, the Company’s Board of Directors (the Board) approved a share repurchase program pursuant to which the Company may purchase up to $7.0 million of shares of its common stock over the twelve-month period following the establishment of the program.  The repurchases under the share repurchase program are made from time to time in the open market or in privately negotiated transactions and are funded from the Company’s working capital. Repurchases will be made in compliance with Rule 10b-18 of the Securities Exchange Act of 1934, as amended, subject to market conditions, available liquidity, cash flow, applicable legal requirements and other factors.  All shares of common stock repurchased under the Company’s share repurchase program will be returned to the status of authorized but unissued shares of common stock.  On August 7, 2018, the Board approved an extension to the existing share repurchase program for an additional twelve-month period ending August 14, 2019.

During the three and six months ended June 30, 2019, the Company repurchased 0 and 14,350 shares of common stock, respectively, under the share repurchase program.  These shares were repurchased at an average price per share of $13.44 per share, for a total cost of $193,000.  As of June 30, 2019, the Company has repurchased a total of $3.6 million in common stock under the share repurchase program.     

Note 9. Income Taxes

The Company’s effective income tax rate was 4.97% and (2.08)% for the six months ended June 30, 2019 and 2018, respectively. The variance from the U.S. federal statutory tax rate of 21% for each of the six months ended June 30, 2019 and 2018 was primarily attributable to the utilization of deferred tax attributes that had a full valuation allowance.    

Management assesses its deferred tax assets quarterly to determine whether all or any portion of the asset is more likely than not unrealizable under Accounting Standards Codification (ASC) Topic 740.  The Company is required to establish a valuation allowance

14

Airgain, Inc.

Notes to Condensed Financial Statements

(Unaudited)

for any portion of the asset that management concludes is more likely than not to be unrealizable.  The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible.  The Company’s assessment considers all evidence, both positive and negative, including the nature, frequency and severity of any current and cumulative losses, taxable income in carryback years, the scheduled reversal of deferred tax liabilities, tax planning strategies, and projected future taxable income in making this assessment.  At June 30, 2019 and December 31, 2018, the Company has a valuation allowance against net deferred tax assets but for the exclusion of a deferred tax liability generated by goodwill (an indefinite lived intangible) that may not be considered a future source of taxable income in evaluating the need for a valuation allowance.

Note 10. Stockholders’ Equity

Shares Reserved for Future Issuance

The following common stock is reserved for future issuance at⁽¹⁾:

	June 30, 2019			December31, 2018
Warrants issued and outstanding		51,003			51,003
Stock option awards issued and outstanding		1,553,169			1,407,049
Authorized for grants under the 2016 Equity Incentive Plan		477,477	(2)		463,491
Authorized for grants under the 2016 Employee Stock Purchase Plan		196,011	(3)		100,000
		2,277,660			2,021,543

⁽¹⁾ Treasury stock in the amount of 371,664 and 357,314 as of June 30, 2019 and December 31, 2018, respectively, are excluded from the table above.

⁽²⁾ On January 1, 2019, the number of authorized shares in the 2016 Equity Incentive Plan increased by 384,045 shares pursuant to the evergreen provisions of the 2016 Equity Incentive Plan.

⁽³⁾ On January 1, 2019, the number of authorized shares in the 2016 Employee Stock Purchase Plan increased by 96,011 shares pursuant to the evergreen provisions of the 2016 Employee Stock Purchase Plan.

The Company maintains the Employee Stock Purchase Plan (ESPP) that provides employees an opportunity to purchase common stock through payroll deductions. The ESPP is implemented through consecutive 6-month offering periods commencing on March 1 and September 1 of each year. The first offering period under the ESPP commenced on March 1, 2019.  The purchase price is set at 85% of the fair market value of the Company's common stock on either the first or last trading day of the offering period, whichever is lower, and annual contributions are limited to the lower of 20% of an employee's eligible compensation or such other limits as apply under Section 423 of the Internal Revenue Code for such plans such as the ESPP. The ESPP is intended to qualify as an employee stock purchase plan for purposes of Section 423 of the Internal Revenue Code.

Note 11. Stock Options

The following table summarizes the outstanding stock option activity during the periods indicated:

				Weighted average
	Number of shares			Exercise price		Remaining contractual term (years)
Balance at December 31, 2018		1,407,049		$	8.73
Granted		395,485			11.39
Exercised		(128,461	)		4.58
Expired/Forfeited		(120,904	)		10.89
Balance at June 30, 2019		1,553,169		$	9.58		8.1
Vested and exercisable at June 30, 2019		701,862		$	8.19		7.1
Vested and expected to vest at June 30, 2019		1,553,169		$	9.58		8.1

The weighted average grant date fair value of options granted during the six months ended June 30, 2019 and for the year ended December 31, 2018 was $4.00 and $3.97, respectively. For fully vested stock options, the aggregate intrinsic value as of June 30, 2019

15

Airgain, Inc.

Notes to Condensed Financial Statements

(Unaudited)

and December 31, 2018 was $4,293,000 and $2,485,000, respectively. For stock options expected to vest, the aggregate intrinsic value as of June 30, 2019 and December 31, 2018 was $2,994,000 and $993,000, respectively.

At June 30, 2019 and December 31, 2018, there was $3,255,000 and $2,781,000, respectively, of total unrecognized compensation cost related to unvested stock options granted under the Company’s equity plans. That cost is expected to be recognized over the next three years and is based on the date the options were granted.

During the six months ended June 30, 2019, the Company granted 95,478 Restricted Stock Units (RSUs) at a weighted average grant date fair value of $11.35 per share. No RSUs vested during the three and six months ended June 30, 2019. As of June 30, 2019, the Company has 96,605 RSUs outstanding at a weighted average grant date fair value of $11.42 per share and a weighted average remaining contractual term of 2.1 years. As of June 30, 2019, there was $986,000 of total unrecognized compensation cost related to unvested RSUs.

The Company currently uses authorized and unissued shares to satisfy share award exercises.

Note 12. Commitments and Contingencies

(a) Operating Leases

The Company has entered into lease agreements for office space and research facilities in San Diego County, California; Melbourne, Florida; Scottsdale, Arizona; Taipei, Taiwan; Shenzhen and Jiangsu, China; and Cambridgeshire, United Kingdom. Rent expense was $255,000 and $234,000 for the three months ended June 30, 2019 and 2018, respectively, and $490,000 and $467,000 for the six months ended June 30, 2019 and 2018, respectively. The longest lease expires in June 2024. The Company moved into its facility in San Diego, California during the year ended December 31, 2014. The San Diego facility lease agreement included a tenant improvement allowance which provided for the landlord to pay for tenant improvements on behalf of the Company up to $515,000. Based on the terms of this landlord incentive and involvement of the Company in the construction process, the leasehold improvements purchased under the landlord incentive were determined to be property of the Company.

The future minimum lease payments required under operating leases in effect at June 30, 2019 were as follows (in thousands):

Year ending:
2019 (remaining six months)	$	539
2020		772
2021		339
2022		104
2023		72
2024		33
	$	1,859

(b) Indemnification

In some agreements to which the Company is a party, the Company has agreed to indemnify the other party for certain matters, including, but not limited to, product liability and intellectual property. To date, there have been no known events or circumstances that have resulted in any material costs related to these indemnification provisions and no liabilities have been recorded in the accompanying financial statements.

16

Airgain, Inc.

Notes to Condensed Financial Statements

(Unaudited)

Note 13. Concentration of Credit Risk

(a) Concentration of Sales and Accounts Receivable

The following represents customers that accounted for 10% or more of total revenue during the three and six months ended June 30, 2019 and 2018 and customers that accounted for 10% or more of total trade accounts receivable at June 30, 2019 and 2018.  

	Three Months Ended June 30,				Six Months Ended June 30,
	2019		2018		2019		2018
Percentage of net revenue
Customer A	37%		37%		39%		34%
Customer B		15		7		12		7
Customer C		10		10		6		7
	As of June 30,
	2019		2018
Percentage of gross trade accounts receivable
Customer A	44%		21%
Customer B		15		6
Customer C		8		19

(b) Revenue by Geography

Net revenue by geographic area are as follows. Revenue is attributed by geographic location based on the bill-to location of the Company’s customers.

	Three Months Ended June 30,				Six Months Ended June 30,
	2019		2018		2019		2018
Percentage of net revenue
China	75%		76%		73%		70%
Other Asia		3		4		5		6
North America		20		15		19		18
Europe		2		5		3		6

Although the Company ships the majority of antennas to its customers in China (primarily Original Design Manufacturers and distributors), the end-users of the Company’s products are much more geographically diverse.

(c) Concentration of Purchases

During the three and six months ended June 30, 2019, primarily all of the Company’s products were manufactured by two vendors in China and by the Company’s facilities in Arizona.

Note 14. Termination Costs

On June 30, 2018, the Company terminated a marketing-related agreement to better align its sales and marketing efforts with its longer-term growth objectives and near-to-intermediate term profitability goals.  In consideration of terminating the agreement, the Company paid $1.3 million in termination costs.  The termination costs were included in sales and marketing expense on the unaudited condensed statements of operations for the three and six months ended June 30, 2018.  

On May 2, 2018, Charles Myers, the Company’s Chief Executive Officer, President and member of the Board resigned from all positions with the Company, effective immediately, to pursue other opportunities.  The Board accepted Mr. Myers resignation on May 2, 2018.  Mr. Myer’s decision to resign was not related to a disagreement with the Company over any of its operations, policies, or practices.  

In connection with his resignation, Mr. Myers, upon a general release of claims as set forth in his employment agreement, received a lump sum cash payment in the amount of $484,000; a lump sum cash payment in the amount of $3,200 covering twelve months of monthly premiums for disability insurance under the Company’s disability insurance plan; a lump sum cash payment in the amount of

17

Airgain, Inc.

Notes to Condensed Financial Statements

(Unaudited)

$20,000 covering certain other employment benefits; the acceleration of all his unvested options for a total of 282,994 shares and the continuation of his health coverage pursuant to COBRA at the Company’s expense for a period of twelve months following his last day of employment.  In connection with Mr. Myers’ resignation, the Company recognized stock compensation expense of $1.2 million for the three months ended June 30, 2018.  Mr. Myer’s costs were included in general and administrative expense on the unaudited condensed statements of operations for the three and six months ended June 30, 2018. As of June 30, 2019, there were no further amounts owed to Mr.Myers.

On April 2, 2018, Glenn Selbo, the Company’s Chief Operating Officer, resigned from his position with the Company.  Following his resignation, Mr. Selbo began providing consulting services to the Company.  Mr. Selbo’s outstanding stock options continue to vest during the term of his consulting services.  

In connection with his resignation, Mr. Selbo, upon a general release of claims as set forth in his employment agreement, received a lump sum cash payment in the amount of $150,000 and the continuation of his health coverage pursuant to COBRA at the Company’s expense for a period of six months following his last day of employment. Mr. Selbo’s costs were included in sales and marketing expense on the unaudited condensed statements of operations for the three and six months ended June 30, 2018.  As of June 30, 2019, there are no further amounts owed to Mr. Selbo.

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ITEM 2.MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

The following discussion and analysis and the interim unaudited condensed financial statements included in this quarterly report on Form 10-Q should be read in conjunction with the financial statements and notes thereto for the year ended December 31, 2018 and the related Management’s Discussion and Analysis of Financial Condition and Results of Operations, both of which are contained in our Annual Report on Form 10-K for the year ended December 31, 2018.

Forward-Looking Statements

This quarterly report on Form 10-Q contains forward-looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended, or the Exchange Act. All statements other than statements of historical fact contained in this quarterly report, including statements regarding our future operating results, financial position and cash flows, our business strategy and plans, and our objectives for future operations, are forward-looking statements. These statements involve known and unknown risks, uncertainties and other important factors that may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by the forward-looking statements. In some cases, you can identify forward-looking statements by terms such as “may,” “will,” “would,” “could,” “should,” “expect,” “plan,” “anticipate,” “intend,” “target,” “project,” “contemplate,” “believe,” “estimate,” “predict,” “potential” or “continue” or the negative of these terms or other similar expressions. The forward-looking statements in this quarterly report are only predictions. We have based these forward-looking statements largely on our current expectations and projections about future events and financial trends that we believe may affect our financial condition, operating results, business strategy, short-term and long-term business operations and objectives. These forward-looking statements speak only as of the date of this quarterly report and are subject to a number of risks, uncertainties and assumptions, including those described in Part II, Item 1A, “Risk Factors.” The events and circumstances reflected in our forward-looking statements may not be achieved or occur and actual results could differ materially from those projected in the forward-looking statements. Moreover, we operate in a very competitive and rapidly changing environment. New risk factors and uncertainties may emerge from time to time, and it is not possible for management to predict all risk factors and uncertainties. Except as required by applicable law, we do not plan to publicly update or revise any forward-looking statements contained herein, whether as a result of any new information, future events, changed circumstances or otherwise.

Overview

We are a leading provider of advanced antenna technologies used to enable high performance wireless networking across a broad range of markets, including consumer, enterprise and automotive.  Our innovative antenna systems are designed to address key challenges with wireless system performance faced by our customers.  We provide solutions to complex Radio Frequency, or RF, engineering challenges to help improve wireless services that require higher throughput, broad coverage footprint, and carrier grade quality.

The consumer market encompasses a large and growing market of consumers using wireless-enabled devices and our antennas are deployed in consumer access points, wireless gateways, Wi-Fi Mesh systems, smart TVs, smart home devices, and set-top boxes. Our antennas support an array of technologies including wireless local area networking, or WLAN, Wi-Fi, LTE, 5G and low power wide area networking, or LPWAN.

The enterprise market is characterized by devices that provide reliable wireless access for high-density environments such as buildings, campuses, transportation terminals and stadiums Within this market our antennas are deployed across a wide range of systems, devices, and applications that include access points and gateways, small cells, and remote radio heads. In addition we support an array of technologies, including WiFi, LTE, 5G and LPWAN.

In the automotive market our antennas are deployed in a wide range of vehicles to support a variety of wireless connectivity solutions in the fleet and aftermarket segment and support a variety of technologies that include WiFi, 3G, LTE, Satellite and LPWAN. The fleet and aftermarket segment consists of applications whereby external modems are paired with external antenna systems to provide connectivity to fixed and mobile assets. Within the fleet and aftermarket market segment, there has been a rise in the number of antennas per vehicle. The majority of our revenues are currently derived from fleet and aftermarket sales and going forward, our strategy is to augment our current sales in the automotive aftermarket with design wins and sales into the automotive Original Equipment Manufacturers, or OEM, and in 2018 we announced two design wins with automotive OEMs.

Our design teams partner with customers from the early stages of antenna prototyping to device throughput testing to facilitate optimal performance and quick time to market.  Our capabilities include design, custom engineering support, integration, and over-

19

the-air, or OTA, testing.  These capabilities have resulted in a strong reputation across the OEM, Original Design Manufacturers, or ODM, and chipset manufacturer ecosystem.  Our competencies and strengths have helped us secure design wins used in multiple reference designs from leading Wi-Fi chipset vendors, OEMs, ODMs, andchipset manufacturers and service providers rely on these reference designs and our engineering skills to deliver superior throughput performance.  We view our relationship with OEM, ODM, chipset manufacturers and service providers as an important attribute to our long-term strategy and success.

We believe demand is growing rapidly for our advanced antenna solutions and there is a significant market opportunity. As the ability to provide mobile internet access grows, our solutions and expertise become more important to prospects and customers. As a passive component, embedded antennas can be viewed as a commodity. However, our design, engineering, and research show that antenna selection, placement, and testing can have significant improvements in device performance. We believe that we are chosen when performance is a more significant factor than price, and our distinctive focus on superior designs that provide increased range and throughput has allowed us to build a leadership position in the in-home WLAN device market.

Factors Affecting Our Operating Results

We believe that our performance and future success depend upon several factors including manufacturing costs, investments in our growth, our ability to expand into growing addressable markets, including consumer, enterprise, and automotive, the average sales price of our products per device, the number of antennas per device, and our ability to diversify the number of devices that incorporate our antenna products. Our customers are extremely price conscious and our operating results are affected by pricing pressure which may force us to lower prices below our established list prices. In addition, a few end-customer devices which incorporate our antenna products comprise a significant amount of our sales and the discontinuation or modification of such devices may materially and adversely affect our sales and results of operations. Our ability to maintain or increase our sales depends on among other things, new and existing end-customers selecting our antenna solutions for their wireless devices and networks, the proliferation of Wi-Fi connected home devices and data intensive applications, investments in our growth to address customer needs, our ability to target new end markets, development of our product offerings and technology solutions and international expansion, as well as our ability to successfully integrate past and any future acquisitions. While each of these areas presents significant opportunities for us, they also pose significant risks and challenges we must successfully address. See the section entitled “Risk Factors” included in Item 1A of our Annual Report on Form 10-K and our subsequent quarterly reports on Form 10-Q.

Seasonality

Our operating results historically have not been subject to significant seasonal variations.  However, our operating results are affected by how customers make purchasing decisions around local holidays in China.  For example, a national holiday the first week of October in China may cause customers to purchase product in the third quarter ahead of their holiday season to account for higher volume requirements in the fourth quarter.  In addition, although it is difficult to make broad generalizations, our sales tend to be lower in the first quarter of each year compared to other quarters due to the Chinese New Year.  Results for any quarter may not be indicative of the results that may be achieved for the full fiscal year and these patterns may change as a result of general customer demand or product cycles.

Key Components of Our Results of Operations and Financial Condition

Sales

We primarily generate revenue from the sales of our products. We recognize revenue when persuasive evidence of an arrangement exists, delivery has occurred, the fee is fixed or determinable, and collectability is reasonably assured. We generally recognize sales at the time of shipment to our customers, provided that all other revenue recognition criteria have been met. Although currently insignificant, we also generate service revenue derived from agreements to provide design, engineering, and testing for a customer.

Cost of Goods Sold

The cost of goods sold reflects the cost of producing antenna products that are shipped for our customers’ devices. This primarily includes manufacturing costs of our products payable to our third-party contract manufacturers, as well as manufacturing costs incurred at our facility in Arizona. The cost of goods sold that we generate from services provided to customers primarily includes personnel costs.

20

Operating Expenses

Our operating expenses are classified into three categories: research and development, sales and marketing, and general and administrative. For each category, the largest component is personnel costs, which includes salaries, employee benefit costs, bonuses, and stock-based compensation. Operating expenses also include allocated overhead costs for depreciation of equipment, facilities, and information technology. Allocated costs for facilities consist of leasehold improvements and rent. Operating expenses are generally recognized as incurred.

Research and development. Research and development expenses primarily consist of personnel and facility-related costs attributable to our engineering research and development personnel. These expenses include work related to the design, engineering and testing of antenna designs, and antenna integration, validation and testing of customer devices. These expenses include salaries, including stock-based compensation, benefits, bonuses, travel, communications, and similar costs, and depreciation and allocated operating expenses such as office supplies, premises expenses, and insurance. We may also incur expenses from consultants and for prototyping new antenna solutions. We expect research and development expenses to increase in absolute dollars in future periods as we continue to invest in the development of new solutions and markets and as we invest in improving efficiencies within our supply chain, although our research and development expense may fluctuate as a percentage of total sales.

Sales and marketing. Sales and marketing expenses primarily consist of personnel and facility-related costs for our sales, marketing, and business development personnel, stock-based compensation and bonuses earned by our sales personnel, and commissions earned by our third-party sales representative firms. Sales and marketing expenses also include the costs of trade shows, marketing programs, promotional materials, demonstration equipment, travel, recruiting, and allocated costs for certain facilities.  We expect sales and marketing expenses to decrease in absolute dollars in future periods as we realign our sales and marketing efforts, although our sales and marketing expenses may fluctuate as a percentage of total sales.

General and administrative. General and administrative expenses primarily consist of personnel and facility-related costs for our executive, finance, and administrative personnel, including stock-based compensation, as well as legal, accounting, and other professional services fees, depreciation, and other corporate expenses. We have recently incurred, and expect to continue to incur, additional expenses as we grow our operations and operate as a public company, including higher legal, corporate insurance, accounting expenses, and the additional costs of achieving and maintaining regulatory compliance. We expect general and administrative expenses to remain consistent with 2018, although our general and administrative expense may fluctuate as a percentage of total sales.

Other Income

Interest Income. Interest income consists of interest from our cash and cash equivalents and short-term investments.

Gain on Deferred Purchase Price Liability. During the three months ended June 30, 2018 we and Skycross, Inc. came to an agreement that we would pay Skycross $375,000 for deferred consideration under our asset purchase agreement entered into in December 2015. Gain on deferred purchase price liability consists of the variance between the amount paid to Skycross for the deferred purchase price and the elimination of the accounts receivable due from Skycross and the accounts payable due to Skycross.

Interest Expense. Interest expense consists of interest charges on debt.

Provision for Income Taxes

Provision for income taxes consists of federal and state income taxes. In assessing the realizability of deferred tax assets, management considers whether it is more likely than not that some portion or all of the deferred tax assets will not be realized.  The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. Management considers the scheduled reversal of deferred tax liabilities (including the impact of available carryback and carryforward periods), projected future taxable income, and tax-planning strategies in making this assessment.  It is difficult for us to project future taxable income as the timing and size of sales of our products are variable and difficult to predict.  We concluded that it is not more likely than not that we will utilize our deferred tax assets other than those that are offset by reversing temporary differences.  

21

Results of Operations

The following tables set forth our operating results for the periods presented as a percentage of our total sales for those periods. The period-to-period comparison of financial results is not necessarily indicative of financial results to be achieved in future periods.

	Three Months Ended June 30,						Six Months Ended June 30,
	2019			2018			2019			2018
Statements of Operations Data:
Sales		100.0	%		100.0	%		100.0	%		100.0	%
Cost of goods sold		53.8			55.9			54.4			54.7
Gross profit		46.2			44.1			45.6			45.3
Operating expenses:
Research and development		15.2			16.2			15.4			16.6
Sales and marketing		15.4			27.4			15.2			24.7
General and administrative		12.1			25.0			12.7			21.0
Total operating expenses		42.7			68.6			43.3			62.3
Income (loss) from operations		3.5			(24.5	)		2.3			(17.0	)
Other income		(1.3	)		(3.4	)		(1.3	)		(2.1	)
Income (loss) before income taxes		4.8			(21.1	)		3.6			(14.9	)
Provision for income taxes		0.2			0.3			0.2			0.3
Net income (loss)		4.6	%		(21.4	)%		3.4	%		(15.2	)%

Comparison of the Three and Six Months Ended June 30, 2019 and 2018 (dollars in thousands)

Sales

	Three Months Ended June 30,
	2019		2018		Decrease			% Change
Sales	$	14,462	$	14,972	$	(510	)		-3.4	%
	Six Months Ended June 30,
	2019		2018		Increase			% Change
Sales	$	29,570	$	28,277	$	1,293			4.6	%

Sales decreased $0.5 million for the three months ended June 30, 2019 as compared to the three months ended June 30, 2018 primarily driven by slower than anticipated ramp up in new and existing programs and increased $1.3 million for the six months ended June 30, 2019 as compared to the six months ended June 30, 2018. The sales increase was primarily driven by an increase in demand and a ramp up in existing programs and contributions from new designs, primarily within the consumer and enterprise markets.

Cost of Goods Sold

	Three Months Ended June 30,
	2019		2018		Decrease			% Change
Cost of goods sold	$	7,777	$	8,370	$	(593	)		-7.1	%
	Six Months Ended June 30,
	2019		2018		Increase			% Change
Cost of goods sold	$	16,100	$	15,481	$	619			4.0	%

Cost of goods sold decreased $0.6 million for the three months ended June 30, 2019  as compared to the three months ended June 30, 2018 and is primarily due to the decrease in revenues for the current quarter.  

The increase in cost of goods sold of $0.6 million for the six months ended June 30, 2019 as compared to the six months ended June 30, 2018 was primarily due to an increase in cost of goods sold within the consumer and enterprise markets.  

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Gross Profit

	Three Months Ended June 30,
	2019			2018			Increase		% Change
Gross profit	$	6,685		$	6,602		$	83		1.3	%
Gross profit (percentage of sales)		46.2	%		44.1	%				2.1	%
	Six Months Ended June 30,
	2019			2018			Increase		% Change
Gross profit	$	13,470		$	12,796		$	674		5.3	%
Gross profit (percentage of sales)		45.6	%		45.3	%				0.3	%

Gross profit as a percentage of sales increased 2.1% for the three months ended June 30, 2019 as compared to the three months ended June 30, 2018 and increased 0.3% for the six months ended June 30, 2019 as compared to the six months ended June 30, 2018. The increase in gross profit as a percentage of sales is primarily driven by a shift in the sales mix.

Operating Expenses

	Three Months Ended June 30,
	2019		2018		Decrease			% Change
Operating Expenses
Research and development	$	2,203	$	2,418	$	(215	)		-8.9	%
Sales and marketing		2,229		4,095		(1,866	)		-45.6	%
General and administrative		1,757		3,738		(1,981	)		-53.0	%
Total	$	6,189	$	10,251	$	(4,062	)		-39.6	%
	Six Months Ended June 30,
	2019		2018		Decrease			% Change
Operating Expenses
Research and development	$	4,541	$	4,688	$	(147	)		-3.1	%
Sales and marketing		4,503		6,979		(2,476	)		-35.5	%
General and administrative		3,752		5,942		(2,190	)		-36.9	%
Total	$	12,796	$	17,609	$	(4,813	)		-27.3	%

Research and Development

Research and development expense decreased $0.2 million for the three months ended June 30, 2019 compared to the three months ended June 30, 2018, primarily due to decreases in personnel-related expenses and depreciation along with higher allocation to cost of sales from contracts, but partially offset by higher facility cost from our expanded UK operations.

Research and development expense decreased $0.1 million for the six months ended June 30, 2019 compared to the six months ended June 30, 2018.

Sales and Marketing

Sales and marketing expense decreased $1.9 million for the three months ended June 30, 2019 compared to the three months ended June 30, 2018. The decrease was primarily due to the termination of certain marketing activities and reduced tradeshow spending.

Sales and marketing expense decreased $2.5 million for the six months ended June 30, 2019 compared to the six months ended June 30, 2018.  The decrease was primarily due to the termination of certain marketing activities and reduced tradeshow spending.

General and Administrative

General and administrative expense decreased $2.0 million for the three months ended June 30, 2019 compared to the three months ended June 30, 2018. The decrease was primarily due to decrease in personnel-related expenses.

General and administrative expense decreased $2.2 million for the six months ended June 30, 2019 compared to the six months ended June 30, 2018.  The decrease was primarily due to decrease in personnel-related expenses.

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Other Income

	Three Months Ended June 30,
	2019			2018			(Increase) / Decrease			% Change
Other expense (income):
Interest income	$	(189	)	$	(129	)	$	(60	)		46.5	%
Gain on deferred purchase price liability		—			(389	)		389			-100.0	%
Interest expense		—			10			(10	)		-100.0	%
Total	$	(189	)	$	(508	)	$	319			-62.8	%
	Six Months Ended June 30,
	2019			2018			(Increase) / Decrease			% Change
Other expense (income):
Interest income		(377	)	$	(239	)	$	(138	)		57.7	%
Gain on deferred purchase price liability		—			(389	)		389			-100.0	%
Interest expense		1			24			(23	)		-95.8	%
Total	$	(376	)	$	(604	)	$	228			-37.7	%

Other income decreased $0.3 million for the three months ended June 30, 2019 as compared to the three months ended June 30, 2018.  The decrease was primarily due to the one-time gain on deferred purchase price liability in the prior period offset by an increase in interest income on invested cash and cash equivalents.  

Other income decreased $0.2 million for the six months ended June 30, 2019 as compared to the six months ended June 30, 2018.  The decrease was due to the one-time gain on deferred purchase price liability in the prior period offset by an increase in interest income on invested cash and cash equivalents.  

Liquidity and Capital Resources

We had cash and cash equivalents of $13.6 million and $20.6 million in short-term investments at June 30, 2019.

Before 2013, we had incurred net losses in each year since our inception. As a result, we had an accumulated deficit of $44.0 million at June 30, 2019.

Since inception, we have primarily financed our operations and capital expenditures through private sales of preferred stock, public offerings of our common stock and cash flows from our operations. We have raised an aggregate of $29.5 million in net proceeds from the issuance of our preferred stock and convertible promissory notes and $37.0 million from the sale of common stock in our public offerings.

In December 2015, we amended our amended and restated loan and security agreement with Silicon Valley Bank to include an additional term loan up to $4.0 million. The additional term loan required 36 monthly installments of interest and principal and lapse upon maturity on December 1, 2018.

On January 31, 2018, we entered into a second amended and restated loan and security agreement with Silicon Valley Bank, the Amended Loan Agreement. The agreement, among other things, increased the aggregate principal amount available under the revolving line of credit from $3.0 million to $10.0 million and modifies certain existing financial covenants. Under the Amended Loan Agreement, we may borrow up to $10.0 million under the line of credit, subject to a borrowing base limit of 80% of the aggregate face amount of all eligible receivables. The Amended Loan Agreement removed the minimum EBITDA requirement previously applicable to the line of credit and term loan and maintained the liquidity ratio financial covenant such that we must maintain a ratio of cash and cash equivalents plus accounts receivable to outstanding debt under the Amended Loan Agreement minus deferred revenue of 1.25 to 1.00. We will be required to pay interest on borrowings outstanding, if any, under the revolving line of credit at a floating rate per annum equal to 1% above the Wall Street Journal prime rate (or, if unavailable, the SVB prime rate) on a monthly basis, so long as we maintain a liquidity ratio of cash and cash equivalents plus accounts receivable to outstanding debt under the Amended Loan Agreement minus deferred revenue of 1.25 to 1.00.  If this liquidity ratio is not met, we will be subject to a minimum interest charge of $3,000 per month and borrowings outstanding, if any, under the revolving line of credit will accrue interest at a floating rate per annum equal to 2% above the Wall Street Journal prime rate (or if unavailable, the SVB prime rate) on a monthly basis.  The revolving line of credit matures on January 31, 2020.  

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As of June 30, 2019, there was no balance owed on the line of credit under the Amended Loan Agreement.

Silicon Valley Bank maintains a first security interest over our assets, excluding intellectual property, for which Silicon Valley Bank has received a negative pledge.  The Amended Loan Agreement contains customary affirmative and negative covenants and events of default applicable to us and any subsidiaries.

In August 2017, our board of directors approved a share repurchase program pursuant to which we may purchase up to $7.0 million of shares of our common stock over the twelve-month period following the establishment of the program.  The repurchases under the share repurchase program are made from time to time in the open market or in privately negotiated transactions and are funded from our working capital.  Repurchases will be made in compliance with Rule 10b-18 of the Securities Exchange Act of 1934, as amended, subject to market conditions, available liquidity, cash flow, applicable legal requirements and other factors.  All shares of common stock repurchased under our share repurchase program will be returned to the status of authorized and issued shares of common stock. On August 7, 2018, our board of directors approved an extension to the existing share repurchase program for an additional twelve-month period ending August 14, 2019. During the three months ended June 30, 2019, we did not repurchased any shares of common stock under the share repurchase program.

We plan to continue to invest for long-term growth, including expanding our sales force and engineering organizations and making additional capital expenditures to further penetrate markets both in the United States and internationally, as well as expanding our research and development for new product offerings and technology solutions. We anticipate that these investments will continue to increase in absolute dollars. We believe that our existing cash and cash equivalents balance together with cash proceeds from operations will be sufficient to meet our working capital requirements for at least the next twelve months.

The following table presents a summary of our cash flow activity for the periods set forth below (in thousands):

	Six Months Ended June 30,
	2019			2018
Net cash provided by (used in) operating activities	$	224		$	(1,579	)
Net cash provided by (used in) investing activities		(600	)		1,877
Net cash provided by (used in) financing activities		396			(2,065	)
Net increase (decrease) in cash and cash equivalents	$	20		$	(1,767	)

Net cash provided by (used in) operating activities.  Net cash provided by operating activities was $0.2 million for the six months ended June 30, 2019. This was primarily driven by net income of $1.0 million and further adjusted by $1.4 million of non-cash expenses and offset by changes in operating assets and liabilities of $2.2 million.

Net cash provided by (used in) investing activities.  Net cash used by investing activities was $0.6 million for the six months ended June 30, 2019.  This was primarily driven by $20.9 million in maturities of available-for-sale securities offset by $21.1 million in purchases of available-for-sale securities and $0.4 million in purchases of property and equipment.

Net cash used in financing activities.  Net cash provided by financing activities was $0.4 million for the six months ended June 30, 2019.  This was primarily driven by $0.6 million in proceeds from the exercise of stock options offset by $0.2 million in common stock repurchases.

Contractual Obligations and Commitments

There were no material changes outside the ordinary course of our business during the three and six months ended June 30, 2019 to the information regarding our contractual obligations that was disclosed in Management’s Discussion and Analysis of Financial Condition and Results of Operations included in our Annual Report on Form 10-K for the year ended December 31, 2018.

Off-Balance Sheet Arrangements

We do not have any off-balance sheet arrangements (as defined by applicable regulations of the Securities and Exchange Commission) that are reasonably likely to have a current or future material effect on our financial condition, results of operations, liquidity, capital expenditures or capital resources.

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Critical Accounting Policies and Significant Judgments and Estimates

Our management’s discussion and analysis of financial condition and operating results is based on our unaudited condensed financial statements, which have been prepared in accordance with GAAP. The preparation of these financial statements requires us to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, as well as the reported sales and expenses during the reporting periods. These items are monitored and analyzed by us for changes in facts and circumstances, and material changes in these estimates could occur in the future. We base our estimates on historical experience and on various other factors that we believe are reasonable under the circumstances, the results of which form the basis for making judgments about the carrying value of assets and liabilities that are not readily apparent from other sources. Changes in estimates are reflected in reported results for the period in which they become known. Actual results may differ materially from these estimates under different assumptions or conditions.

There have been no material changes to our critical accounting policies and estimates as compared to the critical accounting policies and estimates described in our Annual Report on Form 10-K for the fiscal year ended December 31, 2018, other than as set forth in Note 2 to the unaudited condensed financial statements included in this quarterly report.

Recent Accounting Pronouncements

See Note 2, “Summary of Significant Accounting Policies” within the unaudited condensed financial statements.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

Interest Rate Sensitivity

Our investment portfolio is exposed to market risk from changes in interest rates.  The fair market value of fixed rate securities may be adversely impacted by fluctuations in interest rates while income earned on floating rate securities may decline as a result of decreases in interest rates.  Under our current investment policies, we do not use interest rate derivative instruments to manage exposure to interest rate changes.  We attempt to ensure the safety and preservation of our invested principal funds by limiting default risk, market risk, and reinvestment risk.  We mitigate default risk by investing in investment grade securities.  We maintain a relatively short average maturity for our investment portfolio, and we believe a hypothetical 100 basis point adverse move in interest rates along the entire interest rate yield curve would not materially affect the fair value of our interest sensitive financial instruments.  

At June 30, 2019, our undrawn revolving credit facility under our Amended Loan Agreement with Silicon Valley Bank bears interest at the Wall Street Journal Prime rate (5.5% as of June 30, 2019) plus 1.00%. If we draw funds from our revolving credit facility, we will be exposed to interest rate sensitivity, which is affected by changes in the Wall Street Journal prime rate.

Foreign Currency Risk

All of our sales are denominated in U.S. dollars, and therefore, our sales are not currently subject to significant foreign currency risk. To date, foreign currency transaction gains and losses have not been material to our financial statements, and we have not engaged in any foreign currency hedging transactions.

ITEM 4. CONTROLS AND PROCEDURES

Disclosure Controls and Procedures

We maintain disclosure controls and procedures that are designed to ensure that information required to be disclosed in our periodic and current reports that we file with the SEC is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, and that such information is accumulated and communicated to our management, including our principal executive officer and principal financial officer, as appropriate, to allow timely decisions regarding required disclosure. In designing and evaluating the disclosure controls and procedures, management recognized that any controls and procedures, no matter how well designed and operated, can provide only reasonable and not absolute assurance of achieving the desired control objectives. In reaching a reasonable level of assurance, management necessarily was required to apply its judgment in evaluating the cost-benefit relationship of possible controls and procedures. In addition, the design of any system of controls also is based in part upon certain assumptions about the likelihood of future events, and there can be no assurance that any design will succeed in achieving its stated goals under all potential future conditions; over time, control may become inadequate because of changes in conditions, or the degree of compliance with policies or procedures may deteriorate. Because of the inherent limitations in a cost-effective control system, misstatements due to error or fraud may occur and not be detected.

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Our management, with the participation of our principal executive officer and principal financial officer, has evaluated the effectiveness of our disclosure controls and procedures as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended, or the Exchange Act, as of the end of the period covered by this quarterly report on Form 10-Q. Based on such evaluation, our principal executive officer and principal financial officer have concluded that as of such date, our disclosure controls and procedures were effective at the reasonable assurance level.

Changes in Internal Control Over Financial Reporting

No change in our internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Exchange Act) occurred during the three months ended June 30, 2019 that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

PART II. OTHER INFORMATION

ITEM 1. LEGAL PROCEEDINGS

We are not currently party to any material legal proceedings.

ITEM 1A. RISK FACTORS

A description of the risk factors associated with our business is included in the Item 1A of our Annual Report on Form 10-K for the year ended December 31, 2018, as updated by our subsequent filings under the Exchange Act. There have been no material changes to such risk factors as previously reported, other than as set forth below.  In evaluating our business, you should carefully consider the risk factors discussed in our Annual Report on Form 10-K, as updated by our subsequent filings under the Exchange Act.  The occurrence of any of the risks discussed in such filings, or other events that we do not currently anticipate or that we currently deem immaterial, could harm our business, prospects, financial condition and results of operations. In that case, the trading price of our common stock could decline, and you may lose all or part of your investment.

Risks Related to Our Business and Industry

Our operating results may fluctuate significantly, which makes our future operating results difficult to predict and could cause our operating results to fall below expectations or our guidance.

Our quarterly and annual operating results have fluctuated in the past and may fluctuate significantly in the future, which makes it difficult for us to predict our future operating results. The timing and size of sales of our products are variable and difficult to predict and can result in fluctuations in our net sales from period to period. In addition, our budgeted expense levels depend in part on our expectations of future sales. Because any substantial adjustment to expenses to account for lower levels of sales is difficult and takes time, we may not be able to reduce our costs sufficiently to compensate for an unexpected shortfall in net sales, and even a small shortfall in net sales could disproportionately and adversely affect our operating margin and operating results for a given quarter.

Our operating results may also fluctuate due to a variety of other factors, many of which are outside of our control, including the changing and volatile U.S., European, Asian and global economic environments, and any of which may cause our stock price to fluctuate. Besides the other risks in this “Risk Factors” section, factors that may affect our operating results include:

• fluctuations in demand for our products and services;

• the inherent complexity, length and associated unpredictability of product development windows and product lifecycles;

• the timing and extent of investment in our targeted growth markets and the timing and amount of sales in such markets;

• changes in customers’ budgets for technology purchases and delays in their purchasing cycles;

• seasonal fluctuations around local holidays in China affecting how customers make purchasing decisions;

• changing market conditions;

• any significant changes in the competitive dynamics of our markets, including new entrants, or further consolidation; the timing of product releases or upgrades by us or by our competitors; and

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• our ability to develop, introduce and ship in a timely manner new products and product enhancements and anticipate future market demands that meet our customers’ requirements.

For example, the ongoing tension on global trade and macroenvironment are impacting the whole supply chain to varying degrees, which, in addition to the slowdown in customer specific product rollouts, has negatively affected our business and may continue to do so. In addition, the slower than expected rollouts of our customers 802.11ac, 802.11ax and DOCSIS 3.1 upgrade cycles in 2018 shifted the timing of our product sales, and such future deployment delays could also affect our quarterly operating results.  The cumulative effects of the factors above could result in large fluctuations and unpredictability in our quarterly and annual operating results. As a result, comparing our operating results on a period-to-period basis may not be meaningful. You should not rely on our past results as an indication of future performance.

The implementation of a new accounting system could interfere with our business and operations.

We are in the process of implementing a new accounting system, NetSuite. The implementation of new systems and enhancements may be disruptive to our business and can be time-consuming and divert management’s attention. Any disruptions relating to our systems or any problems with the implementation, particularly any disruptions impacting our operations or our ability to accurately report our financial performance on a timely basis during the implementation period, could materially and adversely affect our business and operations.

ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

Unregistered Sales of Equity Securities

There were no unregistered sales of equity securities during the period covered by this report.

Issuer Purchases of Equity Securities

There were no repurchases of our common stock made by us in the three months ended June 30, 2019.

ITEM 3. DEFAULTS UPON SENIOR SECURITIES

None.

ITEM 4. MINE SAFETY DISCLOSURES

None.

ITEM 5. OTHER INFORMATION

Promotion of Jacob Suen to Chief Executive Officer and Appointment to Board of Directors

On August 6, 2019, our board of directors appointed Jacob Suen as Chief Executive Officer, with such promotion effective August 8, 2019, and Mr. Suen will also retain the position of President. Mr. Suen replaces Jim Sims, who has served as Chairman of the Board and Chief Executive Officer since March 2019. Following the filing of this quarterly report on Form 10-Q, Mr. Suen will begin to serve as our principal executive officer for filings under the Securities Act of 1933, as amended, and the Exchange Act, replacing Mr. Sims in such capacity. In connection with his appointment, Mr. Suen's annual salary will increase to $400,000 and his target annual bonus will remain at 90% of his annual base salary.  Mr. Suen also entered into an amendment to his employment agreement with us to reflect his promotion.  The Board also approved the grant of stock options to Mr. Suen to purchase 250,000 shares of our common stock under the 2016 Incentive Award Plan, with such stock options to be granted effective August 12, 2019.  The stock options will have an exercise price equal to the closing price per share of our common stock on the date of grant and a term of ten years.  The stock options will vest over four years, with 25% vesting on August 12, 2020 and the remainder vesting in 36 equal monthly installments thereafter.  Vesting of the stock options is subject to Mr. Suen's continued employment or service with the company through the applicable vesting date and are subject to acceleration as set forth in Mr. Suen's employment agreement.

Effective August 8, 2019, our board of directors also voted to increase the size of the board of directors from five to six directors and appointed Mr. Suen as a director to fill the newly created vacancy on the board. Mr. Suen was appointed as a Class III director, with an initial term expiring at the 2022 annual meeting of stockholders.

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Mr. Suen, age 46, has served as our President since January 2019 and previously served as our Senior Vice President, Worldwide Sales from May 2017 through January 2019. He has been with the company since April 2006 as the Vice President of Asia Pacific Sales.  Previously, Mr. Suen served as the Director of Business Development from 1998 to 2005 at Paradyne Corporation. Prior to Paradyne, Mr. Suen was a Development Engineer at GVN Technologies in 1998. From 1997 to 1998, Mr. Suen was a Software Development Engineer for Motorola Incorporation. Mr. Suen holds a Master of Science in Electrical Engineering with a concentration in Communication Systems and a minor in Engineering Management from the University of South Florida. Mr. Suen also has his Master of Business Administration with a focus on International Business and Entrepreneurship from the University of Colorado.

There are no family relationships between Mr. Suen and any of our directors or executive officers, and he has no direct or indirect material interest in any transaction required to be disclosed pursuant to Item 404(a) of Regulation S-K.

Amended and Restated Employment Agreement with Jim Sims

Effective August 8, 2019, in connection with Mr. Suen’s appointment, Mr. Sims resigned as Chief Executive Officer and was appointed as Advisor to the Chief Executive Officer.  Mr. Sims' employment agreement was amended and restated to reflect this change in his position.  Mr. Sims also continues in his role as Chairman of the Board.  

The amended and restated employment agreement with Mr. Sims provides for a fixed term during which he will serve as Advisor to the Chief Executive Officer, which will expire in six months on February 9, 2020, unless earlier terminated by us or Mr. Sims.  Mr. Sims' employment remains at-will.  During the six-month term of his employment agreement, Mr. Sims will continue to receive his current base salary of $400,000 annually.  Mr. Sims also remains eligible to receive an annual incentive bonus for 2019 in the discretion of our board of directors (with a target bonus of 90% of his base salary).

During his employment, Mr. Sims will generally not be entitled to any additional fees or other compensation for serving as a member of the board.  Commencing February 1, 2020, Mr. Sims will be eligible to receive equity grants in accordance with our non-employee director compensation program.  After the end of his employment term, subject to his remaining as a member of our board of directors, Mr. Sims' will receive a cash retainer for his service as the non-employee Chairman of the Board for the remainder of 2020, based on an annualized rate of $240,000 per year. His annual cash retainer thereafter will be determined in accordance with our non-employee director compensation program. If Mr. Sims' employment terminates for any reason, including the expiration of the term of his amended and restated employment agreement, he will be entitled to the payment of his fully earned but unpaid base salary through the date of termination at the rate then in effect, plus all other amounts under any compensation plan or practice to which he is entitled.

The foregoing descriptions of the amendment to Mr. Suen's employment agreement and the amended and restated employment agreement with Mr. Sims do not purport to be complete and are qualified in their entirety by reference to the full text of such agreements, which will be filed as an exhibit to our quarterly report on Form 10-Q to be filed with respect to the quarter ending September 30, 2019.

ITEM 6. EXHIBITS

Exhibit Number	Description
3.1(1)	Amended and Restated Certificate of Incorporation
3.2(1)	Amended and Restated Bylaws
4.1(2)	Specimen stock certificate evidencing the shares of common stock
4.2(3)	Fourth Amended and Restated Investors’ Rights Agreement, dated May 7, 2008
4.3(2)	Form of Warrant issued to Northland Securities, Inc. in connection with the initial public offering of our common stock.
31.1	Certification of Principal Executive Officer pursuant to Rules 13a-14 and 15d-14 promulgated pursuant to the Securities Exchange Act of 1934, as amended
31.2	Certification of Principal Financial Officer pursuant to Rules 13a-14 and 15d-14 promulgated pursuant to the Securities Exchange Act of 1934, as amended
32.1*	Certification of Principal Executive Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

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32.2*	Certification of Principal Financial Officer 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

(1) Incorporated by reference to the Registrant’s Current Report on Form 8-K, filed with the SEC on August 17, 2016.

(2) Incorporated by reference to Amendment No. 2 to the Registrant’s Registration Statement on Form S-1 (Registration No. 333- 212542), filed with the SEC on July 29, 2016.

(3) Incorporated by reference to Amendment No. 1 to the Registrant’s Registration Statement on Form S-1 (Registration No. 333- 212542), filed with the SEC on July 15, 2016.

* These certifications are being furnished solely to accompany this quarterly report pursuant to 18 U.S.C. Section 1350, and are not being filed for purposes of Section 18 of the Securities Exchange Act of 1934 and are not to be incorporated by reference into any filing of the Registrant, whether made before or after the date hereof, regardless of any general incorporation language in such filing.

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.

	AIRGAIN, INC.
Date: August 8, 2019	/s/ James K. Sims
	James K. Sims Chairman of the Board and Chief Executive Officer (principal executive officer)
Date: August 8, 2019	/s/ Anil Doradla
	Anil Doradla Chief Financial Officer and Secretary (principal financial and accounting officer)

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EX-31.1

Exhibit 31.1

CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, James K. Sims, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Airgain, 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 8, 2019	/s/ James K. Sims
	James K. Sims
	Chief Executive Officer
	(principal executive officer)

EX-31.2

Exhibit 31.2

CERTIFICATION OF PRINCIPAL FINANCIAL OFFICER

PURSUANT TO SECTION 302 OF THE SARBANES-OXLEY ACT OF 2002

I, Anil Doradla, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Airgain, 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)) (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 8, 2019	/s/ Anil Doradla
	Anil Doradla
	Chief Financial Officer and Secretary
	(principal financial and accounting officer)

EX-32.1

Exhibit 32.1

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 of Airgain, Inc. (the “Company”) on Form 10-Q for the quarter ended June 30, 2019, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, James K. Sims, 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, to my knowledge:

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

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

Date: August 8, 2019	/s/ James K. Sims
	James K. Sims
	Chief Executive Officer

The foregoing certification is being furnished solely pursuant to 18 U.S.C. Section 1350 and is not being filed as part of the Report or as a separate disclosure document.

EX-32.2

Exhibit 32.2

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 of Airgain, Inc. (the “Company”) on Form 10-Q for the quarter ended June 30, 2019, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, Anil Doradla, Chief Financial Officer and Secretary 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, to my knowledge:

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

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

Date: August 8, 2019	/s/ Anil Doradla
	Anil Doradla
	Chief Financial Officer and Secretary

The foregoing certification is being furnished solely pursuant to 18 U.S.C. Section 1350 and is not being filed as part of the Report or as a separate disclosure document.

XML

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2019	Aug. 05, 2019
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2019
Document Fiscal Year Focus	2019
Document Fiscal Period Focus	Q2
Trading Symbol	AIRG
Entity Registrant Name	AIRGAIN INC
Entity Central Index Key	0001272842
Current Fiscal Year End Date	--12-31
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Shell Company	false
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	false
Entity File Number	001-37851
Entity Tax Identification Number	954523882
Entity Address, Address Line One	3611 Valley Centre Drive
Entity Address, Address Line Two	Suite 150
Entity Address, City or Town	San Diego
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	92130
City Area Code	760
Local Phone Number	579-0200
Entity Common Stock, Shares Outstanding		9,715,245

XML

Condensed Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 13,641	$ 13,621
Short term investments	20,572	20,169
Trade accounts receivable	9,722	7,013
Inventory	1,095	1,351
Prepaid expenses and other current assets	1,012	931
Total current assets	46,042	43,085
Property and equipment, net	1,707	1,401
Goodwill	3,700	3,700
Customer relationships, net	3,351	3,593
Intangible assets, net	773	859
Other assets	229	269
Total assets	55,802	52,907
Current liabilities:
Accounts payable	5,537	4,137
Accrued bonus	908	2,076
Accrued liabilities	1,494	1,217
Current portion of deferred rent obligation under operating lease	71	81
Total current liabilities	8,010	7,511
Deferred tax liability	30	38
Deferred rent obligation under operating lease	142	211
Total liabilities	8,182	7,760
Stockholders’ equity:
Common shares, par value $0.0001, 200,000,000 shares authorized at June 30, 2019 and December 31, 2018; 10,086,909 and 9,958,448 shares issued at June 30, 2019 and December 31, 2018, respectively, and 9,715,245 and 9,601,134 shares outstanding at June 30, 2019 and December 31, 2018, respectively	1	1
Additional paid in capital	95,228	93,583
Treasury stock, at cost: 371,664 shares and 357,314 shares at June 30, 2019 and December 31, 2018, respectively	(3,625)	(3,432)
Accumulated other comprehensive income (loss)	12	(11)
Accumulated deficit	(43,996)	(44,994)
Total stockholders’ equity	47,620	45,147
Commitments and contingencies (note 12)
Total liabilities and stockholders’ equity	$ 55,802	$ 52,907

XML

Condensed Balance Sheets (Unaudited) (Parenthetical) - $ / shares	Jun. 30, 2019	Dec. 31, 2018
Statement Of Financial Position [Abstract]
Common stock, par value	$ 0.0001	$ 0.0001
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	10,086,909	9,958,448
Common stock, shares outstanding	9,715,245	9,601,134
Treasury stock, shares at cost	371,664	357,314

XML

Condensed Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Statement [Abstract]
Sales	$ 14,462	$ 14,972	$ 29,570	$ 28,277
Cost of goods sold	7,777	8,370	16,100	15,481
Gross profit	6,685	6,602	13,470	12,796
Operating expenses:
Research and development	2,203	2,418	4,541	4,688
Sales and marketing	2,229	4,095	4,503	6,979
General and administrative	1,757	3,738	3,752	5,942
Total operating expenses	6,189	10,251	12,796	17,609
Income (loss) from operations	496	(3,649)	674	(4,813)
Other expense (income):
Interest income	(189)	(129)	(377)	(239)
Gain on deferred purchase price liability		(389)		(389)
Interest expense		10	1	24
Total other income	(189)	(508)	(376)	(604)
Income (loss) before income taxes	685	(3,141)	1,050	(4,209)
Provision for income taxes	23	49	52	87
Net income (loss)	$ 662	$ (3,190)	$ 998	$ (4,296)
Net income (loss) per share:
Basic	$ 0.07	$ (0.34)	$ 0.10	$ (0.45)
Diluted	$ 0.07	$ (0.34)	$ 0.10	$ (0.45)
Weighted average shares used in calculating income (loss) per share:
Basic	9,696,876	9,439,025	9,661,474	9,459,272
Diluted	10,127,719	9,439,025	10,071,300	9,459,272

XML

Condensed Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Statement Of Income And Comprehensive Income [Abstract]
Net income (loss)	$ 662	$ (3,190)	$ 998	$ (4,296)
Unrealized gain on available-for-sale securities, net of deferred taxes	13	11	23	7
Total comprehensive income (loss)	$ 675	$ (3,179)	$ 1,021	$ (4,289)

XML

Condensed Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in Capital	Treasury Stock	Accumulated Other Comprehensive Income (Loss)	Accumulated Deficit
Beginning balance at Dec. 31, 2017	$ 46,225	$ 1	$ 89,907	$ (1,257)	$ (17)	$ (42,409)
Stock-based compensation			2,128
Exercise of stock options			300
Common stock repurchases				(1,323)
Unrealized gain on available-for-sale securities, net of deferred taxes	7				7
Net income (loss)	(4,296)					(4,296)
Ending balance at Jun. 30, 2018	43,041	1	92,335	(2,580)	(10)	(46,705)
Beginning balance at Mar. 31, 2018	44,798	1	90,370	(2,037)	(21)	(43,515)
Stock-based compensation			1,769
Exercise of stock options			196
Common stock repurchases				(543)
Unrealized gain on available-for-sale securities, net of deferred taxes	11				11
Net income (loss)	(3,190)					(3,190)
Ending balance at Jun. 30, 2018	43,041	1	92,335	(2,580)	(10)	(46,705)
Beginning balance at Dec. 31, 2018	45,147	1	93,583	(3,432)	(11)	(44,994)
Stock-based compensation			1,056
Exercise of stock options			589
Common stock repurchases				(193)
Unrealized gain on available-for-sale securities, net of deferred taxes	23				23
Net income (loss)	998					998
Ending balance at Jun. 30, 2019	47,620	1	95,228	(3,625)	12	(43,996)
Beginning balance at Mar. 31, 2019	46,045	1	94,328	(3,625)	(1)	(44,658)
Stock-based compensation			542
Exercise of stock options			358
Unrealized gain on available-for-sale securities, net of deferred taxes	13				13
Net income (loss)	662					662
Ending balance at Jun. 30, 2019	$ 47,620	$ 1	$ 95,228	$ (3,625)	$ 12	$ (43,996)

XML

Condensed Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Cash flows from operating activities:
Net income (loss)	$ 998,000	$ (4,296,000)
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Depreciation	268,000	266,000
Amortization	328,000	338,000
Amortization of discounts on investments, net	(185,000)	(53,000)
Stock-based compensation	1,056,000	2,128,000
Deferred tax liability	(8,000)	19,000
Gain on deferred purchase price liability		(389,000)
Changes in operating assets and liabilities:
Trade accounts receivable	(2,709,000)	1,201,000
Inventory	256,000	(52,000)
Prepaid expenses and other assets	(41,000)	(17,000)
Accounts payable	1,231,000	132,000
Accrued bonus	(1,168,000)	(726,000)
Accrued liabilities	277,000	(78,000)
Deferred obligation under operating lease	(79,000)	(52,000)
Net cash provided by (used in) operating activities	224,000	(1,579,000)
Cash flows from investing activities:
Purchases of available-for-sale securities	(21,065,000)	(12,650,000)
Maturities of available-for-sale securities	20,870,000	15,180,000
Purchases of property and equipment	(405,000)	(653,000)
Net cash provided by (used in) investing activities	(600,000)	1,877,000
Cash flows from financing activities:
Repayment of notes payable		(667,000)
Payment on deferred purchase price liability		(375,000)
Common stock repurchases	(193,000)	(1,323,000)
Proceeds from exercise of stock options	589,000	300,000
Net cash provided by (used in) financing activities	396,000	(2,065,000)
Net increase (decrease) in cash and cash equivalents	20,000	(1,767,000)
Cash and cash equivalents, beginning of period	13,621,000	15,026,000
Cash and cash equivalents, end of period	13,641,000	13,259,000
Supplemental disclosure of cash flow information:
Interest paid		27,000
Taxes paid	46,000	$ 18,000
Supplemental disclosure of non-cash investing and financing activities:
Accrual of property and equipment	$ 169,000

XML

Basis of Presentation

6 Months Ended

Jun. 30, 2019

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Basis of Presentation

Note 1. Basis of Presentation

Business Description

Airgain, Inc. (the Company) was incorporated in the State of California on March 20, 1995 and reincorporated in the State of Delaware on August 15, 2016. The Company is a leading provider of advanced antenna technologies used to enable high performance wireless networking across a broad range of markets, including consumer, enterprise and automotive. The Company designs, develops, and engineers its antenna products for original equipment and design manufacturers worldwide. The Company’s headquarters is in San Diego, California with office space and research, design and test facilities in the United States, United Kingdom, and China.

Basis of Presentation

The accompanying unaudited condensed financial statements have been prepared in accordance with U.S. generally accepted accounting principles (GAAP) and applicable rules and regulations of the Securities and Exchange Commission (SEC) regarding interim financial reporting. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Interim financial results are not necessarily indicative of results anticipated for the full year. As such, the information included in this quarterly report on Form 10-Q should be read in conjunction with the financial statements and accompanying notes included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2018, from which the balance sheet information herein was derived.

The unaudited condensed balance sheet as of December 31, 2018 included herein was derived from the audited financial statements as of that date but does not include all disclosures including notes required by GAAP.

The unaudited condensed statements of operations for the three and six months ended June 30, 2019 and 2018, and the balance sheet data as of June 30, 2019 have been prepared on the same basis as the audited financial statements.

In the opinion of management, the accompanying unaudited condensed financial statements reflect all adjustments, consisting of normal and recurring adjustments, necessary for a fair presentation of results of the Company’s operations and financial position for the interim periods, but are not necessarily indicative of the results of operations to be anticipated for the full year ending December 31, 2019 or for any future period.   

Segment Information

The Company’s operations are located primarily in the United States, and most of its assets are located in San Diego, California and Scottsdale, Arizona. The Company operates in one segment related to the sale of antenna products. The Company’s chief operating decision-maker is its chief executive officer, who reviews operating results on an aggregate basis and manages the Company’s operations as a single operating segment.

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Significant items subject to such estimates and assumptions include valuation of intangible assets and goodwill.

Reclassifications

Certain amounts in the prior period financial statements have been reclassified to conform to the presentation of the current period financial statements

Fair Value Measurements

The carrying values of the Company’s financial instruments, including cash and cash equivalents, trade accounts receivable, accounts payable, and accrued liabilities approximate their fair values due to the short maturity of these instruments.

Fair value measurements are market-based measurements, not entity-specific measurements. Therefore, fair value measurements are determined based on the assumptions that market participants would use in pricing the asset or liability. The Company follows a three-level hierarchy to prioritize the inputs used in the valuation techniques to derive fair values. The basis for fair value measurements for each level within the hierarchy is described below:

• Level 1: Quoted prices in active markets for identical assets or liabilities.

• Level 2: Quoted prices for similar assets or liabilities in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations in which all significant inputs are observable in active markets.

• Level 3: Valuations derived from valuation techniques in which one or more significant inputs are unobservable in active markets.

Cash Equivalents and Short-Term Investments

Cash equivalents are comprised of short-term, highly liquid investments with maturities of 90 days or less at the date of purchase.  

Short-term investments consist predominantly of commercial paper, corporate debt securities, U.S. Treasury securities and asset backed securities.  The Company classifies short-term investments based on the facts and circumstances surrounding the investments at the time of purchase and evaluates such classification as of each balance sheet date.  All short-term investments are classified as available-for-sale securities as of June 30, 2019 and are recorded at estimated fair value.  Unrealized gains and losses for available-for-sale securities are included in accumulated other comprehensive income (loss), a component of stockholders’ equity.  Realized gains and losses are included in other income, in the unaudited condensed statements of operations.  The Company evaluates its investments to determine whether those with unrealized loss positions are other than temporarily impaired.  Impairments are considered to be other than temporary if they are related to deterioration in credit risk or if it is likely that the Company will sell the securities before recovery of their cost basis.

Inventory

The majority of the Company’s products are manufactured by third parties that retain ownership of the inventory until title is transferred to the customer at the shipping point.  In certain instances, shipping terms are delivery at place and the Company is responsible for arranging transportation and delivery of goods ready for unloading at the named place.  The Company bears all risk involved in bringing the goods to the named place and records the related inventory in transit to the customer as inventory on the accompanying balance sheet. The Company also manufactures certain of its products at its facility located in Scottsdale, Arizona.

Inventory is stated at the lower of cost or net realizable value.  For items manufactured by the Company, cost is determined using the weighted average cost method.  For items manufactured by third parties, cost is determined using the first-in, first-out (FIFO) method.  Any adjustments to reduce the cost of inventories to their net realizable value are recognized in earnings in the current period.  As of June 30, 2019, the Company’s inventories consist primarily of raw materials.  Provisions for excess and obsolete inventories are estimated based on product life cycles, quality issues, and historical experience.  As of June 30, 2019, there is no provision for excess and obsolete inventories.

Accumulated Other Comprehensive Income (Loss)

Comprehensive income (loss) is comprised of net income (loss) and other comprehensive income (loss).  Accumulated other comprehensive income (loss) on the unaudited condensed balance sheet at June 30, 2019 includes unrealized gains and losses on the Company’s available-for-sale securities.  

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Summary of Significant Accounting Policies

6 Months Ended

Jun. 30, 2019

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Note 2. Summary of Significant Accounting Policies

During the three and six months ended June 30, 2019, there have been no material changes to the Company’s significant accounting policies as described in the Annual Report on Form 10-K for the fiscal year ended December 31, 2018.  

Recent Accounting Pronouncements

In August 2018, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2018-15, Intangibles – Goodwill and Other – Internal-Use Software, which aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. The Company adopted this pronouncement during the year ended December 31, 2018 on a prospective basis.  The impact on the financial statements are immaterial.

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods and services to customers.  The standard will replace most existing revenue recognition guidance in GAAP when it becomes effective.  ASU 2014-09 is effective for annual reporting periods beginning after December 15, 2018, and interim periods in fiscal years beginning after December 15, 2019. The Company will adopt the new guidance for the annual period ended December 31, 2019, using the modified retrospective approach. The Company is in the process of finalizing the new accounting policies, processes, and internal controls necessary to support the requirements of Topic 606 and is still evaluating the full impact the standard will have on its financial reporting.

In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842), which requires lessees to recognize most leases on their balance sheets as lease liabilities with corresponding right-of-use assets. ASU 2016-02 is effective for fiscal years beginning after December 15, 2019 and interim periods within fiscal years beginning after December 15, 2020.  The Company is evaluating the effect that ASU 2016-02 will have on its financial statements and related disclosures.  The Company has not yet selected a transition method, nor has it determined the effect of the standard on its ongoing financial reporting.

In January 2017, the FASB issued ASU No. 2017-04, Simplifying the Test for Goodwill Impairment, which simplifies the test for goodwill impairment by removing Step 2 which requires a hypothetical purchase price allocation and may require the services of valuation experts. An entity will, therefore, perform the goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount, recognizing an impairment charge for the amount by which the carrying amount exceeds the fair value, not to exceed the total amount of goodwill allocated to the reporting unit. An entity still has the option to perform a qualitative assessment to determine if the quantitative impairment test is necessary. ASU 2017-04 will be effective for the Company in annual periods beginning after December 15, 2020, and interim periods within fiscal years beginning after December 15, 2021, with early adoption permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. The Company has not yet determined whether it will early adopt ASU 2017-04 and is evaluating the impact the standard will have on its ongoing financial reporting.

In June 2016, the FASB issued ASU 2016-13, Financial Instruments-Credit Losses (Topic 326), Measurement of Credit Losses on Financial Instruments. This standard changes the methodology for measuring credit losses on financial instruments and the timing of when such losses are recorded. ASU 2016-13 is effective for fiscal years beginning after December 15, 2020, and interim periods within the fiscal year beginning after December 15, 2021, using a modified retrospective adoption method. The Company continues to evaluate the impact of the standard on its consolidated financial statements.

In May 2019, the FASB issued ASU 2019-05, Financial Instruments-Credit Losses (Topic 326), Targeted Transition Relief, which provides entities that have certain instruments within the scope of ASC 326-20, Financial Instruments-Credit Losses-Measured at Amortized Cost, with an option to irrevocably elect the fair value option for eligible instruments. The effective date and transition methodology for this standard are the same as in ASU 2016-13.

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Net Income (Loss) Per Share

6 Months Ended

Jun. 30, 2019

Earnings Per Share [Abstract]

Net Income (Loss) Per Share

Note 3. Net Income (Loss) Per Share

Basic net income (loss) per share is calculated by dividing net income (loss) by the weighted average shares of common stock outstanding for the period. Diluted net income (loss) per share is calculated by dividing net income (loss) by the weighted average shares of common stock outstanding for the period plus amounts representing the dilutive effect of securities that are convertible into common stock. The Company calculates diluted income (loss) per common share using the treasury stock method and the as-if-converted method, as applicable.

The following table presents the computation of net income (loss) per share:

	Three Months Ended June 30,					Six Months Ended June 30,
	2019		2018			2019		2018
Numerator:
Net income (loss) (in thousands)	$	662	$	(3,190	)	$	998	$	(4,296	)
Denominator:
Weighted average common shares outstanding - basic		9,696,876		9,439,025			9,661,474		9,459,272
Plus dilutive effect of potential common shares		430,843		—			409,826		—
Weighted average common shares outstanding - diluted		10,127,719		9,439,025			10,071,300		9,459,272
Net income (loss) per share:
Basic	$	0.07	$	(0.34	)	$	0.10	$	(0.45	)
Diluted	$	0.07	$	(0.34	)	$	0.10	$	(0.45	)

Diluted weighted average common shares outstanding for the three months ended June 30, 2019 includes 8,528 warrants and 422,315 options outstanding. Diluted weighted average common shares outstanding for the six months ended June 30, 2019 includes 4,614 warrants and 405,212 options outstanding.

Potentially dilutive securities not included in the calculation of diluted net income (loss) per share because to do so would be anti-dilutive are as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
	2019		2018		2019		2018
Employee stock options		67,104		1,152,520		257,981		1,349,833
Warrants outstanding		—		51,003		—		51,003
Total		67,104		1,203,523		257,981		1,400,836

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Cash, Cash Equivalents and Short-Term Investments

6 Months Ended

Jun. 30, 2019

Cash And Cash Equivalents [Abstract]

Cash, Cash Equivalents and Short-Term Investments

Note 4. Cash, Cash Equivalents and Short-Term Investments

The following tables show the Company’s cash and cash equivalents and short-term investments by significant investment category as of June 30, 2019 and December 31, 2018 (in thousands):

	June 30, 2019
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value		Cash and Cash Equivalents		Short-Term Investments
Cash	$	2,564	$	—	$	—	$	2,564	$	2,564	$	—
Level 1 (1):
Money market funds		6,528		—		—		6,528		6,528		—
U.S. treasury securities		4,990		6		—		4,996		—		4,996
Subtotal		11,518		6		—		11,524		6,528		4,996
Level 2 (2):
Commercial paper		9,678		—		—		9,678		1,548		8,130
Corporate debt obligations		3,038		4		—		3,042		—		3,042
Repurchase agreements		3,001		—		—		3,001		3,001		—
Asset-backed securities		4,401		3		—		4,404		—		4,404
Subtotal		20,118		7		—		20,125		4,549		15,576
Total	$	34,200	$	13		—	$	34,213	$	13,641	$	20,572

	December 31, 2018
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value		Cash and Cash Equivalents		Short-Term Investments
Cash	$	3,044	$	—	$	—		$	3,044	$	3,044	$	—
Level 1 (1):
Money market funds		5,482		—		—			5,482		5,482		—
U.S. treasury securities		1,988		—		—			1,988		—		1,988
Subtotal		7,470		—		—			7,470		5,482		1,988
Level 2 (2):
Commercial paper		10,639		—		—			10,639		2,095		8,544
Corporate debt obligations		5,964		—		(7	)		5,957		—		5,957
Repurchase agreements		3,000		—		—			3,000		3,000		—
Asset-backed securities		3,682		—		(2	)		3,680		—		3,680
Subtotal		23,285		—		(9	)		23,276		5,095		18,181
Total	$	33,799		—	$	(9	)	$	33,790	$	13,621	$	20,169

⁽¹⁾ Level 1 fair value estimates are based on quoted prices in active markets for identical assets or liabilities.

⁽²⁾ Level 2 fair value estimates are based on observable inputs other than quoted prices in active markets for identical assets and liabilities, quoted prices for identical or similar assets or liabilities in inactive markets, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.  

The Company’s investments were primarily valued based upon one or more valuations reported by its investment accounting and reporting service provider.  The investment service provider values the securities using a hierarchical security pricing model that relies primarily on valuations provided by a third-party pricing vendor.  Such valuations may be based on trade prices in active markets for identical assets or liabilities (Level 1 inputs) or valuation models using inputs that are observable either directly or indirectly (Level 2 inputs), such as quoted prices for similar assets or liabilities, yield curve, volatility factors, credit spreads, default rates, loss severity, current market and contractual prices for underlying instruments or debt, broker and dealer quotes, as well as other relevant economic measures.  The Company performs certain procedures to corroborate the fair value of its holdings, including comparing valuations obtained from its investment service provider with other pricing sources to validate the reasonableness of the valuations.    

The Company typically invests in highly rated securities, and its investment policy limits the amount of credit exposure to any one issuer.  The policy requires investments in fixed income instruments denominated and payable in U.S. dollars only and requires investments to be investment grade, with a primary objective of minimizing the potential risk of principal loss.  

The Company considers the declines in market value of its short-term investments to be temporary in nature.  Fair values were determined for each individual security in the investment portfolio.  When evaluating an investment for other-than-temporary impairment, the Company reviews factors such as length of time and extent to which fair value has been below its cost basis, the financial condition of the issuer and any changes thereto, changes in market interest rates and the Company’s intent to sell, or whether it is more likely than not it will be required to sell the investment before recovery of the investment’s cost basis.  As of June 30, 2019, the Company does not consider any of its investments to be other-than temporarily impaired.

Contractual maturities of short-term investments as of June 30, 2019 are as follows (in thousands):

	Estimated Fair Value
Due within one year	$	20,572

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Property and Equipment

6 Months Ended

Jun. 30, 2019

Property Plant And Equipment [Abstract]

Property and Equipment

Note 5. Property and Equipment

Depreciation and amortization of property and equipment is calculated on the straight-line method based on estimated useful lives of six to ten years for tenant improvements and three to fifteen years for all other property and equipment.  Property and equipment consist of the following (in thousands):

	June 30, 2019			December 31, 2018
Lab equipment	$	2,953		$	2,503
Computer equipment		172			113
Computer software		240			194
Furniture and fixtures		281			267
Tenant improvements		900			895
Other office equipment		126			126
		4,672			4,098
Less accumulated depreciation		(2,965	)		(2,697	)
	$	1,707		$	1,401

Depreciation expense was $91,000 and $145,000 for the three months ended June 30, 2019 and 2018, respectively, and $268,000 and $266,000 for the six months ended June 30, 2019 and 2018, respectively.

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Intangible Assets

6 Months Ended

Jun. 30, 2019

Goodwill And Intangible Assets Disclosure [Abstract]

Intangible Assets

Note 6. Intangible Assets

The following is a summary of the Company’s acquired intangible assets (dollars in thousands):

	Weighted Average Amortization Period (years)		Gross Carrying Amount		Accumulated Amortization		Intangibles, Net
June 30, 2019
Customer relationships		10	$	4,830	$	1,479	$	3,351
Developed technologies		9		1,080		341		739
Tradename		3		120		86		34
Total intangible assets, net			$	6,030	$	1,906	$	4,124
December 31, 2018
Customer relationships		10	$	4,830	$	1,237	$	3,593
Developed technologies		9		1,080		274		806
Tradename		3		120		67		53
Total intangible assets, net			$	6,030	$	1,578	$	4,452

The estimated annual amortization of intangible assets for the next five years and thereafter is shown in the following table (in thousands):

	Estimated Future Amortization
2019 (remaining six months)	$	(328	)
2020		(628	)
2021		(598	)
2022		(563	)
2023		(563	)
Thereafter		(1,444	)
Total	$	(4,124	)

Actual amortization expense to be reported in future periods could differ from these estimates as a result of acquisitions, divestitures, asset impairments, among other factors. Amortization expense was $164,000 and $169,000 for the three months ended June 30, 2019 and 2018, respectively, and $328,000 and $338,000 for the six months ended June 30, 2019 and 2018, respectively.

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Notes Payable and Line of Credit

6 Months Ended

Jun. 30, 2019

Long Term Debt [Abstract]

Notes Payable and Line of Credit

Note 7. Notes Payable and Line of Credit

In December 2015 the Company amended its amended and restated loan and security agreement with Silicon Valley Bank to include a term loan in the amount of $4.0 million. The loan requires 36 monthly installments of interest and principal. The loan matured on December 1, 2018, The interest rate was fixed at 5.0%.  

In January 2018 the Company entered into a second amended and restated loan and security agreement (the Amended Loan Agreement) with Silicon Valley Bank.  The Amended Loan Agreement modified the amended and restated loan and security agreement to, among other things, increase the aggregate principal amount available under the revolving line of credit from $3.0 million to $10.0 million. It also removed a minimum EBITDA requirement previously applicable to the line of credit and former term loan and maintained the liquidity ratio financial covenant such that the Company must maintain a ratio of cash and cash equivalents plus accounts receivable to outstanding debt under the Amended Loan Agreement minus deferred revenue of 1.25 to 1.00. The Amended Loan Agreement also set a borrowing base limit of 80% of the aggregate face amount of all eligible receivables. No balance was owed on the line of credit as of June 30, 2019 and December 31, 2018.

The Company will be required to pay interest on borrowings outstanding, if any, under the revolving line of credit at a floating rate per annum equal to 1% above the Wall Street Journal prime rate (5.5% as of June 30, 2019) (or, if unavailable, the Silicon Valley Bank prime rate) on a monthly basis, so long as the Company maintains a liquidity ratio of cash and cash equivalents plus accounts receivable to outstanding debt under the Amended Loan Agreement minus deferred revenue of 1.25 to 1.00.  If this liquidity ratio is not met, the Company will be subject to a minimum interest charge of $3,000 per month and borrowings outstanding, if any, under the revolving line of credit will accrue interest at a floating rate per annum equal to 2% above the Wall Street Journal prime rate (5.5% as of June 30, 2019) (or, if unavailable the Silicon Valley Bank prime rate) on a monthly basis.  Prior to the amendment in January 2018, the revolving line of credit bore interest rate at the U.S. prime rate plus 1.25%.  The revolving line of credit matures on January 31, 2020.    

Silicon Valley Bank maintains a first security interest over the Company’s assets, excluding intellectual property, for which Silicon Valley Bank has received a negative pledge.  The Amended Loan Agreement contains customary affirmative and negative covenants and events of default applicable to the Company and any of its subsidiaries.    

The Company was in compliance with its financial covenants in the Amended Loan Agreement as of June 30, 2019.

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Treasury Stock

6 Months Ended

Jun. 30, 2019

Equity [Abstract]

Treasury Stock

Note 8. Treasury Stock

In August 2017, the Company’s Board of Directors (the Board) approved a share repurchase program pursuant to which the Company may purchase up to $7.0 million of shares of its common stock over the twelve-month period following the establishment of the program.  The repurchases under the share repurchase program are made from time to time in the open market or in privately negotiated transactions and are funded from the Company’s working capital. Repurchases will be made in compliance with Rule 10b-18 of the Securities Exchange Act of 1934, as amended, subject to market conditions, available liquidity, cash flow, applicable legal requirements and other factors.  All shares of common stock repurchased under the Company’s share repurchase program will be returned to the status of authorized but unissued shares of common stock.  On August 7, 2018, the Board approved an extension to the existing share repurchase program for an additional twelve-month period ending August 14, 2019.

During the three and six months ended June 30, 2019, the Company repurchased 0 and 14,350 shares of common stock, respectively, under the share repurchase program.  These shares were repurchased at an average price per share of $13.44 per share, for a total cost of $193,000.  As of June 30, 2019, the Company has repurchased a total of $3.6 million in common stock under the share repurchase program.     

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Income Taxes

6 Months Ended

Jun. 30, 2019

Income Tax Disclosure [Abstract]

Income Taxes

Note 9. Income Taxes

The Company’s effective income tax rate was 4.97% and (2.08)% for the six months ended June 30, 2019 and 2018, respectively. The variance from the U.S. federal statutory tax rate of 21% for each of the six months ended June 30, 2019 and 2018 was primarily attributable to the utilization of deferred tax attributes that had a full valuation allowance.    

Management assesses its deferred tax assets quarterly to determine whether all or any portion of the asset is more likely than not unrealizable under Accounting Standards Codification (ASC) Topic 740.  The Company is required to establish a valuation allowance for any portion of the asset that management concludes is more likely than not to be unrealizable.  The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible.  The Company’s assessment considers all evidence, both positive and negative, including the nature, frequency and severity of any current and cumulative losses, taxable income in carryback years, the scheduled reversal of deferred tax liabilities, tax planning strategies, and projected future taxable income in making this assessment.  At June 30, 2019 and December 31, 2018, the Company has a valuation allowance against net deferred tax assets but for the exclusion of a deferred tax liability generated by goodwill (an indefinite lived intangible) that may not be considered a future source of taxable income in evaluating the need for a valuation allowance.

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Stockholders' Equity

6 Months Ended

Jun. 30, 2019

Class Of Stock Disclosures [Abstract]

Stockholders' Equity

Note 10. Stockholders’ Equity

Shares Reserved for Future Issuance

The following common stock is reserved for future issuance at⁽¹⁾:

	June 30, 2019			December31, 2018
Warrants issued and outstanding		51,003			51,003
Stock option awards issued and outstanding		1,553,169			1,407,049
Authorized for grants under the 2016 Equity Incentive Plan		477,477	(2)		463,491
Authorized for grants under the 2016 Employee Stock Purchase Plan		196,011	(3)		100,000
		2,277,660			2,021,543

⁽¹⁾ Treasury stock in the amount of 371,664 and 357,314 as of June 30, 2019 and December 31, 2018, respectively, are excluded from the table above.

⁽²⁾ On January 1, 2019, the number of authorized shares in the 2016 Equity Incentive Plan increased by 384,045 shares pursuant to the evergreen provisions of the 2016 Equity Incentive Plan.

⁽³⁾ On January 1, 2019, the number of authorized shares in the 2016 Employee Stock Purchase Plan increased by 96,011 shares pursuant to the evergreen provisions of the 2016 Employee Stock Purchase Plan.

The Company maintains the Employee Stock Purchase Plan (ESPP) that provides employees an opportunity to purchase common stock through payroll deductions. The ESPP is implemented through consecutive 6-month offering periods commencing on March 1 and September 1 of each year. The first offering period under the ESPP commenced on March 1, 2019.  The purchase price is set at 85% of the fair market value of the Company's common stock on either the first or last trading day of the offering period, whichever is lower, and annual contributions are limited to the lower of 20% of an employee's eligible compensation or such other limits as apply under Section 423 of the Internal Revenue Code for such plans such as the ESPP. The ESPP is intended to qualify as an employee stock purchase plan for purposes of Section 423 of the Internal Revenue Code.

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Stock Options

6 Months Ended

Jun. 30, 2019

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Stock Options

Note 11. Stock Options

The following table summarizes the outstanding stock option activity during the periods indicated:

				Weighted average
	Number of shares			Exercise price		Remaining contractual term (years)
Balance at December 31, 2018		1,407,049		$	8.73
Granted		395,485			11.39
Exercised		(128,461	)		4.58
Expired/Forfeited		(120,904	)		10.89
Balance at June 30, 2019		1,553,169		$	9.58		8.1
Vested and exercisable at June 30, 2019		701,862		$	8.19		7.1
Vested and expected to vest at June 30, 2019		1,553,169		$	9.58		8.1

The weighted average grant date fair value of options granted during the six months ended June 30, 2019 and for the year ended December 31, 2018 was $4.00 and $3.97, respectively. For fully vested stock options, the aggregate intrinsic value as of June 30, 2019 and December 31, 2018 was $4,293,000 and $2,485,000, respectively. For stock options expected to vest, the aggregate intrinsic value as of June 30, 2019 and December 31, 2018 was $2,994,000 and $993,000, respectively.

At June 30, 2019 and December 31, 2018, there was $3,255,000 and $2,781,000, respectively, of total unrecognized compensation cost related to unvested stock options granted under the Company’s equity plans. That cost is expected to be recognized over the next three years and is based on the date the options were granted.

During the six months ended June 30, 2019, the Company granted 95,478 Restricted Stock Units (RSUs) at a weighted average grant date fair value of $11.35 per share. No RSUs vested during the three and six months ended June 30, 2019. As of June 30, 2019, the Company has 96,605 RSUs outstanding at a weighted average grant date fair value of $11.42 per share and a weighted average remaining contractual term of 2.1 years. As of June 30, 2019, there was $986,000 of total unrecognized compensation cost related to unvested RSUs.

The Company currently uses authorized and unissued shares to satisfy share award exercises.

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Commitments and Contingencies

6 Months Ended

Jun. 30, 2019

Commitments And Contingencies Disclosure [Abstract]

Commitments and Contingencies

Note 12. Commitments and Contingencies

(a) Operating Leases

The Company has entered into lease agreements for office space and research facilities in San Diego County, California; Melbourne, Florida; Scottsdale, Arizona; Taipei, Taiwan; Shenzhen and Jiangsu, China; and Cambridgeshire, United Kingdom. Rent expense was $255,000 and $234,000 for the three months ended June 30, 2019 and 2018, respectively, and $490,000 and $467,000 for the six months ended June 30, 2019 and 2018, respectively. The longest lease expires in June 2024. The Company moved into its facility in San Diego, California during the year ended December 31, 2014. The San Diego facility lease agreement included a tenant improvement allowance which provided for the landlord to pay for tenant improvements on behalf of the Company up to $515,000. Based on the terms of this landlord incentive and involvement of the Company in the construction process, the leasehold improvements purchased under the landlord incentive were determined to be property of the Company.

The future minimum lease payments required under operating leases in effect at June 30, 2019 were as follows (in thousands):

Year ending:
2019 (remaining six months)	$	539
2020		772
2021		339
2022		104
2023		72
2024		33
	$	1,859

(b) Indemnification

In some agreements to which the Company is a party, the Company has agreed to indemnify the other party for certain matters, including, but not limited to, product liability and intellectual property. To date, there have been no known events or circumstances that have resulted in any material costs related to these indemnification provisions and no liabilities have been recorded in the accompanying financial statements.

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Concentration of Credit Risk

6 Months Ended

Jun. 30, 2019

Risks And Uncertainties [Abstract]

Concentration of Credit Risk

Note 13. Concentration of Credit Risk

(a) Concentration of Sales and Accounts Receivable

The following represents customers that accounted for 10% or more of total revenue during the three and six months ended June 30, 2019 and 2018 and customers that accounted for 10% or more of total trade accounts receivable at June 30, 2019 and 2018.  

	Three Months Ended June 30,				Six Months Ended June 30,
	2019		2018		2019		2018
Percentage of net revenue
Customer A	37%		37%		39%		34%
Customer B		15		7		12		7
Customer C		10		10		6		7
	As of June 30,
	2019		2018
Percentage of gross trade accounts receivable
Customer A	44%		21%
Customer B		15		6
Customer C		8		19

(b) Revenue by Geography

Net revenue by geographic area are as follows. Revenue is attributed by geographic location based on the bill-to location of the Company’s customers.

	Three Months Ended June 30,				Six Months Ended June 30,
	2019		2018		2019		2018
Percentage of net revenue
China	75%		76%		73%		70%
Other Asia		3		4		5		6
North America		20		15		19		18
Europe		2		5		3		6

Although the Company ships the majority of antennas to its customers in China (primarily Original Design Manufacturers and distributors), the end-users of the Company’s products are much more geographically diverse.

(c) Concentration of Purchases

During the three and six months ended June 30, 2019, primarily all of the Company’s products were manufactured by two vendors in China and by the Company’s facilities in Arizona.

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Termination Costs

6 Months Ended

Jun. 30, 2019

Restructuring And Related Activities [Abstract]

Termination Costs

Note 14. Termination Costs

On June 30, 2018, the Company terminated a marketing-related agreement to better align its sales and marketing efforts with its longer-term growth objectives and near-to-intermediate term profitability goals.  In consideration of terminating the agreement, the Company paid $1.3 million in termination costs.  The termination costs were included in sales and marketing expense on the unaudited condensed statements of operations for the three and six months ended June 30, 2018.  

On May 2, 2018, Charles Myers, the Company’s Chief Executive Officer, President and member of the Board resigned from all positions with the Company, effective immediately, to pursue other opportunities.  The Board accepted Mr. Myers resignation on May 2, 2018.  Mr. Myer’s decision to resign was not related to a disagreement with the Company over any of its operations, policies, or practices.  

In connection with his resignation, Mr. Myers, upon a general release of claims as set forth in his employment agreement, received a lump sum cash payment in the amount of $484,000; a lump sum cash payment in the amount of $3,200 covering twelve months of monthly premiums for disability insurance under the Company’s disability insurance plan; a lump sum cash payment in the amount of $20,000 covering certain other employment benefits; the acceleration of all his unvested options for a total of 282,994 shares and the continuation of his health coverage pursuant to COBRA at the Company’s expense for a period of twelve months following his last day of employment.  In connection with Mr. Myers’ resignation, the Company recognized stock compensation expense of $1.2 million for the three months ended June 30, 2018.  Mr. Myer’s costs were included in general and administrative expense on the unaudited condensed statements of operations for the three and six months ended June 30, 2018. As of June 30, 2019, there were no further amounts owed to Mr.  Myers.

On April 2, 2018, Glenn Selbo, the Company’s Chief Operating Officer, resigned from his position with the Company.  Following his resignation, Mr. Selbo began providing consulting services to the Company.  Mr. Selbo’s outstanding stock options continue to vest during the term of his consulting services.  

In connection with his resignation, Mr. Selbo, upon a general release of claims as set forth in his employment agreement, received a lump sum cash payment in the amount of $150,000 and the continuation of his health coverage pursuant to COBRA at the Company’s expense for a period of six months following his last day of employment. Mr. Selbo’s costs were included in sales and marketing expense on the unaudited condensed statements of operations for the three and six months ended June 30, 2018.  As of June 30, 2019, there are no further amounts owed to Mr. Selbo.

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Basis of Presentation (Policies)

6 Months Ended

Jun. 30, 2019

Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation

The accompanying unaudited condensed financial statements have been prepared in accordance with U.S. generally accepted accounting principles (GAAP) and applicable rules and regulations of the Securities and Exchange Commission (SEC) regarding interim financial reporting. Certain information and note disclosures normally included in the financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations. Interim financial results are not necessarily indicative of results anticipated for the full year. As such, the information included in this quarterly report on Form 10-Q should be read in conjunction with the financial statements and accompanying notes included in the Company’s Annual Report on Form 10-K for the fiscal year ended December 31, 2018, from which the balance sheet information herein was derived.

The unaudited condensed balance sheet as of December 31, 2018 included herein was derived from the audited financial statements as of that date but does not include all disclosures including notes required by GAAP.

The unaudited condensed statements of operations for the three and six months ended June 30, 2019 and 2018, and the balance sheet data as of June 30, 2019 have been prepared on the same basis as the audited financial statements.

In the opinion of management, the accompanying unaudited condensed financial statements reflect all adjustments, consisting of normal and recurring adjustments, necessary for a fair presentation of results of the Company’s operations and financial position for the interim periods, but are not necessarily indicative of the results of operations to be anticipated for the full year ending December 31, 2019 or for any future period.   

Segment Information

Segment Information

The Company’s operations are located primarily in the United States, and most of its assets are located in San Diego, California and Scottsdale, Arizona. The Company operates in one segment related to the sale of antenna products. The Company’s chief operating decision-maker is its chief executive officer, who reviews operating results on an aggregate basis and manages the Company’s operations as a single operating segment.

Use of Estimates

Use of Estimates

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Significant items subject to such estimates and assumptions include valuation of intangible assets and goodwill.

Reclassifications

Reclassifications

Certain amounts in the prior period financial statements have been reclassified to conform to the presentation of the current period financial statements

Fair Value Measurements

Fair Value Measurements

The carrying values of the Company’s financial instruments, including cash and cash equivalents, trade accounts receivable, accounts payable, and accrued liabilities approximate their fair values due to the short maturity of these instruments.

Fair value measurements are market-based measurements, not entity-specific measurements. Therefore, fair value measurements are determined based on the assumptions that market participants would use in pricing the asset or liability. The Company follows a three-level hierarchy to prioritize the inputs used in the valuation techniques to derive fair values. The basis for fair value measurements for each level within the hierarchy is described below:

• Level 1: Quoted prices in active markets for identical assets or liabilities.

• Level 2: Quoted prices for similar assets or liabilities in active markets; quoted prices for identical or similar instruments in markets that are not active; and model-derived valuations in which all significant inputs are observable in active markets.

• Level 3: Valuations derived from valuation techniques in which one or more significant inputs are unobservable in active markets.

Cash Equivalents and Short Term Investments

Cash Equivalents and Short-Term Investments

Cash equivalents are comprised of short-term, highly liquid investments with maturities of 90 days or less at the date of purchase.  

Short-term investments consist predominantly of commercial paper, corporate debt securities, U.S. Treasury securities and asset backed securities.  The Company classifies short-term investments based on the facts and circumstances surrounding the investments at the time of purchase and evaluates such classification as of each balance sheet date.  All short-term investments are classified as available-for-sale securities as of June 30, 2019 and are recorded at estimated fair value.  Unrealized gains and losses for available-for-sale securities are included in accumulated other comprehensive income (loss), a component of stockholders’ equity.  Realized gains and losses are included in other income, in the unaudited condensed statements of operations.  The Company evaluates its investments to determine whether those with unrealized loss positions are other than temporarily impaired.  Impairments are considered to be other than temporary if they are related to deterioration in credit risk or if it is likely that the Company will sell the securities before recovery of their cost basis.

Inventory

Inventory

The majority of the Company’s products are manufactured by third parties that retain ownership of the inventory until title is transferred to the customer at the shipping point.  In certain instances, shipping terms are delivery at place and the Company is responsible for arranging transportation and delivery of goods ready for unloading at the named place.  The Company bears all risk involved in bringing the goods to the named place and records the related inventory in transit to the customer as inventory on the accompanying balance sheet. The Company also manufactures certain of its products at its facility located in Scottsdale, Arizona.

Inventory is stated at the lower of cost or net realizable value.  For items manufactured by the Company, cost is determined using the weighted average cost method.  For items manufactured by third parties, cost is determined using the first-in, first-out (FIFO) method.  Any adjustments to reduce the cost of inventories to their net realizable value are recognized in earnings in the current period.  As of June 30, 2019, the Company’s inventories consist primarily of raw materials.  Provisions for excess and obsolete inventories are estimated based on product life cycles, quality issues, and historical experience.  As of June 30, 2019, there is no provision for excess and obsolete inventories.

Accumulated Other Comprehensive Income (Loss)

Accumulated Other Comprehensive Income (Loss)

Comprehensive income (loss) is comprised of net income (loss) and other comprehensive income (loss).  Accumulated other comprehensive income (loss) on the unaudited condensed balance sheet at June 30, 2019 includes unrealized gains and losses on the Company’s available-for-sale securities.  

Recent Accounting Pronouncements

Recent Accounting Pronouncements

In August 2018, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2018-15, Intangibles – Goodwill and Other – Internal-Use Software, which aligns the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software. The Company adopted this pronouncement during the year ended December 31, 2018 on a prospective basis.  The impact on the financial statements are immaterial.

In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods and services to customers.  The standard will replace most existing revenue recognition guidance in GAAP when it becomes effective.  ASU 2014-09 is effective for annual reporting periods beginning after December 15, 2018, and interim periods in fiscal years beginning after December 15, 2019. The Company will adopt the new guidance for the annual period ended December 31, 2019, using the modified retrospective approach. The Company is in the process of finalizing the new accounting policies, processes, and internal controls necessary to support the requirements of Topic 606 and is still evaluating the full impact the standard will have on its financial reporting.

In February 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842), which requires lessees to recognize most leases on their balance sheets as lease liabilities with corresponding right-of-use assets. ASU 2016-02 is effective for fiscal years beginning after December 15, 2019 and interim periods within fiscal years beginning after December 15, 2020.  The Company is evaluating the effect that ASU 2016-02 will have on its financial statements and related disclosures.  The Company has not yet selected a transition method, nor has it determined the effect of the standard on its ongoing financial reporting.

In January 2017, the FASB issued ASU No. 2017-04, Simplifying the Test for Goodwill Impairment, which simplifies the test for goodwill impairment by removing Step 2 which requires a hypothetical purchase price allocation and may require the services of valuation experts. An entity will, therefore, perform the goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount, recognizing an impairment charge for the amount by which the carrying amount exceeds the fair value, not to exceed the total amount of goodwill allocated to the reporting unit. An entity still has the option to perform a qualitative assessment to determine if the quantitative impairment test is necessary. ASU 2017-04 will be effective for the Company in annual periods beginning after December 15, 2020, and interim periods within fiscal years beginning after December 15, 2021, with early adoption permitted for interim or annual goodwill impairment tests performed on testing dates after January 1, 2017. The Company has not yet determined whether it will early adopt ASU 2017-04 and is evaluating the impact the standard will have on its ongoing financial reporting.

In June 2016, the FASB issued ASU 2016-13, Financial Instruments-Credit Losses (Topic 326), Measurement of Credit Losses on Financial Instruments. This standard changes the methodology for measuring credit losses on financial instruments and the timing of when such losses are recorded. ASU 2016-13 is effective for fiscal years beginning after December 15, 2020, and interim periods within the fiscal year beginning after December 15, 2021, using a modified retrospective adoption method. The Company continues to evaluate the impact of the standard on its consolidated financial statements.

In May 2019, the FASB issued ASU 2019-05, Financial Instruments-Credit Losses (Topic 326), Targeted Transition Relief, which provides entities that have certain instruments within the scope of ASC 326-20, Financial Instruments-Credit Losses-Measured at Amortized Cost, with an option to irrevocably elect the fair value option for eligible instruments. The effective date and transition methodology for this standard are the same as in ASU 2016-13.

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Net Income (Loss) Per Share (Tables)

6 Months Ended

Jun. 30, 2019

Earnings Per Share [Abstract]

Summary of Computation of Net Income (Loss) Per Share

The following table presents the computation of net income (loss) per share:

	Three Months Ended June 30,					Six Months Ended June 30,
	2019		2018			2019		2018
Numerator:
Net income (loss) (in thousands)	$	662	$	(3,190	)	$	998	$	(4,296	)
Denominator:
Weighted average common shares outstanding - basic		9,696,876		9,439,025			9,661,474		9,459,272
Plus dilutive effect of potential common shares		430,843		—			409,826		—
Weighted average common shares outstanding - diluted		10,127,719		9,439,025			10,071,300		9,459,272
Net income (loss) per share:
Basic	$	0.07	$	(0.34	)	$	0.10	$	(0.45	)
Diluted	$	0.07	$	(0.34	)	$	0.10	$	(0.45	)

Summary of Potentially Dilutive Securities

Potentially dilutive securities not included in the calculation of diluted net income (loss) per share because to do so would be anti-dilutive are as follows:

	Three Months Ended June 30,				Six Months Ended June 30,
	2019		2018		2019		2018
Employee stock options		67,104		1,152,520		257,981		1,349,833
Warrants outstanding		—		51,003		—		51,003
Total		67,104		1,203,523		257,981		1,400,836

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Cash, Cash Equivalents and Short-Term Investments (Tables)

6 Months Ended

Jun. 30, 2019

Cash And Cash Equivalents [Abstract]

Schedule of Cash and Cash Equivalents and Short-Term Investments by Significant Investment Category

The following tables show the Company’s cash and cash equivalents and short-term investments by significant investment category as of June 30, 2019 and December 31, 2018 (in thousands):

	June 30, 2019
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Estimated Fair Value		Cash and Cash Equivalents		Short-Term Investments
Cash	$	2,564	$	—	$	—	$	2,564	$	2,564	$	—
Level 1 (1):
Money market funds		6,528		—		—		6,528		6,528		—
U.S. treasury securities		4,990		6		—		4,996		—		4,996
Subtotal		11,518		6		—		11,524		6,528		4,996
Level 2 (2):
Commercial paper		9,678		—		—		9,678		1,548		8,130
Corporate debt obligations		3,038		4		—		3,042		—		3,042
Repurchase agreements		3,001		—		—		3,001		3,001		—
Asset-backed securities		4,401		3		—		4,404		—		4,404
Subtotal		20,118		7		—		20,125		4,549		15,576
Total	$	34,200	$	13		—	$	34,213	$	13,641	$	20,572

	December 31, 2018
	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value		Cash and Cash Equivalents		Short-Term Investments
Cash	$	3,044	$	—	$	—		$	3,044	$	3,044	$	—
Level 1 (1):
Money market funds		5,482		—		—			5,482		5,482		—
U.S. treasury securities		1,988		—		—			1,988		—		1,988
Subtotal		7,470		—		—			7,470		5,482		1,988
Level 2 (2):
Commercial paper		10,639		—		—			10,639		2,095		8,544
Corporate debt obligations		5,964		—		(7	)		5,957		—		5,957
Repurchase agreements		3,000		—		—			3,000		3,000		—
Asset-backed securities		3,682		—		(2	)		3,680		—		3,680
Subtotal		23,285		—		(9	)		23,276		5,095		18,181
Total	$	33,799		—	$	(9	)	$	33,790	$	13,621	$	20,169

⁽¹⁾ Level 1 fair value estimates are based on quoted prices in active markets for identical assets or liabilities.

⁽²⁾ Level 2 fair value estimates are based on observable inputs other than quoted prices in active markets for identical assets and liabilities, quoted prices for identical or similar assets or liabilities in inactive markets, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.  

Schedule of Contractual Maturities of Short-term Investments

Contractual maturities of short-term investments as of June 30, 2019 are as follows (in thousands):

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Property and Equipment (Tables)

6 Months Ended

Jun. 30, 2019

Property Plant And Equipment [Abstract]

Schedule of Property and Equipment

Depreciation and amortization of property and equipment is calculated on the straight-line method based on estimated useful lives of six to ten years for tenant improvements and three to fifteen years for all other property and equipment.  Property and equipment consist of the following (in thousands):

	June 30, 2019			December 31, 2018
Lab equipment	$	2,953		$	2,503
Computer equipment		172			113
Computer software		240			194
Furniture and fixtures		281			267
Tenant improvements		900			895
Other office equipment		126			126
		4,672			4,098
Less accumulated depreciation		(2,965	)		(2,697	)
	$	1,707		$	1,401

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Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2019

Goodwill And Intangible Assets Disclosure [Abstract]

Summary of Acquired Intangible Assets

The following is a summary of the Company’s acquired intangible assets (dollars in thousands):

	Weighted Average Amortization Period (years)		Gross Carrying Amount		Accumulated Amortization		Intangibles, Net
June 30, 2019
Customer relationships		10	$	4,830	$	1,479	$	3,351
Developed technologies		9		1,080		341		739
Tradename		3		120		86		34
Total intangible assets, net			$	6,030	$	1,906	$	4,124
December 31, 2018
Customer relationships		10	$	4,830	$	1,237	$	3,593
Developed technologies		9		1,080		274		806
Tradename		3		120		67		53
Total intangible assets, net			$	6,030	$	1,578	$	4,452

Schedule of Estimated Annual Amortization of Intangible Assets

The estimated annual amortization of intangible assets for the next five years and thereafter is shown in the following table (in thousands):

	Estimated Future Amortization
2019 (remaining six months)	$	(328	)
2020		(628	)
2021		(598	)
2022		(563	)
2023		(563	)
Thereafter		(1,444	)
Total	$	(4,124	)

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Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2019

Class Of Stock Disclosures [Abstract]

Schedule of Common Stock Reserved for Future Issuance

The following common stock is reserved for future issuance at⁽¹⁾:

	June 30, 2019			December31, 2018
Warrants issued and outstanding		51,003			51,003
Stock option awards issued and outstanding		1,553,169			1,407,049
Authorized for grants under the 2016 Equity Incentive Plan		477,477	(2)		463,491
Authorized for grants under the 2016 Employee Stock Purchase Plan		196,011	(3)		100,000
		2,277,660			2,021,543

⁽¹⁾ Treasury stock in the amount of 371,664 and 357,314 as of June 30, 2019 and December 31, 2018, respectively, are excluded from the table above.

⁽²⁾ On January 1, 2019, the number of authorized shares in the 2016 Equity Incentive Plan increased by 384,045 shares pursuant to the evergreen provisions of the 2016 Equity Incentive Plan.

⁽³⁾ On January 1, 2019, the number of authorized shares in the 2016 Employee Stock Purchase Plan increased by 96,011 shares pursuant to the evergreen provisions of the 2016 Employee Stock Purchase Plan.

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Stock Options (Tables)

6 Months Ended

Jun. 30, 2019

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

Summary of Outstanding Stock Option Activity

The following table summarizes the outstanding stock option activity during the periods indicated:

				Weighted average
	Number of shares			Exercise price		Remaining contractual term (years)
Balance at December 31, 2018		1,407,049		$	8.73
Granted		395,485			11.39
Exercised		(128,461	)		4.58
Expired/Forfeited		(120,904	)		10.89
Balance at June 30, 2019		1,553,169		$	9.58		8.1
Vested and exercisable at June 30, 2019		701,862		$	8.19		7.1
Vested and expected to vest at June 30, 2019		1,553,169		$	9.58		8.1

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Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2019

Commitments And Contingencies Disclosure [Abstract]

Schedule of Future Minimum Lease Payments Under Operating Leases

The future minimum lease payments required under operating leases in effect at June 30, 2019 were as follows (in thousands):

Year ending:
2019 (remaining six months)	$	539
2020		772
2021		339
2022		104
2023		72
2024		33
	$	1,859

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Concentration of Credit Risk (Tables)

6 Months Ended

Jun. 30, 2019

Risks And Uncertainties [Abstract]

Schedule of Concentration of Sales and Accounts Receivable

The following represents customers that accounted for 10% or more of total revenue during the three and six months ended June 30, 2019 and 2018 and customers that accounted for 10% or more of total trade accounts receivable at June 30, 2019 and 2018.  

	Three Months Ended June 30,				Six Months Ended June 30,
	2019		2018		2019		2018
Percentage of net revenue
Customer A	37%		37%		39%		34%
Customer B		15		7		12		7
Customer C		10		10		6		7
	As of June 30,
	2019		2018
Percentage of gross trade accounts receivable
Customer A	44%		21%
Customer B		15		6
Customer C		8		19

Schedule of Revenue by Geographic area

Net revenue by geographic area are as follows. Revenue is attributed by geographic location based on the bill-to location of the Company’s customers.

	Three Months Ended June 30,				Six Months Ended June 30,
	2019		2018		2019		2018
Percentage of net revenue
China	75%		76%		73%		70%
Other Asia		3		4		5		6
North America		20		15		19		18
Europe		2		5		3		6

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Basis of Presentation - Additional Information (Details)	6 Months Ended
	Jun. 30, 2019 Segment
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Number of operating segments	1

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Net Income (Loss) Per Share - Summary of Computation of Net Income (Loss) Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Numerator:
Net income (loss)	$ 662	$ (3,190)	$ 998	$ (4,296)
Denominator:
Basic	9,696,876	9,439,025	9,661,474	9,459,272
Plus dilutive effect of potential common shares	430,843		409,826
Weighted average common shares outstanding - diluted	10,127,719	9,439,025	10,071,300	9,459,272
Net income (loss) per share:
Basic	$ 0.07	$ (0.34)	$ 0.10	$ (0.45)
Diluted	$ 0.07	$ (0.34)	$ 0.10	$ (0.45)

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Net Income (Loss) Per Share - Additional Information (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Net Income (Loss) Per Share [Line Items]
Diluted weighted average common shares outstanding	10,127,719	9,439,025	10,071,300	9,459,272
Warrant
Net Income (Loss) Per Share [Line Items]
Diluted weighted average common shares outstanding	8,528		4,614
Options Outstanding
Net Income (Loss) Per Share [Line Items]
Diluted weighted average common shares outstanding	422,315		405,212

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Net Income (Loss) Per Share - Summary of Potentially Dilutive Securities (Details) - shares	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Potentially dilutive securities not included in the calculation of diluted net loss per share	67,104	1,203,523	257,981	1,400,836
Employee Stock Options
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Potentially dilutive securities not included in the calculation of diluted net loss per share	67,104	1,152,520	257,981	1,349,833
Warrants outstanding
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Potentially dilutive securities not included in the calculation of diluted net loss per share		51,003		51,003

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Cash, Cash Equivalents and Short-Term Investments - Schedule of Cash and Cash Equivalents and Short-term Investments by Significant Investment Category (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018	Jun. 30, 2018	Dec. 31, 2017
Cash And Cash Equivalents And Short Term Investments [Line Items]
Cash	$ 2,564	$ 3,044
Short term investments Gross Unrealized Gains	13
Short term investments Gross Unrealized Losses		(9)
Short term investments	20,572	20,169
Cash and cash equivalents and Short term investments, Amortized Cost	34,200	33,799
Cash and cash equivalents and Short term investments, Estimated Fair Value	34,213	33,790
Cash and cash equivalents	13,641	13,621	$ 13,259	$ 15,026
Level 1
Cash And Cash Equivalents And Short Term Investments [Line Items]
Short term investments Gross Unrealized Gains	6
Cash equivalents and Short term investments, Estimated Fair Value	11,524	7,470
Cash equivalents and Short term investments, Amortized Cost	11,518	7,470
Level 2
Cash And Cash Equivalents And Short Term Investments [Line Items]
Short term investments Gross Unrealized Gains	7
Short term investments Gross Unrealized Losses		(9)
Short term investments	15,576	18,181
Cash equivalents and Short term investments, Estimated Fair Value	20,125	23,276
Cash and cash equivalents	4,549	5,095
Cash equivalents and Short term investments, Amortized Cost	20,118	23,285
Money Market Funds | Level 1
Cash And Cash Equivalents And Short Term Investments [Line Items]
Cash equivalents	6,528	5,482
Repurchase Agreements | Level 2
Cash And Cash Equivalents And Short Term Investments [Line Items]
Cash equivalents	3,001	3,000
US Treasury Securities | Level 1
Cash And Cash Equivalents And Short Term Investments [Line Items]
Short Term Investments Amortized Cost	4,990	1,988
Short term investments Gross Unrealized Gains	6
Short term investments	4,996	1,988
Commercial Paper | Level 2
Cash And Cash Equivalents And Short Term Investments [Line Items]
Cash equivalents	1,548	2,095
Short Term Investments Amortized Cost	9,678	10,639
Short term investments	8,130	8,544
Cash equivalents and Short term investments, Estimated Fair Value	9,678	10,639
Corporate Debt Securities | Level 2
Cash And Cash Equivalents And Short Term Investments [Line Items]
Short Term Investments Amortized Cost	3,038	5,964
Short term investments Gross Unrealized Gains	4
Short term investments Gross Unrealized Losses		(7)
Short term investments	3,042	5,957
Asset-backed Securities | Level 2
Cash And Cash Equivalents And Short Term Investments [Line Items]
Short Term Investments Amortized Cost	4,401	3,682
Short term investments Gross Unrealized Gains	3
Short term investments Gross Unrealized Losses		(2)
Short term investments	4,404	3,680
Cash equivalents and Short term investments, Estimated Fair Value	$ 4,404	$ 3,680

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Cash, Cash Equivalents and Short-Term Investments - Schedule of Contractual Maturities of Short-term Investments (Details) $ in Thousands	Jun. 30, 2019 USD ($)
Investments Debt And Equity Securities [Abstract]
Due within one year	$ 20,572

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Property and Equipment - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Property Plant And Equipment [Line Items]
Depreciation expense	$ 91,000	$ 145,000	$ 268,000	$ 266,000
Tenant Improvement | Minimum
Property Plant And Equipment [Line Items]
Property and equipment, estimated useful Life			6 years
Tenant Improvement | Maximum
Property Plant And Equipment [Line Items]
Property and equipment, estimated useful Life			10 years
Property and Equipment, Other Types | Minimum
Property Plant And Equipment [Line Items]
Property and equipment, estimated useful Life			3 years
Property and Equipment, Other Types | Maximum
Property Plant And Equipment [Line Items]
Property and equipment, estimated useful Life			15 years

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Property and Equipment - Schedule of Property and Equipment (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 4,672	$ 4,098
Less accumulated depreciation	(2,965)	(2,697)
Property and equipment, net	1,707	1,401
Lab Equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	2,953	2,503
Computer Equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	172	113
Computer Software
Property Plant And Equipment [Line Items]
Property and equipment, gross	240	194
Furniture and Fixtures
Property Plant And Equipment [Line Items]
Property and equipment, gross	281	267
Tenant Improvements
Property Plant And Equipment [Line Items]
Property and equipment, gross	900	895
Other Office Equipment
Property Plant And Equipment [Line Items]
Property and equipment, gross	$ 126	$ 126

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Intangible Assets - Summary of Acquired Intangible Assets (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Acquired Finite Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 6,030	$ 6,030
Accumulated Amortization	1,906	1,578
Intangibles, Net	$ 4,124	$ 4,452
Customer relationships
Acquired Finite Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (years)	10 years	10 years
Gross Carrying Amount	$ 4,830	$ 4,830
Accumulated Amortization	1,479	1,237
Intangibles, Net	$ 3,351	$ 3,593
Developed technologies
Acquired Finite Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (years)	9 years	9 years
Gross Carrying Amount	$ 1,080	$ 1,080
Accumulated Amortization	341	274
Intangibles, Net	$ 739	$ 806
Tradename
Acquired Finite Lived Intangible Assets [Line Items]
Weighted Average Amortization Period (years)	3 years	3 years
Gross Carrying Amount	$ 120	$ 120
Accumulated Amortization	86	67
Intangibles, Net	$ 34	$ 53

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Intangible Assets - Schedule of Estimated Annual Amortization of Intangible Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Goodwill And Intangible Assets Disclosure [Abstract]
2019 (remaining six months)	$ (328)
2020	(628)
2021	(598)
2022	(563)
2023	(563)
Thereafter	(1,444)
Total	$ (4,124)	$ (4,452)

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Intangible Assets - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Goodwill And Intangible Assets Disclosure [Abstract]
Amortization	$ 164,000	$ 169,000	$ 328,000	$ 338,000

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Notes Payable and Line of Credit - Additional Information (Details) - USD ($)	1 Months Ended		6 Months Ended
	Jan. 31, 2018	Dec. 31, 2015	Jun. 30, 2019	Dec. 31, 2018	Dec. 31, 2017
Silicon Valley Bank | Revolving Credit Facility
Line Of Credit Facility [Line Items]
Line of credit facility allowable amount	$ 10,000,000				$ 3,000,000
Line of credit			$ 0	$ 0
Line of credit facility borrowing base limitation percentage of eligible receivables	80.00%
Liquidity ratio	125.00%
Interest rate fixed percentage	$ 3,000
Line of credit facility floating rate not met	2.00%		5.50%
Line of credit facility maturity date			Jan. 31, 2020
Silicon Valley Bank | Revolving Credit Facility | The Wall Street Journal Prime Rate
Line Of Credit Facility [Line Items]
Basis spread on variable interest rate	1.00%		5.50%
Line Of Credit Facility Interest Rate Description			The Company will be required to pay interest on borrowings outstanding, if any, under the revolving line of credit at a floating rate per annum equal to 1% above the Wall Street Journal prime rate (5.5% as of June 30, 2019) (or, if unavailable, the Silicon Valley Bank prime rate) on a monthly basis, so long as the Company maintains a liquidity ratio of cash and cash equivalents plus accounts receivable to outstanding debt under the Amended Loan Agreement minus deferred revenue of 1.25 to 1.00. If this liquidity ratio is not met, the Company will be subject to a minimum interest charge of $3,000 per month and borrowings outstanding, if any, under the revolving line of credit will accrue interest at a floating rate per annum equal to 2% above the Wall Street Journal prime rate (5.5% as of June 30, 2019) (or, if unavailable the Silicon Valley Bank prime rate) on a monthly basis. Prior to the amendment in January 2018, the revolving line of credit bore interest rate at the U.S. prime rate plus 1.25%. The revolving line of credit matures on January 31, 2020.
Silicon Valley Bank | Revolving Credit Facility | Prime Rate
Line Of Credit Facility [Line Items]
Liquidity ratio	125.00%
Silicon Valley Bank | Revolving Credit Facility | U.S. Prime Rate
Line Of Credit Facility [Line Items]
Basis spread on variable interest rate	1.25%
Loan Agreement With Silicon Valley Bank
Line Of Credit Facility [Line Items]
Loan agreement amount		$ 4,000,000
Term of payments		36 months
Date of maturity		Dec. 01, 2018
Interest rate fixed percentage		5.00%

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Treasury Stock - Additional Information (Details) - Share Repurchase Program August 2017 - USD ($)		1 Months Ended	3 Months Ended	6 Months Ended
	Aug. 07, 2018	Aug. 31, 2017	Jun. 30, 2019	Jun. 30, 2019
Equity Class Of Treasury Stock [Line Items]
Common stock repurchase, value			$ 3,600,000	$ 3,600,000
Common Stock
Equity Class Of Treasury Stock [Line Items]
Stock approved for repurchase, value		$ 7,000,000
Period of stock repurchase program		12 months
Additional period of stock repurchase program	12 months
Stock repurchase, shares			0	14,350
Stock repurchase, average price per share				$ 13.44
Stock repurchase, cost				$ 193,000

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Income Taxes - Additional Information (Details)	6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018
Income Tax Disclosure [Abstract]
Effective income tax rate	4.97%	(2.08%)
U.S. federal statutory tax rate	21.00%	21.00%

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Stockholders' Equity - Schedule of Common Stock Reserved for Future Issuance (Details) - shares	Jun. 30, 2019	Dec. 31, 2018
Class Of Stock [Line Items]
Common stock, reserved for future issuance	2,277,660	2,021,543
Warrants Issued and Outstanding
Class Of Stock [Line Items]
Common stock, reserved for future issuance	51,003	51,003
Stock Option Awards Issued and Outstanding
Class Of Stock [Line Items]
Common stock, reserved for future issuance	1,553,169	1,407,049
Authorized for Grants under the 2016 Equity Incentive Plan
Class Of Stock [Line Items]
Common stock, reserved for future issuance	477,477	463,491
Authorized for grants under the 2016 Employee Stock Purchase Plan
Class Of Stock [Line Items]
Common stock, reserved for future issuance	196,011	100,000

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Stockholders' Equity - Schedule of Common Stock Reserved for Future Issuance (Parenthetical) (Details) - shares	Jan. 01, 2019	Jun. 30, 2019	Dec. 31, 2018
Class Of Stock [Line Items]
Treasury stock, shares at cost		371,664	357,314
2016 Equity Incentive Plan
Class Of Stock [Line Items]
Number of authorized shares increased	384,045
2016 Employee Stock Purchase Plan
Class Of Stock [Line Items]
Number of authorized shares increased	96,011

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Stockholders' Equity - Additional Information (Details) - 2016 Employee Stock Purchase Plan	6 Months Ended
	Jun. 30, 2019
Class Of Stock [Line Items]
Offering period of employee stock purchase plan	6 months
Terms of stock purchase plane	The ESPP is implemented through consecutive 6-month offering periods commencing on March 1 and September 1 of each year.
Purchase price percentage of market value of common stock	85.00%
Limited percentage of annual contribution	20.00%

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Stock Options - Summary of Outstanding Stock Option Activity (Details)	6 Months Ended
	Jun. 30, 2019 $ / shares shares
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Number of shares, Beginning balance | shares	1,407,049
Number of shares, Granted | shares	395,485
Number of shares, Exercised | shares	(128,461)
Number of shares, Expired/Forfeited | shares	(120,904)
Number of shares, Ending balance | shares	1,553,169
Number of shares, Vested and exercisable | shares	701,862
Number of shares, Vested and expected to vest | shares	1,553,169
Weighted average exercise price, Beginning balance | $ / shares	$ 8.73
Weighted average exercise price, Granted | $ / shares	11.39
Weighted average exercise price, Exercised | $ / shares	4.58
Weighted average exercise price, Expired/Forfeited | $ / shares	10.89
Weighted average exercise price, Ending balance | $ / shares	9.58
Weighted average exercise price, Vested and exercisable | $ / shares	8.19
Weighted average exercise price, Vested and expected to vest | $ / shares	$ 9.58
Weighted average remaining contractual term (years)	8 years 1 month 6 days
Weighted average remaining contractual term (years), Vested and exercisable	7 years 1 month 6 days
Weighted average remaining contractual term (years), Vested and expected to vest	8 years 1 month 6 days

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Stock Options - Additional Information (Details) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2019	Dec. 31, 2018
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Weighted average grant-date fair value of options granted	$ 4.00	$ 3.97
Stock options vested aggregate intrinsic value	$ 4,293,000	$ 2,485,000
Stock options expected to vest aggregate intrinsic value	2,994,000	993,000
Restricted Stock
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total unrecognized compensation cost	$ 3,255,000	$ 2,781,000
Unrecognized compensation cost related to unvested stock options and restricted stock granted under the Company's equity plans, period for recognition	3 years
Restricted Stock Units [Member]
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]
Total unrecognized compensation cost	$ 986,000
Restricted stock outstanding	96,605
Weighted average grant date fair value	$ 11.42
Restricted stock granted	95,478
Weighted average price, grant date value	$ 11.35
Restricted stock vested	0
Weighted average remaining contractual term	2 years 1 month 6 days

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Commitments and Contingencies - Additional Information (Detail) - Office Space and Research Facilities Lease - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Commitment And Contingencies [Line Items]
Operating leases, rent expense	$ 255,000	$ 234,000	$ 490,000	$ 467,000
Lease agreement description			The San Diego facility lease agreement included a tenant improvement allowance which provided for the landlord to pay for tenant improvements on behalf of the Company up to $515,000. Based on the terms of this landlord incentive and involvement of the Company in the construction process, the leasehold improvements purchased under the landlord incentive were determined to be property of the Company.
Lease expiration date			Jun. 30, 2024
Maximum
Commitment And Contingencies [Line Items]
Payments for tenant improvements allowance			$ 515,000

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Commitments and Contingencies - Schedule of Future Minimum Lease Payments Under Operating Leases (Detail) $ in Thousands	Jun. 30, 2019 USD ($)
Future minimum lease payment
2019 (remaining six months)	$ 539
2020	772
2021	339
2022	104
2023	72
2024	33
Total future minimum lease payment	$ 1,859

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Concentration of Credit Risk - Additional Information (Details) - Vendor	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
China
Concentration Risk [Line Items]
Number of vendors	2		2
Customer Concentration Risk | Net Revenue
Concentration Risk [Line Items]
Concentration risk percentage	10.00%	10.00%	10.00%	10.00%
Customer Concentration Risk | Net Revenue | China
Concentration Risk [Line Items]
Concentration risk percentage	75.00%	76.00%	73.00%	70.00%
Customer Concentration Risk | Trade Accounts Receivable
Concentration Risk [Line Items]
Concentration risk percentage	10.00%	10.00%	10.00%	10.00%

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Concentration of Credit Risk - Schedule of Concentration of Sales and Accounts Receivable (Details) - Customer Concentration Risk	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Net Revenue
Concentration Risk [Line Items]
Concentration risk percentage	10.00%	10.00%	10.00%	10.00%
Net Revenue | Customer A
Concentration Risk [Line Items]
Concentration risk percentage	37.00%	37.00%	39.00%	34.00%
Net Revenue | Customer B
Concentration Risk [Line Items]
Concentration risk percentage	15.00%	7.00%	12.00%	7.00%
Net Revenue | Customer C
Concentration Risk [Line Items]
Concentration risk percentage	10.00%	10.00%	6.00%	7.00%
Trade Accounts Receivable
Concentration Risk [Line Items]
Concentration risk percentage	10.00%	10.00%	10.00%	10.00%
Trade Accounts Receivable | Customer A
Concentration Risk [Line Items]
Concentration risk percentage			44.00%	21.00%
Trade Accounts Receivable | Customer B
Concentration Risk [Line Items]
Concentration risk percentage			15.00%	6.00%
Trade Accounts Receivable | Customer C
Concentration Risk [Line Items]
Concentration risk percentage			8.00%	19.00%

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Concentration of Credit Risk - Schedule of Revenue by Geography (Details) - Customer Concentration Risk - Net Revenue	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Concentration Risk [Line Items]
Concentration risk percentage	10.00%	10.00%	10.00%	10.00%
China
Concentration Risk [Line Items]
Concentration risk percentage	75.00%	76.00%	73.00%	70.00%
Other Asia
Concentration Risk [Line Items]
Concentration risk percentage	3.00%	4.00%	5.00%	6.00%
North America
Concentration Risk [Line Items]
Concentration risk percentage	20.00%	15.00%	19.00%	18.00%
Europe
Concentration Risk [Line Items]
Concentration risk percentage	2.00%	5.00%	3.00%	6.00%

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Termination Costs - Additional Information (Details) - USD ($)				3 Months Ended	6 Months Ended
	Jun. 30, 2018	May 02, 2018	Apr. 02, 2018	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Restructuring Cost And Reserve [Line Items]
Stock compensation expense					$ 1,056,000	$ 2,128,000
Mr. Charles Myers
Restructuring Cost And Reserve [Line Items]
Unvested options shares		282,994
Number of monthly premiums for disability insurance		12 months
Remaining amount payable					$ 0
Mr. Charles Myers | One Time Benefit
Restructuring Cost And Reserve [Line Items]
Severance amount paid in cash		$ 484,000
Mr. Charles Myers | Other Employment Benefits
Restructuring Cost And Reserve [Line Items]
Severance amount paid in cash		20,000
Mr. Charles Myers | Disability Insurance Plan
Restructuring Cost And Reserve [Line Items]
Severance amount paid in cash		$ 3,200
Mr. Selbo
Restructuring Cost And Reserve [Line Items]
Severance amount paid in cash			$ 150,000
Remaining amount payable	$ 0			$ 0		$ 0
Sales and Marketing Expense
Restructuring Cost And Reserve [Line Items]
Agreement termination costs	$ 1,300,000
General and Administrative Expense | Mr. Charles Myers
Restructuring Cost And Reserve [Line Items]
Stock compensation expense				$ 1,200,000