0001213900-21-027094.txt : 20210517 0001213900-21-027094.hdr.sgml : 20210517 20210517164534 ACCESSION NUMBER: 0001213900-21-027094 CONFORMED SUBMISSION TYPE: 10-Q PUBLIC DOCUMENT COUNT: 51 CONFORMED PERIOD OF REPORT: 20210331 FILED AS OF DATE: 20210517 DATE AS OF CHANGE: 20210517 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Rubicon Technology, Inc. CENTRAL INDEX KEY: 0001410172 STANDARD INDUSTRIAL CLASSIFICATION: SEMICONDUCTORS & RELATED DEVICES [3674] IRS NUMBER: 364419301 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: 10-Q SEC ACT: 1934 Act SEC FILE NUMBER: 001-33834 FILM NUMBER: 21931652 BUSINESS ADDRESS: STREET 1: 900 EAST GREEN STREET CITY: BENSENVILLE STATE: IL ZIP: 60106 BUSINESS PHONE: (847) 295-7000 MAIL ADDRESS: STREET 1: 900 EAST GREEN STREET CITY: BENSENVILLE STATE: IL ZIP: 60106 10-Q 1 f10q0321_rubicontech.htm QUARTERLY REPORT

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 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 March 31, 2021

☐ 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 001-33834

RUBICON TECHNOLOGY, INC.

(Exact Name of Registrant as Specified in Its Charter)

Delaware		36-4419301
State or Other Jurisdiction of Incorporation or Organization		I.R.S. Employer Identification No.

900 East Green Street Bensenville, Illinois		60106
Address of Principal Executive Offices		Zip Code

Registrant’s Telephone Number, Including Area Code: (847) 295-7000

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 Stock, par value $.001 per share	RBCN	The NASDAQ Stock Market
Preferred Shares Purchase Rights

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 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, 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 the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ☐ No ☒

As of April 30, 2021, the Registrant had 2,438,855 shares of common stock, par value $.001 per share, outstanding.

RUBICON TECHNOLOGY, INC.

Quarterly Report on Form 10-Q
For the quarterly period ended March 31, 2021

TABLE OF CONTENTS

			Page
Part I	Financial Information		1
	Item 1.	Financial Statements
		Condensed Consolidated Financial Statements (unaudited)
		Condensed Consolidated Balance Sheets – March 31, 2021 (unaudited) and December 31, 2020	1
		Condensed Consolidated Statements of Operations (unaudited) – Three months ended March 31, 2021 and 2020	2
		Condensed Consolidated Statements of Comprehensive Loss (unaudited) – Three months ended March 31, 2021 and 2020	3
		Condensed Consolidated Statements of Stockholders’ Equity (unaudited) – Three months ended March 31, 2021 and 2020	4
		Condensed Consolidated Statements of Cash Flows (unaudited) – Three months ended March 31, 2021 and 2020	5
		Notes to Condensed Consolidated Financial Statements (unaudited)	6
	Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	14
	Item 3.	Quantitative and Qualitative Disclosures About Market Risk	22
	Item 4.	Controls and Procedures	22

Part II	Other Information		23
	Item 6.	Exhibits	23
Signature			24
Exhibit Index			25

PART I FINANCIAL INFORMATION

Rubicon Technology, Inc.

Condensed Consolidated Balance Sheets

	March 31, 2021			December 31, 2020
	(unaudited)
	(in thousands, other than share and per share data)
Assets
Cash and cash equivalents	$	10,571		$	11,130
Short-term investments		14,749			14,748
Accounts receivable, net		389			386
Inventories		1,046			1,073
Other inventory supplies		138			140
Prepaid expenses and other current assets		253			284
Assets held for sale		529			529
Total current assets		27,675			28,290
Inventories, non-current		468			468
Property and equipment, net		2,441			2,482
Total assets	$	30,584		$	31,240

Liabilities and stockholders’ equity
Accounts payable	$	309		$	497
Accrued payroll		153			211
Accrued and other current liabilities		385			201
Corporate income and franchise taxes		329			307
Accrued real estate taxes		90			71
Advance payments		11			18
Total current liabilities		1,277			1,305
Total liabilities		1,277			1,305

Commitments and contingencies (Note 7)
Stockholders’ equity
Preferred stock, $.001 par value, 1,000,000 undesignated shares authorized, no shares issued or outstanding		-			-
Common stock, $.001 par value, 8,200,000 shares authorized; 2,987,883 and 2,971,283 shares issued; 2,438,855 and 2,422,255 shares outstanding, respectively		29			29
Additional paid-in capital		376,635			376,456
Treasury stock, at cost, 549,028 and 549,028 shares		(15,147	)		(15,147	)
Accumulated other comprehensive income		-			-
Accumulated deficit		(332,210	)		(331,403	)
Total stockholders’ equity		29,307			29,935
Total liabilities and stockholders’ equity	$	30,584		$	31,240

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

Rubicon Technology, Inc.

Condensed Consolidated Statements of Operations

	Three months ended March 31,
	2021			2020
	(unaudited) (in thousands, other than share and per share data)
Revenue	$	729		$	1,160
Cost of goods sold		583			812
Gross profit		146			348
Operating expenses:
General and administrative		875			584
Sales and marketing		79			87
Loss from operations		(808	)		(323	)
Other income:
Interest income		1			74
Realized gain (loss) on investments		-			(1,786	)
Realized gain (loss) on foreign currency translation		-			(14	)
Unrealized gain (loss) on equity investments		-			(156	)
Total other income (loss)		1			(1,882	)
Loss before income taxes		(807	)		(2,205	)
Income tax expense		-			(4	)
Net loss	$	(807	)	$	(2,209	)
Net loss per common share
Basic	$	(0.33	)	$	(0.84	)
Diluted	$	(0.33	)	$	(0.84	)
Weighted average common shares outstanding used in computing net loss per common share
Basic		2,430,555			2,629,467
Diluted		2,430,555			2,629,467

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

Rubicon Technology, Inc.

Condensed Consolidated Statements of Comprehensive Loss

	Three months ended March 31,
	2021			2020
	(unaudited) (in thousands)

Net loss	$	(807	)	$	(2,209	)
Other comprehensive loss:
Unrealized gain on investments, net of taxes		—			11
Other comprehensive gain		—			11
Comprehensive income/(loss)	$	(807	)	$	(2,198	)

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

Rubicon Technology, Inc.

Condensed Consolidated Statements of Stockholders’ Equity

	Common stock				Treasury stock									Stockholders’ equity
	Shares		Amount		Shares			Amount			Additional paid-in capital			Accum other comp loss			Accum deficit			Total stockholders’ equity
	(in thousands other than share data)
Balance at January 1, 2020		2,955,253	$	29		(253,082	)	$	(12,749	)	$	376,306		$	(1	)	$	(330,340	)	$	33,245
Stock-based compensation		—		—		—			—			11			—			—			11
Purchase of treasury stock, at cost		—		—		(146,674	)		(1,205	)		—			—			—			(1,205	)
Unrealized gain on investments, net of tax		—		—		—			—			—			11			—			11
Net loss		—		—		—			—			—			—			(2,209	)		(2,209	)

Balance at March 31, 2020		2,955,253	$	29		(399,756	)	$	(13,954	)	$	376,317			10		$	(332,549	)		29,853

	Common stock				Treasury stock									Stockholders’ equity
	Shares		Amount		Shares			Amount			Additional paid-in capital			Accum other comp loss			Accum deficit			Total stockholders’ equity
	(in thousands other than share data)
Balance at January 1, 2021		2,971,283	$	29		(549,028	)	$	(15,147	)	$	376,456		$	—		$	(331,403	)	$	29,935
Stock-based compensation		—		—		—			—			341			—			—			341
Common stock issued, net of shares withheld for employee taxes		16,600		—		—			—			(162	)		—			—			(162	)
Net loss		—		—		—			—			—			—			(807	)		(807	)

Balance at March 31, 2021		2,987,883	$	29		(549,028	)	$	(15,147	)	$	376,635		$	—		$	(332,210	)	$	29,307

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

Rubicon Technology, Inc.

Condensed Consolidated Statements of Cash Flows

	Three months ended March 31,
	2021			2020
	(unaudited) (in thousands)
Cash flows from operating activities
Net loss	$	(807	)	$	(2,209	)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities
Depreciation and amortization		42			42
Unrealized (gain)/loss on equity investments		-			156
Realized (gain)/loss on equity investments		-			1,786
Stock-based compensation		341			11
Changes in operating assets and liabilities:
Accounts receivable		(4	)		314
Inventories		27			316
Other inventory supplies		1			(1	)
Prepaid expenses and other assets		31			29
Accounts payable		(187	)		(291	)
Accrued payroll		(58	)		28
Accrued real estate taxes		19			19
Corporate income and franchise taxes		22			16
Advanced payments		(8	)		(16	)
Accrued and other current liabilities		184			(62	)
Net cash provided by (cash used) by operating activities		(397	)		138

Cash flows from investing activities
Purchases of investments		(1	)		(1,720	)
Proceeds from sale of investments		1			5,180
Net cash provided by investing activities		-			3,460

Cash flows from financing activities
Taxes paid related to net share settlement of equity awards		(162	)		-
Purchases of treasury stock		-			(1,205	)
Net cash used in financing activities		(162	)		(1,205	)

Net effect of currency translation		-			-
Net increase (decrease) in cash, cash equivalents and restricted cash		(559	)		2,393
Cash, cash equivalents and restricted cash, beginning of period		11,130			8,880
Cash, cash equivalents and restricted cash, end of period	$	10,571		$	11,273

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

Rubicon Technology, Inc.

NOTES TO UNAUDITED CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

March 31, 2021

1. BASIS OF PRESENTATION

Interim financial data

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and notes required by GAAP for complete consolidated financial statements and should be read in conjunction with Rubicon Technology, Inc.’s (the “Company”) annual report filed on Form 10-K for the fiscal year ended December 31, 2020. In the opinion of management, all adjustments (consisting only of adjustments of a normal and recurring nature) considered necessary for a fair presentation of the results of operations have been included. Consolidated operating results for the three-month period ended March 31, 2021, are not necessarily indicative of results that may be expected for the year ending December 31, 2021.

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Principles of consolidation

The consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries, Rubicon Technology Worldwide LLC, Rubicon Technology BP LLC, Rubicon Sapphire Technology (Malaysia) SDN BHD and Rubicon DTP LLC. All intercompany transactions and balances have been eliminated in consolidation.

Investments

The Company invests available cash primarily in U.S. Treasury securities, investment grade commercial paper, FDIC guaranteed certificates of deposit, common stock, preferred stock, equity-related securities and corporate notes. Investments classified as available-for-sale debt securities are carried at fair value with unrealized gains and losses recorded in accumulated other comprehensive income (loss). Investments in common stock, preferred stock and equity-related securities are reported at fair value, with both realized and unrealized gains and losses recorded in other income (expense), in the consolidated statement of operations. Investments in which the Company has the ability and intent, if necessary, to liquidate are classified as short-term.

The Company reviews its available-for-sale debt securities investments at the end of each quarter for other-than-temporary declines in fair value based on the specific identification method. The Company considers various factors in determining whether an impairment is other-than-temporary, including the severity and duration of the impairment, changes in underlying credit ratings, forecasted recovery, its ability and intent to hold the investment for a period of time sufficient to allow for any anticipated recovery in market value and the probability that the scheduled cash payments will continue to be made. When the Company concludes that an other-than-temporary impairment has resulted, the difference between the fair value and carrying value is written off and recorded as a charge on the consolidated statement of operations.

Accounts receivable

The majority of the Company’s accounts receivable is due from defense subcontractors, industrial manufacturers, fabricators and resellers. Credit is extended based on an evaluation of the customer’s financial condition. Accounts receivable are due based on contract terms and at stated amounts due from customers, net of an allowance for doubtful accounts. Losses from credit sales are provided for in the financial statements.

Accounts outstanding longer than the contractual payment terms are considered past due. The Company determines its allowance by considering a number of factors, including length of time customer’s account is past due, customer’s current ability to pay and the condition of the general economy and industry as a whole. The Company writes off accounts receivable when they are deemed uncollectible and such write-offs, net of payments received, are recorded as a reduction to the allowance.

Purchases of Equity Securities by the Issuer and Affiliated Purchasers

In November 2018, the Company’s Board of Directors authorized a program to repurchase up to $3,000,000 of its common stock. In July 2020, the Company used all of the original authorized $3,000,000.

On December 14, 2020, Rubicon’s Board of Directors authorized an additional $3,000,000 for the repurchase of the Company’s common stock. The Company’s share repurchase program does not obligate it to acquire any specific number of shares. The timing, price and volume of repurchases will be based on market conditions, relevant securities laws and other factors. The stock repurchases may be made from time to time, through solicited or unsolicited transactions in the open market, in privately negotiated transactions or pursuant to a Rule 10b5-1 plan. The program may be terminated, suspended or modified at any time. There can be no assurance as to the number of shares of common stock repurchased. The Company records treasury stock purchases under the cost method whereby the entire cost of the acquired stock is recorded as treasury stock.

No shares of the Company’s common stock were repurchased during the three months ended March 31, 2021. The dollar value of shares that may yet to be purchased under the program is $3,000,000.

Inventories

Inventories are valued at the lower of cost or net realizable value. Net realizable value is determined based on an estimated selling price in the ordinary course of business less reasonably predictable costs of completion and disposal. Raw materials cost is determined using the first-in, first-out method, and work-in-process and finished goods costs are determined on a standard cost basis, which includes materials, labor and manufacturing overhead. The Company reduces the carrying value of its inventories for differences between the cost and the estimated net realizable value, taking into account usage, expected demand, technological obsolescence and other information.

The Company establishes inventory reserves when conditions exist that suggest inventory may be in excess of anticipated demand or is obsolete based on customer specifications. The Company evaluates the ability to realize the value of its inventory based on a combination of factors, including forecasted sales, estimated current and future market value and changes in customers’ product specifications. The Company’s method of estimating excess and obsolete inventory has remained consistent for all periods presented.

Inventories consisted of the following:

	March 31, 2021		December 31, 2020
	(in thousands)
Raw materials	$	468	$	468
Work-in-process		452		614
Finished goods		594		459
	$	1,514	$	1,541

As of December 31, 2020 and March 31, 2021, the Company made the determination that raw material inventories were such that the likelihood of significant usage within the current year was doubtful and reclassified such raw material inventories as non-current in the reported financial statements.

Property and equipment

Property and equipment consisted of the following:

	March 31, 2021			December 31, 2020
	(in thousands)
Machinery, equipment and tooling	$	3,343		$	3,343
Buildings		1,711			1,711
Information systems		835			835
Land and land improvements		594			594
Furniture and fixtures		8			8
Total cost		6,491			6,491
Accumulated depreciation and amortization		(4,050	)		(4,009	)
Property and equipment, net	$	2,441		$	2,482

Assets held for sale and long-lived assets

When circumstances, such as adverse market conditions, indicate that the carrying value of a long-lived asset may be impaired, the Company performs an analysis to review the recoverability of the asset’s carrying value. The Company makes estimates of the undiscounted cash flows (excluding interest charges) from the expected future operations of the asset. These estimates consider factors such as expected future operating income, operating trends and prospects, as well as the effects of demand, competition and other factors. If the analysis indicates that the carrying value is not recoverable from future cash flows, an impairment loss is recognized to the extent that the carrying value exceeds the estimated fair value. The estimated fair value of assets is determined using appraisal techniques, which assume the highest and best use of the asset by market participants, considering the use of the asset that is physically possible, legally permissible and financially feasible at the measurement date. Any impairment losses are recorded as operating expenses which reduce net income.

For the year ended December 31, 2020, the Company reviewed the current fair value of its assets and concluded no adjustments were needed. Additionally, no adjustments were recorded for the three months ended March 31, 2021. The Company will continue to assess its long-lived assets to ensure the carrying amount of these assets is still appropriate given any changes in the asset usage, marketplace and other factors used in determining the current fair value.

The Company did not record any sales of its equipment or consumable assets for the three months ended March 31, 2021.

The Company is pursuing the sale of our parcel of land located in Batavia, Illinois. Although the Company cannot assure the timing of this sale, the property was classified as current asset held for sale at March 31, 2021 and December 31, 2020, as it is our intention to complete this sale within the next twelve-month period. We cannot guarantee that we will be able to successfully complete the sale or lease of this asset.

Revenue recognition

The Company recognizes revenue in accordance with ASC Topic 606, Revenue From Contracts with Customers (“Topic 606”), when performance obligations under a purchase order or signed quotation are satisfied. The Company’s business practice commits the Company to manufacture and deliver product upon acceptance of a customer’s purchase order or signed quotation (“agreement”). The agreement with the customer includes specifications of the product to be delivered, price, expected ship date and payment terms. The Company’s agreements generally do not contain variable, financing, rights of return or non-cash components. There are no up-front costs to develop the production process. The performance obligation is satisfied at the point in time (single performance obligation) when the product is manufactured to the customer’s specification, as performance does not create an asset with an alternative use to the Company. Accordingly, the Company recognizes revenue when the product is shipped, and control of the product, title and risk of loss have been transferred to the customer. The Company grants credit terms considering normal collection risk. If there is doubt about collection, full prepayment for the order is required. Any payments received prior to shipment are recorded as deferred revenue and included in Advance Payments in the Consolidated Balance Sheets.

We do not provide maintenance or other services and do not have sales that involve bill & hold arrangements, multiple elements or deliverables. However, we do provide product warranty for up to 90 days, for which we have accrued a warranty reserve of $2,000 and $2,000 at March 31, 2021 and December 31, 2020, respectively.

Net income (loss) per common share

Basic net income (loss) per common share is computed by dividing net income (loss) by the weighted-average number of common shares outstanding during the period. Diluted net income (loss) per common share is computed by dividing net income (loss) by the weighted-average number of diluted common shares outstanding during the period. Diluted shares outstanding are calculated by adding to the weighted-average shares (a) any outstanding stock options based on the treasury stock method and (b) restricted stock units (“RSU”).

Diluted net income per common share was the same as basic net income per common share for the three months ended March 31, 2021 and 2020, because the effects of potentially dilutive securities did not have a material impact on the calculation of diluted net income per share. The Company had outstanding options exercisable into 18,250 and 19,500 shares of the Company’s common stock that would have had an anti-dilutive effect at March 31, 2021 and 2020, respectively.

New accounting pronouncements adopted

The Company has evaluated other recently issued accounting pronouncements and does not believe that any of these pronouncements will have a significant impact the Company’s consolidated financial statements and related disclosures.

3. INVESTMENTS

The Company invests its available cash primarily in U.S. Treasury securities, investment grade commercial paper, FDIC guaranteed certificates of deposit, common stock, preferred stock, equity-related securities and corporate notes. Investments classified as available-for-sale debt securities are carried at fair value with unrealized gains and losses recorded in accumulated other comprehensive income/(loss). Investments in common stock, preferred stock and equity-related securities are reported at fair value, with both realized and unrealized gains and losses recorded in other income (expense), in the consolidated statements of operations.

The following table presents the amortized cost and gross unrealized losses on all securities at March 31, 2021:

	Amortized cost		Gross unrealized gains		Gross unrealized losses		Fair value
	(in thousands)
Short-term investments:
U.S. Treasury securities	$	14,749	$	—	$	—	$	14,749
Marketable securities		—		—		—	$	—
Total short-term investments	$	14,749	$	—	$	—	$	14,749

The following table presents the amortized cost and gross unrealized losses on all securities at December 31, 2020:

	Amortized cost		Gross unrealized gains		Gross unrealized losses		Fair value
	(in thousands)
Short-term investments:
U.S. Treasury securities	$	14,748	$	—	$	—	$	14,748
Marketable securities		—		—		—		—
Total short-term investments	$	14,748	$	—	$	—	$	14,748

The Company values its investments at fair value, defined as the price that would be received to sell an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs. The standard describes a fair value hierarchy based on three levels of inputs, of which the first two are considered observable and the last unobservable, that may be used to measure fair value, which are the following:

	●	Level 1—Quoted prices in active markets for identical assets or liabilities.

	●	Level 2—Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.

●

Level 3—Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.

The Company invests in fixed-income, common stock, preferred stock and equity-related securities. Its fixed-income available-for-sale debt securities consist of U.S. Treasury securities, high-quality investment grade commercial paper, FDIC guaranteed certificates of deposit, and corporate notes. The Company values these securities based on pricing from pricing vendors, who may use quoted prices in active markets for identical assets (Level 1 inputs) or inputs other than quoted prices that are observable either directly or indirectly (Level 2 inputs) in determining fair value. The valuation techniques used to measure the fair value of the Company’s financial instruments having Level 2 inputs were derived from non-binding market consensus prices that are corroborated by observable market data, quoted market prices for similar instruments, or pricing models, such as discounted cash flow techniques.

The following table summarizes the Company’s financial assets measured at fair value on a recurring basis as of March 31, 2021:

	Level 1		Level 2		Level 3		Total
	(in thousands)

Cash equivalents:
Money market funds	$	3,137	$	—	$	—	$	3,137
Investments:
Available-for-sale securities — current:
U.S. Treasury securities		—		14,749		—		14,749
Total	$	3,137	$	14,749	$	—	$	17,886

The following table summarizes the Company’s financial assets measured at fair value on a recurring basis as of December 31, 2020:

	Level 1		Level 2		Level 3		Total
	(in thousands)

Cash equivalents:
Money market funds	$	3,136	$	—	$	—	$	3,136
Investments:
Available-for-sale securities — current:
U.S. Treasury securities		—		14,748		—		14,748
Total	$	3,136	$	14,748	$	—	$	17,884

There are no terms or conditions restricting the Company from redeeming any of its investments.

In addition to the securities noted above, the Company had approximately $7,434,000 and $7,994,000 of time deposits included in cash and cash equivalents as of March 31, 2021 and December 31, 2020, respectively.

4. SIGNIFICANT CUSTOMERS

For the three months ended March 31, 2021, the Company had three customers individually that accounted for approximately 19%, 15%, and 11% of revenue. For the three months ended March 31, 2020, the Company had four customers individually that accounted for approximately 18%, 18%, 16% and 13% of revenue. No other customer accounted for 10% or more of the Company’s revenues during the three months ended March 31, 2021 and 2020.

Customers individually representing more than 10% of trade receivables accounted for approximately 62% and 44% of accounts receivable as of March 31, 2021 and December 31, 2020, respectively.

5. STOCKHOLDERS’ EQUITY

Common shares reserved

As of March 31, 2021, the Company had reserved 65,103 shares of common stock for issuance upon the exercise of outstanding common stock options and vesting of RSUs. Also, 279,505 shares of the Company’s common stock were reserved for future grants of stock options and RSUs (or other similar equity instruments) under the Rubicon Technology, Inc. 2016 Stock Incentive Plan (the “2016 Plan”) as of March 31, 2021.

6. STOCK INCENTIVE PLANS

In August 2007, the Company adopted the Rubicon Technology Inc. 2007 Stock Incentive Plan, which was amended and restated effective in March 2011 (the “2007 Plan”), and which allowed for the grant of incentive stock options, non-statutory stock options, stock appreciation rights, restricted stock, RSUs, performance awards and bonus shares. The maximum number of shares that could be awarded under the 2007 Plan was 440,769 shares. Options granted under the 2007 Plan entitled the holder to purchase shares of the Company’s common stock at the specified option exercise price, which could not be less than the fair value of the common stock on the grant date. On June 24, 2016, the plan terminated with the adoption of the Rubicon Technology, Inc. 2016 Stock Incentive Plan, (the “2016 Plan”). Any existing awards under the 2007 Plan remain outstanding in accordance with their current terms under the 2007 Plan.

In June 2016, the Company’s stockholders approved adoption of the 2016 Plan effective as of March 17, 2016, which allows for the grant of incentive stock options, non-statutory stock options, stock appreciation rights, restricted stock, RSUs, performance awards and bonus shares. The Compensation Committee of the Board administers the 2016 Plan. The committee determines the type of award to be granted, the fair value, the number of shares covered by the award, and the time when the award vests and may be exercised.

Pursuant to the 2016 Plan, as of March 31, 2021 there are 279,505 shares of the Company’s common stock plus any shares subject to outstanding awards under the 2007 Plan that subsequently expire unexercised, are forfeited without the delivery of shares or are settled in cash, will be available for issuance under the 2016 Plan. The 2016 Plan will automatically terminate on March 17, 2026, unless the Company terminates it sooner.

The following table summarizes the activity of the stock incentive and equity plans as of March 31, 2021, and changes during the three months then ended:

	Shares available for grant			Number of options outstanding		Weighted- average option exercise price		Number of restricted stock and board shares issued		Number of RSUs outstanding
At January 1, 2021		296,105			20,100	$	9.71		99,570		45,003
Granted		(31,550	)		—		—		—		—
Exercised/issued		—			—		—		—		—
Cancelled/forfeited		14,950			—		—		—		—
At March 31, 2021		279,505			20,100	$	9.71		99,570		45,003

The Company’s aggregate intrinsic value is calculated as the difference between the exercise price of the underlying stock options and the fair value of the Company’s common stock. Based on the fair value of the common stock at March 31, 2021, there was $74,775 of intrinsic value arising from 18,250 stock options exercisable or outstanding.

The Company uses the Black-Scholes option pricing model to value stock options. The Company uses historical stock price average to determine its volatility assumptions. The assumed risk-free rates were based on U.S. Treasury rates in effect at the time of grant with a term consistent with the expected option lives. The expected term is based upon the vesting term of the Company’s options. The forfeiture rate of 36.13% is based on the history of forfeited options. The expense is allocated using the straight-line method. For the three months ended March 31, 2021 and 2020, the Company recorded $0 and $3,000, respectively, of stock option compensation expense. As of March 31, 2021, there was no unrecognized compensation cost related to non-vested stock option awards granted under the Company’s stock-based plans.

As of December 31, 2020 and March 31, 2021, the Company did not have any non-vested options.

The Company did not record any RSU expense for the three months ended March 31, 2021 and 2020.

A summary of the Company’s RSUs during the three months ended March 31, 2021, is presented below:

	RSUs outstanding		Weighted average price at time of grant		Aggregate intrinsic value
Non-vested RSUs as of January 1, 2021		45,003	$	6.20
Granted		—		—
Vested		—		—
Cancelled		—		—
Non-vested RSUs at March 31, 2021		45,003	$	6.20	$	278,961

Every year at the Company’s annual meeting each member of the Board of Directors is issued an RSU which vests on the day of the following year’s annual meeting. When such RSU vests, they are automatically converted into $10,000 of the Company’s common stock based upon the closing price the day before the following year’s annual meeting.

During the three months ended March 31, 2021, the Company awarded 31,550 shares to an officer of the Company with a fair value of approximately $341,000.

The Company’s board of directors are compensated partially in cash and partially in restricted stock. For the three months ended March 31, 2021 and 2020, no restricted stock shares were issued to our directors. As of March 31, 2021 and December 31, 2020, there were no outstanding non-vested restricted stock shares.

7. COMMITMENTS AND CONTINGENCIES

Litigation

From time to time, the Company experiences routine litigation in the normal course of its business. The management of the Company does not believe any pending litigation, will have a material adverse effect on the financial condition, results of operations or cash flows of the Company.

COVID-19 Pandemic

In March 2020, the World Health Organization declared the outbreak of a novel coronavirus (COVID-19) as a pandemic. The full impact of the COVID-19 outbreak is unknown and cannot be reasonably estimated. The magnitude and duration of the COVID-19 outbreak, as well as other factors, could result in a material impact to the Company’s financial statements in future reporting periods.

8. INCOME TAXES

In 2017, the U.S. enacted the Tax Cuts and Jobs Act (the “Act”) which, among other provisions, reduced the U.S. corporate tax rate from 35% to 21% effective January 1, 2018. The SEC issued guidance, Staff Accounting Bulletin 118, on accounting for the tax effects of the Act. The guidance allows the Company to record provisional amounts for those impacts, with the requirement that the accounting be completed in a period not to exceed one year from the date of enactment. The Company has completed its accounting for the tax effects of enactment of the Act. The deemed inclusion from the repatriation tax increased from $3,900,000 at the time of provision to $5,000,000 at the time the calculation was finalized for the tax return. The increase of the inclusion related primarily to the refinement of Malaysia earnings and profits. As the Company is in a full valuation allowance position, an equal benefit adjustment was recorded for the impact of the increase of the deemed repatriation tax.

The Company is subject to taxation in the U.S. and in a U.S. state jurisdiction. On a quarterly basis, the Company assesses the recoverability of deferred tax assets and the need for a valuation allowance. Such evaluations involve the application of significant judgment, and multiple factors, both positive and negative, are considered. For the period ended March 31, 2021, a valuation allowance has been included in the 2021 forecasted effective tax rate. The Company is in a cumulative loss position for the past three years, which is considered significant negative evidence that is difficult to overcome on a “more likely than not” standard through objectively verifiable data. Under the accounting standards, objective verifiable evidence is given greater weight than subjective evidence such as the Company’s projections for future growth. Based on an evaluation in accordance with the accounting standards, as of December 31, 2015, a valuation allowance has been recorded against the net U.S. deferred tax assets in order to measure only the portion of the deferred tax assets that are more likely than not to be realized based on the weight of all available evidence. At March 31, 2021, the Company continues to be in a three-year cumulative loss position, therefore, until an appropriate level of profitability is attained, the Company expects to maintain a full valuation allowance on its U.S. net deferred tax assets. Any U.S. tax benefits or tax expense recorded on the Company’s consolidated statement of operations will be offset with a corresponding adjustment from the use of the net operating loss (“NOL”) carryforward asset which currently has a full valuation allowance. In the event that the Company changes its determination as to the amount of deferred tax assets that can be realized, the Company will adjust its valuation allowance with a corresponding impact to the provision for income taxes in the period in which such determination is made.

9. SEGMENT INFORMATION

The Company has determined that it operates in two segments, the sapphire and pharmacy business.

Revenue is attributed by geographic region based on ship-to location of the Company’s customers. The following table summarizes revenue by geographic region:

	Three months ended March 31,
	2021		2020
	(in thousands)

North America	$	588	$	1,040
Asia		139		113
Other		2		7
Total revenue	$	729	$	1,160

The following table summarizes sales by product type:

	Three months ended March 31,
	2021		2020
	(in thousands)

Optical	$	495	$	1,027
Rubicon DTP		234		133
Total revenue	$	729	$	1,160

As of March 31, 2021 and December 31, 2020, the Company held all of its assets in the United States.

Direct Dose Rx accounted for a loss of approximately $95,000 and $119,000 for the three months ended March 31, 2021 and 2020, respectively.

Direct Dose Rx assets are currently not material to the consolidated financial information of the Company and therefore there is limited disclosure relating specifically to them.

10. SUBSEQUENT EVENTS

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

Forward Looking Statements

All statements, other than statements of historical facts, included in this Quarterly Report on Form 10-Q, including statements regarding our estimates, expectations, beliefs, intentions, projections or strategies for the future, results of operations, financial position, net sales, projected costs, prospects and plans and objectives of management for future operations may be “forward-looking statements” within the meaning of the safe harbor provisions of the U.S. Private Securities Litigation Reform Act of 1995. We have based these forward-looking statements on our current expectations and projections about future events and financial trends that we believe may affect our financial condition, results of operations, business strategy, short-term and long-term business operations and objectives and financial needs. These forward looking statements can be identified by the use of terms and phrases such as “believe,” “plan,” “intend,” “anticipate,” “target,” “estimate,” “expect,” “forecast,” “prospects,” “goals,” “potential,” “likely,” and the like, and/or future-tense or conditional constructions such as “will,” “may,” “could,” “should,” etc. (or the negative thereof). Items contemplating or making assumptions about actual or potential future sales, market size and trends or operating results also constitute forward-looking statements.

Moreover, we operate in a very competitive and rapidly changing environment. New risks emerge from time to time. It is not possible for our management to predict all risks, nor can we assess the impact of all factors on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements we may make. Before investing in our common stock, investors should be aware that the occurrence of the risks, uncertainties and events described in the section entitled “Risk Factors” in our Annual Report on Form 10-K, for the year ended December 31, 2020, and elsewhere in this Quarterly Report could have a material adverse effect on our business, results of operations and financial condition.

Although we believe that the expectations reflected in the forward-looking statements are reasonable, forward-looking statements are inherently subject to known and unknown business, economic and other risks and uncertainties that may cause actual results to be materially different from those discussed in these forward-looking statements. Readers are urged not to place undue reliance on these forward-looking statements, which speak only as of the date of this Quarterly Report. We assume no obligation to update any forward-looking statements in order to reflect any event or circumstance that may arise after the date of this Quarterly Report, other than as may be required by applicable law or regulation. If one or more of these risks or uncertainties materialize, or if the underlying assumptions prove incorrect, our actual results may vary materially from those expected or projected.

You should read this Quarterly Report, the documents that we reference in this Quarterly Report and have filed with the SEC as exhibits, and our Annual Report on Form 10-K for the year ended December 31, 2020, with the understanding that our actual future results, levels of activity, performance and events and circumstances may be materially different from what we expect.

Unless otherwise indicated, the terms “Rubicon,” the “Company,” “we,” “us,” and “our” refer to Rubicon Technology, Inc. and our consolidated subsidiaries.

OVERVIEW

The Company consists of two primary operating subsidiaries, Rubicon Technology Worldwide LLC (“RTW”) and Rubicon DTP LLC dba Direct Dose Rx. We manage RTW's direct sales, growth, fabrication and ship from our facility located in Bensenville, Illinois. We manage Direct Dose’s operations from our leased facility in Indianapolis, Indiana.

Rubicon Technology Worldwide is a vertically integrated, advanced materials provider specializing in monocrystalline sapphire for applications in optical and industrial systems. We use our proprietary crystal growth technology to produce high-quality sapphire products to meet our customers exacting specifications. We believe that we continue to have a reputation as one of the highest quality sapphire producers in the market. We provide optical and industrial sapphire products in various shapes and sizes, including round and rectangular windows and blanks, domes, tubes and rods.

Historically, we have also provided sapphire products to the LED and mobile device markets, which are the largest markets for sapphire. However, given competitive pressures in those markets, in the fourth quarter of 2016 we announced our decision to limit our focus to the optical and industrial sapphire markets and exit the LED market. We operate in a very competitive market. Our ability to expand our optical and industrial business and acceptance of new product offerings are difficult to predict.

Direct Dose Rx is a specialized pharmacy that provides prescription medications, over-the-counter drugs and vitamins to patients being discharged from skilled nursing facilities and hospitals and directly to retail customers who want such medications delivered to their home. The delivered products are sorted by the dose, date and time to be taken and come in easy to use perforated strip-packaging as opposed to separate pill bottles. Direct Dose Rx is currently licensed to operate in 7 states. The services offered by Direct Dose Rx benefits patients, skilled nursing facilities and hospitals by reducing the risk of hospital readmissions.

In addition to our current sapphire and our mail order pharmacy businesses, we are actively evaluating making investments, effecting a merger, consolidation or other business combination, partnering or other collaboration agreements, or potential acquisitions or recapitalizations, in one or more transactions outside of these markets to utilize our substantial NOL carry forwards.

Historically, a significant portion of the Company’s revenue has been derived from sales to relatively few customers. For the three months ended March 31, 2021, the Company had three customers individually that accounted for approximately 19%, 15%, and 11% of revenue. For the three months ended March 31, 2020, the Company had four customers individually that accounted for approximately 18%, 18%, 16% and 13% of revenue. No other customer accounted for 10% or more of the Company’s revenues during the three months ended March 31, 2021 and 2020. Our principal customers have been defense subcontractors, industrial manufacturers, fabricators, resellers and pharmacy benefit managers. We expect our sales to continue to be concentrated among a small number of customers. However, we also expect that our significant customers may change from time to time.

Customers individually representing more than 10% of trade receivables accounted for approximately 62% and 44% of accounts receivable as of March 31, 2021 and December 31, 2020, respectively.

Revenue. We recognize revenue based upon the shipping terms with our customers. Delays in product orders or changes to the timing of shipments could cause our quarterly revenue to vary significantly. We sell our products on a global basis, and historically derived a significant portion of our revenue from customers outside of the U.S., with the majority of our sales to the Asian and European markets. Following the decision to limit our focus to the optical and industrial sapphire markets, a major source of our revenue is derived from the North American market. All of our revenue and corresponding accounts receivable are denominated in U.S. dollars. Substantially all of our revenue is generated by our direct sales force and we expect this to continue in the future.

Cost of goods sold. Our cost of goods sold consists primarily of manufacturing materials, labor, manufacturing related overhead, such as utilities, depreciation, provisions for excess and obsolete inventory reserves, idle plant charges, outsourcing costs, freight, warranties and pharmaceutical products. We purchase materials and supplies to support current and future demand for our products. We are subject to variations in the cost of consumable assets from period to period because we do not have long-term fixed-price agreements with our suppliers. We currently outsource some of our production processes and needs.

Sales, General and administrative expenses. Our operating expenses are comprised of sales and marketing, and general and administrative (“G&A”) expenses. G&A expenses consist primarily of compensation and associated costs for finance, human resources, information technology and administrative activities, including charges for accounting, legal services and insurance. Additionally, the majority of our stock-based compensation relates to administrative personnel and is accounted for as a G&A expense.

Other income. Other income consists of interest income, unrealized gain (loss) on investments, realized gain (loss) on investments and realized gains (loss) on currency translation.

We account for income taxes under the asset and liability method, whereby the expected future tax consequences of temporary differences between the book value and the tax basis of assets and liabilities are recognized as deferred tax assets and liabilities, using enacted tax rates in effect for the year in which the differences are expected to be recognized. Our analysis of ownership changes that limit the utilization of our NOL carryforwards as of December 31, 2020, shows no impact on such utilization. In order to protect our NOL carryforwards, in December 2020, we amended our stockholders’ rights plan to extend it to December 2023. We are in a cumulative loss position for the past three years. Based on an evaluation in accordance with the accounting standards, a valuation allowance has been recorded against the net U.S. deferred tax assets in order to measure only the portion of the deferred tax assets that are more likely than not to be realized based on the weight of all available evidence. Until an appropriate level of profitability is attained, we expect to maintain a full valuation allowance on our U.S. net deferred tax assets.

We continue to review a variety of strategic alternatives with a goal of providing greater value to our stockholders. These alternatives could result in, among other things, further modifying or eliminating certain of our operations, selling material assets, seeking additional financing, selling the business, making investments, effecting a merger, consolidation or other business combination, partnering or other collaboration agreements, or potential acquisitions or recapitalizations, or we may continue to operate with our current business plan and strategy. We cannot provide assurance that this process will result in the consummation of any transaction, or that the consummation of any transaction will provide greater value to our stockholders.

Direct Dose Rx revenue and expenses are currently not material to the consolidated financial information of the Company and therefore there is limited disclosure relating specifically to it.

RESULTS OF CONSOLIDATED OPERATIONS THREE MONTHS ENDED MARCH 31, 2021 AND 2020

The following table sets forth our consolidated statements of operations for the periods indicated:

	Three months ended March 31,
	2021			2020
	(in thousands)
Revenue	$	729		$	1,160
Cost of goods sold		583			812
Gross profit		146			348
Operating expenses:
General and administrative		875			584
Sales and marketing		79			87
Total operating expenses		954			671
Loss from operations		(808	)		(323	)
Other income/(loss)		1			(1,882	)
Income (loss) before income taxes		(807	)		(2,205	)
Income tax expense		—			(4	)
Net income (loss)	$	(807	)	$	(2,209	)

The following table sets forth our consolidated statements of operations as a percentage of revenue for the periods indicated:

	Three months ended March 31,
	2021			2020
	(percentage of total)
Revenue		100	%		100	%
Cost of goods sold		80			70
Gross profit		20			30
Operating expenses:
General and administrative		120			50
Sales and marketing		11			8
Total operating expenses		131			58
Loss from operations		(111	)		(28	)
Other income/(loss)		—			(163	)
Income (loss) before income taxes		(111	)		(191	)
Income tax expense		—			—
Net income (loss)		(111	)%		(191	)%

Revenue. Revenue was $729,000 and $1,160,000 for the three months ended March 31, 2021 and 2020, respectively, a decrease of $431,000. This decrease in revenue was due to a decline in revenue by RTW of $532,000, caused by the timing and fluctuations of shipments, and was offset by an increase of $101,000 in revenue by Direct Dose due to an increase in the number of its customers.

Gross profit. Gross profit was $146,000 and $348,000 for the three months ended March 31, 2021 and 2020, respectively, a decrease of $202,000. This decrease was primarily attributable to decreases in sales at RTW and slightly offset by an $8,000 increase in gross profit at Direct Dose due to its increased revenue.

General and administrative expenses. General and administrative expenses were $875,000 and $584,000 for the three months ended March 31, 2021 and 2020, respectively, an increase of $291,000. The increase was primarily attributable to the accrual of an executive bonus in the amount of $221,000 and an increase in consulting fees of $60,000 in 2021.

Sales and marketing expenses. Sales and marketing expenses were $79,000 and $87,000 for the three months ended March 31, 2021 and 2020, respectively, a decrease of $8,000. The decrease in sales and marketing expenses was primarily attributable to a decrease in travel costs.

Other income. Other income was $1,000 for the three months ended March 31, 2021 as compared to a loss of ($1,882,000) for the three months ended March 31, 2020, an increase of $1,883,000. The increase in other income was due to a realized loss of ($1,846,000) and an unrealized loss of ($156,000) on equity securities in the period ending March 31, 2020. These losses were partially offset by interest income of $74,000 and a payment of $60,000 from a potential buyer of the Company’s parcel of land located in Batavia, IL due to the failure by the buyer to consummate the purchase.

Income tax (benefit) expense. In accordance with ASC740 “Accounting for Income Taxes” (“ASC740”), we evaluate our deferred income tax assets quarterly to determine if valuation allowances are required or should be adjusted. At March 31, 2021, we continue to be in a three-year cumulative loss position; therefore, until an appropriate level of profitability is attained, we expect to maintain a valuation allowance on net deferred tax assets related to future U.S. tax benefits and will no longer accrue tax benefits or tax expense on our consolidated statement of operations. The tax provision for the three months ended March 31, 2021, is based on an estimated combined statutory effective tax rate.

LIQUIDITY AND CAPITAL RESOURCES

We have historically funded our operations using a combination of issuances of common stock and cash generated from our operations.

As of March 31, 2021, we had cash, cash equivalents and short-term investments totaling $25,320,000, including cash of $7,434,000 held in deposits at major banks, $3,137,000 invested in money market funds and $14,749,000 of short-term investments consisting of U.S. Treasury securities.

Cash flows from operating activities

Cash used in operating activities was $397,000 for the three months ended March 31, 2021. During the period, we generated a net loss of $807,000, including non-cash items of $383,000, and an increase in cash from net working capital of $27,000. The net working capital cash increase was primarily driven by a decrease in accrued payroll of $58,000, an increase of $226,000 consisting of corporate franchise taxes owed, accrued real estate taxes owed and other accrued and other current liabilities, and a decrease of $27,000 in inventories and $31,000 in prepaid expenses and other current assets. This was partially offset by a decrease in accounts payable of $187,000.

Cash provided by operating activities was $138,000 for the three months ended March 31, 2020. During the period, we generated a net loss of $2,209,000, including adjusting items of $1,995,000, and an increase in cash from net working capital of $352,000. The net working capital cash increase was primarily driven by a decrease in accounts receivable of $314,000 and a decrease of $316,000 in inventories. This was partially offset by a decrease in accounts payable of $291,000 and a decrease in accruals and other liabilities of $15,000.

Cash flows from investing activities

Net cash used in investing activities was $0 for the three months ended March 31, 2021, primarily due to the purchases of, and sales of investments in U.S. Treasury securities were approximately $1,000 each.

Net cash provided by investing activities was $3,460,000 for the three months ended March 31, 2020, primarily due to the proceeds from sales of investments in U.S. Treasury securities and equity related securities of $5,180,000. This was partially offset by the purchases of investments of $1,720,000.

We anticipate our capital expenditures for 2021 will be minimal.

Cash flows from financing activities

Net cash used in financing activities was $162,000 for the three months ended March 31, 2021, due entirely to cash used to settle equity awards. Net cash used in financing activities was $1,205,000 for the three months ended March 31, 2020, due entirely to purchases of our treasury stock.

Future liquidity requirements

We believe that our existing cash, cash equivalents, anticipated cash flows from operating activities and proceeds from sales or leases of fixed assets will be sufficient to meet our anticipated cash needs for at least the next twelve months. However, if our ability to generate sufficient operating cash flow or our use of cash in the next twelve months were to significantly adversely change, we may not have enough funds available to continue operating at our current level in future periods. Our cash needs include cash required to fund our operations. If the assumptions underlying our business plan regarding future revenues and expenses change, or if unexpected opportunities or needs arise, we may seek to raise additional cash by selling equity or convertible debt securities. If we raise additional funds through the issuance of equity or convertible debt securities, the percentage ownership of our stockholders could be significantly diluted, and these newly issued securities may have rights, preferences or privileges senior to those of existing stockholders.

CRITICAL ACCOUNTING POLICIES AND ESTIMATES

We consider to be critical those accounting policies that require our most subjective or complex judgments, which often result from a need to make estimates about the effect of matters that are inherently uncertain, and that are among the most important of our accounting policies in the portrayal of our financial condition and results of operations. We believe the following to be our critical accounting policies, including the more significant estimates and assumptions used in preparation of our financial statements.

Revenue recognition

We recognize revenue in accordance with ASC Topic 606, Revenue From Contracts with Customers (“Topic 606”), when performance obligations under a purchase order or signed quotation are satisfied. Our business practice commits us to manufacture and deliver product upon acceptance of a customer’s purchase order or signed quotation (“agreement”). The agreement with the customer includes specifications of the product to be delivered, price, expected ship date and payment terms. Our agreements generally do not contain variable, financing, rights of return or non-cash components. There are no up-front costs to develop the production process. The performance obligation is satisfied at the point in time (single performance obligation) when the product is manufactured to the customer’s specification as performance does not create an asset with an alternative use to us. Accordingly, we recognize revenue when the product is shipped, and control of the product, title and risk of loss have been transferred to the customer. We grant credit terms considering normal collection risk. If there is doubt about collection, full prepayment for the order is required. Any payments received prior to shipment are recorded as deferred revenue and included in Advance Payments in the Consolidated Balance Sheets.

Assets held for sale and long-lived assets

When circumstances, such as adverse market conditions, indicate that the carrying value of a long-lived asset may be impaired, we perform an analysis to review the recoverability of the asset’s carrying value. We make estimates of the undiscounted cash flows (excluding interest charges) from the expected future operations of the asset. These estimates consider factors such as expected future operating income, operating trends and prospects, as well as the effects of demand, competition and other factors. If the analysis indicates that the carrying value is not recoverable from future cash flows, an impairment loss is recognized to the extent that the carrying value exceeds the estimated fair value. The estimated fair value of assets is determined using appraisal techniques which assume the highest and best use of the asset by market participants, considering the use of the asset that is physically possible, legally permissible and financially feasible at the measurement date. Any impairment losses are recorded as operating expenses which reduce net income.

For the year ended December 31, 2020, we reviewed the current fair value of our assets and concluded no adjustments were needed. Additionally, no adjustments were recorded for the three months ended March 31, 2021. We will continue to assess our long-lived assets to ensure the carrying amount of these assets is still appropriate given any changes in the asset usage, marketplace and other factors used in determining the current fair value.

Inventory valuation

We value our inventory at the lower of cost or net realizable value. Net realizable value is determined based on an estimated selling price in the ordinary course of business less reasonably predictable costs of completion and disposal. Raw materials cost is determined using the first-in, first-out method, and work-in-process and finished goods costs are determined on a standard cost basis which includes materials, labor and manufacturing overhead. We establish inventory reserves when conditions exist that suggest inventory may be in excess of anticipated demand or is obsolete based on customer required specifications. We evaluate the ability to realize the value of our inventory based on a combination of factors, including forecasted sales, estimated current and future market value and changes in customers’ product specifications.

Our method of estimating excess and obsolete inventory has remained consistent for all periods presented. However, if our recognition of excess or obsolete inventory is, or if our estimates of our inventory’s potential utility become, less favorable than currently expected, additional inventory reserves may be required.

We determine our normal operating capacity and record as an expense costs attributable to lower utilization of equipment and staff. For the three months ended March 31, 2021and 2020, we determined that we were not operating at capacity and recorded costs associated with lower utilization of equipment and staff of $26,000 and $39,000, respectively. It is likely we will incur additional adjustments for lower utilization of our equipment and staff in 2021.

Investments

We invest our available cash primarily in U.S. Treasury securities, investment grade commercial paper, FDIC guaranteed certificates of deposit, common stock, preferred stock, equity-related securities and corporate notes. Investments classified as available-for-sale debt securities are carried at fair value with unrealized gains and losses recorded in accumulated other comprehensive income (loss). Investments in common stock, preferred stock and equity-related securities are reported at fair value, with both realized and unrealized gains and losses recorded in other income in the consolidated statements of operations. Investments in which we have the ability and intent, if necessary, to liquidate are classified as short-term.

We review our available-for-sale debt securities investments at the end of each quarter for other-than-temporary declines in fair value based on the specific identification method. We consider various factors in determining whether an impairment is other-than-temporary, including the severity and duration of the impairment, changes in underlying credit ratings, forecasted recovery, our ability and intent to hold the investment for a period of time sufficient to allow for any anticipated recovery in market value and the probability that the scheduled cash payments will continue to be made. When we conclude that an other-than-temporary impairment has resulted, the difference between the fair value and carrying value is written off and recorded as a charge on the consolidated statement of operations. As of March 31, 2021 and 2020, no impairment was recorded.

Stock-based compensation

We grant stock-based compensation in the form of stock options, RSUs and restricted stock. We expense stock-based compensation based upon the fair value on the date of grant. We use the Black-Scholes option pricing model to determine the fair value of stock options. The determination of the fair value of stock-based payment awards on the date of grant using an option-pricing model is affected by assumptions regarding a number of complex and subjective variables. These variables include our expected stock volatility over the term of the awards, actual and projected employee stock option exercise behaviors, risk-free interest rates, forfeitures and expected dividends.

The expected term represents the weighted-average period that our stock options are expected to be outstanding and is based upon the historical data. We estimate the volatility of our common stock based on a historical range of stock price fluctuations. We base the risk-free interest rate that we use in the option pricing model on U.S. Treasury zero-coupon issues with remaining terms similar to the expected terms on the options. We do not anticipate paying any cash dividends in the foreseeable future and, therefore, use an expected dividend yield of zero in the option pricing model. We are required to estimate forfeitures at the time of grant and revise those estimates in subsequent periods if actual forfeitures differ from those estimates. The current forfeiture rate of 36.13% was based on our past history of forfeitures.

All option grants are granted at an exercise price per share equal to the closing market price of our common stock on the day before the date of grant. Therefore, there is no intrinsic value on the date of grant because the exercise price per share of each option was equal to the fair value of the common stock on the date of grant.

Based on the fair value of the common stock at March 31, 2021, there was $74,775 of intrinsic value arising from 18,250 stock options exercisable and outstanding.

We allocate stock-based compensation costs using a straight-line method, which amortizes the fair value of each award on a straight-line basis over the service period.

Income tax valuation allowance

In accordance with ASC 740 “Accounting for Income Taxes” (“ASC 740”), we evaluate our deferred income tax assets quarterly to determine if valuation allowances are required or should be adjusted. Evaluating the need for and amount of a valuation allowance for deferred tax assets often requires significant judgment and extensive analysis of all positive and negative evidence available to determine whether all or some portion of the deferred tax assets will not be realized. A valuation allowance must be established for deferred tax assets when it is more likely than not (a probability level of more than 50%) that they will not be realized. In general, “realization” refers to the incremental benefit achieved through the reduction in future taxes payable or an increase in future taxes refundable from the deferred tax assets, assuming that the underlying deductible differences and carryforwards are the last items to enter into the determination of future taxable income. In determining our valuation allowance, we consider the source of taxable income including taxable income in prior carryback years, future reversals of existing temporary differences, the required use of tax planning strategies, and future taxable income exclusive of reversing temporary differences and carryforwards. We are in a cumulative loss position for the past three years, which is considered significant negative evidence by the accounting standards that is difficult to overcome on a “more likely than not” standard through objectively verifiable data. The accounting standards attribute greater weight to objective verifiable evidence than to subjective positive evidence, such as our projections for future growth. Based on an evaluation in accordance with the accounting standards, as of March 31, 2021, a valuation allowance has been recorded against the net U.S. deferred tax assets in order to measure only the portion of the deferred tax assets that are more likely than not to be realized based on the weight of all available evidence. Any U.S. tax benefits or tax expense recorded on the consolidated statement of operations will be offset with a corresponding adjustment from the use of the NOL carryforward asset which currently has a full valuation allowance. In the event that we change our determination as to the amount of deferred tax assets that can be realized, we will adjust our valuation allowance with a corresponding impact to the provision for income taxes in the period in which such determination is made.

RECENT ACCOUNTING PRONOUNCEMENTS

See Note 2 to the Condensed Consolidated Financial Statements for a discussion of new accounting standards.

OFF-BALANCE SHEET ARRANGEMENTS

We do not have any off-balance sheet arrangements.

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURE ABOUT MARKET RISK

For the three months ended March 31, 2021, there were no material changes in the information regarding market risk contained in our Annual Report on Form 10-K for the fiscal year ended December 31, 2020.

ITEM 4. CONTROLS AND PROCEDURES

Management’s evaluation of disclosure controls and procedures

Based on evaluations at March 31, 2021, our chief executive officer and acting chief financial officer (the “certifying officer”), with the participation of the management team, has concluded that 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 (the “Exchange Act”)) are effective to ensure that information required to be disclosed by us in reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified in the rules and forms of the SEC, and that material information relating to the Company is accumulated and communicated to management, including our certifying officer, as appropriate to allow timely decisions regarding required disclosures.

Changes in internal control over financial reporting

The certifying officer has concluded that there were no changes in our internal control over financial reporting (as defined in Rule 13a-15(f) under the Exchange Act) during the three months ended March 31, 2021, that materially affected, or are reasonably likely to materially affect, our internal control over financial reporting.

PART II

ITEM 6. EXHIBITS

The exhibits filed or incorporated by reference as a part of this report are listed in the Exhibit Index which appears following the signature page to this Quarterly Report on Form 10-Q and is incorporated by reference.

SIGNATURE

Pursuant to the requirements of Section 13 or 15(d) of the Securities Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	Rubicon Technology, Inc.

Date: May 17, 2020	By:	/s/ Timothy E. Brog
		Timothy E. Brog
		President, Chief Executive Officer and Acting Chief Financial Officer

EXHIBIT INDEX

The Exhibits listed below are filed or incorporated by reference as part of this Quarterly Report on Form 10-Q.

Exhibit No.	Description	Incorporation by Reference

3.1	Eighth Amended and Restated Certificate of Incorporation of Rubicon Technology, Inc.	Filed as Exhibit 3.1 to the registrant’s Registration Statement on Form S-1/A, filed on November 1, 2007 (File No. 333-145880)

3.2	Amendment No. 1 to Eighth Amended and Restated Certificate of Incorporation of Rubicon Technology, Inc.	Filed as Appendix A to the registrant’s Definitive Proxy Statement on Schedule 14A, filed on April 29, 2011 (File No. 1-33834)

3.3	Amendment No. 2 to Eighth Amended and Restated Certificate of Incorporation of Rubicon Technology, Inc.	Filed as Exhibit 3.1 to the registrant’s Current Report on Form 8-K, filed on May 4, 2017 (File No. 1-33834)

3.4	Second Amended and Restated Bylaws of Rubicon Technology, Inc.	Filed as Exhibit 3.3 to the registrant’s Quarterly Report on Form 10-Q, filed on May 10, 2016 (File No. 1-33834)

3.5	Certificate of Designations of Series A Junior Participating Preferred Stock of Rubicon Technology, Inc. filed with the Secretary of State of Delaware on December 18, 2017.	Filed as Exhibit 3.1 to the registrant’s Current Report on Form 8-K, filed on December 18, 2017 (File No. 1-33834)

3.6	Amendment No. 3 to Eighth Amended and Restated Certificate of Incorporation of Rubicon Technology, Inc.	Filed as Exhibit 3.1 to the registrant’s Current Report on Form 8-K, filed on May 15, 2018 (File No. 1-33834)

31.1*	Certification of Chief Executive Officer and Acting Financial Officer pursuant to Exchange Act Rules 13a-14(a) and 15d-14(a), as adopted pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

32.1*	Certification of Chief Executive Officer and Acting Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002

101.INS*	XBRL Instance Document

101.SCH*	XBRL Taxonomy Extension Schema Document

101.CAL*	XBRL Taxonomy Extension Calculation Linkbase Document

101.LAB*	XBRL Taxonomy Extension Label Linkbase Document

101.PRE*	XBRL Taxonomy Extension Presentation Document

101.DEF*	XBRL Taxonomy Extension Definition Linkbase Document


*	Filed electronically with this Quarterly Report on Form 10-Q

EX-31.1 2 f10q0321ex31-1_rubicontech.htm CERTIFICATION

Exhibit 31.1

Certifications

Certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002

I, Timothy E. Brog, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of Rubicon Technology, Inc. (the “registrant”);

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. I am 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:

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;

designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under my 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 my conclusion 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

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. 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: May 17, 2021	By:	/s/ Timothy E. Brog
		Timothy E. Brog
		President, Chief Executive Officer and Acting Chief Financial Officer

EX-32.1 3 f10q0321ex32-1_rubicontech.htm CERTIFICATION

Exhibit 32.1

Certification Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002,

18 U.S.C. Section 1350

In connection with the Quarterly Report of Rubicon Technology, Inc. (the “Company”) on Form 10-Q for the quarter ended March 31, 2021, as filed with the Securities and Exchange Commission on the date hereof (the “Report”), the undersigned 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 his knowledge:

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

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

Date: May 17, 2021	By:	/s/ Timothy E. Brog
		Timothy E. Brog
		President, Chief Executive Officer and Acting Chief Financial Officer

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1. BASIS OF PRESENTATION Interim financial data The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and notes required by GAAP for complete consolidated financial statements and should be read in conjunction with Rubicon Technology, Inc.’s (the “Company”) annual report filed on Form 10-K for the fiscal year ended December 31, 2020. In the opinion of management, all adjustments (consisting only of adjustments of a normal and recurring nature) considered necessary for a fair presentation of the results of operations have been included. Consolidated operating results for the three-month period ended March 31, 2021, are not necessarily indicative of results that may be expected for the year ending December 31, 2021.

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Principles of consolidation The consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries, Rubicon Technology Worldwide LLC, Rubicon Technology BP LLC, Rubicon Sapphire Technology (Malaysia) SDN BHD and Rubicon DTP LLC. All intercompany transactions and balances have been eliminated in consolidation. Investments The Company invests available cash primarily in U.S. Treasury securities, investment grade commercial paper, FDIC guaranteed certificates of deposit, common stock, preferred stock, equity-related securities and corporate notes. Investments classified as available-for-sale debt securities are carried at fair value with unrealized gains and losses recorded in accumulated other comprehensive income (loss). Investments in common stock, preferred stock and equity-related securities are reported at fair value, with both realized and unrealized gains and losses recorded in other income (expense), in the consolidated statement of operations. Investments in which the Company has the ability and intent, if necessary, to liquidate are classified as short-term. The Company reviews its available-for-sale debt securities investments at the end of each quarter for other-than-temporary declines in fair value based on the specific identification method. The Company considers various factors in determining whether an impairment is other-than-temporary, including the severity and duration of the impairment, changes in underlying credit ratings, forecasted recovery, its ability and intent to hold the investment for a period of time sufficient to allow for any anticipated recovery in market value and the probability that the scheduled cash payments will continue to be made. When the Company concludes that an other-than-temporary impairment has resulted, the difference between the fair value and carrying value is written off and recorded as a charge on the consolidated statement of operations.  Accounts receivable The majority of the Company’s accounts receivable is due from defense subcontractors, industrial manufacturers, fabricators and resellers. Credit is extended based on an evaluation of the customer’s financial condition. Accounts receivable are due based on contract terms and at stated amounts due from customers, net of an allowance for doubtful accounts. Losses from credit sales are provided for in the financial statements. Accounts outstanding longer than the contractual payment terms are considered past due. The Company determines its allowance by considering a number of factors, including length of time customer’s account is past due, customer’s current ability to pay and the condition of the general economy and industry as a whole. The Company writes off accounts receivable when they are deemed uncollectible and such write-offs, net of payments received, are recorded as a reduction to the allowance. Purchases of Equity Securities by the Issuer and Affiliated Purchasers In November 2018, the Company’s Board of Directors authorized a program to repurchase up to $3,000,000 of its common stock. In July 2020, the Company used all of the original authorized $3,000,000. On December 14, 2020, Rubicon’s Board of Directors authorized an additional $3,000,000 for the repurchase of the Company’s common stock. The Company’s share repurchase program does not obligate it to acquire any specific number of shares. The timing, price and volume of repurchases will be based on market conditions, relevant securities laws and other factors. The stock repurchases may be made from time to time, through solicited or unsolicited transactions in the open market, in privately negotiated transactions or pursuant to a Rule 10b5-1 plan. The program may be terminated, suspended or modified at any time. There can be no assurance as to the number of shares of common stock repurchased. The Company records treasury stock purchases under the cost method whereby the entire cost of the acquired stock is recorded as treasury stock. No shares of the Company’s common stock were repurchased during the three months ended March 31, 2021. The dollar value of shares that may yet to be purchased under the program is $3,000,000. Inventories Inventories are valued at the lower of cost or net realizable value. Net realizable value is determined based on an estimated selling price in the ordinary course of business less reasonably predictable costs of completion and disposal. Raw materials cost is determined using the first-in, first-out method, and work-in-process and finished goods costs are determined on a standard cost basis, which includes materials, labor and manufacturing overhead. The Company reduces the carrying value of its inventories for differences between the cost and the estimated net realizable value, taking into account usage, expected demand, technological obsolescence and other information. The Company establishes inventory reserves when conditions exist that suggest inventory may be in excess of anticipated demand or is obsolete based on customer specifications. The Company evaluates the ability to realize the value of its inventory based on a combination of factors, including forecasted sales, estimated current and future market value and changes in customers’ product specifications. The Company’s method of estimating excess and obsolete inventory has remained consistent for all periods presented. Inventories consisted of the following: <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 10pt Calibri, Helvetica, Sans-Serif"> <tr style="vertical-align: bottom"> <td style="text-align: center"> </td><td style="font-family: Times New Roman, Times, Serif; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-family: Times New Roman, Times, Serif; font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">March 31, 2021</td><td style="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif; font-weight: bold"> </td><td style="font-family: Times New Roman, Times, Serif; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-family: Times New Roman, Times, Serif; font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">December 31, 2020</td><td style="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: center"> </td><td style="font-family: Times New Roman, Times, Serif; font-weight: bold"> </td> <td colspan="6" style="font-family: Times New Roman, Times, Serif; font-weight: bold; text-align: center">(in thousands)</td><td style="font-family: Times New Roman, Times, Serif; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 76%; font-family: Times New Roman, Times, Serif; text-align: left">Raw materials</td><td style="width: 1%; font-family: Times New Roman, Times, Serif"> </td> <td style="width: 1%; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="width: 9%; font-family: Times New Roman, Times, Serif; text-align: right">468</td><td style="width: 1%; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="width: 1%; font-family: Times New Roman, Times, Serif"> </td> <td style="width: 1%; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="width: 9%; font-family: Times New Roman, Times, Serif; text-align: right">468</td><td style="width: 1%; font-family: Times New Roman, Times, Serif; text-align: left"> </td></tr> <tr style="vertical-align: bottom; "> <td style="font-family: Times New Roman, Times, Serif">Work-in-process</td><td style="font-family: Times New Roman, Times, Serif"> </td> <td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; text-align: right">452</td><td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif"> </td> <td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; text-align: right">614</td><td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-family: Times New Roman, Times, Serif; text-align: left; padding-bottom: 1.5pt">Finished goods</td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: right">594</td><td style="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: right">459</td><td style="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td></tr> <tr style="vertical-align: bottom; "> <td style="padding-bottom: 4pt"> </td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: right">1,514</td><td style="padding-bottom: 4pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: right">1,541</td><td style="padding-bottom: 4pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td></tr> </table> As of December 31, 2020 and March 31, 2021, the Company made the determination that raw material inventories were such that the likelihood of significant usage within the current year was doubtful and reclassified such raw material inventories as non-current in the reported financial statements.  Property and equipment Property and equipment consisted of the following: <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 10pt Calibri, Helvetica, Sans-Serif"> <tr style="vertical-align: bottom"> <td style="text-align: center"> </td><td style="font-family: Times New Roman, Times, Serif; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-family: Times New Roman, Times, Serif; font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">March 31, 2021</td><td style="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif; font-weight: bold"> </td><td style="font-family: Times New Roman, Times, Serif; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-family: Times New Roman, Times, Serif; font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">December 31, 2020</td><td style="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: center"> </td><td style="font-family: Times New Roman, Times, Serif; font-weight: bold"> </td> <td colspan="6" style="font-family: Times New Roman, Times, Serif; font-weight: bold; text-align: center">(in thousands)</td><td style="font-family: Times New Roman, Times, Serif; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 76%; font-family: Times New Roman, Times, Serif; text-align: left">Machinery, equipment and tooling</td><td style="width: 1%; font-family: Times New Roman, Times, Serif"> </td> <td style="width: 1%; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="width: 9%; font-family: Times New Roman, Times, Serif; text-align: right">3,343</td><td style="width: 1%; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="width: 1%; font-family: Times New Roman, Times, Serif"> </td> <td style="width: 1%; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="width: 9%; font-family: Times New Roman, Times, Serif; text-align: right">3,343</td><td style="width: 1%; font-family: Times New Roman, Times, Serif; text-align: left"> </td></tr> <tr style="vertical-align: bottom; "> <td style="font-family: Times New Roman, Times, Serif">Buildings</td><td style="font-family: Times New Roman, Times, Serif"> </td> <td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; text-align: right">1,711</td><td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif"> </td> <td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; text-align: right">1,711</td><td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-family: Times New Roman, Times, Serif; text-align: left">Information systems</td><td style="font-family: Times New Roman, Times, Serif"> </td> <td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; text-align: right">835</td><td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif"> </td> <td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; text-align: right">835</td><td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td></tr> <tr style="vertical-align: bottom; "> <td style="font-family: Times New Roman, Times, Serif; text-align: left">Land and land improvements</td><td style="font-family: Times New Roman, Times, Serif"> </td> <td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; text-align: right">594</td><td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif"> </td> <td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; text-align: right">594</td><td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-family: Times New Roman, Times, Serif; text-align: left; padding-bottom: 1.5pt">Furniture and fixtures</td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: right">8</td><td style="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: right">8</td><td style="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td></tr> <tr style="vertical-align: bottom; "> <td style="font-family: Times New Roman, Times, Serif; text-align: left">Total cost</td><td style="font-family: Times New Roman, Times, Serif"> </td> <td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; text-align: right">6,491</td><td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif"> </td> <td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; text-align: right">6,491</td><td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-family: Times New Roman, Times, Serif; text-align: left; padding-bottom: 1.5pt">Accumulated depreciation and amortization</td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: right">(4,050</td><td style="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif; text-align: left">)</td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: right">(4,009</td><td style="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif; text-align: left">)</td></tr> <tr style="vertical-align: bottom; "> <td style="font-family: Times New Roman, Times, Serif; text-align: left; padding-bottom: 4pt">Property and equipment, net</td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: right">2,441</td><td style="padding-bottom: 4pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: right">2,482</td><td style="padding-bottom: 4pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td></tr> </table> Assets held for sale and long-lived assets When circumstances, such as adverse market conditions, indicate that the carrying value of a long-lived asset may be impaired, the Company performs an analysis to review the recoverability of the asset’s carrying value. The Company makes estimates of the undiscounted cash flows (excluding interest charges) from the expected future operations of the asset. These estimates consider factors such as expected future operating income, operating trends and prospects, as well as the effects of demand, competition and other factors. If the analysis indicates that the carrying value is not recoverable from future cash flows, an impairment loss is recognized to the extent that the carrying value exceeds the estimated fair value. The estimated fair value of assets is determined using appraisal techniques, which assume the highest and best use of the asset by market participants, considering the use of the asset that is physically possible, legally permissible and financially feasible at the measurement date. Any impairment losses are recorded as operating expenses which reduce net income. For the year ended December 31, 2020, the Company reviewed the current fair value of its assets and concluded no adjustments were needed. Additionally, no adjustments were recorded for the three months ended March 31, 2021. The Company will continue to assess its long-lived assets to ensure the carrying amount of these assets is still appropriate given any changes in the asset usage, marketplace and other factors used in determining the current fair value. The Company did not record any sales of its equipment or consumable assets for the three months ended March 31, 2021. The Company is pursuing the sale of our parcel of land located in Batavia, Illinois. Although the Company cannot assure the timing of this sale, the property was classified as current asset held for sale at March 31, 2021 and December 31, 2020, as it is our intention to complete this sale within the next twelve-month period. We cannot guarantee that we will be able to successfully complete the sale or lease of this asset. Revenue recognition The Company recognizes revenue in accordance with ASC Topic 606, Revenue From Contracts with Customers (“Topic 606”), when performance obligations under a purchase order or signed quotation are satisfied. The Company’s business practice commits the Company to manufacture and deliver product upon acceptance of a customer’s purchase order or signed quotation (“agreement”). The agreement with the customer includes specifications of the product to be delivered, price, expected ship date and payment terms. The Company’s agreements generally do not contain variable, financing, rights of return or non-cash components. There are no up-front costs to develop the production process. The performance obligation is satisfied at the point in time (single performance obligation) when the product is manufactured to the customer’s specification, as performance does not create an asset with an alternative use to the Company. Accordingly, the Company recognizes revenue when the product is shipped, and control of the product, title and risk of loss have been transferred to the customer. The Company grants credit terms considering normal collection risk. If there is doubt about collection, full prepayment for the order is required. Any payments received prior to shipment are recorded as deferred revenue and included in Advance Payments in the Consolidated Balance Sheets. We do not provide maintenance or other services and do not have sales that involve bill & hold arrangements, multiple elements or deliverables. However, we do provide product warranty for up to 90 days, for which we have accrued a warranty reserve of $2,000 and $2,000 at March 31, 2021 and December 31, 2020, respectively. Net income (loss) per common share Basic net income (loss) per common share is computed by dividing net income (loss) by the weighted-average number of common shares outstanding during the period. Diluted net income (loss) per common share is computed by dividing net income (loss) by the weighted-average number of diluted common shares outstanding during the period. Diluted shares outstanding are calculated by adding to the weighted-average shares (a) any outstanding stock options based on the treasury stock method and (b) restricted stock units (“RSU”). Diluted net income per common share was the same as basic net income per common share for the three months ended March 31, 2021 and 2020, because the effects of potentially dilutive securities did not have a material impact on the calculation of diluted net income per share. The Company had outstanding options exercisable into 18,250 and 19,500 shares of the Company’s common stock that would have had an anti-dilutive effect at March 31, 2021 and 2020, respectively. New accounting pronouncements adopted  The Company has evaluated other recently issued accounting pronouncements and does not believe that any of these pronouncements will have a significant impact the Company’s consolidated financial statements and related disclosures.

Principles of consolidation The consolidated financial statements include the accounts of the Company and its wholly owned subsidiaries, Rubicon Technology Worldwide LLC, Rubicon Technology BP LLC, Rubicon Sapphire Technology (Malaysia) SDN BHD and Rubicon DTP LLC. All intercompany transactions and balances have been eliminated in consolidation.

Investments The Company invests available cash primarily in U.S. Treasury securities, investment grade commercial paper, FDIC guaranteed certificates of deposit, common stock, preferred stock, equity-related securities and corporate notes. Investments classified as available-for-sale debt securities are carried at fair value with unrealized gains and losses recorded in accumulated other comprehensive income (loss). Investments in common stock, preferred stock and equity-related securities are reported at fair value, with both realized and unrealized gains and losses recorded in other income (expense), in the consolidated statement of operations. Investments in which the Company has the ability and intent, if necessary, to liquidate are classified as short-term. The Company reviews its available-for-sale debt securities investments at the end of each quarter for other-than-temporary declines in fair value based on the specific identification method. The Company considers various factors in determining whether an impairment is other-than-temporary, including the severity and duration of the impairment, changes in underlying credit ratings, forecasted recovery, its ability and intent to hold the investment for a period of time sufficient to allow for any anticipated recovery in market value and the probability that the scheduled cash payments will continue to be made. When the Company concludes that an other-than-temporary impairment has resulted, the difference between the fair value and carrying value is written off and recorded as a charge on the consolidated statement of operations.

Accounts receivable The majority of the Company’s accounts receivable is due from defense subcontractors, industrial manufacturers, fabricators and resellers. Credit is extended based on an evaluation of the customer’s financial condition. Accounts receivable are due based on contract terms and at stated amounts due from customers, net of an allowance for doubtful accounts. Losses from credit sales are provided for in the financial statements. Accounts outstanding longer than the contractual payment terms are considered past due. The Company determines its allowance by considering a number of factors, including length of time customer’s account is past due, customer’s current ability to pay and the condition of the general economy and industry as a whole. The Company writes off accounts receivable when they are deemed uncollectible and such write-offs, net of payments received, are recorded as a reduction to the allowance.

Purchases of Equity Securities by the Issuer and Affiliated Purchasers In November 2018, the Company’s Board of Directors authorized a program to repurchase up to $3,000,000 of its common stock. In July 2020, the Company used all of the original authorized $3,000,000. On December 14, 2020, Rubicon’s Board of Directors authorized an additional $3,000,000 for the repurchase of the Company’s common stock. The Company’s share repurchase program does not obligate it to acquire any specific number of shares. The timing, price and volume of repurchases will be based on market conditions, relevant securities laws and other factors. The stock repurchases may be made from time to time, through solicited or unsolicited transactions in the open market, in privately negotiated transactions or pursuant to a Rule 10b5-1 plan. The program may be terminated, suspended or modified at any time. There can be no assurance as to the number of shares of common stock repurchased. The Company records treasury stock purchases under the cost method whereby the entire cost of the acquired stock is recorded as treasury stock. No shares of the Company’s common stock were repurchased during the three months ended March 31, 2021. The dollar value of shares that may yet to be purchased under the program is $3,000,000.

3000000

Inventories Inventories are valued at the lower of cost or net realizable value. Net realizable value is determined based on an estimated selling price in the ordinary course of business less reasonably predictable costs of completion and disposal. Raw materials cost is determined using the first-in, first-out method, and work-in-process and finished goods costs are determined on a standard cost basis, which includes materials, labor and manufacturing overhead. The Company reduces the carrying value of its inventories for differences between the cost and the estimated net realizable value, taking into account usage, expected demand, technological obsolescence and other information. The Company establishes inventory reserves when conditions exist that suggest inventory may be in excess of anticipated demand or is obsolete based on customer specifications. The Company evaluates the ability to realize the value of its inventory based on a combination of factors, including forecasted sales, estimated current and future market value and changes in customers’ product specifications. The Company’s method of estimating excess and obsolete inventory has remained consistent for all periods presented. Inventories consisted of the following: <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 10pt Calibri, Helvetica, Sans-Serif"> <tr style="vertical-align: bottom"> <td style="text-align: center"> </td><td style="font-family: Times New Roman, Times, Serif; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-family: Times New Roman, Times, Serif; font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">March 31, 2021</td><td style="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif; font-weight: bold"> </td><td style="font-family: Times New Roman, Times, Serif; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-family: Times New Roman, Times, Serif; font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">December 31, 2020</td><td style="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: center"> </td><td style="font-family: Times New Roman, Times, Serif; font-weight: bold"> </td> <td colspan="6" style="font-family: Times New Roman, Times, Serif; font-weight: bold; text-align: center">(in thousands)</td><td style="font-family: Times New Roman, Times, Serif; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 76%; font-family: Times New Roman, Times, Serif; text-align: left">Raw materials</td><td style="width: 1%; font-family: Times New Roman, Times, Serif"> </td> <td style="width: 1%; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="width: 9%; font-family: Times New Roman, Times, Serif; text-align: right">468</td><td style="width: 1%; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="width: 1%; font-family: Times New Roman, Times, Serif"> </td> <td style="width: 1%; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="width: 9%; font-family: Times New Roman, Times, Serif; text-align: right">468</td><td style="width: 1%; font-family: Times New Roman, Times, Serif; text-align: left"> </td></tr> <tr style="vertical-align: bottom; "> <td style="font-family: Times New Roman, Times, Serif">Work-in-process</td><td style="font-family: Times New Roman, Times, Serif"> </td> <td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; text-align: right">452</td><td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif"> </td> <td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; text-align: right">614</td><td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-family: Times New Roman, Times, Serif; text-align: left; padding-bottom: 1.5pt">Finished goods</td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: right">594</td><td style="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: right">459</td><td style="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td></tr> <tr style="vertical-align: bottom; "> <td style="padding-bottom: 4pt"> </td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: right">1,514</td><td style="padding-bottom: 4pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: right">1,541</td><td style="padding-bottom: 4pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td></tr> </table> As of December 31, 2020 and March 31, 2021, the Company made the determination that raw material inventories were such that the likelihood of significant usage within the current year was doubtful and reclassified such raw material inventories as non-current in the reported financial statements.

Property and equipment Property and equipment consisted of the following: <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 10pt Calibri, Helvetica, Sans-Serif"> <tr style="vertical-align: bottom"> <td style="text-align: center"> </td><td style="font-family: Times New Roman, Times, Serif; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-family: Times New Roman, Times, Serif; font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">March 31, 2021</td><td style="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif; font-weight: bold"> </td><td style="font-family: Times New Roman, Times, Serif; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-family: Times New Roman, Times, Serif; font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">December 31, 2020</td><td style="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="text-align: center"> </td><td style="font-family: Times New Roman, Times, Serif; font-weight: bold"> </td> <td colspan="6" style="font-family: Times New Roman, Times, Serif; font-weight: bold; text-align: center">(in thousands)</td><td style="font-family: Times New Roman, Times, Serif; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 76%; font-family: Times New Roman, Times, Serif; text-align: left">Machinery, equipment and tooling</td><td style="width: 1%; font-family: Times New Roman, Times, Serif"> </td> <td style="width: 1%; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="width: 9%; font-family: Times New Roman, Times, Serif; text-align: right">3,343</td><td style="width: 1%; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="width: 1%; font-family: Times New Roman, Times, Serif"> </td> <td style="width: 1%; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="width: 9%; font-family: Times New Roman, Times, Serif; text-align: right">3,343</td><td style="width: 1%; font-family: Times New Roman, Times, Serif; text-align: left"> </td></tr> <tr style="vertical-align: bottom; "> <td style="font-family: Times New Roman, Times, Serif">Buildings</td><td style="font-family: Times New Roman, Times, Serif"> </td> <td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; text-align: right">1,711</td><td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif"> </td> <td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; text-align: right">1,711</td><td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-family: Times New Roman, Times, Serif; text-align: left">Information systems</td><td style="font-family: Times New Roman, Times, Serif"> </td> <td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; text-align: right">835</td><td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif"> </td> <td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; text-align: right">835</td><td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td></tr> <tr style="vertical-align: bottom; "> <td style="font-family: Times New Roman, Times, Serif; text-align: left">Land and land improvements</td><td style="font-family: Times New Roman, Times, Serif"> </td> <td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; text-align: right">594</td><td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif"> </td> <td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; text-align: right">594</td><td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-family: Times New Roman, Times, Serif; text-align: left; padding-bottom: 1.5pt">Furniture and fixtures</td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: right">8</td><td style="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: right">8</td><td style="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td></tr> <tr style="vertical-align: bottom; "> <td style="font-family: Times New Roman, Times, Serif; text-align: left">Total cost</td><td style="font-family: Times New Roman, Times, Serif"> </td> <td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; text-align: right">6,491</td><td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif"> </td> <td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; text-align: right">6,491</td><td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-family: Times New Roman, Times, Serif; text-align: left; padding-bottom: 1.5pt">Accumulated depreciation and amortization</td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: right">(4,050</td><td style="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif; text-align: left">)</td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: right">(4,009</td><td style="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif; text-align: left">)</td></tr> <tr style="vertical-align: bottom; "> <td style="font-family: Times New Roman, Times, Serif; text-align: left; padding-bottom: 4pt">Property and equipment, net</td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: right">2,441</td><td style="padding-bottom: 4pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: right">2,482</td><td style="padding-bottom: 4pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td></tr> </table>

Assets held for sale and long-lived assets When circumstances, such as adverse market conditions, indicate that the carrying value of a long-lived asset may be impaired, the Company performs an analysis to review the recoverability of the asset’s carrying value. The Company makes estimates of the undiscounted cash flows (excluding interest charges) from the expected future operations of the asset. These estimates consider factors such as expected future operating income, operating trends and prospects, as well as the effects of demand, competition and other factors. If the analysis indicates that the carrying value is not recoverable from future cash flows, an impairment loss is recognized to the extent that the carrying value exceeds the estimated fair value. The estimated fair value of assets is determined using appraisal techniques, which assume the highest and best use of the asset by market participants, considering the use of the asset that is physically possible, legally permissible and financially feasible at the measurement date. Any impairment losses are recorded as operating expenses which reduce net income. For the year ended December 31, 2020, the Company reviewed the current fair value of its assets and concluded no adjustments were needed. Additionally, no adjustments were recorded for the three months ended March 31, 2021. The Company will continue to assess its long-lived assets to ensure the carrying amount of these assets is still appropriate given any changes in the asset usage, marketplace and other factors used in determining the current fair value. The Company did not record any sales of its equipment or consumable assets for the three months ended March 31, 2021. The Company is pursuing the sale of our parcel of land located in Batavia, Illinois. Although the Company cannot assure the timing of this sale, the property was classified as current asset held for sale at March 31, 2021 and December 31, 2020, as it is our intention to complete this sale within the next twelve-month period. We cannot guarantee that we will be able to successfully complete the sale or lease of this asset.

Revenue recognition The Company recognizes revenue in accordance with ASC Topic 606, Revenue From Contracts with Customers (“Topic 606”), when performance obligations under a purchase order or signed quotation are satisfied. The Company’s business practice commits the Company to manufacture and deliver product upon acceptance of a customer’s purchase order or signed quotation (“agreement”). The agreement with the customer includes specifications of the product to be delivered, price, expected ship date and payment terms. The Company’s agreements generally do not contain variable, financing, rights of return or non-cash components. There are no up-front costs to develop the production process. The performance obligation is satisfied at the point in time (single performance obligation) when the product is manufactured to the customer’s specification, as performance does not create an asset with an alternative use to the Company. Accordingly, the Company recognizes revenue when the product is shipped, and control of the product, title and risk of loss have been transferred to the customer. The Company grants credit terms considering normal collection risk. If there is doubt about collection, full prepayment for the order is required. Any payments received prior to shipment are recorded as deferred revenue and included in Advance Payments in the Consolidated Balance Sheets. We do not provide maintenance or other services and do not have sales that involve bill & hold arrangements, multiple elements or deliverables. However, we do provide product warranty for up to 90 days, for which we have accrued a warranty reserve of $2,000 and $2,000 at March 31, 2021 and December 31, 2020, respectively.

P90D

2000

Net income (loss) per common share Basic net income (loss) per common share is computed by dividing net income (loss) by the weighted-average number of common shares outstanding during the period. Diluted net income (loss) per common share is computed by dividing net income (loss) by the weighted-average number of diluted common shares outstanding during the period. Diluted shares outstanding are calculated by adding to the weighted-average shares (a) any outstanding stock options based on the treasury stock method and (b) restricted stock units (“RSU”). Diluted net income per common share was the same as basic net income per common share for the three months ended March 31, 2021 and 2020, because the effects of potentially dilutive securities did not have a material impact on the calculation of diluted net income per share. The Company had outstanding options exercisable into 18,250 and 19,500 shares of the Company’s common stock that would have had an anti-dilutive effect at March 31, 2021 and 2020, respectively.

18250 19500

New accounting pronouncements adopted  The Company has evaluated other recently issued accounting pronouncements and does not believe that any of these pronouncements will have a significant impact the Company’s consolidated financial statements and related disclosures.

468000

452000

614000

594000

459000

1514000

1541000

3343000

1711000

835000

594000

8000

6491000

4050000

4009000

3. INVESTMENTS The Company invests its available cash primarily in U.S. Treasury securities, investment grade commercial paper, FDIC guaranteed certificates of deposit, common stock, preferred stock, equity-related securities and corporate notes. Investments classified as available-for-sale debt securities are carried at fair value with unrealized gains and losses recorded in accumulated other comprehensive income/(loss). Investments in common stock, preferred stock and equity-related securities are reported at fair value, with both realized and unrealized gains and losses recorded in other income (expense), in the consolidated statements of operations. The following table presents the amortized cost and gross unrealized losses on all securities at March 31, 2021: <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 10pt Times New Roman, Times, Serif"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Amortized cost</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Gross unrealized gains</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Gross unrealized losses</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Fair value</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold"> </td> <td colspan="14" style="font-weight: bold; text-align: center">(in thousands)</td><td style="font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td>Short-term investments:</td><td> </td> <td colspan="2"> </td><td> </td><td> </td> <td colspan="2"> </td><td> </td><td> </td> <td colspan="2"> </td><td> </td><td> </td> <td colspan="2"> </td><td> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 52%; text-align: left">U.S. Treasury securities</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right">14,749</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right">       —</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right">       —</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right">14,749</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; "> <td style="text-align: left; padding-bottom: 1.5pt">Marketable securities</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left">$</td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 4pt; padding-left: 10pt">Total short-term investments</td><td style="padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; text-align: left">$</td><td style="border-bottom: Black 4pt double; text-align: right">14,749</td><td style="padding-bottom: 4pt; text-align: left"> </td><td style="padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; text-align: left">$</td><td style="border-bottom: Black 4pt double; text-align: right">—</td><td style="padding-bottom: 4pt; text-align: left"> </td><td style="padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; text-align: left">$</td><td style="border-bottom: Black 4pt double; text-align: right">—</td><td style="padding-bottom: 4pt; text-align: left"> </td><td style="padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; text-align: left">$</td><td style="border-bottom: Black 4pt double; text-align: right">14,749</td><td style="padding-bottom: 4pt; text-align: left"> </td></tr> </table> The following table presents the amortized cost and gross unrealized losses on all securities at December 31, 2020: <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 10pt Times New Roman, Times, Serif"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Amortized cost</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Gross unrealized gains</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Gross unrealized losses</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Fair value</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold"> </td> <td colspan="14" style="font-weight: bold; text-align: center">(in thousands)</td><td style="font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td>Short-term investments:</td><td> </td> <td colspan="2"> </td><td> </td><td> </td> <td colspan="2"> </td><td> </td><td> </td> <td colspan="2"> </td><td> </td><td> </td> <td colspan="2"> </td><td> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 52%; text-align: left">U.S. Treasury securities</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right">14,748</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right">       —</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right">       —</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right">14,748</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; "> <td style="text-align: left; padding-bottom: 1.5pt">Marketable securities</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 4pt; padding-left: 9pt">Total short-term investments</td><td style="padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; text-align: left">$</td><td style="border-bottom: Black 4pt double; text-align: right">14,748</td><td style="padding-bottom: 4pt; text-align: left"> </td><td style="padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; text-align: left">$</td><td style="border-bottom: Black 4pt double; text-align: right">—</td><td style="padding-bottom: 4pt; text-align: left"> </td><td style="padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; text-align: left">$</td><td style="border-bottom: Black 4pt double; text-align: right">—</td><td style="padding-bottom: 4pt; text-align: left"> </td><td style="padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; text-align: left">$</td><td style="border-bottom: Black 4pt double; text-align: right">14,748</td><td style="padding-bottom: 4pt; text-align: left"> </td></tr> </table> The Company values its investments at fair value, defined as the price that would be received to sell an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. Valuation techniques used to measure fair value must maximize the use of observable inputs and minimize the use of unobservable inputs. The standard describes a fair value hierarchy based on three levels of inputs, of which the first two are considered observable and the last unobservable, that may be used to measure fair value, which are the following: <table cellpadding="0" cellspacing="0" style="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"> <tr style="vertical-align: top"> <td style="width: 0.25in; text-align: justify; line-height: 107%"> </td> <td style="width: 0.25in; text-align: justify; line-height: 107%">●</td> <td style="text-align: justify; line-height: 107%">Level 1—Quoted prices in active markets for identical assets or liabilities.</td></tr> <tr style="vertical-align: top"> <td style="text-align: justify; line-height: 107%"> </td> <td style="text-align: justify; line-height: 107%"> </td> <td style="text-align: justify; line-height: 107%"> </td></tr> </table> <table cellpadding="0" cellspacing="0" style="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"> <tr style="vertical-align: top"> <td style="width: 0.25in; text-align: justify; line-height: 107%"> </td> <td style="width: 0.25in; text-align: justify; line-height: 107%">●</td> <td style="text-align: justify; line-height: 107%">Level 2—Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.</td></tr> <tr style="vertical-align: top"> <td style="text-align: justify; line-height: 107%"> </td> <td style="text-align: justify; line-height: 107%"> </td> <td style="text-align: justify; line-height: 107%"> </td></tr> </table> <table cellpadding="0" cellspacing="0" style="width: 100%; font: 10pt Times New Roman, Times, Serif; margin-top: 0pt; margin-bottom: 0pt"> <tr style="vertical-align: top"> <td style="width: 0.25in; text-align: justify; line-height: 107%"> </td> <td style="width: 0.25in; text-align: justify; line-height: 107%">●</td> <td style="text-align: justify; line-height: 107%">Level 3—Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.</td></tr> </table> The Company invests in fixed-income, common stock, preferred stock and equity-related securities. Its fixed-income available-for-sale debt securities consist of U.S. Treasury securities, high-quality investment grade commercial paper, FDIC guaranteed certificates of deposit, and corporate notes. The Company values these securities based on pricing from pricing vendors, who may use quoted prices in active markets for identical assets (Level 1 inputs) or inputs other than quoted prices that are observable either directly or indirectly (Level 2 inputs) in determining fair value. The valuation techniques used to measure the fair value of the Company’s financial instruments having Level 2 inputs were derived from non-binding market consensus prices that are corroborated by observable market data, quoted market prices for similar instruments, or pricing models, such as discounted cash flow techniques. The following table summarizes the Company’s financial assets measured at fair value on a recurring basis as of March 31, 2021: <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 10pt Calibri, Helvetica, Sans-Serif"> <tr style="vertical-align: bottom"> <td style="padding-bottom: 0pt"> </td><td style="font-family: Times New Roman, Times, Serif; font-weight: bold; padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Level 1</td><td style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; font-weight: bold"> </td><td style="font-family: Times New Roman, Times, Serif; font-weight: bold; padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Level 2</td><td style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; font-weight: bold"> </td><td style="font-family: Times New Roman, Times, Serif; font-weight: bold; padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Level 3</td><td style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; font-weight: bold"> </td><td style="font-family: Times New Roman, Times, Serif; font-weight: bold; padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Total</td><td style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="padding-bottom: 0pt"> </td><td style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; font-weight: bold"> </td> <td colspan="14" style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; font-weight: bold; text-align: center">(in thousands)</td><td style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="padding-bottom: 0pt"> </td><td style="padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; text-align: center"> </td><td style="padding-bottom: 0pt"> </td><td style="padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; text-align: center"> </td><td style="padding-bottom: 0pt"> </td><td style="padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; text-align: center"> </td><td style="padding-bottom: 0pt"> </td><td style="padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; text-align: center"> </td><td style="padding-bottom: 0pt"> </td></tr> <tr style="vertical-align: bottom"> <td style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif">Cash equivalents:</td><td style="padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt"> </td><td style="padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt"> </td><td style="padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt"> </td><td style="padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-bottom: 0pt; width: 52%; font-family: Times New Roman, Times, Serif; text-align: left; padding-left: 10pt">Money market funds</td><td style="padding-bottom: 0pt; width: 1%; font-family: Times New Roman, Times, Serif"> </td> <td style="padding-bottom: 0pt; width: 1%; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="padding-bottom: 0pt; width: 9%; font-family: Times New Roman, Times, Serif; text-align: right">3,137</td><td style="padding-bottom: 0pt; width: 1%; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="padding-bottom: 0pt; width: 1%; font-family: Times New Roman, Times, Serif"> </td> <td style="padding-bottom: 0pt; width: 1%; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="padding-bottom: 0pt; width: 9%; font-family: Times New Roman, Times, Serif; text-align: right">—</td><td style="padding-bottom: 0pt; width: 1%; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="padding-bottom: 0pt; width: 1%; font-family: Times New Roman, Times, Serif"> </td> <td style="padding-bottom: 0pt; width: 1%; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="padding-bottom: 0pt; width: 9%; font-family: Times New Roman, Times, Serif; text-align: right">—</td><td style="padding-bottom: 0pt; width: 1%; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="padding-bottom: 0pt; width: 1%; font-family: Times New Roman, Times, Serif"> </td> <td style="padding-bottom: 0pt; width: 1%; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="padding-bottom: 0pt; width: 9%; font-family: Times New Roman, Times, Serif; text-align: right">3,137</td><td style="padding-bottom: 0pt; width: 1%; font-family: Times New Roman, Times, Serif; text-align: left"> </td></tr> <tr style="vertical-align: bottom; "> <td style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif">Investments:</td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; text-align: left; padding-left: 10pt">Available-for-sale securities — current:</td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; "> <td style="font-family: Times New Roman, Times, Serif; text-align: left; padding-bottom: 0pt; padding-left: 20pt">U.S. Treasury securities</td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="padding-bottom: 0pt; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: right">—</td><td style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="padding-bottom: 0pt; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: right">14,749</td><td style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="padding-bottom: 0pt; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: right">—</td><td style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="padding-bottom: 0pt; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: right">14,749</td><td style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-family: Times New Roman, Times, Serif; padding-bottom: 0pt; padding-left: 20pt">Total</td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="padding-bottom: 0pt; border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: right">3,137</td><td style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="padding-bottom: 0pt; border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: right">14,749</td><td style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="padding-bottom: 0pt; border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: right">—</td><td style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="padding-bottom: 0pt; border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: right">17,886</td><td style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td></tr> <tr style="vertical-align: bottom; "> <td style="padding-bottom: 0pt; padding-left: 30pt"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td></tr> </table> The following table summarizes the Company’s financial assets measured at fair value on a recurring basis as of December 31, 2020: <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 10pt Times New Roman, Times, Serif"> <tr style="vertical-align: bottom"> <td style="padding-bottom: 0pt"> </td><td style="font-weight: bold; padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Level 1</td><td style="padding-bottom: 0pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Level 2</td><td style="padding-bottom: 0pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Level 3</td><td style="padding-bottom: 0pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Total</td><td style="padding-bottom: 0pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="padding-bottom: 0pt"> </td><td style="padding-bottom: 0pt; font-weight: bold"> </td> <td colspan="14" style="padding-bottom: 0pt; font-weight: bold; text-align: center">(in thousands)</td><td style="padding-bottom: 0pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="padding-bottom: 0pt"> </td><td style="padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; text-align: center"> </td><td style="padding-bottom: 0pt"> </td><td style="padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; text-align: center"> </td><td style="padding-bottom: 0pt"> </td><td style="padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; text-align: center"> </td><td style="padding-bottom: 0pt"> </td><td style="padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; text-align: center"> </td><td style="padding-bottom: 0pt"> </td></tr> <tr style="vertical-align: bottom"> <td style="padding-bottom: 0pt">Cash equivalents:</td><td style="padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt"> </td><td style="padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt"> </td><td style="padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt"> </td><td style="padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-bottom: 0pt; width: 52%; text-align: left; padding-left: 9pt">Money market funds</td><td style="padding-bottom: 0pt; width: 1%"> </td> <td style="padding-bottom: 0pt; width: 1%; text-align: left">$</td><td style="padding-bottom: 0pt; width: 9%; text-align: right">3,136</td><td style="padding-bottom: 0pt; width: 1%; text-align: left"> </td><td style="padding-bottom: 0pt; width: 1%"> </td> <td style="padding-bottom: 0pt; width: 1%; text-align: left">$</td><td style="padding-bottom: 0pt; width: 9%; text-align: right">—</td><td style="padding-bottom: 0pt; width: 1%; text-align: left"> </td><td style="padding-bottom: 0pt; width: 1%"> </td> <td style="padding-bottom: 0pt; width: 1%; text-align: left">$</td><td style="padding-bottom: 0pt; width: 9%; text-align: right">—</td><td style="padding-bottom: 0pt; width: 1%; text-align: left"> </td><td style="padding-bottom: 0pt; width: 1%"> </td> <td style="padding-bottom: 0pt; width: 1%; text-align: left">$</td><td style="padding-bottom: 0pt; width: 9%; text-align: right">3,136</td><td style="padding-bottom: 0pt; width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; "> <td style="padding-bottom: 0pt">Investments:</td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-bottom: 0pt; text-align: left; padding-left: 9pt">Available-for-sale securities — current:</td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; "> <td style="text-align: left; padding-bottom: 0pt; padding-left: 0.25in">U.S. Treasury securities</td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="padding-bottom: 0pt; border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="padding-bottom: 0pt; border-bottom: Black 1.5pt solid; text-align: right">14,748</td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="padding-bottom: 0pt; border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="padding-bottom: 0pt; border-bottom: Black 1.5pt solid; text-align: right">14,748</td><td style="padding-bottom: 0pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-bottom: 0pt; padding-left: 0.25in">Total</td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; border-bottom: Black 4pt double; text-align: left">$</td><td style="padding-bottom: 0pt; border-bottom: Black 4pt double; text-align: right">3,136</td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; border-bottom: Black 4pt double; text-align: left">$</td><td style="padding-bottom: 0pt; border-bottom: Black 4pt double; text-align: right">14,748</td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; border-bottom: Black 4pt double; text-align: left">$</td><td style="padding-bottom: 0pt; border-bottom: Black 4pt double; text-align: right">—</td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; border-bottom: Black 4pt double; text-align: left">$</td><td style="padding-bottom: 0pt; border-bottom: Black 4pt double; text-align: right">17,884</td><td style="padding-bottom: 0pt; text-align: left"> </td></tr> </table> There are no terms or conditions restricting the Company from redeeming any of its investments. In addition to the securities noted above, the Company had approximately $7,434,000 and $7,994,000 of time deposits included in cash and cash equivalents as of March 31, 2021 and December 31, 2020, respectively.

7434000

7994000

<table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 10pt Times New Roman, Times, Serif"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Amortized cost</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Gross unrealized gains</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Gross unrealized losses</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Fair value</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold"> </td> <td colspan="14" style="font-weight: bold; text-align: center">(in thousands)</td><td style="font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td>Short-term investments:</td><td> </td> <td colspan="2"> </td><td> </td><td> </td> <td colspan="2"> </td><td> </td><td> </td> <td colspan="2"> </td><td> </td><td> </td> <td colspan="2"> </td><td> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 52%; text-align: left">U.S. Treasury securities</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right">14,749</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right">       —</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right">       —</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right">14,749</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; "> <td style="text-align: left; padding-bottom: 1.5pt">Marketable securities</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left">$</td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 4pt; padding-left: 10pt">Total short-term investments</td><td style="padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; text-align: left">$</td><td style="border-bottom: Black 4pt double; text-align: right">14,749</td><td style="padding-bottom: 4pt; text-align: left"> </td><td style="padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; text-align: left">$</td><td style="border-bottom: Black 4pt double; text-align: right">—</td><td style="padding-bottom: 4pt; text-align: left"> </td><td style="padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; text-align: left">$</td><td style="border-bottom: Black 4pt double; text-align: right">—</td><td style="padding-bottom: 4pt; text-align: left"> </td><td style="padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; text-align: left">$</td><td style="border-bottom: Black 4pt double; text-align: right">14,749</td><td style="padding-bottom: 4pt; text-align: left"> </td></tr> </table><table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 10pt Times New Roman, Times, Serif"> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Amortized cost</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Gross unrealized gains</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Gross unrealized losses</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Fair value</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-weight: bold"> </td> <td colspan="14" style="font-weight: bold; text-align: center">(in thousands)</td><td style="font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td>Short-term investments:</td><td> </td> <td colspan="2"> </td><td> </td><td> </td> <td colspan="2"> </td><td> </td><td> </td> <td colspan="2"> </td><td> </td><td> </td> <td colspan="2"> </td><td> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 52%; text-align: left">U.S. Treasury securities</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right">14,748</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right">       —</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right">       —</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right">14,748</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; "> <td style="text-align: left; padding-bottom: 1.5pt">Marketable securities</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="text-align: left; padding-bottom: 4pt; padding-left: 9pt">Total short-term investments</td><td style="padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; text-align: left">$</td><td style="border-bottom: Black 4pt double; text-align: right">14,748</td><td style="padding-bottom: 4pt; text-align: left"> </td><td style="padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; text-align: left">$</td><td style="border-bottom: Black 4pt double; text-align: right">—</td><td style="padding-bottom: 4pt; text-align: left"> </td><td style="padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; text-align: left">$</td><td style="border-bottom: Black 4pt double; text-align: right">—</td><td style="padding-bottom: 4pt; text-align: left"> </td><td style="padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; text-align: left">$</td><td style="border-bottom: Black 4pt double; text-align: right">14,748</td><td style="padding-bottom: 4pt; text-align: left"> </td></tr> </table>

14749000

14748000

<table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 10pt Calibri, Helvetica, Sans-Serif"> <tr style="vertical-align: bottom"> <td style="padding-bottom: 0pt"> </td><td style="font-family: Times New Roman, Times, Serif; font-weight: bold; padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Level 1</td><td style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; font-weight: bold"> </td><td style="font-family: Times New Roman, Times, Serif; font-weight: bold; padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Level 2</td><td style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; font-weight: bold"> </td><td style="font-family: Times New Roman, Times, Serif; font-weight: bold; padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Level 3</td><td style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; font-weight: bold"> </td><td style="font-family: Times New Roman, Times, Serif; font-weight: bold; padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Total</td><td style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="padding-bottom: 0pt"> </td><td style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; font-weight: bold"> </td> <td colspan="14" style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; font-weight: bold; text-align: center">(in thousands)</td><td style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="padding-bottom: 0pt"> </td><td style="padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; text-align: center"> </td><td style="padding-bottom: 0pt"> </td><td style="padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; text-align: center"> </td><td style="padding-bottom: 0pt"> </td><td style="padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; text-align: center"> </td><td style="padding-bottom: 0pt"> </td><td style="padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; text-align: center"> </td><td style="padding-bottom: 0pt"> </td></tr> <tr style="vertical-align: bottom"> <td style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif">Cash equivalents:</td><td style="padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt"> </td><td style="padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt"> </td><td style="padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt"> </td><td style="padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-bottom: 0pt; width: 52%; font-family: Times New Roman, Times, Serif; text-align: left; padding-left: 10pt">Money market funds</td><td style="padding-bottom: 0pt; width: 1%; font-family: Times New Roman, Times, Serif"> </td> <td style="padding-bottom: 0pt; width: 1%; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="padding-bottom: 0pt; width: 9%; font-family: Times New Roman, Times, Serif; text-align: right">3,137</td><td style="padding-bottom: 0pt; width: 1%; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="padding-bottom: 0pt; width: 1%; font-family: Times New Roman, Times, Serif"> </td> <td style="padding-bottom: 0pt; width: 1%; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="padding-bottom: 0pt; width: 9%; font-family: Times New Roman, Times, Serif; text-align: right">—</td><td style="padding-bottom: 0pt; width: 1%; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="padding-bottom: 0pt; width: 1%; font-family: Times New Roman, Times, Serif"> </td> <td style="padding-bottom: 0pt; width: 1%; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="padding-bottom: 0pt; width: 9%; font-family: Times New Roman, Times, Serif; text-align: right">—</td><td style="padding-bottom: 0pt; width: 1%; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="padding-bottom: 0pt; width: 1%; font-family: Times New Roman, Times, Serif"> </td> <td style="padding-bottom: 0pt; width: 1%; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="padding-bottom: 0pt; width: 9%; font-family: Times New Roman, Times, Serif; text-align: right">3,137</td><td style="padding-bottom: 0pt; width: 1%; font-family: Times New Roman, Times, Serif; text-align: left"> </td></tr> <tr style="vertical-align: bottom; "> <td style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif">Investments:</td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; text-align: left; padding-left: 10pt">Available-for-sale securities — current:</td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; "> <td style="font-family: Times New Roman, Times, Serif; text-align: left; padding-bottom: 0pt; padding-left: 20pt">U.S. Treasury securities</td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="padding-bottom: 0pt; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: right">—</td><td style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="padding-bottom: 0pt; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: right">14,749</td><td style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="padding-bottom: 0pt; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: right">—</td><td style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="padding-bottom: 0pt; border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: right">14,749</td><td style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-family: Times New Roman, Times, Serif; padding-bottom: 0pt; padding-left: 20pt">Total</td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="padding-bottom: 0pt; border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: right">3,137</td><td style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="padding-bottom: 0pt; border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: right">14,749</td><td style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="padding-bottom: 0pt; border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: right">—</td><td style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="padding-bottom: 0pt; border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: right">17,886</td><td style="padding-bottom: 0pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td></tr> <tr style="vertical-align: bottom; "> <td style="padding-bottom: 0pt; padding-left: 30pt"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td></tr> </table><table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 10pt Times New Roman, Times, Serif"> <tr style="vertical-align: bottom"> <td style="padding-bottom: 0pt"> </td><td style="font-weight: bold; padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Level 1</td><td style="padding-bottom: 0pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Level 2</td><td style="padding-bottom: 0pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Level 3</td><td style="padding-bottom: 0pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Total</td><td style="padding-bottom: 0pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="padding-bottom: 0pt"> </td><td style="padding-bottom: 0pt; font-weight: bold"> </td> <td colspan="14" style="padding-bottom: 0pt; font-weight: bold; text-align: center">(in thousands)</td><td style="padding-bottom: 0pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td style="padding-bottom: 0pt"> </td><td style="padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; text-align: center"> </td><td style="padding-bottom: 0pt"> </td><td style="padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; text-align: center"> </td><td style="padding-bottom: 0pt"> </td><td style="padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; text-align: center"> </td><td style="padding-bottom: 0pt"> </td><td style="padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; text-align: center"> </td><td style="padding-bottom: 0pt"> </td></tr> <tr style="vertical-align: bottom"> <td style="padding-bottom: 0pt">Cash equivalents:</td><td style="padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt"> </td><td style="padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt"> </td><td style="padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt"> </td><td style="padding-bottom: 0pt"> </td> <td colspan="2" style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-bottom: 0pt; width: 52%; text-align: left; padding-left: 9pt">Money market funds</td><td style="padding-bottom: 0pt; width: 1%"> </td> <td style="padding-bottom: 0pt; width: 1%; text-align: left">$</td><td style="padding-bottom: 0pt; width: 9%; text-align: right">3,136</td><td style="padding-bottom: 0pt; width: 1%; text-align: left"> </td><td style="padding-bottom: 0pt; width: 1%"> </td> <td style="padding-bottom: 0pt; width: 1%; text-align: left">$</td><td style="padding-bottom: 0pt; width: 9%; text-align: right">—</td><td style="padding-bottom: 0pt; width: 1%; text-align: left"> </td><td style="padding-bottom: 0pt; width: 1%"> </td> <td style="padding-bottom: 0pt; width: 1%; text-align: left">$</td><td style="padding-bottom: 0pt; width: 9%; text-align: right">—</td><td style="padding-bottom: 0pt; width: 1%; text-align: left"> </td><td style="padding-bottom: 0pt; width: 1%"> </td> <td style="padding-bottom: 0pt; width: 1%; text-align: left">$</td><td style="padding-bottom: 0pt; width: 9%; text-align: right">3,136</td><td style="padding-bottom: 0pt; width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; "> <td style="padding-bottom: 0pt">Investments:</td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-bottom: 0pt; text-align: left; padding-left: 9pt">Available-for-sale securities — current:</td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt; text-align: right"> </td><td style="padding-bottom: 0pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; "> <td style="text-align: left; padding-bottom: 0pt; padding-left: 0.25in">U.S. Treasury securities</td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="padding-bottom: 0pt; border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="padding-bottom: 0pt; border-bottom: Black 1.5pt solid; text-align: right">14,748</td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="padding-bottom: 0pt; border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="padding-bottom: 0pt; border-bottom: Black 1.5pt solid; text-align: right">14,748</td><td style="padding-bottom: 0pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-bottom: 0pt; padding-left: 0.25in">Total</td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; border-bottom: Black 4pt double; text-align: left">$</td><td style="padding-bottom: 0pt; border-bottom: Black 4pt double; text-align: right">3,136</td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; border-bottom: Black 4pt double; text-align: left">$</td><td style="padding-bottom: 0pt; border-bottom: Black 4pt double; text-align: right">14,748</td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; border-bottom: Black 4pt double; text-align: left">$</td><td style="padding-bottom: 0pt; border-bottom: Black 4pt double; text-align: right">—</td><td style="padding-bottom: 0pt; text-align: left"> </td><td style="padding-bottom: 0pt"> </td> <td style="padding-bottom: 0pt; border-bottom: Black 4pt double; text-align: left">$</td><td style="padding-bottom: 0pt; border-bottom: Black 4pt double; text-align: right">17,884</td><td style="padding-bottom: 0pt; text-align: left"> </td></tr> </table>

3137000

14749000

3137000

14749000

17886000

3136000

14748000

3136000

14748000

17884000

4. SIGNIFICANT CUSTOMERS For the three months ended March 31, 2021, the Company had three customers individually that accounted for approximately 19%, 15%, and 11% of revenue. For the three months ended March 31, 2020, the Company had four customers individually that accounted for approximately 18%, 18%, 16% and 13% of revenue. No other customer accounted for 10% or more of the Company’s revenues during the three months ended March 31, 2021 and 2020. Customers individually representing more than 10% of trade receivables accounted for approximately 62% and 44% of accounts receivable as of March 31, 2021 and December 31, 2020, respectively.  3

0.19

0.15

0.11

0.18

0.16

0.13

0.10

0.62

0.44

5. STOCKHOLDERS’ EQUITY Common shares reserved As of March 31, 2021, the Company had reserved 65,103 shares of common stock for issuance upon the exercise of outstanding common stock options and vesting of RSUs. Also, 279,505 shares of the Company’s common stock were reserved for future grants of stock options and RSUs (or other similar equity instruments) under the Rubicon Technology, Inc. 2016 Stock Incentive Plan (the “2016 Plan”) as of March 31, 2021.

65103

279505

6. STOCK INCENTIVE PLANS In August 2007, the Company adopted the Rubicon Technology Inc. 2007 Stock Incentive Plan, which was amended and restated effective in March 2011 (the “2007 Plan”), and which allowed for the grant of incentive stock options, non-statutory stock options, stock appreciation rights, restricted stock, RSUs, performance awards and bonus shares. The maximum number of shares that could be awarded under the 2007 Plan was 440,769 shares. Options granted under the 2007 Plan entitled the holder to purchase shares of the Company’s common stock at the specified option exercise price, which could not be less than the fair value of the common stock on the grant date. On June 24, 2016, the plan terminated with the adoption of the Rubicon Technology, Inc. 2016 Stock Incentive Plan, (the “2016 Plan”). Any existing awards under the 2007 Plan remain outstanding in accordance with their current terms under the 2007 Plan. In June 2016, the Company’s stockholders approved adoption of the 2016 Plan effective as of March 17, 2016, which allows for the grant of incentive stock options, non-statutory stock options, stock appreciation rights, restricted stock, RSUs, performance awards and bonus shares. The Compensation Committee of the Board administers the 2016 Plan. The committee determines the type of award to be granted, the fair value, the number of shares covered by the award, and the time when the award vests and may be exercised. Pursuant to the 2016 Plan, as of March 31, 2021 there are 279,505 shares of the Company’s common stock plus any shares subject to outstanding awards under the 2007 Plan that subsequently expire unexercised, are forfeited without the delivery of shares or are settled in cash, will be available for issuance under the 2016 Plan. The 2016 Plan will automatically terminate on March 17, 2026, unless the Company terminates it sooner. The following table summarizes the activity of the stock incentive and equity plans as of March 31, 2021, and changes during the three months then ended: <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 10pt Times New Roman, Times, Serif"> <tr style="vertical-align: bottom"> <td style="text-align: center"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Shares available for grant</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Number of options outstanding</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Weighted- average option exercise price</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Number of restricted stock and board shares issued</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Number of RSUs outstanding</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 40%">At January 1, 2021</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 9%; text-align: right">296,105</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 9%; text-align: right">20,100</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right">9.71</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 9%; text-align: right">99,570</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 9%; text-align: right">45,003</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; "> <td style="padding-left: 0.125in">Granted</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(31,550</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 0.125in">Exercised/issued</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; "> <td style="padding-bottom: 1.5pt; padding-left: 0.125in">Cancelled/forfeited</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">14,950</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-bottom: 4pt">At March 31, 2021</td><td style="padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; text-align: left"> </td><td style="border-bottom: Black 4pt double; text-align: right">279,505</td><td style="padding-bottom: 4pt; text-align: left"> </td><td style="padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; text-align: left"> </td><td style="border-bottom: Black 4pt double; text-align: right">20,100</td><td style="padding-bottom: 4pt; text-align: left"> </td><td style="padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; text-align: left">$</td><td style="border-bottom: Black 4pt double; text-align: right">9.71</td><td style="padding-bottom: 4pt; text-align: left"> </td><td style="padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; text-align: left"> </td><td style="border-bottom: Black 4pt double; text-align: right">99,570</td><td style="padding-bottom: 4pt; text-align: left"> </td><td style="padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; text-align: left"> </td><td style="border-bottom: Black 4pt double; text-align: right">45,003</td><td style="padding-bottom: 4pt; text-align: left"> </td></tr> </table> The Company’s aggregate intrinsic value is calculated as the difference between the exercise price of the underlying stock options and the fair value of the Company’s common stock. Based on the fair value of the common stock at March 31, 2021, there was $74,775 of intrinsic value arising from 18,250 stock options exercisable or outstanding. The Company uses the Black-Scholes option pricing model to value stock options. The Company uses historical stock price average to determine its volatility assumptions. The assumed risk-free rates were based on U.S. Treasury rates in effect at the time of grant with a term consistent with the expected option lives. The expected term is based upon the vesting term of the Company’s options. The forfeiture rate of 36.13% is based on the history of forfeited options. The expense is allocated using the straight-line method. For the three months ended March 31, 2021 and 2020, the Company recorded $0 and $3,000, respectively, of stock option compensation expense. As of March 31, 2021, there was no unrecognized compensation cost related to non-vested stock option awards granted under the Company’s stock-based plans.  As of December 31, 2020 and March 31, 2021, the Company did not have any non-vested options. The Company did not record any RSU expense for the three months ended March 31, 2021 and 2020. A summary of the Company’s RSUs during the three months ended March 31, 2021, is presented below: <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 10pt Calibri, Helvetica, Sans-Serif"> <tr style="vertical-align: bottom"> <td style="text-align: center"> </td><td style="font-family: Times New Roman, Times, Serif; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-family: Times New Roman, Times, Serif; font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">RSUs outstanding</td><td style="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif; font-weight: bold"> </td><td style="font-family: Times New Roman, Times, Serif; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-family: Times New Roman, Times, Serif; font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Weighted average price at time of grant</td><td style="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif; font-weight: bold"> </td><td style="font-family: Times New Roman, Times, Serif; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-family: Times New Roman, Times, Serif; font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Aggregate intrinsic value</td><td style="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 64%; font-family: Times New Roman, Times, Serif">Non-vested RSUs as of January 1, 2021</td><td style="width: 1%; font-family: Times New Roman, Times, Serif"> </td> <td style="width: 1%; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="width: 9%; font-family: Times New Roman, Times, Serif; text-align: right">45,003</td><td style="width: 1%; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="width: 1%; font-family: Times New Roman, Times, Serif"> </td> <td style="width: 1%; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="width: 9%; font-family: Times New Roman, Times, Serif; text-align: right">6.20</td><td style="width: 1%; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 9%; text-align: right"> </td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; "> <td style="font-family: Times New Roman, Times, Serif">Granted</td><td style="font-family: Times New Roman, Times, Serif"> </td> <td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; text-align: right">—</td><td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif"> </td> <td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; text-align: right">—</td><td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-family: Times New Roman, Times, Serif">Vested</td><td style="font-family: Times New Roman, Times, Serif"> </td> <td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; text-align: right">—</td><td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif"> </td> <td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; text-align: right">—</td><td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right"> </td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; "> <td style="font-family: Times New Roman, Times, Serif; padding-bottom: 1.5pt">Cancelled</td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: right">—</td><td style="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: right">—</td><td style="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right"> </td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-family: Times New Roman, Times, Serif; padding-bottom: 4pt">Non-vested RSUs at March 31, 2021</td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: right">45,003</td><td style="padding-bottom: 4pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: right">6.20</td><td style="padding-bottom: 4pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: right">278,961</td><td style="padding-bottom: 4pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td></tr> </table> Every year at the Company’s annual meeting each member of the Board of Directors is issued an RSU which vests on the day of the following year’s annual meeting. When such RSU vests, they are automatically converted into $10,000 of the Company’s common stock based upon the closing price the day before the following year’s annual meeting. During the three months ended March 31, 2021, the Company awarded 31,550 shares to an officer of the Company with a fair value of approximately $341,000. The Company’s board of directors are compensated partially in cash and partially in restricted stock. For the three months ended March 31, 2021 and 2020, no restricted stock shares were issued to our directors. As of March 31, 2021 and December 31, 2020, there were no outstanding non-vested restricted stock shares.

440769

279505

The 2016 Plan will automatically terminate on March 17, 2026, unless the Company terminates it sooner.

74775

18250

0.3613

3000

10000

31550

341000

<table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 10pt Times New Roman, Times, Serif"> <tr style="vertical-align: bottom"> <td style="text-align: center"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Shares available for grant</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Number of options outstanding</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Weighted- average option exercise price</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Number of restricted stock and board shares issued</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td><td style="font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Number of RSUs outstanding</td><td style="padding-bottom: 1.5pt; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 40%">At January 1, 2021</td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 9%; text-align: right">296,105</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 9%; text-align: right">20,100</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left">$</td><td style="width: 9%; text-align: right">9.71</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 9%; text-align: right">99,570</td><td style="width: 1%; text-align: left"> </td><td style="width: 1%"> </td> <td style="width: 1%; text-align: left"> </td><td style="width: 9%; text-align: right">45,003</td><td style="width: 1%; text-align: left"> </td></tr> <tr style="vertical-align: bottom; "> <td style="padding-left: 0.125in">Granted</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">(31,550</td><td style="text-align: left">)</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-left: 0.125in">Exercised/issued</td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td><td> </td> <td style="text-align: left"> </td><td style="text-align: right">—</td><td style="text-align: left"> </td></tr> <tr style="vertical-align: bottom; "> <td style="padding-bottom: 1.5pt; padding-left: 0.125in">Cancelled/forfeited</td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">14,950</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td><td style="padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; text-align: right">—</td><td style="padding-bottom: 1.5pt; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="padding-bottom: 4pt">At March 31, 2021</td><td style="padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; text-align: left"> </td><td style="border-bottom: Black 4pt double; text-align: right">279,505</td><td style="padding-bottom: 4pt; text-align: left"> </td><td style="padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; text-align: left"> </td><td style="border-bottom: Black 4pt double; text-align: right">20,100</td><td style="padding-bottom: 4pt; text-align: left"> </td><td style="padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; text-align: left">$</td><td style="border-bottom: Black 4pt double; text-align: right">9.71</td><td style="padding-bottom: 4pt; text-align: left"> </td><td style="padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; text-align: left"> </td><td style="border-bottom: Black 4pt double; text-align: right">99,570</td><td style="padding-bottom: 4pt; text-align: left"> </td><td style="padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; text-align: left"> </td><td style="border-bottom: Black 4pt double; text-align: right">45,003</td><td style="padding-bottom: 4pt; text-align: left"> </td></tr> </table>

296105

20100

9.71

99570

45003

31550

14950

279505

20100

9.71

99570

45003

6.20

45003

6.20

278961000

7. COMMITMENTS AND CONTINGENCIES Litigation From time to time, the Company experiences routine litigation in the normal course of its business. The management of the Company does not believe any pending litigation, will have a material adverse effect on the financial condition, results of operations or cash flows of the Company. COVID-19 Pandemic In March 2020, the World Health Organization declared the outbreak of a novel coronavirus (COVID-19) as a pandemic. The full impact of the COVID-19 outbreak is unknown and cannot be reasonably estimated. The magnitude and duration of the COVID-19 outbreak, as well as other factors, could result in a material impact to the Company’s financial statements in future reporting periods.

8. INCOME TAXES In 2017, the U.S. enacted the Tax Cuts and Jobs Act (the “Act”) which, among other provisions, reduced the U.S. corporate tax rate from 35% to 21% effective January 1, 2018. The SEC issued guidance, Staff Accounting Bulletin 118, on accounting for the tax effects of the Act. The guidance allows the Company to record provisional amounts for those impacts, with the requirement that the accounting be completed in a period not to exceed one year from the date of enactment. The Company has completed its accounting for the tax effects of enactment of the Act. The deemed inclusion from the repatriation tax increased from $3,900,000 at the time of provision to $5,000,000 at the time the calculation was finalized for the tax return. The increase of the inclusion related primarily to the refinement of Malaysia earnings and profits. As the Company is in a full valuation allowance position, an equal benefit adjustment was recorded for the impact of the increase of the deemed repatriation tax. The Company is subject to taxation in the U.S. and in a U.S. state jurisdiction. On a quarterly basis, the Company assesses the recoverability of deferred tax assets and the need for a valuation allowance. Such evaluations involve the application of significant judgment, and multiple factors, both positive and negative, are considered. For the period ended March 31, 2021, a valuation allowance has been included in the 2021 forecasted effective tax rate. The Company is in a cumulative loss position for the past three years, which is considered significant negative evidence that is difficult to overcome on a “more likely than not” standard through objectively verifiable data. Under the accounting standards, objective verifiable evidence is given greater weight than subjective evidence such as the Company’s projections for future growth. Based on an evaluation in accordance with the accounting standards, as of December 31, 2015, a valuation allowance has been recorded against the net U.S. deferred tax assets in order to measure only the portion of the deferred tax assets that are more likely than not to be realized based on the weight of all available evidence. At March 31, 2021, the Company continues to be in a three-year cumulative loss position, therefore, until an appropriate level of profitability is attained, the Company expects to maintain a full valuation allowance on its U.S. net deferred tax assets. Any U.S. tax benefits or tax expense recorded on the Company’s consolidated statement of operations will be offset with a corresponding adjustment from the use of the net operating loss (“NOL”) carryforward asset which currently has a full valuation allowance. In the event that the Company changes its determination as to the amount of deferred tax assets that can be realized, the Company will adjust its valuation allowance with a corresponding impact to the provision for income taxes in the period in which such determination is made.

0.35

0.21

3900000000 5000000000

9. SEGMENT INFORMATION The Company has determined that it operates in two segments, the sapphire and pharmacy business. Revenue is attributed by geographic region based on ship-to location of the Company’s customers. The following table summarizes revenue by geographic region: <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 10pt Calibri, Helvetica, Sans-Serif"> <tr style="vertical-align: bottom"> <td> </td><td style="font-family: Times New Roman, Times, Serif; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="6" style="font-family: Times New Roman, Times, Serif; font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Three months ended March 31,</td><td style="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-family: Times New Roman, Times, Serif; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-family: Times New Roman, Times, Serif; font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">2021</td><td style="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif; font-weight: bold"> </td><td style="font-family: Times New Roman, Times, Serif; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-family: Times New Roman, Times, Serif; font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">2020</td><td style="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-family: Times New Roman, Times, Serif; font-weight: bold"> </td> <td colspan="6" style="font-family: Times New Roman, Times, Serif; font-weight: bold; text-align: center">(in thousands)</td><td style="font-family: Times New Roman, Times, Serif; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td> </td> <td colspan="2" style="text-align: center"> </td><td> </td><td> </td> <td colspan="2" style="text-align: center"> </td><td> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 76%; font-family: Times New Roman, Times, Serif; text-align: left; text-indent: -12pt; padding-left: 12pt">North America</td><td style="width: 1%; font-family: Times New Roman, Times, Serif"> </td> <td style="width: 1%; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="width: 9%; font-family: Times New Roman, Times, Serif; text-align: right">588</td><td style="width: 1%; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="width: 1%; font-family: Times New Roman, Times, Serif"> </td> <td style="width: 1%; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="width: 9%; font-family: Times New Roman, Times, Serif; text-align: right">1,040</td><td style="width: 1%; font-family: Times New Roman, Times, Serif; text-align: left"> </td></tr> <tr style="vertical-align: bottom; "> <td style="font-family: Times New Roman, Times, Serif; text-indent: -12pt; padding-left: 12pt">Asia</td><td style="font-family: Times New Roman, Times, Serif"> </td> <td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; text-align: right">139</td><td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif"> </td> <td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; text-align: right">113</td><td style="font-family: Times New Roman, Times, Serif; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-family: Times New Roman, Times, Serif; padding-bottom: 1.5pt; text-indent: -12pt; padding-left: 12pt">Other</td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: right">2</td><td style="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: right">7</td><td style="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td></tr> <tr style="vertical-align: bottom; "> <td style="font-family: Times New Roman, Times, Serif; text-align: left; padding-bottom: 4pt; padding-left: 10pt">Total revenue</td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: right">729</td><td style="padding-bottom: 4pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: right">1,160</td><td style="padding-bottom: 4pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td></tr> </table> The following table summarizes sales by product type: <table cellpadding="0" cellspacing="0" style="border-collapse: collapse; width: 100%; font: 10pt Calibri, Helvetica, Sans-Serif"> <tr style="vertical-align: bottom"> <td> </td><td style="font-family: Times New Roman, Times, Serif; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="6" style="font-family: Times New Roman, Times, Serif; font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">Three months ended March 31,</td><td style="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-family: Times New Roman, Times, Serif; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-family: Times New Roman, Times, Serif; font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">2021</td><td style="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif; font-weight: bold"> </td><td style="font-family: Times New Roman, Times, Serif; font-weight: bold; padding-bottom: 1.5pt"> </td> <td colspan="2" style="font-family: Times New Roman, Times, Serif; font-weight: bold; text-align: center; border-bottom: Black 1.5pt solid">2020</td><td style="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td style="font-family: Times New Roman, Times, Serif; font-weight: bold"> </td> <td colspan="6" style="font-family: Times New Roman, Times, Serif; font-weight: bold; text-align: center">(in thousands)</td><td style="font-family: Times New Roman, Times, Serif; font-weight: bold"> </td></tr> <tr style="vertical-align: bottom"> <td> </td><td> </td> <td colspan="6"> </td><td> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="width: 76%; font-family: Times New Roman, Times, Serif">Optical</td><td style="width: 1%; font-family: Times New Roman, Times, Serif"> </td> <td style="width: 1%; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="width: 9%; font-family: Times New Roman, Times, Serif; text-align: right">495</td><td style="width: 1%; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="width: 1%; font-family: Times New Roman, Times, Serif"> </td> <td style="width: 1%; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="width: 9%; font-family: Times New Roman, Times, Serif; text-align: right">1,027</td><td style="width: 1%; font-family: Times New Roman, Times, Serif; text-align: left"> </td></tr> <tr style="vertical-align: bottom; "> <td style="font-family: Times New Roman, Times, Serif; text-align: left; padding-bottom: 1.5pt">Rubicon DTP</td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: right">234</td><td style="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 1.5pt"> </td> <td style="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="border-bottom: Black 1.5pt solid; font-family: Times New Roman, Times, Serif; text-align: right">133</td><td style="padding-bottom: 1.5pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td></tr> <tr style="vertical-align: bottom; background-color: rgb(204,238,255)"> <td style="font-family: Times New Roman, Times, Serif; text-align: left; padding-bottom: 4pt">Total revenue</td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: right">729</td><td style="padding-bottom: 4pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td><td style="font-family: Times New Roman, Times, Serif; padding-bottom: 4pt"> </td> <td style="border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: left">$</td><td style="border-bottom: Black 4pt double; font-family: Times New Roman, Times, Serif; text-align: right">1,160</td><td style="padding-bottom: 4pt; font-family: Times New Roman, Times, Serif; text-align: left"> </td></tr> </table> As of March 31, 2021 and December 31, 2020, the Company held all of its assets in the United States. Direct Dose Rx accounted for a loss of approximately $95,000 and $119,000 for the three months ended March 31, 2021 and 2020, respectively. Direct Dose Rx assets are currently not material to the consolidated financial information of the Company and therefore there is limited disclosure relating specifically to them.

95000

119000

588000

1040000

139000

113000

2000

7000

495000

1027000

234000

133000

10. SUBSEQUENT EVENTS

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Document And Entity Information - shares	3 Months Ended
Document And Entity Information - shares	Mar. 31, 2021	Apr. 30, 2021
Document Information Line Items
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Document Type	10-Q
Current Fiscal Year End Date	--12-31
Entity Common Stock, Shares Outstanding		2,438,855
Amendment Flag	false
Entity Central Index Key	0001410172
Entity Current Reporting Status	Yes
Entity Filer Category	Non-accelerated Filer
Document Period End Date	Mar. 31, 2021
Document Fiscal Year Focus	2021
Document Fiscal Period Focus	Q1
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity File Number	001-33834
Entity Incorporation, State or Country Code	DE
Entity Interactive Data Current	Yes

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Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Assets
Cash and cash equivalents	$ 10,571	$ 11,130
Short-term investments	14,749	14,748
Accounts receivable, net	389	386
Inventories	1,046	1,073
Other inventory supplies	138	140
Prepaid expenses and other current assets	253	284
Assets held for sale	529	529
Total current assets	27,675	28,290
Inventories, non-current	468	468
Property and equipment, net	2,441	2,482
Total assets	30,584	31,240
Liabilities and stockholders’ equity
Accounts payable	309	497
Accrued payroll	153	211
Accrued and other current liabilities	385	201
Corporate income and franchise taxes	329	307
Accrued real estate taxes	90	71
Advance payments	11	18
Total current liabilities	1,277	1,305
Total liabilities	1,277	1,305
Commitments and contingencies (Note 7)
Stockholders’ equity
Preferred stock, $.001 par value, 1,000,000 undesignated shares authorized, no shares issued or outstanding
Common stock, $.001 par value, 8,200,000 shares authorized; 2,987,883 and 2,971,283 shares issued; 2,438,855 and 2,422,255 shares outstanding, respectively	29	29
Additional paid-in capital	376,635	376,456
Treasury stock, at cost, 549,028 and 549,028 shares	(15,147)	(15,147)
Accumulated other comprehensive income
Accumulated deficit	(332,210)	(331,403)
Total stockholders’ equity	29,307	29,935
Total liabilities and stockholders’ equity	$ 30,584	$ 31,240

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Condensed Consolidated Balance Sheets (Parentheticals) - $ / shares	Mar. 31, 2021	Dec. 31, 2020
Statement of Financial Position [Abstract]
Preferred stock par value (in Dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized	1,000,000	1,000,000
Preferred stock, shares issued
Preferred stock, shares outstanding
Common stock, par value (in Dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized	8,200,000	8,200,000
Common stock, shares issued	2,987,883	2,971,283
Common stock, shares outstanding	2,438,855	2,422,255
Treasury stock, shares	549,028	549,028

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Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Income Statement [Abstract]
Revenue	$ 729	$ 1,160
Cost of goods sold	583	812
Gross profit	146	348
Operating expenses:
General and administrative	875	584
Sales and marketing	79	87
Loss from operations	(808)	(323)
Other income:
Interest income	1	74
Realized gain (loss) on investments		(1,786)
Realized gain (loss) on foreign currency translation		(14)
Unrealized gain (loss) on equity investments		(156)
Total other income (loss)	1	(1,882)
Loss before income taxes	(807)	(2,205)
Income tax expense		(4)
Net loss	$ (807)	$ (2,209)
Net loss per common share
Basic (in Dollars per share)	$ (0.33)	$ (0.84)
Diluted (in Dollars per share)	$ (0.33)	$ (0.84)
Weighted average common shares outstanding used in computing net loss per common share
Basic (in Shares)	2,430,555	2,629,467
Diluted (in Shares)	2,430,555	2,629,467

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Condensed Consolidated Statements of Comprehensive Loss (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Statement of Comprehensive Income [Abstract]
Net loss	$ (807)	$ (2,209)
Other comprehensive loss:
Unrealized gain on investments, net of taxes		11
Other comprehensive gain		11
Comprehensive income/(loss)	$ (807)	$ (2,198)

- Definition

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.

+ References + Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

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+ Details

XML 15 R6.htm IDEA: XBRL DOCUMENT

Condensed Consolidated Statements of Stockholders’ Equity - USD ($) $ in Thousands	Common stock	Treasury stock	Additional paid-in capital	Accum other comp loss	Accum deficit	Total
Balance at Dec. 31, 2019	$ 29	$ (12,749)	$ 376,306	$ (1)	$ (330,340)	$ 33,245
Balance (in Shares) at Dec. 31, 2019	2,955,253	(253,082)
Stock-based compensation			11			11
Purchase of treasury stock, at cost		$ (1,205)				(1,205)
Purchase of treasury stock, at cost (in Shares)		(146,674)
Unrealized gain on investments, net of tax				11		11
Net loss					(2,209)	(2,209)
Balance at Mar. 31, 2020	$ 29	$ (13,954)	376,317	10	(332,549)	29,853
Balance (in Shares) at Mar. 31, 2020	2,955,253	(399,756)
Balance at Dec. 31, 2020	$ 29	$ (15,147)	376,456		(331,403)	29,935
Balance (in Shares) at Dec. 31, 2020	2,971,283	(549,028)
Stock-based compensation			341			341
Common stock issued, net of shares withheld for employee taxes			(162)			(162)
Common stock issued, net of shares withheld for employee taxes (in Shares)	16,600
Net loss					(807)	(807)
Balance at Mar. 31, 2021	$ 29	$ (15,147)	$ 376,635		$ (332,210)	$ 29,307
Balance (in Shares) at Mar. 31, 2021	2,987,883	(549,028)

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

+ Details

- Definition

Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

+ References + Details

XML 16 R7.htm IDEA: XBRL DOCUMENT

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash flows from operating activities
Net loss	$ (807)	$ (2,209)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities
Depreciation and amortization	42	42
Unrealized (gain)/loss on equity investments		156
Realized (gain)/loss on equity investments		1,786
Stock-based compensation	341	11
Changes in operating assets and liabilities:
Accounts receivable	(4)	314
Inventories	27	316
Other inventory supplies	1	(1)
Prepaid expenses and other assets	31	29
Accounts payable	(187)	(291)
Accrued payroll	(58)	28
Accrued real estate taxes	19	19
Corporate income and franchise taxes	22	16
Advanced payments	(8)	(16)
Accrued and other current liabilities	184	(62)
Net cash provided by (cash used) by operating activities	(397)	138
Cash flows from investing activities
Purchases of investments	(1)	(1,720)
Proceeds from sale of investments	1	5,180
Net cash provided by investing activities		3,460
Cash flows from financing activities
Taxes paid related to net share settlement of equity awards	(162)
Purchases of treasury stock		(1,205)
Net cash used in financing activities	(162)	(1,205)
Net effect of currency translation
Net increase (decrease) in cash, cash equivalents and restricted cash	(559)	2,393
Cash, cash equivalents and restricted cash, beginning of period	11,130	8,880
Cash, cash equivalents and restricted cash, end of period	$ 10,571	$ 11,273

XML 17 R8.htm IDEA: XBRL DOCUMENT

Basis of Presentation

3 Months Ended

Mar. 31, 2021

Accounting Policies [Abstract]

BASIS OF PRESENTATION

1. BASIS OF PRESENTATION

Interim financial data

XML 18 R9.htm IDEA: XBRL DOCUMENT

Summary of Significant Accounting Policies

3 Months Ended

Mar. 31, 2021

Accounting Policies [Abstract]

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

2. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Principles of consolidation

Investments

Accounts receivable

Purchases of Equity Securities by the Issuer and Affiliated Purchasers

In November 2018, the Company’s Board of Directors authorized a program to repurchase up to $3,000,000 of its common stock. In July 2020, the Company used all of the original authorized $3,000,000.

No shares of the Company’s common stock were repurchased during the three months ended March 31, 2021. The dollar value of shares that may yet to be purchased under the program is $3,000,000.

Inventories

Inventories consisted of the following:

	March 31, 2021		December 31, 2020
	(in thousands)
Raw materials	$	468	$	468
Work-in-process		452		614
Finished goods		594		459
	$	1,514	$	1,541

Property and equipment

Property and equipment consisted of the following:

	March 31, 2021			December 31, 2020
	(in thousands)
Machinery, equipment and tooling	$	3,343		$	3,343
Buildings		1,711			1,711
Information systems		835			835
Land and land improvements		594			594
Furniture and fixtures		8			8
Total cost		6,491			6,491
Accumulated depreciation and amortization		(4,050	)		(4,009	)
Property and equipment, net	$	2,441		$	2,482

Assets held for sale and long-lived assets

The Company did not record any sales of its equipment or consumable assets for the three months ended March 31, 2021.

Revenue recognition

Net income (loss) per common share

New accounting pronouncements adopted

XML 19 R10.htm IDEA: XBRL DOCUMENT

Investments

3 Months Ended

Mar. 31, 2021

Investments, Debt and Equity Securities [Abstract]

INVESTMENTS

3. INVESTMENTS

The following table presents the amortized cost and gross unrealized losses on all securities at March 31, 2021:

	Amortized cost		Gross unrealized gains		Gross unrealized losses		Fair value
	(in thousands)
Short-term investments:
U.S. Treasury securities	$	14,749	$	—	$	—	$	14,749
Marketable securities		—		—		—	$	—
Total short-term investments	$	14,749	$	—	$	—	$	14,749

The following table presents the amortized cost and gross unrealized losses on all securities at December 31, 2020:

	Amortized cost		Gross unrealized gains		Gross unrealized losses		Fair value
	(in thousands)
Short-term investments:
U.S. Treasury securities	$	14,748	$	—	$	—	$	14,748
Marketable securities		—		—		—		—
Total short-term investments	$	14,748	$	—	$	—	$	14,748

	●	Level 1—Quoted prices in active markets for identical assets or liabilities.

	●	Level 2—Inputs other than Level 1 that are observable, either directly or indirectly, such as quoted prices for similar assets or liabilities; quoted prices in markets that are not active; or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities.

●

Level 3—Unobservable inputs that are supported by little or no market activity and that are significant to the fair value of the assets or liabilities.

The following table summarizes the Company’s financial assets measured at fair value on a recurring basis as of March 31, 2021:

	Level 1		Level 2		Level 3		Total
	(in thousands)

Cash equivalents:
Money market funds	$	3,137	$	—	$	—	$	3,137
Investments:
Available-for-sale securities — current:
U.S. Treasury securities		—		14,749		—		14,749
Total	$	3,137	$	14,749	$	—	$	17,886

The following table summarizes the Company’s financial assets measured at fair value on a recurring basis as of December 31, 2020:

	Level 1		Level 2		Level 3		Total
	(in thousands)

Cash equivalents:
Money market funds	$	3,136	$	—	$	—	$	3,136
Investments:
Available-for-sale securities — current:
U.S. Treasury securities		—		14,748		—		14,748
Total	$	3,136	$	14,748	$	—	$	17,884

There are no terms or conditions restricting the Company from redeeming any of its investments.

XML 20 R11.htm IDEA: XBRL DOCUMENT

Significant Customers

3 Months Ended

Mar. 31, 2021

Significant Customers Disclosure [Abstract]

SIGNIFICANT CUSTOMERS

4. SIGNIFICANT CUSTOMERS

Customers individually representing more than 10% of trade receivables accounted for approximately 62% and 44% of accounts receivable as of March 31, 2021 and December 31, 2020, respectively.

XML 21 R12.htm IDEA: XBRL DOCUMENT

Stockholders' Equity

3 Months Ended

Mar. 31, 2021

Stockholders' Equity Note [Abstract]

STOCKHOLDERS' EQUITY

5. STOCKHOLDERS’ EQUITY

Common shares reserved

XML 22 R13.htm IDEA: XBRL DOCUMENT

Stock Incentive Plans

3 Months Ended

Mar. 31, 2021

Share-based Payment Arrangement [Abstract]

STOCK INCENTIVE PLANS

6. STOCK INCENTIVE PLANS

The following table summarizes the activity of the stock incentive and equity plans as of March 31, 2021, and changes during the three months then ended:

	Shares available for grant			Number of options outstanding		Weighted- average option exercise price		Number of restricted stock and board shares issued		Number of RSUs outstanding
At January 1, 2021		296,105			20,100	$	9.71		99,570		45,003
Granted		(31,550	)		—		—		—		—
Exercised/issued		—			—		—		—		—
Cancelled/forfeited		14,950			—		—		—		—
At March 31, 2021		279,505			20,100	$	9.71		99,570		45,003

As of December 31, 2020 and March 31, 2021, the Company did not have any non-vested options.

The Company did not record any RSU expense for the three months ended March 31, 2021 and 2020.

A summary of the Company’s RSUs during the three months ended March 31, 2021, is presented below:

	RSUs outstanding		Weighted average price at time of grant		Aggregate intrinsic value
Non-vested RSUs as of January 1, 2021		45,003	$	6.20
Granted		—		—
Vested		—		—
Cancelled		—		—
Non-vested RSUs at March 31, 2021		45,003	$	6.20	$	278,961

During the three months ended March 31, 2021, the Company awarded 31,550 shares to an officer of the Company with a fair value of approximately $341,000.

XML 23 R14.htm IDEA: XBRL DOCUMENT

Commitments And Contingencies

3 Months Ended

Mar. 31, 2021

Commitments and Contingencies Disclosure [Abstract]

COMMITMENTS AND CONTINGENCIES

7. COMMITMENTS AND CONTINGENCIES

Litigation

COVID-19 Pandemic

XML 24 R15.htm IDEA: XBRL DOCUMENT

Income Taxes

3 Months Ended

Mar. 31, 2021

Income Tax Disclosure [Abstract]

INCOME TAXES

8. INCOME TAXES

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References + Details

XML 25 R16.htm IDEA: XBRL DOCUMENT

Segment Information

3 Months Ended

Mar. 31, 2021

Segment Reporting [Abstract]

SEGMENT INFORMATION

9. SEGMENT INFORMATION

The Company has determined that it operates in two segments, the sapphire and pharmacy business.

Revenue is attributed by geographic region based on ship-to location of the Company’s customers. The following table summarizes revenue by geographic region:

	Three months ended March 31,
	2021		2020
	(in thousands)

North America	$	588	$	1,040
Asia		139		113
Other		2		7
Total revenue	$	729	$	1,160

The following table summarizes sales by product type:

	Three months ended March 31,
	2021		2020
	(in thousands)

Optical	$	495	$	1,027
Rubicon DTP		234		133
Total revenue	$	729	$	1,160

As of March 31, 2021 and December 31, 2020, the Company held all of its assets in the United States.

Direct Dose Rx accounted for a loss of approximately $95,000 and $119,000 for the three months ended March 31, 2021 and 2020, respectively.

Direct Dose Rx assets are currently not material to the consolidated financial information of the Company and therefore there is limited disclosure relating specifically to them.

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8924-108599

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
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-Name Accounting Standards Codification
-Topic 280
-URI http://asc.fasb.org/topic&trid=2134510

+ Details

XML 26 R17.htm IDEA: XBRL DOCUMENT

Subsequent Events	3 Months Ended
Subsequent Events	Mar. 31, 2021
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	10. SUBSEQUENT EVENTS

XML 27 R18.htm IDEA: XBRL DOCUMENT

Accounting Policies, by Policy (Policies)

3 Months Ended

Mar. 31, 2021

Accounting Policies [Abstract]

Principles of consolidation

Principles of consolidation

Investments

Investments

Accounts receivable

Accounts receivable

Purchases of Equity Securities by the Issuer and Affiliated Purchasers

Purchases of Equity Securities by the Issuer and Affiliated Purchasers

In November 2018, the Company’s Board of Directors authorized a program to repurchase up to $3,000,000 of its common stock. In July 2020, the Company used all of the original authorized $3,000,000.

No shares of the Company’s common stock were repurchased during the three months ended March 31, 2021. The dollar value of shares that may yet to be purchased under the program is $3,000,000.

Inventories

Inventories

Inventories consisted of the following:

	March 31, 2021		December 31, 2020
	(in thousands)
Raw materials	$	468	$	468
Work-in-process		452		614
Finished goods		594		459
	$	1,514	$	1,541

Property and equipment

Property and equipment

Property and equipment consisted of the following:

	March 31, 2021			December 31, 2020
	(in thousands)
Machinery, equipment and tooling	$	3,343		$	3,343
Buildings		1,711			1,711
Information systems		835			835
Land and land improvements		594			594
Furniture and fixtures		8			8
Total cost		6,491			6,491
Accumulated depreciation and amortization		(4,050	)		(4,009	)
Property and equipment, net	$	2,441		$	2,482

Assets held for sale and long-lived assets

Assets held for sale and long-lived assets

The Company did not record any sales of its equipment or consumable assets for the three months ended March 31, 2021.

Revenue recognition

Revenue recognition

Net income (loss) per common share

Net income (loss) per common share

New accounting pronouncements adopted

New accounting pronouncements adopted

XML 28 R19.htm IDEA: XBRL DOCUMENT

Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2021

Accounting Policies [Abstract]

Schedule of inventories

	March 31, 2021		December 31, 2020
	(in thousands)
Raw materials	$	468	$	468
Work-in-process		452		614
Finished goods		594		459
	$	1,514	$	1,541

Schedule of property and equipment

	March 31, 2021			December 31, 2020
	(in thousands)
Machinery, equipment and tooling	$	3,343		$	3,343
Buildings		1,711			1,711
Information systems		835			835
Land and land improvements		594			594
Furniture and fixtures		8			8
Total cost		6,491			6,491
Accumulated depreciation and amortization		(4,050	)		(4,009	)
Property and equipment, net	$	2,441		$	2,482

XML 29 R20.htm IDEA: XBRL DOCUMENT

Investments (Tables)

3 Months Ended

Mar. 31, 2021

Investments, Debt and Equity Securities [Abstract]

Summary of amortized cost and gross unrealized losses on all securities

	Amortized cost		Gross unrealized gains		Gross unrealized losses		Fair value
	(in thousands)
Short-term investments:
U.S. Treasury securities	$	14,749	$	—	$	—	$	14,749
Marketable securities		—		—		—	$	—
Total short-term investments	$	14,749	$	—	$	—	$	14,749

	Amortized cost		Gross unrealized gains		Gross unrealized losses		Fair value
	(in thousands)
Short-term investments:
U.S. Treasury securities	$	14,748	$	—	$	—	$	14,748
Marketable securities		—		—		—		—
Total short-term investments	$	14,748	$	—	$	—	$	14,748

Summary of financial assets measured at fair value on a recurring basis

	Level 1		Level 2		Level 3		Total
	(in thousands)

Cash equivalents:
Money market funds	$	3,137	$	—	$	—	$	3,137
Investments:
Available-for-sale securities — current:
U.S. Treasury securities		—		14,749		—		14,749
Total	$	3,137	$	14,749	$	—	$	17,886

	Level 1		Level 2		Level 3		Total
	(in thousands)

Cash equivalents:
Money market funds	$	3,136	$	—	$	—	$	3,136
Investments:
Available-for-sale securities — current:
U.S. Treasury securities		—		14,748		—		14,748
Total	$	3,136	$	14,748	$	—	$	17,884

XML 30 R21.htm IDEA: XBRL DOCUMENT

Stock Incentive Plans (Tables)

3 Months Ended

Mar. 31, 2021

Share-based Payment Arrangement [Abstract]

Schedule of award vesting terms for the RSUs granted

	Shares available for grant			Number of options outstanding		Weighted- average option exercise price		Number of restricted stock and board shares issued		Number of RSUs outstanding
At January 1, 2021		296,105			20,100	$	9.71		99,570		45,003
Granted		(31,550	)		—		—		—		—
Exercised/issued		—			—		—		—		—
Cancelled/forfeited		14,950			—		—		—		—
At March 31, 2021		279,505			20,100	$	9.71		99,570		45,003

Schedule of award vesting terms for the RSUs granted

	RSUs outstanding		Weighted average price at time of grant		Aggregate intrinsic value
Non-vested RSUs as of January 1, 2021		45,003	$	6.20
Granted		—		—
Vested		—		—
Cancelled		—		—
Non-vested RSUs at March 31, 2021		45,003	$	6.20	$	278,961

XML 31 R22.htm IDEA: XBRL DOCUMENT

Segment Information (Tables)

3 Months Ended

Mar. 31, 2021

Segment Reporting [Abstract]

Schedule of geographic region

	Three months ended March 31,
	2021		2020
	(in thousands)

North America	$	588	$	1,040
Asia		139		113
Other		2		7
Total revenue	$	729	$	1,160

Schedule of sales by product type

	Three months ended March 31,
	2021		2020
	(in thousands)

Optical	$	495	$	1,027
Rubicon DTP		234		133
Total revenue	$	729	$	1,160

XML 32 R23.htm IDEA: XBRL DOCUMENT

Summary of Significant Accounting Policies (Details) - USD ($)	1 Months Ended	3 Months Ended
	Jul. 31, 2020	Mar. 31, 2021	Dec. 31, 2020	Dec. 14, 2020	Mar. 31, 2020	Nov. 30, 2018
Summary of Significant Accounting Policies (Details) [Line Items]
Repurchase of common stock		$ 3,000,000
Original authorized amount	$ 3,000,000
Warrant term		90 days
Warranty reserve		$ 2,000	$ 2,000
Outstanding options exercisable shares (in Shares)		18,250			19,500
Board of Directors [Member]
Summary of Significant Accounting Policies (Details) [Line Items]
Repurchase of common stock				$ 3,000,000		$ 3,000,000

XML 33 R24.htm IDEA: XBRL DOCUMENT

Summary of Significant Accounting Policies (Details) - Schedule of inventories - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Schedule of inventories [Abstract]
Raw materials	$ 468	$ 468
Work-in-process	452	614
Finished goods	594	459
Inventories	$ 1,514	$ 1,541

XML 34 R25.htm IDEA: XBRL DOCUMENT

Summary of Significant Accounting Policies (Details) - Schedule of property and equipment - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Total cost	$ 6,491	$ 6,491
Accumulated depreciation and amortization	(4,050)	(4,009)
Property and equipment, net	2,441	2,482
Machinery, equipment and tooling [Member]
Property, Plant and Equipment [Line Items]
Total cost	3,343	3,343
Buildings [Member]
Property, Plant and Equipment [Line Items]
Total cost	1,711	1,711
Information systems [Member]
Property, Plant and Equipment [Line Items]
Total cost	835	835
Land and land improvements [Member]
Property, Plant and Equipment [Line Items]
Total cost	594	594
Furniture and fixtures [Member]
Property, Plant and Equipment [Line Items]
Total cost	$ 8	$ 8

XML 35 R26.htm IDEA: XBRL DOCUMENT

Investments (Details) - USD ($)	Mar. 31, 2021	Dec. 31, 2020
Investments, Debt and Equity Securities [Abstract]
Time deposits included in cash and cash equivalents	$ 7,434,000	$ 7,994,000

XML 36 R27.htm IDEA: XBRL DOCUMENT

Investments (Details) - Summary of amortized cost and gross unrealized losses on all securities - Short-term Investments [Member] - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Investments (Details) - Summary of amortized cost and gross unrealized losses on all securities [Line Items]
Amortized cost	$ 14,749	$ 14,748
Gross unrealized gains
Gross unrealized losses
Fair value	14,749	14,748
U.S. Treasury securities [Member]
Investments (Details) - Summary of amortized cost and gross unrealized losses on all securities [Line Items]
Amortized cost	14,749	14,748
Gross unrealized gains
Gross unrealized losses
Fair value	14,749	14,748
Marketable securities [Member]
Investments (Details) - Summary of amortized cost and gross unrealized losses on all securities [Line Items]
Amortized cost
Gross unrealized gains
Gross unrealized losses
Fair value

XML 37 R28.htm IDEA: XBRL DOCUMENT

Investments (Details) - Summary of financial assets measured at fair value on a recurring basis - Fair Value, Measurements, Recurring [Member] - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Available-for-sale securities — current:
Total	$ 17,886	$ 17,884
U.S. Treasury securities [Member]
Available-for-sale securities — current:
Available-for-sale securities - current	14,749	14,748
Level 1 [Member]
Available-for-sale securities — current:
Total	3,137	3,136
Level 1 [Member] \| U.S. Treasury securities [Member]
Available-for-sale securities — current:
Available-for-sale securities - current
Level 2 [Member]
Available-for-sale securities — current:
Total	14,749	14,748
Level 2 [Member] \| U.S. Treasury securities [Member]
Available-for-sale securities — current:
Available-for-sale securities - current	14,749	14,748
Level 3 [Member]
Available-for-sale securities — current:
Total
Level 3 [Member] \| U.S. Treasury securities [Member]
Available-for-sale securities — current:
Available-for-sale securities - current
Money market funds [Member]
Cash equivalents:
Cash equivalents	3,137	3,136
Money market funds [Member] \| Level 1 [Member]
Cash equivalents:
Cash equivalents	3,137	3,136
Money market funds [Member] \| Level 2 [Member]
Cash equivalents:
Cash equivalents
Money market funds [Member] \| Level 3 [Member]
Cash equivalents:
Cash equivalents

XML 38 R29.htm IDEA: XBRL DOCUMENT

Significant Customers (Details)	3 Months Ended		12 Months Ended
Significant Customers (Details)	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Significant Customers (Details) [Line Items]
Number of customers	3	4
Concentration risk, percentage	10.00%	10.00%
Accounts Receivable [Member]
Significant Customers (Details) [Line Items]
Concentration risk, percentage	62.00%		44.00%
Customer One [Member] \| Revenue Benchmark [Member]
Significant Customers (Details) [Line Items]
Concentration risk, percentage	19.00%	18.00%
Customer Two [Member] \| Revenue Benchmark [Member]
Significant Customers (Details) [Line Items]
Concentration risk, percentage	15.00%	18.00%
Customer Three [Member] \| Revenue Benchmark [Member]
Significant Customers (Details) [Line Items]
Concentration risk, percentage	11.00%	16.00%
Customer Four [Member] \| Revenue Benchmark [Member]
Significant Customers (Details) [Line Items]
Concentration risk, percentage		13.00%
Trade Accounts Receivable [Member]
Significant Customers (Details) [Line Items]
Concentration risk, percentage	10.00%		10.00%

XML 39 R30.htm IDEA: XBRL DOCUMENT

Stockholders' Equity (Details)	Mar. 31, 2021 shares
Stockholders' Equity Note [Abstract]
Reserved common stock shares for issuance	65,103
Common stock reserved for future grants	279,505

XML 40 R31.htm IDEA: XBRL DOCUMENT

Stock Incentive Plans (Details) - USD ($)	3 Months Ended
Stock Incentive Plans (Details) - USD ($)	Mar. 31, 2021	Mar. 31, 2020	Aug. 31, 2007
Stock Incentive Plans (Details) [Line Items]
Fair value of common stock intrinsic value	$ 74,775
Stock options exercisable (in Shares)
Stock compensation forfeiture rate, percentage	36.13%
Stock compensation expense	$ 0	$ 3,000
Award shares (in Shares)	31,550
Fair value amount	$ 341,000
2007 Stock Incentive Plan [Member]
Stock Incentive Plans (Details) [Line Items]
Maximum number of shares awarded or sold (in Shares)			440,769
2016 Plan [Member]
Stock Incentive Plans (Details) [Line Items]
Common stock reserved for future issuance of awards (in Shares)	279,505
Plan termination date, description	The 2016 Plan will automatically terminate on March 17, 2026, unless the Company terminates it sooner.
Stock options [Member]
Stock Incentive Plans (Details) [Line Items]
Stock options exercisable (in Shares)	18,250
Restricted Stock Units (RSUs) [Member]
Stock Incentive Plans (Details) [Line Items]
Conversion of common stock	$ 10,000

XML 41 R32.htm IDEA: XBRL DOCUMENT

Stock Incentive Plans (Details) - Schedule of activity of stock incentive and equity plans	3 Months Ended
	Mar. 31, 2021 $ / shares shares
Schedule of activity of stock incentive and equity plans [Abstract]
Shares available for grant, Balance	296,105
Number of options outstanding, Balance	20,100
Weighted-average option exercise price, Balance (in Dollars per share) \| $ / shares	$ 9.71
Number of restricted stock shares issued, Balance	99,570
Number of RSUs outstanding, Balance	45,003
Shares available for grant, Balance	279,505
Number of options outstanding, Balance	20,100
Weighted-average option exercise price, Balance (in Dollars per share) \| $ / shares	$ 9.71
Number of restricted stock shares issued, Balance	99,570
Number of RSUs outstanding, Balance	45,003
Shares available for grant, Granted	(31,550)
Number of options outstanding, Granted
Weighted-average option exercise price, Granted (in Dollars per share) \| $ / shares
Number of restricted stock shares issued, Granted
Number of RSUs outstanding, Granted
Shares available for grant, Exercised/issued
Number of options outstanding, Exercised/issued
Weighted-average option exercise price, Exercised/issued (in Dollars per share) \| $ / shares
Number of restricted stock shares issued, Exercised/issued
Number of RSUs outstanding, Exercised/issued
Shares available for grant, Canceled/forfeited	14,950
Number of options outstanding, Canceled/forfeited
Weighted-average option exercise price, Canceled/forfeited (in Dollars per share) \| $ / shares
Number of restricted stock shares issued, Canceled/forfeited
Number of RSUs outstanding, Canceled/forfeited

XML 42 R33.htm IDEA: XBRL DOCUMENT

Stock Incentive Plans (Details) - Schedule of restricted stock units - Restricted Stock Units (RSUs) [Member] $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2021 USD ($) $ / shares shares
Stock Incentive Plans (Details) - Schedule of restricted stock units [Line Items]
Non-vested RSUs outstanding, Beginning balance \| shares	45,003
Weighted-average price at time of grant, Beginning balance \| $ / shares	$ 6.20
Non-vested RSUs outstanding, Granted \| shares
Weighted-average price at time of grant, Granted \| $ / shares
Non-vested RSUs outstanding, Vested \| shares
Weighted-average price at time of grant, Vested \| $ / shares
Non-vested RSUs outstanding, Cancelled \| shares
Weighted-average price at time of grant, Cancelled \| $ / shares
Non-vested RSUs outstanding, Ending balance \| shares	45,003
Weighted-average price at time of grant, Ending balance \| $ / shares	$ 6.20
Aggregate intrinsic value, Non-vested, Ending balance \| $	$ 278,961

XML 43 R34.htm IDEA: XBRL DOCUMENT

Income Taxes (Details) $ in Thousands	12 Months Ended
Income Taxes (Details) $ in Thousands	Dec. 31, 2017 USD ($)
Maximum [Member]
Income Taxes (Details) [Line Items]
U.S. corporate tax rate	35.00%
Repatriation tax	$ 5,000,000
Minimum [Member]
Income Taxes (Details) [Line Items]
U.S. corporate tax rate	21.00%
Repatriation tax	$ 3,900,000

XML 44 R35.htm IDEA: XBRL DOCUMENT

Segment Information (Details) - USD ($)	3 Months Ended
Segment Information (Details) - USD ($)	Mar. 31, 2021	Mar. 31, 2020
Direct Dose Rx [Member]
Segment Information (Details) [Line Items]
Loss	$ 95,000	$ 119,000

XML 45 R36.htm IDEA: XBRL DOCUMENT

Segment Information (Details) - Schedule of geographic region - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Segment Reporting Information [Line Items]
Total revenue	$ 729	$ 1,160
North America [Member]
Segment Reporting Information [Line Items]
Total revenue	588	1,040
Asia [Member]
Segment Reporting Information [Line Items]
Total revenue	139	113
Other [Member]
Segment Reporting Information [Line Items]
Total revenue	$ 2	$ 7

- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 28
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=75031198&loc=d3e14064-108612

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8933-108599

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8736-108599

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 40
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9031-108599

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8906-108599

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9038-108599

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e9054-108599

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(g)(1)(ii))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 235
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-05(b)(2))
-URI http://asc.fasb.org/extlink&oid=120399901&loc=d3e537907-122884

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(1))
-URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227

+ Details

XML 46 R37.htm IDEA: XBRL DOCUMENT

Segment Information (Details) - Schedule of sales by product type - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Segment Information (Details) - Schedule of sales by product type [Line Items]
Total revenue	$ 729	$ 1,160
Optical [Member]
Segment Information (Details) - Schedule of sales by product type [Line Items]
Total revenue	495	1,027
Rubicon DTP [Member]
Segment Information (Details) - Schedule of sales by product type [Line Items]
Total revenue	$ 234	$ 133

- Definition

+ References

+ Details

Stock Incentive Plans (Details) - Schedule of restricted stock units - Restricted Stock Units (RSUs) [Member] $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2021 USD ($) $ / shares shares
Stock Incentive Plans (Details) - Schedule of restricted stock units [Line Items]
Non-vested RSUs outstanding, Beginning balance \| shares	45,003
Weighted-average price at time of grant, Beginning balance \| $ / shares	$ 6.20
Non-vested RSUs outstanding, Granted \| shares
Weighted-average price at time of grant, Granted \| $ / shares
Non-vested RSUs outstanding, Vested \| shares
Weighted-average price at time of grant, Vested \| $ / shares
Non-vested RSUs outstanding, Cancelled \| shares
Weighted-average price at time of grant, Cancelled \| $ / shares
Non-vested RSUs outstanding, Ending balance \| shares	45,003
Weighted-average price at time of grant, Ending balance \| $ / shares	$ 6.20
Aggregate intrinsic value, Non-vested, Ending balance \| $	$ 278,961