Qualys (QLYS) 10-K 23 Feb 23 2022 FY Annual report Financial data

Document And Entity Information

Document And Entity Information - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Feb. 16, 2023	Jun. 30, 2022
Document Information [Line Items]
Entity Central Index Key	0001107843
Entity Registrant Name	QUALYS, INC.
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	FY
Document Fiscal Year Focus	2022
Document Type	10-K
Document Annual Report	true
Document Period End Date	Dec. 31, 2022
Document Transition Report	false
Entity File Number	001-35662
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	77-0534145
Entity Address, Address Line One	919 E. Hillsdale Boulevard, 4th Floor
Entity Address, City or Town	Foster City
Entity Address, State or Province	CA
Entity Address, Postal Zip Code	94404
City Area Code	650
Local Phone Number	801-6100
Title of 12(b) Security	Common stock, $0.001 par value per share
Trading Symbol	QLYS
Security Exchange Name	NASDAQ
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
ICFR Auditor Attestation Flag	true
Entity Shell Company	false
Entity Public Float			$ 4,288,000
Entity Common Stock, Shares Outstanding		37,009,478
Auditor Firm ID	248
Auditor Name	GRANT THORNTON LLP
Auditor Location	San Jose, California

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current assets:
Cash and cash equivalents	$ 173,719	$ 137,328
Short-term marketable securities	147,608	267,960
Accounts receivable, net of allowance of $736 and $793 as of December 31, 2022 and 2021, respectively	121,795	108,998
Prepaid expenses and other current assets	30,216	32,112
Total current assets	473,338	546,398
Long-term marketable securities	59,206	111,198
Property and equipment, net	47,428	61,854
Operating leases - right of use asset	33,752	37,016
Deferred tax assets, net	45,412	25,087
Total intangible assets, net	12,801	6,545
Goodwill	7,447	7,447
Restricted cash	2,700	1,200
Other noncurrent assets	18,857	17,814
Total assets	700,941	814,559
Current liabilities:
Accounts payable	2,808	1,296
Accrued liabilities	42,592	32,504
Deferred revenues, current	293,728	257,872
Operating lease liabilities, current	13,060	12,608
Total current liabilities	352,188	304,280
Deferred revenues, noncurrent	23,490	32,753
Lease liabilities, noncurrent	29,121	35,914
Other noncurrent liabilities	7,013	4,898
Total liabilities	411,812	377,845
Commitments and contingencies (Note 9)
Stockholders’ equity:
Preferred stock: $0.001 par value; 20,000 shares authorized, no shares issued and outstanding as of December 31, 2022 and 2021	0	0
Common stock: $0.001 par value; 1,000,000 shares authorized, 37,362 and 39,112 shares issued and outstanding as of December 31, 2022 and 2021, respectively	37	39
Additional paid-in capital	512,486	477,323
Accumulated other comprehensive income (loss)	(1,947)	1,007
Accumulated deficit	(221,447)	(41,655)
Total stockholders’ equity	289,129	436,714
Total liabilities and stockholders’ equity	$ 700,941	$ 814,559

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parentheticals) - USD ($) shares in Thousands, $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Allowance for doubtful accounts receivable	$ 736	$ 793
Preferred stock, par value (in dollars per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized (in shares)	20,000	20,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par or stated value per share (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	1,000,000	1,000,000
Common stock, shares issued (in shares)	37,362	39,112
Common stock, shares outstanding (in shares)	37,362	39,112

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenues	$ 489,723	$ 411,172	$ 362,963
Cost of revenues	102,788	89,439	79,226
Gross profit	386,935	321,733	283,737
Operating expenses:
Research and development	101,186	81,289	72,548
Sales and marketing	97,221	76,487	67,965
General and administrative	57,981	76,274	46,570
Total operating expenses	256,388	234,050	187,083
Income from operations	130,547	87,683	96,654
Other income (expense), net:
Interest expense	0	0	(9)
Interest income	5,191	2,287	5,385
Other income (expense), net	(2,038)	(573)	7
Total other income, net	3,153	1,714	5,383
Income before income taxes	133,700	89,397	102,037
Income tax provision	25,708	18,437	10,465
Net income	$ 107,992	$ 70,960	$ 91,572
Net income per share:
Basic (in dollars per share)	$ 2.81	$ 1.82	$ 2.34
Diluted (in dollars per share)	$ 2.74	$ 1.77	$ 2.25
Weighted average shares used in computing net income per share:
Basic (in shares)	38,453	39,030	39,167
Diluted (in shares)	39,344	40,118	40,740

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Net income	$ 107,992	$ 70,960	$ 91,572
Other comprehensive income (loss), net of tax
Net change in unrealized gains (losses) on available-for-sale debt securities, net of tax	(2,520)	(1,409)	402
Net change in unrealized gains (losses) on cash flow hedges, net of tax	(434)	2,900	(2,048)
Other comprehensive income (loss), net of tax	(2,954)	1,491	(1,646)
Comprehensive income	$ 105,038	$ 72,451	$ 89,926

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash flow from operating activities:
Net income	$ 107,992	$ 70,960	$ 91,572
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization expense	34,622	35,897	32,845
Write off of noncurrent asset	0	625	0
Provision for credit losses	590	402	486
Loss on disposal of property and equipment	6	12	106
Stock-based compensation	53,408	67,579	40,035
Amortization of premiums on marketable securities	833	3,869	826
Deferred income taxes	(20,251)	(9,723)	3,512
Changes in operating assets and liabilities:
Accounts receivable	(13,387)	(9,221)	(22,631)
Prepaid expenses and other assets	3,878	(15,665)	(2,329)
Accounts payable	2,107	(32)	(389)
Accrued liabilities and other noncurrent liabilities	3,867	9,322	5,126
Deferred revenues	25,189	46,591	30,927
Net cash provided by operating activities	198,854	200,616	180,086
Cash flow from investing activities:
Purchases of marketable securities	(178,788)	(368,450)	(391,693)
Sales and maturities of marketable securities	347,837	363,941	341,879
Purchases of property and equipment	(15,361)	(24,424)	(30,037)
Proceeds from disposal of property and equipment	0	6	419
Purchases of intangible assets	(8,620)	(1,230)	(1,500)
Maturity of note receivable	0	625	0
Net cash provided by (used in) investing activities	145,068	(29,532)	(80,932)
Cash flow from financing activities:
Repurchase of common stock	(317,344)	(129,977)	(126,729)
Proceeds from exercise of stock options	24,483	49,994	34,461
Payments for taxes related to net share settlement of equity awards	(17,615)	(27,815)	(20,199)
Proceeds from issuance of common stock through employee stock purchase plan	4,445	0	0
Principal payments under finance lease obligations	0	(90)	(114)
Net cash used in financing activities	(306,031)	(107,888)	(112,581)
Net increase (decrease) in cash, cash equivalents and restricted cash	37,891	63,196	(13,427)
Cash, cash equivalents and restricted cash at beginning of period	138,528	75,332	88,759
Cash, cash equivalents and restricted cash at end of period	176,419	138,528	75,332
Supplemental disclosures of cash flow information
Cash paid for interest expense	0	0	9
Cash paid for income taxes, net of refunds	39,739	35,080	8,058
Non-cash investing and financing activities
Purchases of intangible assets recorded in accrued liabilities and other noncurrent liabilities	2,110	120	150
Purchases of property and equipment recorded in accounts payable and accrued liabilities	$ 470	$ 2,086	$ 1,054

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Total
Balances (in shares) at Dec. 31, 2019	39,146
Balance at Dec. 31, 2019	$ 39	$ 362,408	$ 1,162	$ 23,194	$ 386,803
Net income	0	0	0	91,572	91,572
Other comprehensive income (loss), net of tax	$ 0	0	(1,646)	0	(1,646)
Issuance of common stock upon exercise of stock options (in shares)	1,130
Issuance of common stock upon exercise of stock options	$ 1	34,460	0	0	34,461
Repurchase of common stock (in shares)	(1,293)
Repurchase of common stock	$ (1)	(15,530)	0	(111,198)	(126,729)
Issuance of common stock upon vesting of restricted stock units (in shares)	476
Issuance of common stock upon vesting of restricted stock units	$ 0	0	0	0	0
Taxes related to net share settlement of equity awards (in shares)	(206)
Taxes related to net share settlement of equity awards	$ 0	(20,199)	0	0	(20,199)
Stock-based compensation	$ 0	40,220	0	0	40,220
Balances (in shares) at Dec. 31, 2020	39,253
Balance at Dec. 31, 2020	$ 39	401,359	(484)	3,568	404,482
Net income	0	0	0	70,960	70,960
Other comprehensive income (loss), net of tax	$ 0	0	1,491	0	1,491
Issuance of common stock upon exercise of stock options (in shares)	725
Issuance of common stock upon exercise of stock options	$ 1	49,993	0	0	49,994
Repurchase of common stock (in shares)	(1,148)
Repurchase of common stock	$ (1)	(13,793)	0	(116,183)	(129,977)
Issuance of common stock upon vesting of restricted stock units (in shares)	530
Issuance of common stock upon vesting of restricted stock units	$ 0	0	0	0	0
Taxes related to net share settlement of equity awards (in shares)	(248)
Taxes related to net share settlement of equity awards	$ 0	(27,815)	0	0	(27,815)
Stock-based compensation	$ 0	67,579	0	0	67,579
Balances (in shares) at Dec. 31, 2021	39,112
Balance at Dec. 31, 2021	$ 39	477,323	1,007	(41,655)	436,714
Net income	0	0	0	107,992	107,992
Other comprehensive income (loss), net of tax	$ 0	0	(2,954)	0	$ (2,954)
Issuance of common stock upon exercise of stock options (in shares)	468				468	[1]
Issuance of common stock upon exercise of stock options	$ 0	24,483	0	0	$ 24,483
Repurchase of common stock (in shares)	(2,460)
Repurchase of common stock	$ (2)	(29,558)	0	(287,784)	(317,344)
Issuance of common stock upon vesting of restricted stock units (in shares)	329
Issuance of common stock upon vesting of restricted stock units	$ 0	0	0	0	0
Taxes related to net share settlement of equity awards (in shares)	(132)
Taxes related to net share settlement of equity awards	$ 0	(17,615)	0	0	(17,615)
Stock-based compensation	$ 0	53,408	0	0	53,408
Issuance of common stock through employee stock purchase plan (in shares)	45
Issuance of common stock through employee stock purchase plan		4,445			4,445
Balances (in shares) at Dec. 31, 2022	37,362
Balance at Dec. 31, 2022	$ 37	$ 512,486	$ (1,947)	$ (221,447)	$ 289,129
[1]Included 348 thousand shares of PSOs.

Note 1 - The Company and Summar

Note 1 - The Company and Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Basis of Presentation and Significant Accounting Policies [Text Block]	NOTE 1. The Company and Summary of Significant Accounting Policies Description of Business Qualys, Inc. (the “Company”, “we”, “us”, “our”) was incorporated in the state of Delaware on December 30, 1999. Basis of Presentation The accompanying consolidated financial statements and footnotes have been prepared in accordance with U.S. GAAP as well as the instructions to Form 10 Risks and Uncertainties The uncertainty surrounding macroeconomic factors in the U.S. and globally characterized by the supply chain environment, inflationary pressure, rising interest rates, labor shortages, significant volatility of global markets and geopolitical conflicts could have a material adverse effect on the Company's long-term business and could lead to further economic disruption and expose the Company to greater risk as its current and potential customers may Use of Estimates The preparation of the consolidated financial statements in conformity with U.S. GAAP requires management to make certain estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of assets and liabilities at the date of the consolidated financial statements and the reported results of operations during the reporting period. The Company’s management regularly assesses these estimates, which primarily affect revenue recognition, allowance for credit loss, the valuation of goodwill and intangible assets, leases, stock-based compensation and income tax provision. Actual results could differ from those estimates and such differences may Concentration of Credit Risk The Company invests its cash and cash equivalents with major financial institutions. Cash balances with any one may not not Credit risk with respect to accounts receivable is dispersed due to the large number of customers. Collateral is not December 31, 2022 2021 no 10% Cash, Cash Equivalents, Restricted cash and Short-Term and Long-Term Marketable Securities Cash and cash equivalents include cash held in banks, highly liquid money market funds and commercial paper, all with original maturities of three As of December 31, 2022 December 31, 2021, $1.2 Cash equivalents are stated at cost, which approximates fair market value. Short-term and long-term marketable securities are classified as available-for-sale debt securities (AFS debt securities) and are carried at fair value. Unrealized gains and losses in fair value of the AFS debt securities are reported in other comprehensive income (loss). When the AFS debt securities are sold, cost is based on the specific identification method, and the realized gains and losses are included in other income (expense), net in the consolidated statements of operations. AFS debt securities are reviewed quarterly for impairment. An investment is considered impaired when its fair value is below its amortized cost. Declines in fair value from amortized cost for AFS debt securities that the company intends to sell or will more likely than not Accounts Receivable Accounts receivable are recorded at the invoiced amount and do not may not December 31, 2022 2021 December 31, 2022, December 31, 2021 December 31, 2020, Non-marketable securities In 2018, not no may not No not In 2019, fourth December 31, 2021, not no December 31, 2021. Property and Equipment, net Property and equipment are stated at cost less accumulated depreciation and amortization. Depreciation is computed using the straight-line method over the estimated useful lives of the assets, which range from three five The Company purchases physical scanner appliances and other computer equipment that are provided to customers on a subscription basis. This equipment is recorded within property and equipment and the depreciation is recorded in cost of revenues over an estimated useful life of three Upon retirement or disposal, the cost of assets and the related accumulated depreciation are removed from the accounts and any resulting gain or loss is reflected in the consolidated statements of operations. Repairs and maintenance that do not Leases The Company leases certain offices, computer equipment and its shared cloud platform facilities under finance leases and non-cancelable operating leases. For both operating and finance leases, we recognize a right-of-use asset, which represents our right to use the underlying asset for the lease term, and a lease liability, which represents the present value of our obligation to make payments arising over the lease term. Many of our leases include rental escalation clauses, renewal options and/or termination options that are factored into our determination of lease payments and lease terms when appropriate. The present value of the lease payments is calculated using the incremental borrowing rate of the underlying leases determined at lease commencement. As most of our leases do not Where the Company is the lessee, the Company elects to account for non-lease components associated with its leases (e.g., common area maintenance costs) and lease components separately for substantially all of its asset classes, except for shared cloud platforms, for which the Company elected to combine lease and non-lease components. For leases with a term of one not In arrangements where the Company is the lessor, the Company elected to apply the practical expedient to account for lease components (e.g., customer premise equipment) and non-lease components (e.g., service revenue) as combined components as revenue under ASC 606 Impairment of Long-Lived Assets The Company evaluates its long-lived assets, which consist of property and equipment, and intangible assets subject to amortization, for indicators of possible impairment when events or changes in circumstances indicate the carrying amount of an asset may not December 31, 2022 2021 2020 Goodwill and Intangible Assets Goodwill represents the excess of the purchase price over the fair value of the net tangible and identifiable intangible assets acquired in a business combination. Goodwill and indefinite-lived intangible assets are not may one In testing for a potential impairment of goodwill and the indefinite-lived intangible assets, the Company first not 50% not no December 1, 2022 2021 no Asset Acquisitions and Business Combinations The Company applies the provisions of ASC 805, not, may one Derivative Financial Instruments Derivative financial instruments are utilized by the Company to reduce foreign currency exchange risks. The Company uses foreign currency forward contracts, with maturities of 13 first Stock-Based Compensation The Company recognizes the fair value of its stock options, restricted stock units (“RSUs”) and stock purchase rights under the employee stock purchase plan (the “ESPP”) on a straight-line basis over the requisite service periods. The fair value of each stock option or stock purchase right is estimated on the date of grant using the Black-Scholes-Merton option pricing model and the fair value of each RSU is based on the Company's common stock price on the date of grant. Compensation expenses for performance-based stock options (“PSOs”) and performance-based restricted stock units (“PSUs”) are recorded based on expected achievement of the performance metrics specified in the grant, which are assessed on a quarterly basis. Forfeitures are estimated on the date of grant and revised if actual or expected forfeiture materially differs from original estimates. Revenue Recognition The Company derives revenues from subscriptions that require customers to pay a fee in order to access the Company’s cloud solutions. Contract period with customers generally are one five not not not The Company determines revenue recognition through the following steps: • Identification of the contract, or contracts, with a customer; • Identification of the performance obligations in the contract; • Determination of the transaction price • Allocation of the transaction price to the performance obligations in the contract; and • Recognition of revenue when, or as, the Company satisfies a performance obligation. At the inception of a customer contract, the Company makes an assessment as to that customer's ability to pay for the services provided. The Company assesses collectability based on several factors, including credit worthiness of the customer along with past transaction history. In addition, the Company performs periodic evaluations of its customers’ financial condition. Most of the Company’s revenue contracts are subscription based and contain a single performance obligation. The subscription contracts typically do not not not As the Company's cloud-based subscription services are delivered to customers electronically and over time, revenue is generally recognized ratably over the contract terms. When physical equipment is provided to the customers as part of the subscription service contract, the Company applies the practical expedient allowed under ASC 842 606, Contract modifications happen when there is an upsell, where the customers subsequently enter into contract with the Company to purchase additional product offerings or additional scans for additional devices. Contract modifications related to upsells are accounted for prospectively. Deferred revenues consist of customer contracts billed or cash received that will be recognized in the future under subscriptions existing at the balance sheet date. The current portion of deferred revenues represents amounts that are expected to be recognized within one Costs of shipping and handling charges incurred by the Company associated with physical scanner appliances and other computer equipment are included in cost of revenues. Sales taxes and other taxes collected from customers to be remitted to government authorities are excluded from revenues. Incremental direct costs of obtaining a contract, which consist of sales commissions primarily for new business and upsells, are deferred and amortized over the estimated life of the customer relationship if renewals are expected and the renewal commission is not one five Advertising Expenses Advertising costs are expensed as incurred and are included in sales and marketing expense in the consolidated statements of operations. The Company incurred advertising costs of $3.3 million, $2.1 million and $1.6 million for the years ended December 31, 2022 , 2021 and 2020 , respectively. Income Taxes The Company provides for the effect of income taxes in its consolidated financial statements using the asset and liability method which requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events that have been included in the consolidated financial statements. Under this method, deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases, net operating loss carryovers, and tax credit carry forwards. The Company regularly reviews its deferred tax assets for recoverability and establishes a valuation allowance if it is more likely than not not Income tax expense or benefit is recognized for the amount of taxes payable or refundable for the current year and for deferred tax assets and liabilities for the tax consequences of events that have been recognized in an entity’s financial statements or tax returns. The Company must make significant assumptions, judgments and estimates to determine its current income tax provision (benefit), its deferred tax assets and liabilities, and any valuation allowance to be recorded against its deferred tax assets. The Company's estimates and assumptions may The Company applies a two not not 50% 12 may Comprehensive Income (Loss) Other comprehensive income (loss) consists of unrealized gains (losses) on marketable securities, net of tax, and derivative financial instruments designated as cash flow hedges which are not Foreign Currency Transactions The Company’s operations are conducted in various countries around the world and the financial statements of its foreign subsidiaries are reported in the U.S. dollar as their respective functional currency. Monetary assets and liabilities denominated in foreign currencies have been re-measured into U.S. dollars using the exchange rates in effect at the balance sheet date, and income and expenses are re-measured at average exchange rates during the period. Foreign currency re-measurement gains and losses and foreign currency transaction gains and losses are recognized in other income (expense), net. Net Income Per Share Basic net income per share is computed by dividing net income by the weighted-average number of shares outstanding during the period. Diluted net income per share is computed by dividing net income by the weighted-average number of shares outstanding plus potentially dilutive shares outstanding during the period. The potentially dilutive shares are computed by applying the treasury stock method to the Company's stock options, RSUs and the stock purchase rights under the ESPP. Any potential shares that would be anti-dilutive are excluded from the computation of diluted net income per share. Recently Adopted Accounting Pronouncements None. Recently Issued Accounting Pronouncements Not The Company does not not

Note 2 - Fair Value of Financia

Note 2 - Fair Value of Financial Instruments	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Fair Value Disclosures [Text Block]	NOTE 2. Fair Value of Financial Instruments Fair value is defined as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. For certain of the Company’s financial instruments, including certain cash equivalents, accounts receivable, accounts payable and accrued liabilities, the carrying amounts approximate their fair values due to the relatively short maturity of these balances. The Company measures and reports certain cash equivalents, marketable securities, derivative foreign currency forward contracts at fair value in accordance with the provisions of the authoritative accounting guidance that addresses fair value measurements. This guidance establishes a hierarchy for inputs used in measuring fair value that maximizes the use of observable inputs and minimizes the use of unobservable inputs by requiring that the most observable inputs be used when available. The hierarchy is broken down into three Level 1 Level 2 Level 3 The Company's financial instruments consist of assets and liabilities measured using Level 1 2 1 2 The following table sets forth by level within the fair value hierarchy the fair value of the Company's financial assets and liabilities measured at fair value on a recurring basis: December 31, 2022 Level 1 Level 2 Fair Value (in thousands) Money market funds $ 82,701 $ — $ 82,701 U.S. Treasury and government agencies — 156,662 156,662 Foreign government — 1,006 1,006 Corporate bonds — 63,910 63,910 Asset-backed securities — 15,027 15,027 Foreign currency forward contracts — 1,493 1,493 Total assets $ 82,701 $ 238,098 $ 320,799 Foreign currency forward contracts $ — $ 4,679 $ 4,679 Total liabilities $ — $ 4,679 $ 4,679 December 31, 2021 Level 1 Level 2 Fair Value (in thousands) Money market funds $ 75,258 $ — $ 75,258 Commercial paper — 18,896 18,896 U.S. Treasury and government agencies — 254,527 254,527 Foreign government — 1,019 1,019 Corporate bonds — 86,703 86,703 Asset-backed securities — 18,863 18,863 Foreign currency forward contracts — 3,336 3,336 Total assets $ 75,258 $ 383,344 $ 458,602 Foreign currency forward contracts $ — $ 388 $ 388 Total liabilities $ — $ 388 $ 388 There were no 1, 2 3 December 31, 2022 2021. Cash equivalent and investments The Company's cash equivalents and marketable securities consist of the following: December 31, 2022 Amortized Cost Unrealized Gains Unrealized Losses Fair Value (in thousands) Cash equivalents: (1) Money market funds $ 82,701 $ — $ — $ 82,701 U.S. Treasury and government agencies 29,787 4 — 29,791 Total 112,488 4 — 112,492 Short-term marketable securities: Corporate bonds 36,908 3 (337 ) 36,574 Asset-backed securities 726 — (2 ) 724 U.S. Treasury and government agencies 110,225 — (921 ) 109,304 Foreign government 1,008 — (2 ) 1,006 Total 148,867 3 (1,262 ) 147,608 Long-term marketable securities: Corporate bonds 28,146 — (810 ) 27,336 Asset-backed securities 14,435 — (132 ) 14,303 U.S. Treasury and government agencies 18,076 — (509 ) 17,567 Total 60,657 — (1,451 ) 59,206 Total $ 322,012 $ 7 $ (2,713 ) $ 319,306 (1) Excludes cash of $61.2 million. December 31, 2021 Amortized Cost Unrealized Gains Unrealized Losses Fair Value (in thousands) Cash equivalents: (1) Money market funds $ 75,258 $ — $ — $ 75,258 Commercial paper 850 — — 850 Total 76,108 — — 76,108 Short-term marketable securities: (2) Commercial paper 18,046 — — 18,046 Corporate bonds 28,869 101 (7 ) 28,963 Asset-backed securities 3,952 — — 3,952 U.S. Treasury and government agencies 217,160 2 (163 ) 216,999 Total 268,027 103 (170 ) 267,960 Long-term marketable securities: Corporate bonds 57,762 160 (182 ) 57,740 Asset-backed securities 14,941 6 (36 ) 14,911 U.S. Treasury and government agencies 37,664 — (136 ) 37,528 Foreign government 1,007 12 — 1,019 Total 111,374 178 (354 ) 111,198 Total $ 455,509 $ 281 $ (524 ) $ 455,266 ( 1 ( 2 2 10 December 31, 2021. The following table summarizes the gross unrealized losses and fair value of the Company's marketable securities that were in an unrealized loss position aggregated by length of time: December 31, 2022 Less than 12 months 12 months or longer Total Fair value Gross unrealized losses Fair value Gross unrealized losses Fair value Gross unrealized losses (in thousands) Foreign government agencies $ 998 $ (2 ) $ - $ - $ 998 $ (2 ) Asset-backed securities 13,365 (124 ) 1,652 (10 ) 15,017 (134 ) Corporate bonds 33,800 (389 ) 26,326 (758 ) 60,126 (1,147 ) U.S. Treasury and government agencies 89,802 (1,175 ) 36,833 (255 ) 126,635 (1,430 ) Total $ 137,965 $ (1,690 ) $ 64,811 $ (1,023 ) $ 202,776 $ (2,713 ) December 31, 2021 Less than 12 months 12 months or longer Total Fair value Gross unrealized losses Fair value Gross unrealized losses Fair value Gross unrealized losses (in thousands) Asset-backed securities $ 15,867 $ (36 ) $ - $ - $ 15,867 $ (36 ) Corporate bonds 54,143 (189 ) - - 54,143 (189 ) U.S. Treasury and government agencies 241,816 (299 ) - - 241,816 (299 ) Total $ 311,826 $ (524 ) $ - $ - $ 311,826 $ (524 ) The Company had the ability and intent to hold all marketable securities that were in an unrealized loss position until recovery of the amortized cost basis. The Company considered the extent to which fair value was less than amortized cost basis and conditions related to security’s industry and geography and changes to the ratings, if any, and concluded the decline in fair value compared to carrying value was not The following summarizes the fair value of marketable securities by contractual maturity: December 31, 2022 Amortized Cost Fair Value (in thousands) Due within One Year $ 260,629 $ 259,376 Due after One Year through Two Years 43,528 42,272 Mature over Two Years 2,694 2,631 Asset-backed securities 15,161 15,027 Total $ 322,012 $ 319,306 Derivative Financial Instruments Designated cash flow hedges The Company enters into foreign currency forward contracts to reduce the risk of variability in future cash flow due to foreign currency exchange rate fluctuation from certain forecasted subscription revenue orders billed in GBP and Euro and operation expenses incurred in INR, which are designated as cash flow hedges. Hedge effectiveness is assessed at inception and at each reporting period utilizing regression analysis. Unrealized foreign exchange gains or losses related to those designated cash flow hedge contracts are recorded in Accumulated other comprehensive income ("AOCI") and will be reclassified into revenues or operating expenses, respectively, in the same periods when the hedged transactions are recognized in earnings. As of December 31, 2022 , a net amount of unrealized gains of $3.2 million before tax on the foreign currency forward contracts for GBP and Euro reported in AOCI is expected to be reclassified into revenue within the next 12 December 31, 2022 , a net amount of unrealized loss of $1.6 million before tax on the foreign currency forward contracts for INR reported in AOCI is expected to be reclassified into operating expenses within the next 12 Non-designated forward contracts The Company also uses foreign currency forward contracts to hedge certain foreign currency denominated assets or liabilities, which are not The following summarizes derivative financial instruments as of December 31, 2022 and 2021 : December 31, 2022 2021 (in thousands) Assets Foreign currency forward contracts designated as cash flow hedge $ 1,041 $ 1,737 Foreign currency forward contracts not designated as hedging instruments 452 1,599 Total $ 1,493 $ 3,336 Liabilities Foreign currency forward contracts designated as cash flow hedge $ (2,634 ) $ (181 ) Foreign currency forward contracts not designated as hedging instruments (2,045 ) (207 ) Total $ (4,679 ) $ (388 ) Derivative transactions are measured in terms of the notional amount. However, this amount is not not, not December 31, 2022 2021 (in thousands) Foreign currency forward contracts designated as cash flow hedge $ 10,623 $ 9,486 Foreign currency forward contracts not designated as hedging instruments 69,972 56,114 Total $ 80,595 $ 65,600 The Company presents its derivative assets and derivative liabilities at gross fair values in the consolidated balance sheets. However, under the master netting agreements with the respective counterparties of the foreign exchange contracts, subject to applicable requirements, the Company is allowed to net settle transactions of the same currency with a single net amount payable by one December 31, 2022 2021. not not not The following summarizes the gains (losses) recognized from forward contracts and other foreign currency transactions in other income (expense), net in the consolidated statements of operations: Year Ended December 31, 2022 2021 2020 (in thousands) Net gains (losses) from non-designated forward contracts $ 5,093 $ 2,452 $ (1,634 ) Other foreign currency transactions gains (losses) (6,864 ) (2,749 ) 1,894 Total foreign exchange gains (losses), net (1,771 ) (297 ) 260 Other expenses (267 ) (276 ) (253 ) Other income (expense), net $ (2,038 ) $ (573 ) $ 7

Note 3 - Accumulated Other Comp

Note 3 - Accumulated Other Comprehensive Income (Loss)	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Accumulated Other Comprehensive Income Disclosure [Text Block]	NOTE 3 . Accumulated Other Comprehensive Income (Loss) The components and changes in accumulated other comprehensive income (loss) were as follows: Available-for-sale debt securities Cash flow hedges Total (in thousands) Balances at December 31, 2019 $ 822 $ 340 $ 1,162 Change in unrealized gains (losses) during the period 549 (2,099 ) (1,550 ) Net gains reclassified into income during the period (25 ) (564 ) (589 ) Income tax benefit (provision) (122 ) 615 493 Net change during the period 402 (2,048 ) (1,646 ) Balances at December 31, 2020 1,224 (1,708 ) (484 ) Change in unrealized gains (losses) during the period (1,854 ) 2,837 983 Net losses reclassified into income during the period 22 933 955 Income tax benefit (provision) 423 (870 ) (447 ) Net change during the period (1,409 ) 2,900 1,491 Balances at December 31, 2021 (185 ) 1,192 1,007 Change in unrealized gains (losses) during the period (2,462 ) 581 (1,881 ) Net gains reclassified into income during the period — (1,147 ) (1,147 ) Income tax benefit (provision) (58 ) 132 74 Net change during the period (2,520 ) (434 ) (2,954 ) Balances at December 31, 2022 $ (2,705 ) $ 758 $ (1,947 ) The effects on income before income taxes of amounts reclassified from AOCI to the consolidated statements of operations were as follows: Year Ended December 31, 2022 2021 2020 (in thousands) Reclassification of AOCI - Available-for-sale debt securities Other income (expense), net $ — $ (22 ) $ 25 Reclassification of AOCI - Cash flow hedges Revenues $ 1,897 $ (1,667 ) $ 960 Cost of revenues (169 ) 149 (76 ) Research and development (478 ) 492 (264 ) Sales and marketing (30 ) 28 (20 ) General and administrative (73 ) 65 (36 ) Total $ 1,147 $ (933 ) $ 564

Note 4 - Property and Equipment

Note 4 - Property and Equipment, Net	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Property, Plant and Equipment Disclosure [Text Block]	NOTE 4. Property and Equipment, Net Property and equipment, net, which includes assets under finance leases, consists of the following: December 31, 2022 2021 (in thousands) Computer equipment $ 173,832 $ 161,809 Computer software 25,808 25,807 Leasehold improvements 21,009 21,092 Scanner appliances 15,696 16,510 Furniture, fixtures and equipment 6,524 6,479 Total property and equipment 242,869 231,697 Less: accumulated depreciation and amortization (195,441 ) (169,843 ) Property and equipment, net $ 47,428 $ 61,854 As of December 31, 2022 and 2021 , physical scanner appliances and other computer equipment that are or will be subject to leases by customers had a net carrying value of $6.7 million and $5.3 not $1.3 December 31, 2022 , 2021 and 2020 , respectively. Assets under finance leases were acquired upon completion of lease term and placed within computer equipment as of December 31, 2022.

Note 5 - Revenue From Contracts

Note 5 - Revenue From Contracts With Customers	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Revenue from Contract with Customer [Text Block]	NOTE 5. Revenue from Contracts with Customers The Company records deferred revenue when cash payments are received or due in advance of its performance obligations offset by revenue recognized in the period. Revenues of $254.9 million and $211.0 million were recognized during the years ended December 31, 2022 and December 31, 2021 , respectively, which amounts were included in the deferred revenue balances of $290.6 million and $244.0 million as of December 31, 2021 and December 31, 2020 , respectively. The Company's payment terms vary by the type and location of its customers. The term between invoicing and when payment is due is not The following table sets forth the expected revenue from all remaining performance obligations as of December 31, 2022 (in thousands) 2023 $ 158,607 2024 82,902 2025 27,874 2026 1,994 2027 692 2028 and thereafter 62 Total $ 272,131 Revenues allocated to remaining performance obligations represents the transaction price of noncancelable orders for which service has not one From time to time, the Company enters into contracts with customers that extend beyond one one not Revenues by sales channel are as follows: Year Ended December 31, 2022 2021 2020 (in thousands) Direct $ 285,382 $ 243,389 $ 211,897 Partner 204,341 167,783 151,066 Total $ 489,723 $ 411,172 $ 362,963 The Company utilizes partners to enable and accelerate the adoption of its cloud platform by increasing its distribution capabilities and market awareness of its cloud platform as well as by targeting geographic regions outside the reach of its direct sales force. The Company's channel partners maintain relationships with their customers throughout the territories in which they operate and provide their customers with services and third may one not 13, Deferred costs to obtain contracts are as follows: December 31, 2022 2021 (in thousands) Current $ 5,018 $ 4,223 Noncurrent $ 10,090 $ 8,391 For the years ended December 31, 2022 , 2021 and 2020 , the Company recognized $5.0 million, $4.0 million and $3.0 million, respectively, of amortization expense relating to deferred costs to obtain contracts During the same periods, there was no impairment loss related to the deferred costs to obtain contracts.

Note 6 - Acquisitions

Note 6 - Acquisitions	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Business Combination Disclosure [Text Block]	NOTE 6. Acquisitions On October 4, 2022, eighteen five two On August 19, 2021, August 2022. five On July 24, 2020, October 2021. four two There were no December 31, 2022 2021

Note 7 - Intangible Assets, Net

Note 7 - Intangible Assets, Net	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Intangible Assets Disclosure [Text Block]	NOTE 7. Intangible Assets, Net Intangible assets consist primarily of developed technology and patent licenses acquired from business or asset acquisitions. Acquired intangibles are amortized on a straight-line basis over the respective estimated useful lives of the assets. The carrying values of intangible assets are as follows: December 31, 2022 (in thousands) Weighted Average Life (Years) Weighted Average Remaining Life (Years) Cost Accumulated Amortization Net Book Value Developed technology 4.6 1.4 $ 40,141 $ (27,860 ) $ 12,281 Patent licenses 14.0 1.7 1,387 (1,221 ) 166 Non-compete agreements 2.0 — 500 (500 ) — Assembled workforce 2.0 1.7 359 (45 ) 314 Total intangibles subject to amortization $ 42,387 $ (29,626 ) $ 12,761 Intangible assets not subject to amortization 40 Total intangible assets, net $ 12,801 December 31, 2021 (in thousands) Weighted Average Life (Years) Weighted Average Remaining Life (Years) Cost Accumulated Amortization Net Book Value Developed technology 4.5 0.9 $ 28,556 $ (22,463 ) $ 6,093 Patent licenses 14.0 2.7 1,387 (1,121 ) 266 Non-compete agreements 2.0 0.6 500 (354 ) 146 Total intangibles subject to amortization $ 30,443 $ (23,938 ) 6,505 Intangible assets not subject to amortization 40 Total intangible assets, net $ 6,545 Intangible assets amortization expenses were $5.7 million, $6.7 million and $6.3 million for the December 31, 2022 2021 2020 As of December 31, 2022 (in thousands) 2023 $ 3,085 2024 2,904 2025 2,557 2026 2,477 2027 1,738 Total expected future amortization expense $ 12,761

Note 8 - Leases

Note 8 - Leases	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Lessee, Operating Leases and Finance Lease [Text Block]	NOTE 8. Leases The Company leases certain offices, computer equipment and its shared cloud platform facilities under non-cancelable operating leases for varying periods through 2028. not not December 31, 2022 , 2021 and 2020 , respectively. Supplemental cash flow information related to operating leases was as follows: Year Ended December 31, 2022 2021 2020 (in thousands) Cash payments included in the measurement of lease liabilities $ 15,751 $ 14,646 $ 13,403 Lease liabilities arising from obtaining right-of-use assets $ 8,669 $ 4,110 $ 15,837 The weighted average remaining lease term and the weighted average discount rate of the Company's operating leases were as follows: December 31, 2022 2021 Weighted average remaining lease term (years) 3.7 4.5 Weighted average discount rate 5.2 % 4.8 % Maturities of the Company's operating lease liabilities as of December 31, 2022 (in thousands) 2023 $ 14,940 2024 13,460 2025 7,715 2026 4,498 2027 4,353 2028 and thereafter 1,465 Total minimum lease payments 46,431 Less: interest (4,250 ) Present value of net minimum lease payments 42,181 Less: lease liabilities, current (13,060 ) Lease liabilities, noncurrent $ 29,121

Note 9 - Commitments and Contin

Note 9 - Commitments and Contingencies	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	NOTE 9. Commitment and Contingencies Purchase Obligation The Company has entered into agreements to purchase goods and services in the ordinary course of business. As of December 31, 2022 (in thousands) 2023 $ 12,862 2024 13,261 2025 12,597 2026 11,591 2027 14,091 Total purchase commitments $ 64,402 Indemnifications The Company from time to time enters into certain types of contracts that contingently require it to indemnify various parties against claims from third may may not not The Company maintains director and officer insurance, which may Legal Proceedings From time to time the Company may As of December 31, 2022

Note 10 - Stockholders' Equity

Note 10 - Stockholders' Equity and Stock-based Compensation	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Shareholders' Equity and Share-Based Payments [Text Block]	NOTE 10. Stockholders' Equity and Stock-based Compensation Preferred Stock Effective October 3, 2012, December 31, 2022 2021 Common Stock Equity Incentive Plan 2000 Under the 2000 “2000 not not four ten 2000 2000 2000 2012 The 2012 2012 September 2012 September 26, 2012. 2012 2012 January 1 31, 2022, 2012 On June 8, 2022 ( 2012 2012 2012 2012 2012 2012 2012 no 2012 December 31, 2022 may four may may may no ten 2021 On June 9, 2021, 2021 August 16 February 16 may first December 31, 2022, Stock-based Compensation The following table shows a summary of the stock-based compensation expenses included in the consolidated statements of operations for the years ended December 31, 2022 2021 2020 Year Ended December 31, 2022 2021 2020 (in thousands) Cost of revenues $ 5,305 $ 3,782 $ 2,767 Research and development 14,585 10,750 13,502 Sales and marketing 9,837 6,323 5,785 General and administrative 23,681 46,724 17,981 Total stock-based compensation $ 53,408 $ 67,579 $ 40,035 The income tax benefit related to the stock-based compensation expenses was $8.3 million, $6.2 million and December 31, 2022 2021 2020 As of December 31, 2022 , the Company had unrecognized stock-based compensation expenses of $24.5 million, $92.2 million and $0.3 million related to options, RSUs and ESPP, respectively, which are expected to be recognized over weighted-average periods of 2.9 years, 2.8 years and 0.1 years, respectively. Performance-Based Stock Options and Restricted Stock Units On December 21, 2018, 2019 first January 1, 2019. second three January 2019 December 2021. three January 2019 December 2021 2021. third one third 2019, 2020 2021. On November 2, 2019, 2020 first December 1, 2019. second three January 2020 December 2022. On December 10, 2020, 2021 first November 1, 2020. second three January 2021 December 2023. The vesting of the above awards was conditioned on Mr. Courtot’s continued service through the vesting dates or, for PSOs and PSUs, the dates that performance is certified in addition to the achievement of performance goals. If Mr. Courtot’s employment was terminated (a) by reason of death or disability or (b) by the Company for reasons other than cause or good reason within 12 months following a change in control, then 100% of any unvested portions of these awards would vest, with any vesting in connection with change in control terminations conditioned upon the effectiveness of a release of claims in favor of the Company. In February 2021 2020, 2019 2020 2019, On March 19, 2021, 2021, 2020 2019 December 31, 2021. On April 27, 2021, three January 2021 December 2023. 0% 200% 100% On October 28, 2021, three three January 2022 December 2024. first second 100% first second third third 100% On October 27, 2022, three three January 2023 December 2025. first second 100% first second 100%, third third 12 100% For the years ended December 31, 2022 , 2021 and 2020 , stock-based compensation expenses of $[nil], $13.3 $0.2 Stock Options The weighted-average grant date fair value of the Company’s stock options granted for the years ended December 31, 2022 2021 2020 $50.32, $41.23 Year Ended December 31, 2022 2021 2020 Expected term (in years) 4.3 to 4.4 5.2 to 5.5 4.5 to 5.5 Volatility 40% to 43% 38% to 41% 38% to 43% Risk-free interest rate 1.7% to 4.2% 0.5% to 1.2% 0.3% to 1.4% Dividend yield — — — The expected term of the options is based on evaluations of historical and expected future employee exercise behavior. The risk-free interest rate is based on the U.S. Treasury rates at the date of grant with maturity dates equal to the expected term at the grant date. The volatility was estimated using the historical volatility derived from the Company's common stock. The Company has not not A summary of the Company’s stock option activity is as follows: Outstanding Options Weighted Average Exercise Price Weighted Average Remaining Contractual Life Aggregate Intrinsic Value (in thousands) (Years) (in thousands) Balance as of December 31, 2021 1,838 $ 66.05 6.0 $ 130,791 Granted 593 $ 133.43 Exercised (468 ) $ 52.29 Canceled (156 ) $ 114.21 Balance as of December 31, 2022 1,807 $ 87.59 6.5 $ 58,024 Vested and expected to vest - December 31, 2022 1,583 $ 81.95 6.1 $ 57,690 Exercisable - December 31, 2022 981 $ 56.25 4.4 $ 56,062 The total intrinsic value of options exercised for the years ended December 31, 2022 , 2021 and 2020 was $39.8 million, $42.5 million and $77.5 million, respectively. Intrinsic value of an option is the difference between the fair value of the Company’s common stock at the time of exercise and the exercise price paid. Restricted Stock Units A summary of the Company’s RSU activity is as follows: Outstanding RSUs Weighted Average Grant Date Fair Value (in thousands) Balance as of December 31, 2021 952 (1) $ 105.20 Granted 711 (2) $ 137.50 Vested (330 ) $ 100.27 Forfeited (150 ) $ 117.63 Balance as of December 31, 2022 1,183 (3) $ 124.42 Outstanding and expected to vest - December 31, 2022 929 $ 122.55 ( 1 2021 2022 ( 2 2022 2021 2023. ( 3 2022 2021. The aggregate fair value of RSUs vested for the years ended December 31, 2022 2021 2020 $43.9 million, $59.5 million and $46.5 million, respectively. Employee Stock Purchase Plan The weighted-average grant date fair value of the Company’s ESPP for the year ended December 31, 2022 Year Ended December 31, 2022 Expected term (in years) 0.5 Volatility 41.1% to 50.1% Risk-free interest rate 0.7% to 3.1% Dividend yield — The expected term of the ESPP represents the six not not Share Repurchase Program The Company's share repurchase program was authorized by the board of directors as follows: Announcement Date Authorized Dollar Value (in millions) February 12, 2018 $ 100.0 October 30, 2018 100.0 October 30, 2019 100.0 May 7, 2020 100.0 February 10, 2021 100.0 November 3, 2021 200.0 May 4, 2022 200.0 Total as of December 31, 2022 $ 900.0 Shares may 10b 18 1934, 10b5 1 first For the years ended December 31, 2022 2021 2020 ased 2.5 shares, 1.1 million shares and 1.3 million shares of its common stock for $317.3 million, $130.0 million and $126.7 million, respectively December 31, 2022 million On February 9, 2023 ,

Note 11 - Employee Benefits Pla

Note 11 - Employee Benefits Plan	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Compensation and Employee Benefit Plans [Text Block]	NOTE 11. Employee Benefits Plan The Company’s 401 2000 401 401 401 December 31, 2022 , 2021 and 2020 , the Company made contributions to the 401 The Company contributes to a Provident Fund Plan for its employees in India, which is a defined contribution plan set up in accordance with local labor and tax laws. Gratuity is also paid by the Company to eligible employees in India in accordance with Payment of Gratuity Act, 1972. December 31, 2022 , 2021 and 2020 , the Company contributed $2.0 million, $1.7 million and $1.4 million, respectively, to those plans.

Note 12 - Income Taxes

Note 12 - Income Taxes	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Income Tax Disclosure [Text Block]	NOTE 12. Income Taxes The Company’s geographical breakdown of income before income taxes is as follows: Year Ended December 31, 2022 2021 2020 (in thousands) Domestic $ 122,013 $ 80,472 $ 94,099 Foreign 11,687 8,925 7,938 Income before income taxes $ 133,700 $ 89,397 $ 102,037 Income tax provision consists of the following: Year Ended December 31, 2022 2021 2020 (in thousands) Current Federal $ 35,286 $ 20,135 $ 1,944 State 6,269 4,324 1,438 Foreign 4,606 3,701 3,571 Current income tax provision 46,161 28,160 6,953 Deferred Federal (17,097 ) (7,342 ) 4,239 State (3,055 ) (1,722 ) 26 Foreign (301 ) (659 ) (753 ) Deferred income tax provision (benefit) (20,453 ) (9,723 ) 3,512 Income tax provision $ 25,708 $ 18,437 $ 10,465 The reconciliation of the statutory federal income tax rate to the Company’s effective tax rate is as follows: Year Ended December 31, 2022 2021 2020 Federal statutory rate 21.0 % 21.0 % 21.0 % State taxes 2.3 3.1 1.6 Stock-based compensation 3.4 10.3 4.8 Excess tax benefits related to stock-based compensation (5.2 ) (5.4 ) (13.8 ) Foreign source income 3.8 0.4 0.2 Change in valuation allowance 0.3 0.2 0.8 Foreign-derived intangible income deduction (4.9 ) (7.0 ) (1.7 ) Federal and state research and development credit (1.3 ) (1.9 ) (2.6 ) Other (0.2 ) (0.1 ) — Income tax provision 19.2 % 20.6 % 10.3 % Deferred Income Taxes Deferred income taxes reflect the tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts used for income tax purposes. The components of the Company’s deferred tax assets and liabilities are as follows: December 31, 2022 2021 (in thousands) Deferred tax assets Research and development credit carryforwards $ 10,957 $ 10,743 Accrued liabilities 3,677 1,655 Deferred revenues 5,766 7,250 Operating lease liabilities 10,667 11,777 Intangible assets 3,465 2,988 Stock-based compensation 4,691 4,085 Capitalized R&D 30,234 9,389 Other 2,195 3,920 Gross deferred tax assets 71,652 51,807 Valuation allowance (12,476 ) (11,364 ) Total deferred tax assets 59,176 40,443 Deferred tax liabilities Fixed assets (1,745 ) (3,320 ) Operating leases - right of use asset (8,359 ) (9,010 ) Deferred commissions (3,660 ) (3,026 ) Total deferred tax liabilities (13,764 ) (15,356 ) Net deferred tax assets $ 45,412 $ 25,087 The realization of deferred tax assets is dependent upon the generation of sufficient taxable income of the appropriate character in future periods. The Company regularly assesses the ability to realize its deferred tax assets and establishes a valuation allowance if it is more-likely than- not not not not December 31, 2022 . Additionally, due to a lack of sufficient future income of the appropriate character, certain U.S. federal and state deferred tax assets are not not December 31, 2022 and 2021 , respectively. The increase of $1.1 million in valuation allowance was mainly associated with the California research and development credit generated during the year ended December 31, 2022 and unrealized loss on available for sale securities that will not As of December 31, 2022 , the Company had $16.2 million of state research and development credit carryforwards. State research and development credits do not December 31, 2022 , the Company had foreign tax credit carryforwards of $0.9 million which begin to expire in 2028. The following table summarizes the activity related to the Company’s unrecognized tax benefits: Year Ended December 31, 2022 2021 2020 (in thousands) Unrecognized tax benefits beginning balance $ 9,676 $ 8,855 $ 7,778 Gross increase for tax positions of prior years 89 — 4 Gross decrease for tax positions of prior years — (25 ) — Gross increase for tax positions of current year 777 846 1,258 Lapse of statute of limitations — — (185 ) Total unrecognized tax benefits $ 10,542 $ 9,676 $ 8,855 The unrecognized tax benefits, if recognized, would impact the income tax provision by $5.3 million, $4.9 million and $4.6 million as of December 31, 2022 , 2021 and 2020 , respectively. The remaining amount would result in the recognition of a corresponding deferred tax asset that is then offset by a full valuation allowance. As of December 31, 2022 , the Company does not twelve not December 31, 2022 , 2021 and 2020 . The Company files income tax returns in the United States, including various state jurisdictions. The Company’s subsidiaries file tax returns in various foreign jurisdictions. The tax years 2001 2021 may As of December 31, 2022 not may

Note 13 - Segment and Geographi

Note 13 - Segment and Geographic Area Information	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Segment Reporting Disclosure [Text Block]	NOTE 13. Segment and Geographic Area Information Under ASC 280 one one Revenue by geographic area, based on the customer's billing address, is as follows: Year Ended December 31, 2022 2021 2020 (in thousands) United States $ 292,291 $ 252,428 $ 229,484 Foreign 197,432 158,744 133,479 Total revenues $ 489,723 $ 411,172 $ 362,963 Long-lived assets, which consist of Property and equipment, net and Operating leases - right of use asset, by geographic area, are as follows: December 31, 2022 2021 (in thousands) United States $ 58,775 $ 66,440 India 16,057 20,401 Rest of world 6,348 12,029 Total Long-lived Assets $ 81,180 $ 98,870

Note 14 - Net Income Per Share

Note 14 - Net Income Per Share	12 Months Ended
	Dec. 31, 2022
Notes to Financial Statements
Earnings Per Share [Text Block]	NOTE 14. Net Income Per Share The computations for basic and diluted net income per share are as follows: Year Ended December 31, 2022 2021 2020 (in thousands, except per share data) Numerator: Net income $ 107,992 $ 70,960 $ 91,572 Denominator: Basic weighted average shares 38,453 39,030 39,167 Effect of potentially dilutive shares: Stock options 672 863 1,262 Restricted stock units 216 224 311 Employee stock purchase plan 3 1 — Diluted weighted average shares $ 39,344 $ 40,118 $ 40,740 Net income per share: Basic $ 2.81 $ 1.82 $ 2.34 Diluted $ 2.74 $ 1.77 $ 2.25 Potentially dilutive shares not Year Ended December 31, 2022 2021 2020 (in thousands) Stock options 686 534 532 Restricted stock units 90 61 52 Employee stock purchase plan 5 — — Total anti-dilutive shares 781 595 584

Significant Accounting Policies

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2022
Accounting Policies [Abstract]
Description Of Business Policy [Policy Text Block]	Description of Business Qualys, Inc. (the “Company”, “we”, “us”, “our”) was incorporated in the state of Delaware on December 30, 1999.
Basis of Accounting, Policy [Policy Text Block]	Basis of Presentation The accompanying consolidated financial statements and footnotes have been prepared in accordance with U.S. GAAP as well as the instructions to Form 10
Risk and Uncertainties, Policy [Policy Text Block]	Risks and Uncertainties The uncertainty surrounding macroeconomic factors in the U.S. and globally characterized by the supply chain environment, inflationary pressure, rising interest rates, labor shortages, significant volatility of global markets and geopolitical conflicts could have a material adverse effect on the Company's long-term business and could lead to further economic disruption and expose the Company to greater risk as its current and potential customers may
Use of Estimates, Policy [Policy Text Block]	Use of Estimates The preparation of the consolidated financial statements in conformity with U.S. GAAP requires management to make certain estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of assets and liabilities at the date of the consolidated financial statements and the reported results of operations during the reporting period. The Company’s management regularly assesses these estimates, which primarily affect revenue recognition, allowance for credit loss, the valuation of goodwill and intangible assets, leases, stock-based compensation and income tax provision. Actual results could differ from those estimates and such differences may
Concentration Risk, Credit Risk, Policy [Policy Text Block]	Concentration of Credit Risk The Company invests its cash and cash equivalents with major financial institutions. Cash balances with any one may not not Credit risk with respect to accounts receivable is dispersed due to the large number of customers. Collateral is not December 31, 2022 2021 no 10%
Cash, Cash Equivalents and Short-Term and Long-Term Investments Policy [Policy Text Block]	Cash, Cash Equivalents, Restricted cash and Short-Term and Long-Term Marketable Securities Cash and cash equivalents include cash held in banks, highly liquid money market funds and commercial paper, all with original maturities of three As of December 31, 2022 December 31, 2021, $1.2 Cash equivalents are stated at cost, which approximates fair market value. Short-term and long-term marketable securities are classified as available-for-sale debt securities (AFS debt securities) and are carried at fair value. Unrealized gains and losses in fair value of the AFS debt securities are reported in other comprehensive income (loss). When the AFS debt securities are sold, cost is based on the specific identification method, and the realized gains and losses are included in other income (expense), net in the consolidated statements of operations. AFS debt securities are reviewed quarterly for impairment. An investment is considered impaired when its fair value is below its amortized cost. Declines in fair value from amortized cost for AFS debt securities that the company intends to sell or will more likely than not
Accounts Receivable [Policy Text Block]	Accounts Receivable Accounts receivable are recorded at the invoiced amount and do not may not December 31, 2022 2021 December 31, 2022, December 31, 2021 December 31, 2020,
Securities Owned Not Readily Marketable, Policy [Policy Text Block]	Non-marketable securities In 2018, not no may not No not In 2019, fourth December 31, 2021, not no December 31, 2021.
Property, Plant and Equipment, Policy [Policy Text Block]	Property and Equipment, net Property and equipment are stated at cost less accumulated depreciation and amortization. Depreciation is computed using the straight-line method over the estimated useful lives of the assets, which range from three five The Company purchases physical scanner appliances and other computer equipment that are provided to customers on a subscription basis. This equipment is recorded within property and equipment and the depreciation is recorded in cost of revenues over an estimated useful life of three Upon retirement or disposal, the cost of assets and the related accumulated depreciation are removed from the accounts and any resulting gain or loss is reflected in the consolidated statements of operations. Repairs and maintenance that do not
Lessee, Leases [Policy Text Block]	Leases The Company leases certain offices, computer equipment and its shared cloud platform facilities under finance leases and non-cancelable operating leases. For both operating and finance leases, we recognize a right-of-use asset, which represents our right to use the underlying asset for the lease term, and a lease liability, which represents the present value of our obligation to make payments arising over the lease term. Many of our leases include rental escalation clauses, renewal options and/or termination options that are factored into our determination of lease payments and lease terms when appropriate. The present value of the lease payments is calculated using the incremental borrowing rate of the underlying leases determined at lease commencement. As most of our leases do not Where the Company is the lessee, the Company elects to account for non-lease components associated with its leases (e.g., common area maintenance costs) and lease components separately for substantially all of its asset classes, except for shared cloud platforms, for which the Company elected to combine lease and non-lease components. For leases with a term of one not In arrangements where the Company is the lessor, the Company elected to apply the practical expedient to account for lease components (e.g., customer premise equipment) and non-lease components (e.g., service revenue) as combined components as revenue under ASC 606
Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block]	Impairment of Long-Lived Assets The Company evaluates its long-lived assets, which consist of property and equipment, and intangible assets subject to amortization, for indicators of possible impairment when events or changes in circumstances indicate the carrying amount of an asset may not December 31, 2022 2021 2020
Goodwill and Intangible Assets, Policy [Policy Text Block]	Goodwill and Intangible Assets Goodwill represents the excess of the purchase price over the fair value of the net tangible and identifiable intangible assets acquired in a business combination. Goodwill and indefinite-lived intangible assets are not may one In testing for a potential impairment of goodwill and the indefinite-lived intangible assets, the Company first not 50% not no December 1, 2022 2021 no
Business Combinations Policy [Policy Text Block]	Asset Acquisitions and Business Combinations The Company applies the provisions of ASC 805, not, may one
Derivatives, Reporting of Derivative Activity [Policy Text Block]	Derivative Financial Instruments Derivative financial instruments are utilized by the Company to reduce foreign currency exchange risks. The Company uses foreign currency forward contracts, with maturities of 13 first
Share-Based Payment Arrangement [Policy Text Block]	Stock-Based Compensation The Company recognizes the fair value of its stock options, restricted stock units (“RSUs”) and stock purchase rights under the employee stock purchase plan (the “ESPP”) on a straight-line basis over the requisite service periods. The fair value of each stock option or stock purchase right is estimated on the date of grant using the Black-Scholes-Merton option pricing model and the fair value of each RSU is based on the Company's common stock price on the date of grant. Compensation expenses for performance-based stock options (“PSOs”) and performance-based restricted stock units (“PSUs”) are recorded based on expected achievement of the performance metrics specified in the grant, which are assessed on a quarterly basis. Forfeitures are estimated on the date of grant and revised if actual or expected forfeiture materially differs from original estimates.
Revenue [Policy Text Block]	Revenue Recognition The Company derives revenues from subscriptions that require customers to pay a fee in order to access the Company’s cloud solutions. Contract period with customers generally are one five not not not The Company determines revenue recognition through the following steps: • Identification of the contract, or contracts, with a customer; • Identification of the performance obligations in the contract; • Determination of the transaction price • Allocation of the transaction price to the performance obligations in the contract; and • Recognition of revenue when, or as, the Company satisfies a performance obligation. At the inception of a customer contract, the Company makes an assessment as to that customer's ability to pay for the services provided. The Company assesses collectability based on several factors, including credit worthiness of the customer along with past transaction history. In addition, the Company performs periodic evaluations of its customers’ financial condition. Most of the Company’s revenue contracts are subscription based and contain a single performance obligation. The subscription contracts typically do not not not As the Company's cloud-based subscription services are delivered to customers electronically and over time, revenue is generally recognized ratably over the contract terms. When physical equipment is provided to the customers as part of the subscription service contract, the Company applies the practical expedient allowed under ASC 842 606, Contract modifications happen when there is an upsell, where the customers subsequently enter into contract with the Company to purchase additional product offerings or additional scans for additional devices. Contract modifications related to upsells are accounted for prospectively. Deferred revenues consist of customer contracts billed or cash received that will be recognized in the future under subscriptions existing at the balance sheet date. The current portion of deferred revenues represents amounts that are expected to be recognized within one Costs of shipping and handling charges incurred by the Company associated with physical scanner appliances and other computer equipment are included in cost of revenues. Sales taxes and other taxes collected from customers to be remitted to government authorities are excluded from revenues. Incremental direct costs of obtaining a contract, which consist of sales commissions primarily for new business and upsells, are deferred and amortized over the estimated life of the customer relationship if renewals are expected and the renewal commission is not one five
Advertising Cost [Policy Text Block]	Advertising Expenses Advertising costs are expensed as incurred and are included in sales and marketing expense in the consolidated statements of operations. The Company incurred advertising costs of $3.3 million, $2.1 million and $1.6 million for the years ended December 31, 2022 , 2021 and 2020 , respectively.
Income Tax, Policy [Policy Text Block]	Income Taxes The Company provides for the effect of income taxes in its consolidated financial statements using the asset and liability method which requires the recognition of deferred tax assets and liabilities for the expected future tax consequences of events that have been included in the consolidated financial statements. Under this method, deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases, net operating loss carryovers, and tax credit carry forwards. The Company regularly reviews its deferred tax assets for recoverability and establishes a valuation allowance if it is more likely than not not Income tax expense or benefit is recognized for the amount of taxes payable or refundable for the current year and for deferred tax assets and liabilities for the tax consequences of events that have been recognized in an entity’s financial statements or tax returns. The Company must make significant assumptions, judgments and estimates to determine its current income tax provision (benefit), its deferred tax assets and liabilities, and any valuation allowance to be recorded against its deferred tax assets. The Company's estimates and assumptions may The Company applies a two not not 50% 12 may
Comprehensive Income, Policy [Policy Text Block]	Comprehensive Income (Loss) Other comprehensive income (loss) consists of unrealized gains (losses) on marketable securities, net of tax, and derivative financial instruments designated as cash flow hedges which are not
Foreign Currency Transactions and Translations Policy [Policy Text Block]	Foreign Currency Transactions The Company’s operations are conducted in various countries around the world and the financial statements of its foreign subsidiaries are reported in the U.S. dollar as their respective functional currency. Monetary assets and liabilities denominated in foreign currencies have been re-measured into U.S. dollars using the exchange rates in effect at the balance sheet date, and income and expenses are re-measured at average exchange rates during the period. Foreign currency re-measurement gains and losses and foreign currency transaction gains and losses are recognized in other income (expense), net.
Earnings Per Share, Policy [Policy Text Block]	Net Income Per Share Basic net income per share is computed by dividing net income by the weighted-average number of shares outstanding during the period. Diluted net income per share is computed by dividing net income by the weighted-average number of shares outstanding plus potentially dilutive shares outstanding during the period. The potentially dilutive shares are computed by applying the treasury stock method to the Company's stock options, RSUs and the stock purchase rights under the ESPP. Any potential shares that would be anti-dilutive are excluded from the computation of diluted net income per share.
New Accounting Pronouncements, Policy [Policy Text Block]	Recently Adopted Accounting Pronouncements None. Recently Issued Accounting Pronouncements Not The Company does not not

Note 2 - Fair Value of Financ_2

Note 2 - Fair Value of Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2022
Notes Tables
Fair Value, Assets Measured on Recurring Basis [Table Text Block]	December 31, 2022 Level 1 Level 2 Fair Value (in thousands) Money market funds $ 82,701 $ — $ 82,701 U.S. Treasury and government agencies — 156,662 156,662 Foreign government — 1,006 1,006 Corporate bonds — 63,910 63,910 Asset-backed securities — 15,027 15,027 Foreign currency forward contracts — 1,493 1,493 Total assets $ 82,701 $ 238,098 $ 320,799 Foreign currency forward contracts $ — $ 4,679 $ 4,679 Total liabilities $ — $ 4,679 $ 4,679 December 31, 2021 Level 1 Level 2 Fair Value (in thousands) Money market funds $ 75,258 $ — $ 75,258 Commercial paper — 18,896 18,896 U.S. Treasury and government agencies — 254,527 254,527 Foreign government — 1,019 1,019 Corporate bonds — 86,703 86,703 Asset-backed securities — 18,863 18,863 Foreign currency forward contracts — 3,336 3,336 Total assets $ 75,258 $ 383,344 $ 458,602 Foreign currency forward contracts $ — $ 388 $ 388 Total liabilities $ — $ 388 $ 388
Cash and Cash Equivalents and Debt Securities, Available-for-sale, Amortized Cost to Fair Value [Table Text Block]	December 31, 2022 Amortized Cost Unrealized Gains Unrealized Losses Fair Value (in thousands) Cash equivalents: (1) Money market funds $ 82,701 $ — $ — $ 82,701 U.S. Treasury and government agencies 29,787 4 — 29,791 Total 112,488 4 — 112,492 Short-term marketable securities: Corporate bonds 36,908 3 (337 ) 36,574 Asset-backed securities 726 — (2 ) 724 U.S. Treasury and government agencies 110,225 — (921 ) 109,304 Foreign government 1,008 — (2 ) 1,006 Total 148,867 3 (1,262 ) 147,608 Long-term marketable securities: Corporate bonds 28,146 — (810 ) 27,336 Asset-backed securities 14,435 — (132 ) 14,303 U.S. Treasury and government agencies 18,076 — (509 ) 17,567 Total 60,657 — (1,451 ) 59,206 Total $ 322,012 $ 7 $ (2,713 ) $ 319,306 (1) Excludes cash of $61.2 million. December 31, 2021 Amortized Cost Unrealized Gains Unrealized Losses Fair Value (in thousands) Cash equivalents: (1) Money market funds $ 75,258 $ — $ — $ 75,258 Commercial paper 850 — — 850 Total 76,108 — — 76,108 Short-term marketable securities: (2) Commercial paper 18,046 — — 18,046 Corporate bonds 28,869 101 (7 ) 28,963 Asset-backed securities 3,952 — — 3,952 U.S. Treasury and government agencies 217,160 2 (163 ) 216,999 Total 268,027 103 (170 ) 267,960 Long-term marketable securities: Corporate bonds 57,762 160 (182 ) 57,740 Asset-backed securities 14,941 6 (36 ) 14,911 U.S. Treasury and government agencies 37,664 — (136 ) 37,528 Foreign government 1,007 12 — 1,019 Total 111,374 178 (354 ) 111,198 Total $ 455,509 $ 281 $ (524 ) $ 455,266
Debt Securities, Available-for-Sale, Unrealized Loss Position, Fair Value [Table Text Block]	December 31, 2022 Less than 12 months 12 months or longer Total Fair value Gross unrealized losses Fair value Gross unrealized losses Fair value Gross unrealized losses (in thousands) Foreign government agencies $ 998 $ (2 ) $ - $ - $ 998 $ (2 ) Asset-backed securities 13,365 (124 ) 1,652 (10 ) 15,017 (134 ) Corporate bonds 33,800 (389 ) 26,326 (758 ) 60,126 (1,147 ) U.S. Treasury and government agencies 89,802 (1,175 ) 36,833 (255 ) 126,635 (1,430 ) Total $ 137,965 $ (1,690 ) $ 64,811 $ (1,023 ) $ 202,776 $ (2,713 ) December 31, 2021 Less than 12 months 12 months or longer Total Fair value Gross unrealized losses Fair value Gross unrealized losses Fair value Gross unrealized losses (in thousands) Asset-backed securities $ 15,867 $ (36 ) $ - $ - $ 15,867 $ (36 ) Corporate bonds 54,143 (189 ) - - 54,143 (189 ) U.S. Treasury and government agencies 241,816 (299 ) - - 241,816 (299 ) Total $ 311,826 $ (524 ) $ - $ - $ 311,826 $ (524 )
Investments Classified by Contractual Maturity Date [Table Text Block]	December 31, 2022 Amortized Cost Fair Value (in thousands) Due within One Year $ 260,629 $ 259,376 Due after One Year through Two Years 43,528 42,272 Mature over Two Years 2,694 2,631 Asset-backed securities 15,161 15,027 Total $ 322,012 $ 319,306
Schedule of Derivative Instruments [Table Text Block]	December 31, 2022 2021 (in thousands) Assets Foreign currency forward contracts designated as cash flow hedge $ 1,041 $ 1,737 Foreign currency forward contracts not designated as hedging instruments 452 1,599 Total $ 1,493 $ 3,336 Liabilities Foreign currency forward contracts designated as cash flow hedge $ (2,634 ) $ (181 ) Foreign currency forward contracts not designated as hedging instruments (2,045 ) (207 ) Total $ (4,679 ) $ (388 )
Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block]	December 31, 2022 2021 (in thousands) Foreign currency forward contracts designated as cash flow hedge $ 10,623 $ 9,486 Foreign currency forward contracts not designated as hedging instruments 69,972 56,114 Total $ 80,595 $ 65,600
Derivative Instruments, Gain (Loss) [Table Text Block]	Year Ended December 31, 2022 2021 2020 (in thousands) Net gains (losses) from non-designated forward contracts $ 5,093 $ 2,452 $ (1,634 ) Other foreign currency transactions gains (losses) (6,864 ) (2,749 ) 1,894 Total foreign exchange gains (losses), net (1,771 ) (297 ) 260 Other expenses (267 ) (276 ) (253 ) Other income (expense), net $ (2,038 ) $ (573 ) $ 7

Note 3 - Accumulated Other Co_2

Note 3 - Accumulated Other Comprehensive Income (Loss) (Tables)	12 Months Ended
	Dec. 31, 2022
Notes Tables
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	Available-for-sale debt securities Cash flow hedges Total (in thousands) Balances at December 31, 2019 $ 822 $ 340 $ 1,162 Change in unrealized gains (losses) during the period 549 (2,099 ) (1,550 ) Net gains reclassified into income during the period (25 ) (564 ) (589 ) Income tax benefit (provision) (122 ) 615 493 Net change during the period 402 (2,048 ) (1,646 ) Balances at December 31, 2020 1,224 (1,708 ) (484 ) Change in unrealized gains (losses) during the period (1,854 ) 2,837 983 Net losses reclassified into income during the period 22 933 955 Income tax benefit (provision) 423 (870 ) (447 ) Net change during the period (1,409 ) 2,900 1,491 Balances at December 31, 2021 (185 ) 1,192 1,007 Change in unrealized gains (losses) during the period (2,462 ) 581 (1,881 ) Net gains reclassified into income during the period — (1,147 ) (1,147 ) Income tax benefit (provision) (58 ) 132 74 Net change during the period (2,520 ) (434 ) (2,954 ) Balances at December 31, 2022 $ (2,705 ) $ 758 $ (1,947 )
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]	Year Ended December 31, 2022 2021 2020 (in thousands) Reclassification of AOCI - Available-for-sale debt securities Other income (expense), net $ — $ (22 ) $ 25 Reclassification of AOCI - Cash flow hedges Revenues $ 1,897 $ (1,667 ) $ 960 Cost of revenues (169 ) 149 (76 ) Research and development (478 ) 492 (264 ) Sales and marketing (30 ) 28 (20 ) General and administrative (73 ) 65 (36 ) Total $ 1,147 $ (933 ) $ 564

Note 4 - Property and Equipme_2

Note 4 - Property and Equipment, Net (Tables)	12 Months Ended
	Dec. 31, 2022
Notes Tables
Property, Plant and Equipment [Table Text Block]	December 31, 2022 2021 (in thousands) Computer equipment $ 173,832 $ 161,809 Computer software 25,808 25,807 Leasehold improvements 21,009 21,092 Scanner appliances 15,696 16,510 Furniture, fixtures and equipment 6,524 6,479 Total property and equipment 242,869 231,697 Less: accumulated depreciation and amortization (195,441 ) (169,843 ) Property and equipment, net $ 47,428 $ 61,854

Note 5 - Revenue From Contrac_2

Note 5 - Revenue From Contracts With Customers (Tables)	12 Months Ended
	Dec. 31, 2022
Notes Tables
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table Text Block]	(in thousands) 2023 $ 158,607 2024 82,902 2025 27,874 2026 1,994 2027 692 2028 and thereafter 62 Total $ 272,131
Disaggregation of Revenue [Table Text Block]	Year Ended December 31, 2022 2021 2020 (in thousands) Direct $ 285,382 $ 243,389 $ 211,897 Partner 204,341 167,783 151,066 Total $ 489,723 $ 411,172 $ 362,963
Contract With Customer, Commission Asset Balances [Table Text Block]	December 31, 2022 2021 (in thousands) Current $ 5,018 $ 4,223 Noncurrent $ 10,090 $ 8,391

Note 7 - Intangible Assets, N_2

Note 7 - Intangible Assets, Net (Tables)	12 Months Ended
	Dec. 31, 2022
Notes Tables
Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block]	December 31, 2022 (in thousands) Weighted Average Life (Years) Weighted Average Remaining Life (Years) Cost Accumulated Amortization Net Book Value Developed technology 4.6 1.4 $ 40,141 $ (27,860 ) $ 12,281 Patent licenses 14.0 1.7 1,387 (1,221 ) 166 Non-compete agreements 2.0 — 500 (500 ) — Assembled workforce 2.0 1.7 359 (45 ) 314 Total intangibles subject to amortization $ 42,387 $ (29,626 ) $ 12,761 Intangible assets not subject to amortization 40 Total intangible assets, net $ 12,801 December 31, 2021 (in thousands) Weighted Average Life (Years) Weighted Average Remaining Life (Years) Cost Accumulated Amortization Net Book Value Developed technology 4.5 0.9 $ 28,556 $ (22,463 ) $ 6,093 Patent licenses 14.0 2.7 1,387 (1,121 ) 266 Non-compete agreements 2.0 0.6 500 (354 ) 146 Total intangibles subject to amortization $ 30,443 $ (23,938 ) 6,505 Intangible assets not subject to amortization 40 Total intangible assets, net $ 6,545
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	(in thousands) 2023 $ 3,085 2024 2,904 2025 2,557 2026 2,477 2027 1,738 Total expected future amortization expense $ 12,761

Note 8 - Leases (Tables)

Note 8 - Leases (Tables)	12 Months Ended
	Dec. 31, 2022
Notes Tables
Lessee, Operating Lease, Supplemental Cash Flow Disclosure [Table Text Block]	Year Ended December 31, 2022 2021 2020 (in thousands) Cash payments included in the measurement of lease liabilities $ 15,751 $ 14,646 $ 13,403 Lease liabilities arising from obtaining right-of-use assets $ 8,669 $ 4,110 $ 15,837
Lessee, Weighted Average Remaining Lease Term and Weighted Average Discount Rate [Table Text Block]	December 31, 2022 2021 Weighted average remaining lease term (years) 3.7 4.5 Weighted average discount rate 5.2 % 4.8 %
Lessee, Operating Lease, Liability, Maturity [Table Text Block]	(in thousands) 2023 $ 14,940 2024 13,460 2025 7,715 2026 4,498 2027 4,353 2028 and thereafter 1,465 Total minimum lease payments 46,431 Less: interest (4,250 ) Present value of net minimum lease payments 42,181 Less: lease liabilities, current (13,060 ) Lease liabilities, noncurrent $ 29,121

Note 9 - Commitments and Cont_2

Note 9 - Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2022
Notes Tables
Contractual Obligation, Fiscal Year Maturity [Table Text Block]	(in thousands) 2023 $ 12,862 2024 13,261 2025 12,597 2026 11,591 2027 14,091 Total purchase commitments $ 64,402

Note 10 - Stockholders' Equit_2

Note 10 - Stockholders' Equity and Stock-based Compensation (Tables)	12 Months Ended
	Dec. 31, 2022
Notes Tables
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]	Year Ended December 31, 2022 2021 2020 (in thousands) Cost of revenues $ 5,305 $ 3,782 $ 2,767 Research and development 14,585 10,750 13,502 Sales and marketing 9,837 6,323 5,785 General and administrative 23,681 46,724 17,981 Total stock-based compensation $ 53,408 $ 67,579 $ 40,035
Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]	Year Ended December 31, 2022 2021 2020 Expected term (in years) 4.3 to 4.4 5.2 to 5.5 4.5 to 5.5 Volatility 40% to 43% 38% to 41% 38% to 43% Risk-free interest rate 1.7% to 4.2% 0.5% to 1.2% 0.3% to 1.4% Dividend yield — — —
Share-Based Payment Arrangement, Option, Activity [Table Text Block]	Outstanding Options Weighted Average Exercise Price Weighted Average Remaining Contractual Life Aggregate Intrinsic Value (in thousands) (Years) (in thousands) Balance as of December 31, 2021 1,838 $ 66.05 6.0 $ 130,791 Granted 593 $ 133.43 Exercised (468 ) $ 52.29 Canceled (156 ) $ 114.21 Balance as of December 31, 2022 1,807 $ 87.59 6.5 $ 58,024 Vested and expected to vest - December 31, 2022 1,583 $ 81.95 6.1 $ 57,690 Exercisable - December 31, 2022 981 $ 56.25 4.4 $ 56,062
Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block]	Outstanding RSUs Weighted Average Grant Date Fair Value (in thousands) Balance as of December 31, 2021 952 (1) $ 105.20 Granted 711 (2) $ 137.50 Vested (330 ) $ 100.27 Forfeited (150 ) $ 117.63 Balance as of December 31, 2022 1,183 (3) $ 124.42 Outstanding and expected to vest - December 31, 2022 929 $ 122.55
Schedule of Share-Based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block]	Year Ended December 31, 2022 Expected term (in years) 0.5 Volatility 41.1% to 50.1% Risk-free interest rate 0.7% to 3.1% Dividend yield —
Share Repurchase Program [Table Text Block]	Announcement Date Authorized Dollar Value (in millions) February 12, 2018 $ 100.0 October 30, 2018 100.0 October 30, 2019 100.0 May 7, 2020 100.0 February 10, 2021 100.0 November 3, 2021 200.0 May 4, 2022 200.0 Total as of December 31, 2022 $ 900.0

Note 12 - Income Taxes (Tables)

Note 12 - Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2022
Notes Tables
Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block]	Year Ended December 31, 2022 2021 2020 (in thousands) Domestic $ 122,013 $ 80,472 $ 94,099 Foreign 11,687 8,925 7,938 Income before income taxes $ 133,700 $ 89,397 $ 102,037
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	Year Ended December 31, 2022 2021 2020 (in thousands) Current Federal $ 35,286 $ 20,135 $ 1,944 State 6,269 4,324 1,438 Foreign 4,606 3,701 3,571 Current income tax provision 46,161 28,160 6,953 Deferred Federal (17,097 ) (7,342 ) 4,239 State (3,055 ) (1,722 ) 26 Foreign (301 ) (659 ) (753 ) Deferred income tax provision (benefit) (20,453 ) (9,723 ) 3,512 Income tax provision $ 25,708 $ 18,437 $ 10,465
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	Year Ended December 31, 2022 2021 2020 Federal statutory rate 21.0 % 21.0 % 21.0 % State taxes 2.3 3.1 1.6 Stock-based compensation 3.4 10.3 4.8 Excess tax benefits related to stock-based compensation (5.2 ) (5.4 ) (13.8 ) Foreign source income 3.8 0.4 0.2 Change in valuation allowance 0.3 0.2 0.8 Foreign-derived intangible income deduction (4.9 ) (7.0 ) (1.7 ) Federal and state research and development credit (1.3 ) (1.9 ) (2.6 ) Other (0.2 ) (0.1 ) — Income tax provision 19.2 % 20.6 % 10.3 %
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]	December 31, 2022 2021 (in thousands) Deferred tax assets Research and development credit carryforwards $ 10,957 $ 10,743 Accrued liabilities 3,677 1,655 Deferred revenues 5,766 7,250 Operating lease liabilities 10,667 11,777 Intangible assets 3,465 2,988 Stock-based compensation 4,691 4,085 Capitalized R&D 30,234 9,389 Other 2,195 3,920 Gross deferred tax assets 71,652 51,807 Valuation allowance (12,476 ) (11,364 ) Total deferred tax assets 59,176 40,443 Deferred tax liabilities Fixed assets (1,745 ) (3,320 ) Operating leases - right of use asset (8,359 ) (9,010 ) Deferred commissions (3,660 ) (3,026 ) Total deferred tax liabilities (13,764 ) (15,356 ) Net deferred tax assets $ 45,412 $ 25,087
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]	Year Ended December 31, 2022 2021 2020 (in thousands) Unrecognized tax benefits beginning balance $ 9,676 $ 8,855 $ 7,778 Gross increase for tax positions of prior years 89 — 4 Gross decrease for tax positions of prior years — (25 ) — Gross increase for tax positions of current year 777 846 1,258 Lapse of statute of limitations — — (185 ) Total unrecognized tax benefits $ 10,542 $ 9,676 $ 8,855

Note 13 - Segment and Geograp_2

Note 13 - Segment and Geographic Area Information (Tables)	12 Months Ended
	Dec. 31, 2022
Notes Tables
Schedule of Revenue from External Customers and Long-Lived Assets, by Geographical Areas [Table Text Block]	Year Ended December 31, 2022 2021 2020 (in thousands) United States $ 292,291 $ 252,428 $ 229,484 Foreign 197,432 158,744 133,479 Total revenues $ 489,723 $ 411,172 $ 362,963 December 31, 2022 2021 (in thousands) United States $ 58,775 $ 66,440 India 16,057 20,401 Rest of world 6,348 12,029 Total Long-lived Assets $ 81,180 $ 98,870

Note 14 - Net Income Per Share

Note 14 - Net Income Per Share (Tables)	12 Months Ended
	Dec. 31, 2022
Notes Tables
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	Year Ended December 31, 2022 2021 2020 (in thousands, except per share data) Numerator: Net income $ 107,992 $ 70,960 $ 91,572 Denominator: Basic weighted average shares 38,453 39,030 39,167 Effect of potentially dilutive shares: Stock options 672 863 1,262 Restricted stock units 216 224 311 Employee stock purchase plan 3 1 — Diluted weighted average shares $ 39,344 $ 40,118 $ 40,740 Net income per share: Basic $ 2.81 $ 1.82 $ 2.34 Diluted $ 2.74 $ 1.77 $ 2.25
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]	Year Ended December 31, 2022 2021 2020 (in thousands) Stock options 686 534 532 Restricted stock units 90 61 52 Employee stock purchase plan 5 — — Total anti-dilutive shares 781 595 584

Note 1 - The Company and Summ_2

Note 1 - The Company and Summary of Significant Accounting Policies (Details Textual) $ in Thousands	12 Months Ended
	Dec. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Restricted Cash, Total	$ 2,700
Accounts Receivable, after Allowance for Credit Loss, Total	121,800	$ 109,000	$ 100,200
Proceeds from Dividends Received	0
Payments for Advance to Affiliate				$ 600
Impairment, Long-Lived Asset, Held-for-Use, Total	$ 0
Number of Reporting Units	1
Capitalized Contract Cost, Amortization Period (Year)	5 years
Advertising Expense	$ 3,300	2,100	$ 1,600
Minimum [Member]
Property, Plant and Equipment, Useful Life (Year)	3 years
Maximum [Member]
Property, Plant and Equipment, Useful Life (Year)	5 years
Preferred Stock [Member]
Investments, Total					$ 2,500
Other than Temporary Impairment Losses, Investments, Total					$ 0
Cash Held in Escrow With Blue Hexagon Acquisition [Member]
Restricted Cash, Total	$ 1,500
Security Deposits [Member] | Letter of Credit [Member]
Restricted Cash, Total	$ 1,200	$ 1,200

Note 2 - Fair Value of Financ_3

Note 2 - Fair Value of Financial Instruments (Details Textual) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Cash	$ 61.2	$ 61.2
Foreign Exchange Contracts for GBP and Euro [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months	3.2
Foreign Exchange Contracts for INR [Member] | Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months	$ (1.6)

Note 2 - Fair Value of Financ_4

Note 2 - Fair Value of Financial Instruments - Fair Value Hierarchy (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Foreign currency forward contracts	$ 4,679	$ 388
Fair Value, Recurring [Member]
Money market funds	82,701	75,258
U.S. Treasury and government agencies	156,662	254,527
Foreign government	1,006	1,019
Corporate bonds	63,910	86,703
Asset-backed securities	15,027	18,863
Foreign currency forward contracts	1,493	3,336
Total assets	320,799	458,602
Foreign currency forward contracts	4,679	388
Total liabilities	4,679	388
Commercial paper		18,896
Fair Value, Inputs, Level 1 [Member] | Fair Value, Recurring [Member]
Money market funds	82,701	75,258
U.S. Treasury and government agencies	0	0
Foreign government	0	0
Corporate bonds	0	0
Asset-backed securities	0	0
Foreign currency forward contracts	0	0
Total assets	82,701	75,258
Foreign currency forward contracts	0	0
Total liabilities	0	0
Commercial paper		0
Fair Value, Inputs, Level 2 [Member] | Fair Value, Recurring [Member]
Money market funds	0	0
U.S. Treasury and government agencies	156,662	254,527
Foreign government	1,006	1,019
Corporate bonds	63,910	86,703
Asset-backed securities	15,027	18,863
Foreign currency forward contracts	1,493	3,336
Total assets	238,098	383,344
Foreign currency forward contracts	4,679	388
Total liabilities	$ 4,679	388
Commercial paper		$ 18,896

Note 2 - Fair Value of Financ_5

Note 2 - Fair Value of Financial Instruments - Cash and Cash Equivalents (Details) - USD ($) $ in Thousands		Dec. 31, 2022	Dec. 31, 2021
cash equivalents, amortized cost		$ 112,488	$ 76,108
Cash equivalent, fair value		112,492	76,108
cash equivalents, amortized cost		112,488	76,108
Cash equivalents unrealized gains		4
cash equivalents, unrealized loss		0
Short-term marketable securities, amortization cost		148,867	268,027
Unrealized gains, short-term securities		3	103
Short-term marketable securities, unrealized loss		(1,262)	(170)
Short-term marketable securities		147,608	267,960
Unrealized gains, long-term securities		0	178
Long-term marketable securities, amortization cost		60,657	111,374
Long-term marketable securities, unrealized loss		(1,451)	(354)
Long-term marketable securities		59,206	111,198
Cash and cash equivalents and marketable securities, amortization cost		322,012	455,509
Unrealized gains, securities		7	281
Unrealized loss, securities		(2,713)	(524)
Cash and cash equivalents and short-term and long-term Marketable Securities, fair value		319,306	455,266
Corporate Debt Securities [Member]
Short-term marketable securities, amortization cost		36,908	28,869
Unrealized gains, short-term securities		3	101
Short-term marketable securities, unrealized loss		(337)	(7)
Short-term marketable securities		36,574	28,963
Unrealized gains, long-term securities		0	160
Long-term marketable securities, amortization cost		28,146	57,762
Long-term marketable securities, unrealized loss		(810)	(182)
Long-term marketable securities		27,336	57,740
Commercial Paper, Not Included with Cash and Cash Equivalents [Member]
Short-term marketable securities, amortization cost	[1]		18,046
Unrealized gains, short-term securities			0
Short-term marketable securities, unrealized loss			0
Short-term marketable securities			18,046
Asset-Backed Securities [Member]
Short-term marketable securities, amortization cost		726	3,952
Unrealized gains, short-term securities		0	0
Short-term marketable securities, unrealized loss		(2)	0
Short-term marketable securities		724	3,952
Unrealized gains, long-term securities		0	6
Long-term marketable securities, amortization cost		14,435	14,941
Long-term marketable securities, unrealized loss		(132)	(36)
Long-term marketable securities		14,303	14,911
US Government Agencies Debt Securities [Member]
Short-term marketable securities, amortization cost		110,225	217,160
Unrealized gains, short-term securities			2
Short-term marketable securities, unrealized loss		(921)	(163)
Short-term marketable securities		109,304	216,999
Unrealized gains, long-term securities		0	0
Long-term marketable securities, amortization cost		18,076	37,664
Long-term marketable securities, unrealized loss		(509)	(136)
Long-term marketable securities		17,567	37,528
Foreign Government Agencies [Member]
Short-term marketable securities, amortization cost		1,008
Short-term marketable securities, unrealized loss		(2)
Short-term marketable securities		1,006
Unrealized gains, long-term securities		0	12
Long-term marketable securities, amortization cost			1,007
Long-term marketable securities, unrealized loss			0
Long-term marketable securities			1,019
Money Market Funds [Member]
cash equivalents, amortized cost	[2]	82,701	75,258
Cash equivalent, fair value		82,701	75,258	[2]
cash equivalents, amortized cost	[2]	82,701	75,258
US Government Corporations and Agencies Securities [Member]
cash equivalents, amortized cost		29,787
Cash equivalent, fair value		29,791
cash equivalents, amortized cost		29,787
Cash equivalents unrealized gains		4
cash equivalents, unrealized loss		$ 0
Commercial Paper [Member]
cash equivalents, amortized cost			850
Cash equivalent, fair value			850
cash equivalents, amortized cost			$ 850
[1]Revised for correction of classification of amounts and security types disclosed in Note 2 to the consolidated financial statements in our Annual Report on Form 10-K for the fiscal year ended December 31, 2021.[2]Excludes cash of $61.2 million.

Note 2 - Fair Value of Financ_6

Note 2 - Fair Value of Financial Instruments - Summary of Securities in Unrealized Loss Positions (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Less than 12 Months, fair value	$ 137,965	$ 311,826
Less than 12 Months, Accumulated Loss	(1,690)	(524)
12 Months or Longer, fair value	64,811	0
12 Months or Longer, Accumulated Loss	(1,023)	0
Unrealized Loss Position, fair value	202,776	311,826
Unrealized Loss Position, accumulated loss	(2,713)	(524)
Foreign Government Agencies [Member]
Less than 12 Months, fair value	998
Less than 12 Months, Accumulated Loss	(2)
12 Months or Longer, fair value	0
12 Months or Longer, Accumulated Loss	0
Unrealized Loss Position, fair value	998
Unrealized Loss Position, accumulated loss	(2)
Asset-Backed Securities [Member]
Less than 12 Months, fair value	13,365	15,867
Less than 12 Months, Accumulated Loss	(124)	(36)
12 Months or Longer, fair value	1,652	0
12 Months or Longer, Accumulated Loss	(10)	0
Unrealized Loss Position, fair value	15,017	15,867
Unrealized Loss Position, accumulated loss	(134)	(36)
Corporate Debt Securities [Member]
Less than 12 Months, fair value	33,800	54,143
Less than 12 Months, Accumulated Loss	(389)	(189)
12 Months or Longer, fair value	26,326	0
12 Months or Longer, Accumulated Loss	(758)	0
Unrealized Loss Position, fair value	60,126	54,143
Unrealized Loss Position, accumulated loss	(1,147)	(189)
US Government Agencies Debt Securities [Member]
Less than 12 Months, fair value	89,802	241,816
Less than 12 Months, Accumulated Loss	(1,175)	(299)
12 Months or Longer, fair value	36,833	0
12 Months or Longer, Accumulated Loss	(255)	0
Unrealized Loss Position, fair value	126,635	241,816
Unrealized Loss Position, accumulated loss	$ (1,430)	$ (299)

Note 2 - Fair Value of Financ_7

Note 2 - Fair Value of Financial Instruments - Summary of the Fair Value of Marketable Securities (Details) $ in Thousands	Dec. 31, 2022 USD ($)
Due within One Year, Amortized Cost	$ 260,629
Due within One Year	259,376
Due after One Year through Two Years, Amortized Cost	43,528
Due after One Year through Two Years	42,272
Mature over Two Years, Amortized Cost	2,694
Mature over Two Years	2,631
Amortized Cost	322,012
Available-for-Sale, Total	319,306
Asset-Backed Securities [Member]
Amortized Cost	15,161
Available-for-Sale, Total	$ 15,027

Note 2 - Fair Value of Financ_8

Note 2 - Fair Value of Financial Instruments - Summary of Derivative Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Foreign currency forward contracts	$ 1,493	$ 3,336
Foreign currency forward contracts	(4,679)	(388)
Designated as Hedging Instrument [Member]
Foreign currency forward contracts	1,041	1,737
Foreign currency forward contracts	(2,634)	(181)
Not Designated as Hedging Instrument [Member]
Foreign currency forward contracts	452	1,599
Foreign currency forward contracts	$ (2,045)	$ (207)

Note 2 - Fair Value of Financ_9

Note 2 - Fair Value of Financial Instruments - Summary of National Amount of Derivative Financial Instruments (Details) - Foreign Exchange Contract [Member] - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Derivative, Notional Amount	$ 80,595	$ 65,600
Designated as Hedging Instrument [Member] | Cash Flow Hedging [Member]
Derivative, Notional Amount	10,623	9,486
Not Designated as Hedging Instrument [Member]
Derivative, Notional Amount	$ 69,972	$ 56,114

Note 2 - Fair Value of Finan_10

Note 2 - Fair Value of Financial Instruments - Amounts Recognized In Statement of Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Net gains (losses) from non-designated forward contracts	$ 5,093	$ 2,452	$ (1,634)
Other foreign currency transactions gains (losses)	(6,864)	(2,749)	1,894
Total foreign exchange gains (losses), net	(1,771)	(297)	260
Other expenses	(267)	(276)	(253)
Other income (expense), net	$ (2,038)	$ (573)	$ 7

Note 3 - Accumulated Other Co_3

Note 3 - Accumulated Other Comprehensive Income (Loss) - Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Balance	$ 436,714	$ 404,482	$ 386,803
Other comprehensive income (loss), net of tax	(2,954)	1,491	(1,646)
Balance	289,129	436,714	404,482
AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member]
Balance	(185)	1,224	822
Change in unrealized gains (losses) during the period	(2,462)	(1,854)	549
Net gains reclassified into income during the period	0	22	(25)
Income tax benefit (provision)	(58)	423	(122)
Other comprehensive income (loss), net of tax	(2,520)	(1,409)	402
Balance	(2,705)	(185)	1,224
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Balance	1,192	(1,708)	340
Change in unrealized gains (losses) during the period	581	2,837	(2,099)
Net gains reclassified into income during the period	(1,147)	933	(564)
Income tax benefit (provision)	132	(870)	615
Other comprehensive income (loss), net of tax	(434)	2,900	(2,048)
Balance	758	1,192	(1,708)
AOCI Attributable to Parent [Member]
Balance	1,007	(484)	1,162
Change in unrealized gains (losses) during the period	(1,881)	983	(1,550)
Net gains reclassified into income during the period	(1,147)	955	(589)
Income tax benefit (provision)	74	(447)	493
Other comprehensive income (loss), net of tax	(2,954)	1,491	(1,646)
Balance	$ (1,947)	$ 1,007	$ (484)

Note 3 - Accumulated Other Co_4

Note 3 - Accumulated Other Comprehensive Income (Loss) - Amounts Reclassified from AOCI (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Other income (expense), net	$ 2,038	$ 573	$ (7)
Revenues	489,723	411,172	362,963
Cost of revenues	102,788	89,439	79,226
Research and development	101,186	81,289	72,548
Sales and marketing	97,221	76,487	67,965
General and administrative	57,981	76,274	46,570
Reclassification out of Accumulated Other Comprehensive Income [Member] | AOCI, Accumulated Gain (Loss), Debt Securities, Available-for-Sale, Parent [Member]
Other income (expense), net	0	(22)	25
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member]
Revenues	1,897	(1,667)	960
Cost of revenues	(169)	149	(76)
Research and development	(478)	492	(264)
Sales and marketing	(30)	28	(20)
General and administrative	(73)	65	(36)
Total	$ 1,147	$ (933)	$ 564

Note 4 - Property and Equipme_3

Note 4 - Property and Equipment, Net (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment, Net, Total	$ 47,428	$ 61,854
Depreciation, Depletion And Amortization, Excluding Intangible Asset Amortization	28,200	28,500	$ 26,100
Scanner Appliances and Other Computer Equipment Subject To Subscription [Member]
Property, Plant and Equipment, Net, Total	6,700	5,300
Scanner Appliances and Other Computer Equipment Not Placed In Service [Member]
Property, Plant and Equipment, Net, Total	$ 4,000	$ 1,300

Note 4 - Property and Equipme_4

Note 4 - Property and Equipment, Net - Property and Equipment, Net (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Property and equipment and finance lease	$ 242,869	$ 231,697
Less: accumulated depreciation and amortization	(195,441)	(169,843)
Property and equipment and finance lease, net	47,428	61,854
Computer Equipment [Member]
Property and equipment and finance lease	173,832	161,809
Computer Software, Intangible Asset [Member]
Property and equipment and finance lease	25,808	25,807
Leasehold Improvements [Member]
Property and equipment and finance lease	21,009	21,092
Scanner Appliances [Member]
Property and equipment and finance lease	15,696	16,510
Furniture and Fixtures [Member]
Property and equipment and finance lease	$ 6,524	$ 6,479

Note 5 - Revenue From Contrac_3

Note 5 - Revenue From Contracts With Customers (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Contract with Customer, Liability, Revenue Recognized	$ 254,900	$ 211,000
Contract with Customer, Liability, Total		290,600	$ 244,000
Amortization of Deferred Sales Commissions	5,000	4,000	3,000
Capitalized Contract Cost, Impairment Loss	$ 0	$ 0	$ 0

Note 5 - Revenue from Contrac_4

Note 5 - Revenue from Contracts with Customers - Expected Revenue from All Remaining Performance Obligations (Details) $ in Thousands	Dec. 31, 2022 USD ($)
Remaining performance obligations	$ 272,131

Note 5 - Revenue from Contrac_5

Note 5 - Revenue from Contracts with Customers - Expected Revenue from All Remaining Performance Obligations 2 (Details) $ in Thousands	Dec. 31, 2022 USD ($)
Remaining performance obligations	$ 272,131
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2023-01-01
Remaining performance obligations, period (Year)	1 year
Remaining performance obligations	$ 158,607
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2024-01-01
Remaining performance obligations, period (Year)	1 year
Remaining performance obligations	$ 82,902
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2025-01-01
Remaining performance obligations, period (Year)	1 year
Remaining performance obligations	$ 27,874
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01
Remaining performance obligations, period (Year)	1 year
Remaining performance obligations	$ 1,994
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2027-01-01
Remaining performance obligations, period (Year)	1 year
Remaining performance obligations	$ 692
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2028-01-01
Remaining performance obligations, period (Year)	1 year
Remaining performance obligations	$ 62

Note 5 - Revenue From Contrac_6

Note 5 - Revenue From Contracts With Customers - Revenue by Sales Channel (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenues	$ 489,723	$ 411,172	$ 362,963
Sales Channel, Directly to Consumer [Member]
Revenues	285,382	243,389	211,897
Sales Channel, Through Intermediary [Member]
Revenues	$ 204,341	$ 167,783	$ 151,066

Note 5 - Revenue From Contrac_7

Note 5 - Revenue From Contracts With Customers - Capitalized Cost to Obtain Contracts, Current and Noncurrent (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Current	$ 5,018	$ 4,223
Noncurrent	$ 10,090	$ 8,391

Note 6 - Acquisitions (Details

Note 6 - Acquisitions (Details Textual) - USD ($) $ in Millions					12 Months Ended
	Oct. 04, 2022	Aug. 19, 2022	Aug. 19, 2021	Jul. 24, 2020	Dec. 31, 2022	Dec. 31, 2021
Developed Technology Rights [Member]
Finite-Lived Intangible Asset, Useful Life (Year)			5 years		4 years 7 months 6 days	4 years 6 months
Finite-lived Intangible Assets Acquired			$ 1.2
Payments to Acquire Intangible Assets		$ 0.1	$ 1.1	$ 1.3
Assembled Workforce [Member]
Finite-Lived Intangible Asset, Useful Life (Year)					2 years
Noncompete Agreements [Member]
Finite-Lived Intangible Asset, Useful Life (Year)					2 years	2 years
Blue Hexagon Inc [Member]
Asset Acquisition, Consideration Transferred, Total	$ 10
Payments to Acquire Productive Assets, Total	8.5
Asset Acquisition, Consideration Transferred, Payable	1.5
Asset Acquisition, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Deferred Revenue	1.4
Asset Acqusition, Acquisition Related Costs	0.6
Blue Hexagon Inc [Member] | Developed Technology Rights [Member]
Asset Acquistion, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 11.5
Finite-Lived Intangible Asset, Useful Life (Year)	5 years
Blue Hexagon Inc [Member] | Assembled Workforce [Member]
Asset Acquistion, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles	$ 0.4
Finite-Lived Intangible Asset, Useful Life (Year)	2 years
Spell Security [Member]
Asset Acquisition, Consideration Transferred, Total				1.5
Asset Acquisition, Consideration Transferred, Contingent Consideration				0.2
Spell Security [Member] | Developed Technology Rights [Member]
Finite-lived Intangible Assets Acquired				$ 1
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life (Year)				4 years
Spell Security [Member] | Noncompete Agreements [Member]
Finite-lived Intangible Assets Acquired				$ 0.5
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life (Year)				2 years

Note 7 - Intangible Assets, N_3

Note 7 - Intangible Assets, Net (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Amortization of Intangible Assets	$ 5.7	$ 6.7	$ 6.3

Note 7 - Intangible Assets, N_4

Note 7 - Intangible Assets, Net - Carrying Value of Intangible Assets (Details) - USD ($) $ in Thousands		12 Months Ended
	Aug. 19, 2021	Dec. 31, 2022	Dec. 31, 2021
Cost		$ 42,387	$ 30,443
Amortization of intangible assets		(29,626)	(23,938)
Net Book Value		12,761	6,505
Total intangible assets, net		12,801	6,545
Intangible Assets Not Subject to Amortization [Member]
Intangible assets not subject to amortization		$ 40	$ 40
Developed Technology Rights [Member]
Weighted Average Life (Year)	5 years	4 years 7 months 6 days	4 years 6 months
Weighted Average Remaining Life (Year)		1 year 4 months 24 days	10 months 24 days
Cost		$ 40,141	$ 28,556
Amortization of intangible assets		(27,860)	(22,463)
Net Book Value		$ 12,281	$ 6,093
Patents [Member]
Weighted Average Life (Year)		14 years	14 years
Weighted Average Remaining Life (Year)		1 year 8 months 12 days	2 years 8 months 12 days
Cost		$ 1,387	$ 1,387
Amortization of intangible assets		(1,221)	(1,121)
Net Book Value		$ 166	$ 266
Noncompete Agreements [Member]
Weighted Average Life (Year)		2 years	2 years
Weighted Average Remaining Life (Year)			7 months 6 days
Cost		$ 500	$ 500
Amortization of intangible assets		(500)	(354)
Net Book Value		$ 0	$ 146
Assembled Workforce [Member]
Weighted Average Life (Year)		2 years
Weighted Average Remaining Life (Year)		1 year 8 months 12 days
Cost		$ 359
Amortization of intangible assets		(45)
Net Book Value		$ 314

Note 7 - Intangible Assets, N_5

Note 7 - Intangible Assets, Net - Expected Amortization Expense in Future Periods (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
2023	$ 3,085
2024	2,904
2025	2,557
2026	2,477
2027	1,738
Total expected future amortization expense	$ 12,761	$ 6,505

Note 8 - Leases (Details Textua

Note 8 - Leases (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Operating Lease, Expense	$ 14.9	$ 16.8	$ 16.7

Note 8 - Leases - Supplemental

Note 8 - Leases - Supplemental Cash Flow Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash payments included in the measurement of lease liabilities	$ 15,751	$ 14,646	$ 13,403
Lease liabilities arising from obtaining right-of-use assets	$ 8,669	$ 4,110	$ 15,837

Note 8 - Leases - Weighted Aver

Note 8 - Leases - Weighted Average Remaining Lease Term and Weighted Average Discount Rate (Details)	Dec. 31, 2022	Dec. 31, 2021
Weighted average remaining lease term (Year)	3 years 8 months 12 days	4 years 6 months
Weighted average discount rate	5.20%	4.80%

Note 8 - Leases - Minimum Annua

Note 8 - Leases - Minimum Annual Lease Payments (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
2023, operating leases	$ 14,940
2024, operating leases	13,460
2025, operating leases	7,715
2026, operating leases	4,498
2027, operating leases	4,353
2025 and thereafter, operating leases	1,465
Total minimum lease payments, operating leases	46,431
Less: interest	(4,250)
Present value of net minimum lease payments	42,181
Less: lease liabilities, current	(13,060)	$ (12,608)
Lease liabilities, noncurrent	$ 29,121	$ 35,914

Note 9 - Commitments and Cont_3

Note 9 - Commitments and Contingencies (Details Textual) $ in Millions	Dec. 31, 2022 USD ($)
Accrued Liabilties [Member]
Estimated Litigation Liability	$ 1.5

Note 9 - Commitment and Conting

Note 9 - Commitment and Contingencies - Remaining Purchase Commitments (Details) $ in Thousands	Dec. 31, 2022 USD ($)
2023	$ 12,862
2024	13,261
2025	12,597
2026	11,591
2027	14,091
Total purchase commitments	$ 64,402

Note 10 - Stockholders' Equit_3

Note 10 - Stockholders' Equity and Stock-based Compensation (Details Textual) $ / shares in Units, $ in Thousands												1 Months Ended		12 Months Ended			24 Months Ended
		Feb. 09, 2023 USD ($)	Oct. 27, 2022 shares	Jun. 08, 2022 shares	Oct. 28, 2021 shares	Jun. 09, 2021 shares	Apr. 27, 2021 shares	Mar. 19, 2021 shares	Dec. 10, 2020 shares	Nov. 02, 2019 shares	Dec. 21, 2018 shares	Feb. 28, 2021 shares	Feb. 29, 2020 shares	Dec. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2021 USD ($) $ / shares shares	Dec. 31, 2020 USD ($) $ / shares shares	Dec. 31, 2022 USD ($) $ / shares shares	Dec. 31, 2018 shares	Feb. 12, 2018 USD ($)	Oct. 03, 2012 $ / shares shares
Preferred Stock, Shares Authorized (in shares)														20,000,000	20,000,000		20,000,000			20,000,000
Preferred Stock, Par or Stated Value Per Share (in dollars per share) | $ / shares														$ 0.001	$ 0.001		$ 0.001			$ 0.001
Preferred Stock, Shares Issued (in shares)														0	0		0
Preferred Stock, Shares Outstanding, Ending Balance (in shares)														0	0		0
Share-Based Payment Arrangement, Expense, Tax Benefit | $														$ 8,300	$ 6,200	$ 5,300
Share-based Payment Arrangement, Accelerated Cost | $															27,300
Share-Based Payment Arrangement, Expense | $														$ 53,408	$ 67,579	$ 40,035
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares														$ 50.32	$ 41.23	$ 35.49
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value | $														$ 39,800	$ 42,500	$ 77,500
Stock Repurchased and Retired During Period, Shares (in shares)														2,500,000	1,100,000	1,300,000
Stock Repurchased and Retired During Period, Value | $														$ 317,300	$ 130,000	$ 126,700
Stock Repurchase Program, Remaining Authorized Repurchase Amount | $														154,500			$ 154,500
Stock Repurchase Program, Authorized Amount | $														900,000			900,000		$ 100,000
Subsequent Event [Member]
Stock Repurchase Program, Additional Authorized Amount | $		$ 100,000
Stock Repurchase Program, Authorized Amount | $		$ 1,000,000
Share-Based Payment Arrangement, Option [Member]
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total | $														$ 24,500			24,500
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)														2 years 10 months 24 days
Share-Based Payment Arrangement, Option [Member] | Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)									3 years
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)									224,000	124,000
Share-based Compensation Arrangement by Share-based Payment Award, Accelerated Vesting, Number (in shares)								348,000
Share-Based Payment Arrangement, Expense | $														$ 0	13,300	200
Restricted Stock Units (RSUs) [Member]
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total | $														$ 92,200			92,200
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)														2 years 9 months 18 days
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares)	[1]													330,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)	[2]													711,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value | $														$ 43,900	59,500	46,500
Restricted Stock Units (RSUs) [Member] | Time based Shared Based Compensation [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)									69,000	49,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares)											56,000
Share based Compensation Arrangement by Share based Payment Award, Vesting Period, Number Of Quarterly Periods									16	16	16
Share-based Compensation Arrangement by Share-based Payment Award, Accelerated Vesting, Number (in shares)								127,000
Restricted Stock Units (RSUs) [Member] | Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)											3 years
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)											33							33,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares)												22,000	15,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Rights, Percentage											33.33%
Share-Based Compensation Arrangement By Share-based Payment Award, Equity Instruments Other Than Options, Target Number Of Shares (in shares)											11,000
Share-based Compensation Termination Period Trigger (Month)									12 months
Share-Based Compensation, Percentage Of Shares That Will Vest Upon Trigger					100%				100%
Share-Based Compensation Arrangement By Share-Based Payment Award, Equity Instruments Other than Options, Vested in Period As A Percentage Of Target												200%	135%
Share-based Compensation Arrangement by Share-based Payment Award, Accelerated Vesting, Number (in shares)								44,000
Share-Based Payment Arrangement, Expense | $														3,900	$ 5,300	$ 2,800
ESPP Shares [Member]
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount, Total | $														$ 300			$ 300
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year)														1 month 6 days
Performance-based Restricted Stock Units [Member] | President and Chief Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)							3 years
Share-based Compensation Termination Period Trigger (Month)							12 months
Share-Based Compensation, Percentage Of Shares That Will Vest Upon Trigger							100%	100%
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)							10,000
Performance-based Restricted Stock Units [Member] | Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)			3 years		3 years
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period (in shares)															49,000
Share-based Compensation Termination Period Trigger (Month)					12 months
Share-Based Compensation, Percentage Of Shares That Will Vest Upon Trigger					100%
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)			86,000		73,000									58,000	68,000		175,000
Maximum [Member] | Share-Based Payment Arrangement, Option [Member] | Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Target Percentage									200%	200%
Maximum [Member] | Restricted Stock Units (RSUs) [Member] | President and Chief Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Target Percentage											200%
Maximum [Member] | Restricted Stock Units (RSUs) [Member] | Performance Shares, Tranche Three [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Target Percentage					200%						200%
Maximum [Member] | Performance-based Restricted Stock Units [Member] | President and Chief Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Target Percentage							200%
Maximum [Member] | Performance-based Restricted Stock Units [Member] | Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Target Percentage			200%												200%
Minimum [Member] | Share-Based Payment Arrangement, Option [Member] | Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Target Percentage									0%	0%
Minimum [Member] | Restricted Stock Units (RSUs) [Member] | President and Chief Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Target Percentage											0%
Minimum [Member] | Restricted Stock Units (RSUs) [Member] | Performance Shares, Tranche Three [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Target Percentage					0%						0%
Minimum [Member] | Performance-based Restricted Stock Units [Member] | President and Chief Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Target Percentage							0%
Minimum [Member] | Performance-based Restricted Stock Units [Member] | Executive Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Target Percentage			0%
The 2000 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Strike Price as a Percentage of Market Value														85%			85%
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)														0			0
The 2000 Equity Incentive Plan [Member] | Maximum [Member] | Share-Based Payment Arrangement, Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)														4 years
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year)														10 years
The 2012 Equity Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period (Year)														4 years
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)				9,689,000										2,351,000			2,351,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized, Annual Increase, Shares (in shares)																3,050,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized, Annual Increase, Percent of Shares Outstanding														5%			5%
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Additional Shares Authorized (in shares)				3,072,000										1,956,000
The 2021 Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant (in shares)														555,000			555,000
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized (in shares)						600,000
Share-based Compensation Arrangement by Share-based Payment Award, Offering Period (Month)						6 months
Share-based Compensation Arrangement by Share-based Payment Award, Purchase Price of Common Stock, Percent						85%
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value (in dollars per share) | $ / shares														$ 39.14
The 2021 Employee Stock Purchase Plan [Member] | Maximum [Member]
Employee Stock Purchase Plan, Percentage of Eligible Compensation Contributable						15%
The 2021 Employee Stock Purchase Plan [Member] | Minimum [Member]
Employee Stock Purchase Plan, Percentage of Eligible Compensation Contributable						1%
[1]Included 58 thousand shares of PSUs granted to certain executive officers in 2022 and 49 thousand shares of PSU granted in 2021 as a result of defining the level of performance goals for performance year 2023.[2]Included 68 thousand shares of PSUs granted to certain executive officers in 2021 for performance year 2022 at 200% vest level.

Note 10 - Stockholders' Equit_4

Note 10 - Stockholders' Equity and Stock-based Compensation - Summary of Stock-based Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Stock-based compensation	$ 53,408	$ 67,579	$ 40,035
Cost of Sales [Member]
Stock-based compensation	5,305	3,782	2,767
Research and Development Expense [Member]
Stock-based compensation	14,585	10,750	13,502
Selling and Marketing Expense [Member]
Stock-based compensation	9,837	6,323	5,785
General and Administrative Expense [Member]
Stock-based compensation	$ 23,681	$ 46,724	$ 17,981

Note 10 - Stockholders' Equit_5

Note 10 - Stockholders' Equity and Stock-based Compensation - Fair Value Assumptions, Stock Options (Details)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Dividend yield	0%	0%	0%
Minimum [Member]
Expected term (in years) (Year)	4 years 3 months 18 days	5 years 2 months 12 days	4 years 6 months
Volatility	40%	38%	38%
Risk-free interest rate	1.70%	0.50%	0.30%
Maximum [Member]
Expected term (in years) (Year)	4 years 4 months 24 days	5 years 6 months	5 years 6 months
Volatility	43%	41%	43%
Risk-free interest rate	4.20%	1.20%	1.40%

Note 10 - Stockholders' Equit_6

Note 10 - Stockholders' Equity and Stock-based Compensation - Share-based Compensation and Stock Options Activity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		12 Months Ended
		Dec. 31, 2022	Dec. 31, 2021
Balance (in shares)		1,838
Weighted average exercise price, balance (in dollars per share)		$ 66.05
Weighted Average Remaining Contractual Life Balance (Year)		6 years 6 months	6 years
Aggregate intrinsic value		$ 58,024	$ 130,791
Granted (in shares)		593
Weighted average exercise price, Granted (in dollars per share)		$ 133.43
Exercised (in shares)	[1]	(468)
Weighted average exercise price, Exercised (in dollars per share)		$ 52.29
Canceled (in shares)		(156)
Weighted average exercise price, Canceled (in dollars per share)		$ 114.21
Balance (in shares)		1,807	1,838
Weighted average exercise price, balance (in dollars per share)		$ 87.59	$ 66.05
Vested and expected to vest (in shares)		1,583
Weighted average exercise price, Vested and expected to vest (in dollars per share)		$ 81.95
Vested and Expected to vest, weighted average remaining contractual life (Year)		6 years 1 month 6 days
Vested and Expected to vest, aggregate intrinsic value		$ 57,690
Exercisable (in shares)		981
Weighted average exercise price, Exercisable (in dollars per share)		$ 56.25
Exercisable, weighted average remaining contractual life (Year)		4 years 4 months 24 days
Exercisable, aggregate intrinsic value		$ 56,062
[1]Included 348 thousand shares of PSOs.

Note 10 - Stockholders' Equit_7

Note 10 - Stockholders' Equity and Stock-based Compensation - Share-based Compensation, Restricted Stock and Restricted Stock Units (Details) - Restricted Stock Units (RSUs) [Member] - $ / shares shares in Thousands		12 Months Ended
		Dec. 31, 2022
Balance, number of shares (in shares)		952
Balance, weighted average grant date fair value (in dollars per share)		$ 105.20
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)	[1]	711
Granted, weighted average grant date fair value (in dollars per share)		$ 137.50
Vested, number of shares (in shares)	[2]	(330)
Vested, weighted average grant date fair value (in dollars per share)		$ 100.27
Forfeited, number of shares (in shares)		(150)
Forfeited, weighted average grant date fair value (in dollars per share)		$ 117.63
Balance, number of shares (in shares)	[3]	1,183
Balance, weighted average grant date fair value (in dollars per share)		$ 124.42
Expected to vest, number of shares (in shares)		929
Expected to vest, weighted average grant date fair value (in dollars per share)		$ 122.55
[1]Included 68 thousand shares of PSUs granted to certain executive officers in 2021 for performance year 2022 at 200% vest level.[2]Included 58 thousand shares of PSUs granted to certain executive officers in 2022 and 49 thousand shares of PSU granted in 2021 as a result of defining the level of performance goals for performance year 2023.[3]Included 175 thousand shares of PSUs granted to certain executive officers in 2022 and 2021.

Note 10 - Stockholders' Equit_8

Note 10 - Stockholders' Equity and Stock-based Compensation - Employee Stock Purchase Plan, Valuation Assumptions (Details)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Dividend yield	0%	0%	0%
The 2021 Employee Stock Purchase Plan [Member]
Expected term (in years) (Year)	6 months
Volatility. minimum	41.10%
Volatility, maximum	50.10%
Risk-free interest rate, minimum	0.70%
Risk-free interest rate, maximum	3.10%
Dividend yield	0%

Note 10 - Stockholders' Equit_9

Note 10 - Stockholders' Equity and Stock-based Compensation - Schedule of Repurchase Agreements (Details) - USD ($) $ in Billions	Dec. 31, 2022	May 04, 2022	Nov. 03, 2021	Feb. 10, 2021	May 07, 2020	Oct. 30, 2019	Oct. 30, 2018	Feb. 12, 2018
Authorized Dollar Value	$ 0.9							$ 0.1
October 30, 2018		$ 0.2	$ 0.2	$ 0.1	$ 0.1	$ 0.1	$ 0.1

Note 11 - Employee Benefits P_2

Note 11 - Employee Benefits Plan (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
401(k) Plan [Member]
Defined Contribution Plan, Employer Discretionary Contribution Amount	$ 3.5	$ 2.4	$ 1.3
Provident Fund Plan and Gratuity Plan [Member]
Defined Contribution Plan, Employer Discretionary Contribution Amount	$ 2	$ 1.7	$ 1.4

Note 12 - Income Taxes (Details

Note 12 - Income Taxes (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Deferred Tax Assets, Valuation Allowance	$ 12,476	$ 11,364
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	1,100
Operating Loss Carryforwards	16,200
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	$ 5,300	4,900	$ 4,600
Foreign Tax Authority [Member]
Tax Credit Carryforward, Amount		$ 900

Note 12 - Income Taxes - Schedu

Note 12 - Income Taxes - Schedule of Income before Income Tax, Domestic and Foreign (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Domestic	$ 122,013	$ 80,472	$ 94,099
Foreign	11,687	8,925	7,938
Income before income taxes	$ 133,700	$ 89,397	$ 102,037

Note 12 - Income Taxes - Sche_2

Note 12 - Income Taxes - Schedule of Components of Income Tax Expense (Benefit) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Federal	$ 35,286	$ 20,135	$ 1,944
State	6,269	4,324	1,438
Foreign	4,606	3,701	3,571
Current income tax provision	46,161	28,160	6,953
Federal	(17,097)	(7,342)	4,239
State	(3,055)	(1,722)	26
Foreign	(301)	(659)	(753)
Deferred income tax provision (benefit)	(20,453)	(9,723)	3,512
Income tax provision	$ 25,708	$ 18,437	$ 10,465

Note 12 - Income Taxes - Sche_3

Note 12 - Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Federal statutory rate	21%	21%	21%
State taxes	2.30%	3.10%	1.60%
Stock-based compensation	3.40%	10.30%	4.80%
Excess tax benefits related to stock-based compensation	(5.20%)	(5.40%)	(13.80%)
Foreign source income	3.80%	0.40%	0.20%
Change in valuation allowance	0.30%	0.20%	0.80%
Foreign-derived intangible income deduction	(4.90%)	(7.00%)	(1.70%)
Federal and state research and development credit	(1.30%)	(1.90%)	(2.60%)
Other	(0.20%)	(0.10%)	0%
Income tax provision	19.20%	20.60%	10.30%

Note 12 - Income Taxes - Sche_4

Note 12 - Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Research and development credit carryforwards	$ 10,957	$ 10,743
Accrued liabilities	3,677	1,655
Deferred revenues	5,766	7,250
Operating lease liabilities	10,667	11,777
Intangible assets	3,465	2,988
Stock-based compensation	4,691	4,085
Capitalized R&D	30,234	9,389
Other	2,195	3,920
Gross deferred tax assets	71,652	51,807
Valuation allowance	(12,476)	(11,364)
Total deferred tax assets	59,176	40,443
Fixed assets	(1,745)	(3,320)
Operating leases - right of use asset	(8,359)	(9,010)
Deferred commissions	(3,660)	(3,026)
Total deferred tax liabilities	(13,764)	(15,356)
Net deferred tax assets	$ 45,412	$ 25,087

Note 12 - Income Taxes - Sche_5

Note 12 - Income Taxes - Schedule of Unrecognized Tax Benefits Roll Forward (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Unrecognized tax benefits beginning balance	$ 9,676	$ 8,855	$ 7,778
Gross increase for tax positions of prior years	89	0	4
Gross decrease for tax positions of prior years	0	(25)	0
Gross increase for tax positions of current year	777	846	1,258
Lapse of statute of limitations	0	0	(185)
Total unrecognized tax benefits	$ 10,542	$ 9,676	$ 8,855

Note 13 - Segment and Geograp_3

Note 13 - Segment and Geographic Area Information (Details Textual)	12 Months Ended
	Dec. 31, 2022
Number of Operating Segments	1
Number of Reportable Segments	1

Note 13 - Segment and Geograp_4

Note 13 - Segment and Geographic Area Information - Revenue and Property and Equipment, Net by Geographic Area (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Revenues	$ 489,723	$ 411,172	$ 362,963
Property and equipment, net and Operating leases - right of use asset	81,180	98,870
UNITED STATES
Revenues	292,291	252,428	229,484
Property and equipment, net and Operating leases - right of use asset	58,775	66,440
Non-US [Member]
Revenues	197,432	158,744	$ 133,479
INDIA
Property and equipment, net and Operating leases - right of use asset	16,057	20,401
Other Geographic Areas [Member]
Property and equipment, net and Operating leases - right of use asset	$ 6,348	$ 12,029

Note 14 - Net Income Per Shar_2

Note 14 - Net Income Per Share - Basic and Diluted Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Net income	$ 107,992	$ 70,960	$ 91,572
Basic weighted average shares (in shares)	38,453	39,030	39,167
Stock options (in shares)	672	863	1,262
Restricted stock units (in shares)	216	224	311
Employee stock purchase plan (in shares)	3	1	0
Diluted weighted average shares (in shares)	39,344	40,118	40,740
Basic (in dollars per share)	$ 2.81	$ 1.82	$ 2.34
Diluted (in dollars per share)	$ 2.74	$ 1.77	$ 2.25

Note 14 - Net Income Per Shar_3

Note 14 - Net Income Per Share - Anti-dilutive Net Income Per Share (Details) - shares shares in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Antidilutive securities (in shares)	781	595	584
Share-Based Payment Arrangement, Option [Member]
Antidilutive securities (in shares)	686	534	532
Restricted Stock Units (RSUs) [Member]
Antidilutive securities (in shares)	90	61	52
Employee Stock Purchase Plan Shares [Member]
Antidilutive securities (in shares)	5	0	0