INCOME TAXES (Tables)

12 Months Ended

Dec. 31, 2024

INCOME TAXES:

Summary of Income Tax Expense (In Thousands)

	Year Ended December 31,
	2024		2023		2022
	(In thousands)
U.S.
Current	$	499	$	(353)	$	1,210
Deferred		9		3		13
Foreign
Current		277		453		577
Withholding		1,699		1,770		2,111
Deferred		38		(109)		(12)
Total income tax expense	$	2,522	$	1,764	$	3,899

Summary of Effective Income Tax Rate Reconciliation (In Thousands)

	Year Ended December 31,
	2024		2023		2022
Federal statutory income tax expense	$	1,382	$	1,016	$	106
State income tax expense		738		(65)		949
Stock compensation expense		286		(1,747)		(898)
Tax credits		(2,795)		(3,214)		(2,877)
Foreign taxes, net		1,707		1,859		2,195
Foreign-derived intangible income deduction		(2,052)		(1,612)		(830)
Change in valuation allowance		2,882		5,043		5,122
Section 162(m) limitation		148		424		92
Unrealized tax benefit reserve changes		232		99		136
Other		(6)		(39)		(96)
Total income tax expense	$	2,522	$	1,764	$	3,899

Summary of Net Deferred Tax Assets (In Thousands)

	December 31,
	2024		2023
Deferred tax assets:
Net operating loss carry forward	$	2,414	$	3,005
Research and development and other credit carry forward		31,988		30,633
Foreign tax credit carry forward		1,977		7,611
Capitalized research and experimental expenses		26,426		20,403
Accruals deductible in different periods		6,049		4,037
Leases		1,113		1,282
Stock-based compensation		2,087		1,882
Total deferred tax assets		72,054		68,853
Less: valuation allowance		(67,946)		(64,152)
Total deferred tax assets, net of valuation allowance		4,108		4,701
Deferred tax liabilities:
Property and equipment, net		(752)		(612)
Operating lease right-of-use assets		(1,082)		(1,266)
Intangible assets		(2,366)		(2,995)
Total deferred tax liabilities		(4,200)		(4,873)
Net deferred tax liabilities	$	(92)	$	(172)

Summary of Unrecognized Tax Benefits (In Thousands)

	Year Ended December 31,
	2024		2023		2022
Gross unrecognized tax benefits, beginning of year	$	15,937	$	15,109	$	14,743
Increases in tax positions for current year		1,290		1,469		988
Increases in tax positions for prior years		—		91		—
Lapse in statute of limitations		(658)		(732)		(622)
Gross unrecognized tax benefits, end of year	$	16,569	$	15,937	$	15,109

Summary of Deferred Tax Assets Valuation Allowance (In Thousands)

	Balance at		Charged to		Deductions/		Balance at
	Beginning		Income Tax		Write-offs of		End of
	of Period		Expense		Accounts		Period
2024	$	64,152	$	3,794	$	—	$	67,946
2023	$	59,215	$	4,937	$	—	$	64,152
2022	$	51,586	$	7,629	$	—	$	59,215