CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE LOSS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Revenues:
Revenues	$ 39,860	$ 29,555	$ 108,026	$ 81,174
Costs and Expenses:
Costs of revenues	12,545	11,070	36,116	32,518
Research and development	14,303	10,657	41,766	32,562
Selling, general and administrative	12,005	9,609	32,614	28,482
Amortization of acquired intangible assets	318	314	946	942
Interest and other expense (income), net	(1,511)	(194)	(2,812)	(391)
Income (loss) before income taxes	2,200	(1,901)	(604)	(12,939)
Income tax expense	815	506	3,308	1,549
Net income (loss)	1,385	(2,407)	(3,912)	(14,488)
Other comprehensive loss:
Foreign currency translation adjustments, net of tax	(1,394)	(226)	(2,828)	(540)
Change in unrealized gain (loss) related to available-for-sale debt securities, net of tax	17	1	(17)	(3)
Total other comprehensive loss	(1,377)	(225)	(2,845)	(543)
Comprehensive income (loss)	$ 8	$ (2,632)	$ (6,757)	$ (15,031)
Net income (loss) per share, basic (in dollars per share)	$ 0.04	$ (0.06)	$ (0.10)	$ (0.39)
Net income (loss) per share, diluted (in dollars per share)	$ 0.04	$ (0.06)	$ (0.10)	$ (0.39)
Weighted average common shares used to calculate net income (loss) per share, basic (in shares)	37,226	37,221	37,285	37,067
Weighted average common shares used to calculate net income (loss) per share, diluted (in shares)	38,054	37,221	37,285	37,067
Analytics
Revenues:
Revenues	$ 32,879	$ 27,194	$ 94,422	$ 66,165
Integrated Yield Ramp
Revenues:
Revenues	$ 6,981	$ 2,361	$ 13,604	$ 15,009