CONSOLIDATED STATEMENTS OF CONVERTIBLE PREFERRED SERIES EQUITY & STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Initial Public Offering	Series A Convertible Preferred Stock	Series B Convertible Preferred Stock	Common Stock	Common Stock Initial Public Offering	Additional Paid-in-Capital	Additional Paid-in-Capital Initial Public Offering	Retained Earnings (Accumulated) Deficit	Accumulated Other Comprehensive Income	Treasury Stock
Temporary equity, beginning balance, shares at Dec. 31, 2018			13,812,500
Temporary equity, beginning balance at Dec. 31, 2018			$ 4,250
Beginning balance, shares at Dec. 31, 2018					42,533,660
Beginning balance at Dec. 31, 2018	$ 21,935				$ 425		$ 14,851		$ 6,615	$ 44
Net income (loss)	3,117								3,117
Common stock repurchase, shares					(588,710)
Common stock repurchase	(3,885)				$ (6)		5				$ (3,884)
Options exercised, shares					121,750
Options exercised	115				$ 2		113
Foreign currency translation	(38)									(38)
Stock-based compensation	1,754						1,754
Temporary equity, ending balance, shares at Dec. 31, 2019			13,812,500
Temporary equity, ending balance at Dec. 31, 2019			$ 4,250
Ending balance, shares at Dec. 31, 2019					42,066,700
Ending balance at Dec. 31, 2019	22,998				$ 421		16,723		9,732	6	(3,884)
Net income (loss)	3,498								3,498
Issuance of common stock, shares					319,015
Issuance of common stock	1,842				$ 3		1,839
Common stock repurchase, shares					(239,760)
Common stock repurchase	(1,538)				$ (2)		2				(1,538)
Issuance of series B convertible preferred stock, net of issuance costs, shares				6,608,700
Issuance of series B convertible preferred stock, net of issuance costs				$ 36,030
Series B convertible preferred stock dividend	812			$ 812					(812)
Series B convertible preferred stock dividend, permanent equity	(812)
Options exercised, shares					4,592,585
Options exercised	1,780				$ 45		1,735
Foreign currency translation	817									817
Stock-based compensation	1,808						1,808
Temporary equity, ending balance, shares at Dec. 31, 2020			13,812,500	6,608,700
Temporary equity, ending balance at Dec. 31, 2020			$ 4,250	$ 36,842
Ending balance, shares at Dec. 31, 2020					46,738,540
Ending balance at Dec. 31, 2020	30,393				$ 467		22,107		12,418	823	(5,422)
Net income (loss)	(13,693)								(13,693)
Issuance of common stock, shares					151,515	8,984,375
Issuance of common stock	1,001	$ 129,384			$ 1	$ 90	1,000	$ 129,294
Common stock repurchase, shares					(85,049)
Common stock repurchase	(561)				$ (1)						(560)
Temporary equity, Conversion of Series A and Series B preferred stock to common stock, Shares			(13,812,500)	(6,608,700)
Temporary equity, Conversion of Series A and Series B preferred stock to common stock, Value			$ (4,250)	$ (36,842)
Conversion of Series A and Series B preferred stock to common stock, Shares					20,421,200
Conversion of Series A and Series B preferred stock to common stock, Value	41,092				$ 204		40,076		812
Options exercised, shares					236,706
Options exercised	445				$ 2		443
Foreign currency translation	(815)									(815)
Stock-based compensation	4,948						4,948
Temporary equity, ending balance, shares at Dec. 31, 2021			0	0
Ending balance, shares at Dec. 31, 2021					76,447,287
Ending balance at Dec. 31, 2021	$ 192,194				$ 763		$ 197,868		$ (463)	$ 8	$ (5,982)