Condensed Consolidated Statements of Mezzanine Equity and Stockholders' Equity (Deficit) (Unaudited) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid In Capital	Accumulated Other Comprehensive Income	Accumulated Deficit	Redeemable Convertible Preferred Stock
Beginning Balance at Dec. 31, 2019						$ 54,170
Beginning Balance, Shares at Dec. 31, 2019						31,968,570
Beginning Balance at Dec. 31, 2019	$ (39,144)	$ 7	$ 2,061		$ (41,212)
Beginning Balance, Shares at Dec. 31, 2019		6,720,767
Options exercised for common stock	22		22
Options exercised for common stock, Shares		58,498
Share based compensation	494		494
Net income	4,112				4,112
Ending Balance at Mar. 31, 2020						$ 54,170
Ending Balance, Shares at Mar. 31, 2020						31,968,570
Ending Balance at Mar. 31, 2020	(34,516)	$ 7	2,577		(37,100)
Ending Balance, Shares at Mar. 31, 2020		6,779,265
Beginning Balance at Dec. 31, 2020	200,254	$ 49	227,624	$ 4	(27,423)
Beginning Balance, Shares at Dec. 31, 2020		49,251,614
Options exercised for common stock	381	$ 1	380
Options exercised for common stock, Shares		296,019
Issuance of common stock under employee stock purchase plan	1,882		1,882
Issuance of common stock under employee stock purchase plan, Shares		36,881
Issuance of common stock upon vesting of restricted stock units, net of shares withheld for taxes	(49)		(49)
Issuance of common stock upon vesting of restricted stock units, net of shares withheld for taxes, Shares		901
Share based compensation	3,836		3,836
Comprehensive income (loss)	(162)			(162)
Net income	7,469				7,469
Ending Balance at Mar. 31, 2021	$ 213,611	$ 50	$ 233,673	$ (158)	$ (19,954)
Ending Balance, Shares at Mar. 31, 2021		49,585,415