Condensed Consolidated Statement of Changes in Convertible Preferred Stock and Stockholders' Equity (Deficit) - USD ($) $ in Thousands	Total	Convertible Preferred Stock [Member]	Preferred Stock [Member] Convertible Preferred Stock [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	Accumulated Deficit [Member]	Total [Member]
Beginning Balance at Dec. 31, 2020	$ (75,472)		$ 137,497	$ 4	$ 5,538	$ (1,450)	$ (79,564)	$ 62,025
Beginning Balance, Shares at Dec. 31, 2020		107,592,801		39,510,108		483,479
Exercise of common stock options	356				356			356
Exercise of common stock options, Shares				714,170
Stock-based compensation expense	1,194				1,194			1,194
Exercise of Series D warrants			100					100
Exercise of Series D warrants, Shares		20,037
Net income (loss) and comprehensive income (loss)	(10,019)						(10,019)	(10,019)
Ending Balance at Mar. 31, 2021	(83,941)		137,597	$ 4	7,088	$ (1,450)	(89,583)	53,656
Ending Balance, Shares at Mar. 31, 2021		107,612,838		40,224,278		483,479
Beginning Balance at Dec. 31, 2021	244,169		0	$ 19	319,859	$ 0	(75,709)	244,169
Beginning Balance, Shares at Dec. 31, 2021		0		185,993,058		0
Exercise of common stock options	580				580			580
Exercise of common stock options, Shares				942,836
Stock vested under compensation plan less shares withheld to cover taxes				182,066
Stock-based compensation expense	4,285				4,285			4,285
Earnout stock-based compensation expense	1,137				1,137			1,137
Net income (loss) and comprehensive income (loss)	4,239						4,239	4,239
Ending Balance at Mar. 31, 2022	$ 254,410		$ 0	$ 19	$ 325,861	$ 0	$ (71,470)	$ 254,410
Ending Balance, Shares at Mar. 31, 2022		0		187,117,960		0