CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Retained Earnings (Accumulated Deficit)	Non-controlling Interest
Beginning balance (in shares) at Dec. 31, 2020		34,289
Beginning balance at Dec. 31, 2020	$ 63,859	$ 34	$ 61,066	$ 2,621	$ 138
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued on stock options exercises for cash (in shares)		8
Shares issued on stock options exercises for cash	21		21
Stock based compensation	1,194		1,194
Shares issued on net settlement of stock options (in shares)		21
Net loss	(4,905)			(4,901)	(4)
Ending balance (in shares) at Mar. 31, 2021		34,318
Ending balance at Mar. 31, 2021	60,169	$ 34	62,281	(2,280)	134
Beginning balance (in shares) at Dec. 31, 2021		34,410
Beginning balance at Dec. 31, 2021	54,009	$ 34	66,221	(12,551)	305
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued on stock options exercises for cash (in shares)		24
Shares issued on stock options exercises for cash	152		152
Stock based compensation	1,650		1,650
Shares issued on net settlement of stock options (in shares)		19
Net loss	(5,968)			(5,945)	(23)
Ending balance (in shares) at Mar. 31, 2022		34,453
Ending balance at Mar. 31, 2022	$ 49,843	$ 34	$ 68,023	$ (18,496)	$ 282