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, 2019		34,170
Beginning balance at Dec. 31, 2019	$ 71,259	$ 34	$ 56,708	$ 14,517	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Contributions from non-controlling interest	$ 148				148
Shares issued on stock options exercises for cash (in shares)	148	27	148
Stock based compensation	$ 4,210		$ 4,210
Shares issued on net settlement of stock options (in shares)		47
Vested restricted stock issued (in shares)		45
Net loss	(11,906)			(11,896)	(10)
Ending balance (in shares) at Dec. 31, 2020		34,289
Ending balance at Dec. 31, 2020	63,859	$ 34	$ 61,066	2,621	138
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Contributions from non-controlling interest	$ 195				195
Shares issued on stock options exercises for cash (in shares)	67	13	67
Stock based compensation	$ 5,088		$ 5,088
Shares issued on net settlement of stock options (in shares)		108
Net loss	(15,200)			(15,172)	(28)
Ending balance (in shares) at Dec. 31, 2021		34,410
Ending balance at Dec. 31, 2021	$ 54,009	$ 34	$ 66,221	$ (12,551)	$ 305