CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Common Stock	Additional Paid-In Capital	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]
Contributions from non-controlling interest	195				195
Shares issued on stock options exercises for cash (in shares)		8
Shares issued on stock options exercises for cash	21		21
Stock based compensation	2,563		2,563
Shares issued on net settlement of stock options (in shares)		26
Net loss	(8,956)			(8,947)	(9)
Ending balance (in shares) at Jun. 30, 2021		34,323
Ending balance at Jun. 30, 2021	57,682	$ 34	63,650	(6,326)	324
Beginning balance (in shares) at Mar. 31, 2021		34,318
Beginning balance at Mar. 31, 2021	60,169	$ 34	62,281	(2,280)	134
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Contributions from non-controlling interest	195				195
Stock based compensation	1,369		1,369
Shares issued on net settlement of stock options (in shares)		5
Net loss	(4,051)			(4,046)	(5)
Ending balance (in shares) at Jun. 30, 2021		34,323
Ending balance at Jun. 30, 2021	57,682	$ 34	63,650	(6,326)	324
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)		44
Shares issued on stock options exercises for cash	208		208
Stock based compensation	3,364		3,364
Shares issued on net settlement of stock options (in shares)		39
Net loss	(11,418)			(11,371)	(47)
Ending balance (in shares) at Jun. 30, 2022		34,493
Ending balance at Jun. 30, 2022	46,163	$ 34	69,793	(23,922)	258
Beginning balance (in shares) at Mar. 31, 2022		34,453
Beginning balance at Mar. 31, 2022	49,843	$ 34	68,023	(18,496)	282
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Shares issued on stock options exercises for cash (in shares)		20
Shares issued on stock options exercises for cash	56		56
Stock based compensation	1,714		1,714
Shares issued on net settlement of stock options (in shares)		20
Net loss	(5,450)			(5,426)	(24)
Ending balance (in shares) at Jun. 30, 2022		34,493
Ending balance at Jun. 30, 2022	$ 46,163	$ 34	$ 69,793	$ (23,922)	$ 258