CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Cash flows from operating activities:
Net cash used in operating activities (Note 19)	$ 1,414	$ (9,484)
Cash flows from investing activities:
Proceeds from sale of assets	17	525
Acquisition of short-term investments		(59)
Acquisitions of property, plant and equipment	(1,620)	(470)
Net cash used in investing activities	(1,603)	(4)
Cash flows from financing activities:
Proceeds from issuance of common stock, net of issuance costs	2,714	14,599
Proceeds from related party loan (Note 23)		1,000
Payment of related party loan (Note 23)		(1,000)
Net cash from financing activities	2,714	14,599
Net (decrease) increase in cash and cash equivalents	2,525	5,111
Cash and cash equivalents, beginning of period	9,704	4,593
Cash and cash equivalents, end of period	$ 12,229	$ 9,704