Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	February 2020 Stock Offering [Member] Common Stock [Member]	February 2020 Stock Offering [Member] Common Stock Subscribed [Member]	February 2020 Stock Offering [Member] Additional Paid-in Capital [Member]	February 2020 Stock Offering [Member] Retained Earnings [Member]	February 2020 Stock Offering [Member] AOCI Attributable to Parent [Member]	February 2020 Stock Offering [Member] Subscription Receivable [Member]	February 2020 Stock Offering [Member]	The 2019 ATM Agreement [Member] Common Stock [Member]	The 2019 ATM Agreement [Member] Common Stock Subscribed [Member]	The 2019 ATM Agreement [Member] Additional Paid-in Capital [Member]	The 2019 ATM Agreement [Member] Retained Earnings [Member]	The 2019 ATM Agreement [Member] AOCI Attributable to Parent [Member]	The 2019 ATM Agreement [Member] Subscription Receivable [Member]	The 2019 ATM Agreement [Member]	The 2020 ATM Agreement [Member] Common Stock [Member]	The 2020 ATM Agreement [Member] Common Stock Subscribed [Member]	The 2020 ATM Agreement [Member] Additional Paid-in Capital [Member]	The 2020 ATM Agreement [Member] Retained Earnings [Member]	The 2020 ATM Agreement [Member] AOCI Attributable to Parent [Member]	The 2020 ATM Agreement [Member] Subscription Receivable [Member]	The 2020 ATM Agreement [Member]	Lincoln Park Transaction [Member] Common Stock [Member]	Lincoln Park Transaction [Member] Common Stock Subscribed [Member]	Lincoln Park Transaction [Member] Additional Paid-in Capital [Member]	Lincoln Park Transaction [Member] Retained Earnings [Member]	Lincoln Park Transaction [Member] AOCI Attributable to Parent [Member]	Lincoln Park Transaction [Member] Subscription Receivable [Member]	Lincoln Park Transaction [Member]	Q1 2021 Stock Sale [Member] Common Stock [Member]	Q1 2021 Stock Sale [Member] Common Stock Subscribed [Member]	Q1 2021 Stock Sale [Member] Additional Paid-in Capital [Member]	Q1 2021 Stock Sale [Member] Retained Earnings [Member]	Q1 2021 Stock Sale [Member] AOCI Attributable to Parent [Member]	Q1 2021 Stock Sale [Member] Subscription Receivable [Member]	Q1 2021 Stock Sale [Member]	Equity Purchase Agreement [Member] Common Stock [Member]	Equity Purchase Agreement [Member] Common Stock Subscribed [Member]	Equity Purchase Agreement [Member] Additional Paid-in Capital [Member]	Equity Purchase Agreement [Member] Retained Earnings [Member]	Equity Purchase Agreement [Member] AOCI Attributable to Parent [Member]	Equity Purchase Agreement [Member] Subscription Receivable [Member]	Equity Purchase Agreement [Member]	Common Stock [Member]	Common Stock Subscribed [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Subscription Receivable [Member]	Total
Balance (in shares) at Dec. 31, 2019																																											7,621,338	0
Balance at Dec. 31, 2019																																											$ 46	$ 0	$ 55,055	$ (39,561)	$ 31	$ 0	$ 15,571
Issuance of common stock, net of issuance costs (in shares)	1,250,000	0						1,412,017	0					1,412,017	471,405	0					471,405	771,220	0
Issuance of common stock, net of issuance costs	$ 7	$ 0	$ 559	$ 0	$ 0	$ 0	$ 566	$ 8	$ 0	$ 11,778	$ 0	$ 0	$ 0	$ 11,786	$ 3	$ 0	$ 2,770	$ 0	$ 0	$ 0	$ 2,773	$ 5	$ 0	$ 2,708	$ 0	$ 0	$ 0	$ 2,713
Subscription of common stock in connection with the 2020 ATM Agreement, net of commissions (in shares)																																											0	26,966
Subscription of common stock in connection with the 2020 ATM Agreement, net of commissions																																											$ 0	$ 0	129	0	0	(129)	0
Warrants exercised (in shares)																																											750	0
Warrants exercised																																											$ 0	$ 0	9	0	0	0	9
Common stock issued upon vesting of restricted stock units (net of shares withheld for payment of tax liability) (in shares)																																											9,990	0
Common stock issued upon vesting of restricted stock units (net of shares withheld for payment of tax liability)																																											$ 0	$ 0	(17)	0	0	0	(17)
Stock based compensation																																													1,680				1,680
Consolidated net loss																																											0	0	0	(17,355)	0	0	(17,355)
Cumulative translation adjustment																																											0	0	0		34	0	34
Net loss																																											$ 0	$ 0	0	(17,355)	0	0	(17,355)
Balance (in shares) at Dec. 31, 2020																																											11,536,720	26,966
Balance at Dec. 31, 2020																																											$ 69	$ 0	74,671	(56,916)	65	(129)	17,760
Issuance of common stock, net of issuance costs (in shares)																													16,883,420	(26,966)						107,788	0
Issuance of common stock, net of issuance costs																													$ 18	$ 0	$ 74,537	$ 0	$ 0	$ 129	$ 74,684	$ 1	$ 0	$ 0	$ 0	$ 0	$ 0	$ 1
Warrants exercised (in shares)																																											10,000	0
Warrants exercised																																											$ 1	$ 0	115	0	0	0	116
Common stock issued upon vesting of restricted stock units (net of shares withheld for payment of tax liability) (in shares)																																											21,125	0
Common stock issued upon vesting of restricted stock units (net of shares withheld for payment of tax liability)																																											$ 0	$ 0	(23)	0	0	0	(23)
Stock based compensation																																											0	0	2,368	0	0	0	2,368
Consolidated net loss																																											0	0	0	(15,894)	0	0	(15,894)
Cumulative translation adjustment																																											$ 0	$ 0	0		(24)	0	(24)
Reverse stock split (in shares)																																											14,285	0
Reverse stock split																																											$ (60)	$ 0	60	0	0	0	0
Issuance of common stock in connection with Consulting Agreement (in shares)																																											5,000	0
Issuance of common stock in connection with Consulting Agreement																																											$ 0	$ 0	5	0	0	0	5
Net loss																																											$ 0	$ 0	0	(15,894)	0	0	(15,894)
Balance (in shares) at Dec. 31, 2021																																											28,578,338	0
Balance at Dec. 31, 2021																																											$ 29	$ 0	$ 151,733	$ (72,810)	$ 41	$ 0	$ 78,993