UNAUDITED CONDENSED CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' DEFICIT - USD ($) shares in Thousands, $ in Thousands	Common Stock [Member]	Treasury Stock, Common [Member]	AOCI Attributable to Parent [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Beginning balance, value at Dec. 31, 2021	$ 191	$ (362)	$ (43)	$ 84,230	$ (80,097)	$ 3,919
Beginning Balance, shares at Dec. 31, 2021	19,135	10
Stock-based compensation expense				427		427
Exercise of stock options	$ 1			60		61
Exercise of stock options, shares	91
Public stock offering, net of fees	$ 3			946		949
Public stock offering, net of fees, shares	248
Net loss					(4,054)	(4,054)
Ending balance, value at Mar. 31, 2022	$ 195	$ (362)	(43)	85,663	(84,151)	1,302
Ending Balance, shares at Mar. 31, 2022	19,474	10
Beginning balance, value at Dec. 31, 2021	$ 191	$ (362)	(43)	84,230	(80,097)	3,919
Beginning Balance, shares at Dec. 31, 2021	19,135	10
Net loss						(8,119)
Ending balance, value at Jun. 30, 2022	$ 197	$ (362)	(43)	86,570	(88,216)	(1,854)
Ending Balance, shares at Jun. 30, 2022	19,745	10
Beginning balance, value at Mar. 31, 2022	$ 195	$ (362)	(43)	85,663	(84,151)	1,302
Beginning Balance, shares at Mar. 31, 2022	19,474	10
Stock-based compensation expense				450		450
Exercise of stock options				4		4
Exercise of stock options, shares	6
Public stock offering, net of fees	$ 1			254		255
Public stock offering, net of fees, shares	84
Net loss					(4,065)	(4,065)
Partial extinguishment of operating lease with common stock				200		200
Partial extinguishment of operating lease with common stock, shares	75
Issuance of restricted stock, net of forfeitures	$ 1			(1)
Restricted stock, net of current forfeitures, shares	106
Ending balance, value at Jun. 30, 2022	$ 197	$ (362)	(43)	86,570	(88,216)	(1,854)
Ending Balance, shares at Jun. 30, 2022	19,745	10
Beginning balance, value at Dec. 31, 2022	$ 212	$ (362)	(43)	92,304	(96,326)	(4,215)
Beginning Balance, shares at Dec. 31, 2022	21,198	10
Stock-based compensation expense				94		94
Exercise of stock options				7		7
Exercise of stock options, shares	58
Public stock offering, net of fees				21		21
Public stock offering, net of fees, shares	2
Withholdings related to stock-based compensation awards				(5)		(5)
Net loss					(4,734)	(4,734)
Ending balance, value at Mar. 31, 2023	$ 212	$ (362)	(43)	92,421	(101,060)	(8,832)
Ending Balance, shares at Mar. 31, 2023	21,258	10
Beginning balance, value at Dec. 31, 2022	$ 212	$ (362)	(43)	92,304	(96,326)	(4,215)
Beginning Balance, shares at Dec. 31, 2022	21,198	10
Net loss						(7,863)
Ending balance, value at Jun. 30, 2023	$ 224	$ (362)	(43)	94,049	(104,189)	(10,321)
Ending Balance, shares at Jun. 30, 2023	22,442	10
Beginning balance, value at Mar. 31, 2023	$ 212	$ (362)	(43)	92,421	(101,060)	(8,832)
Beginning Balance, shares at Mar. 31, 2023	21,258	10
Stock-based compensation expense				331		331
Public stock offering, net of fees	$ 10			1,299		1,309
Public stock offering, net of fees, shares	970
Net loss					(3,129)	(3,129)
Issuance of restricted stock, net of forfeitures	$ 2			(2)
Issuance of restricted stock, net of forfeitures, shares	214
Ending balance, value at Jun. 30, 2023	$ 224	$ (362)	$ (43)	$ 94,049	$ (104,189)	$ (10,321)
Ending Balance, shares at Jun. 30, 2023	22,442	10