Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balance at March 31, 2021 (in shares)	16,297,381
Balance at March 31, 2021	$ 16	$ 135,234	$ (116,074)	$ 19,176
Balance at December 31, 2020 (in shares) at Dec. 31, 2020	16,297,381
Balance at December 31, 2020 at Dec. 31, 2020	$ 16	135,234	(116,074)	19,176
Restricted stock units vested and issued (in shares)	40,100
Sale of common stock, net of issuance costs of $67 (in shares)	453,832
Sale of common stock, net of issuance costs of $67	$ 1	1,933		1,934
Exercise of common stock options (in shares)	1,580
Exercise of common stock options		5		5
Share-based compensation		416		416
Net loss			(2,969)	(2,969)
Balance at June 30, 2021 (in shares) at Mar. 31, 2021	16,792,893
Balance at June 30, 2021 at Mar. 31, 2021	$ 17	137,588	(119,043)	18,562
Balance at December 31, 2020 (in shares) at Dec. 31, 2020	16,297,381
Balance at December 31, 2020 at Dec. 31, 2020	$ 16	135,234	(116,074)	19,176
Net loss				(9,162)
Balance at June 30, 2021 (in shares) at Sep. 30, 2021	16,871,265
Balance at June 30, 2021 at Sep. 30, 2021	$ 17	138,631	(125,236)	13,412
Balance at March 31, 2021 (in shares)	16,792,893
Balance at March 31, 2021	$ 17	137,588	(119,043)	18,562
Balance at December 31, 2020 (in shares) at Mar. 31, 2021	16,792,893
Balance at December 31, 2020 at Mar. 31, 2021	$ 17	137,588	(119,043)	18,562
Restricted stock units vested and issued (in shares)	78,372
Share-based compensation		384		384
Net loss			(3,487)	(3,487)
Restricted stock units issued to settle management bonus obligations		214		214
Balance at June 30, 2021 (in shares) at Jun. 30, 2021	16,871,265
Balance at June 30, 2021 at Jun. 30, 2021	$ 17	138,186	(122,530)	15,673
Balance at March 31, 2021 (in shares)	16,871,265
Balance at March 31, 2021	$ 17	138,186	(122,530)	15,673
Share-based compensation		437		437
Net loss			(2,706)	(2,706)
Refund of issuance costs on sale of common stock	$ 0	8	0	8
Balance at June 30, 2021 (in shares) at Sep. 30, 2021	16,871,265
Balance at June 30, 2021 at Sep. 30, 2021	$ 17	138,631	(125,236)	13,412
Balance at March 31, 2021 (in shares)	16,871,265
Balance at March 31, 2021	$ 17	138,631	(125,236)	13,412
Balance at March 31, 2021 (in shares)	16,871,265
Balance at March 31, 2021	$ 17	139,055	(128,697)	10,375
Balance at December 31, 2020 (in shares) at Dec. 31, 2021	16,871,265
Balance at December 31, 2020 at Dec. 31, 2021	$ 17	139,055	(128,697)	10,375
Share-based compensation	$ 0	319	0	319
Net loss			(3,325)	(3,325)
Balance at June 30, 2021 (in shares) at Mar. 31, 2022	16,871,265
Balance at June 30, 2021 at Mar. 31, 2022	$ 17	139,374	(132,022)	7,369
Balance at December 31, 2020 (in shares) at Dec. 31, 2021	16,871,265
Balance at December 31, 2020 at Dec. 31, 2021	$ 17	139,055	(128,697)	$ 10,375
Exercise of common stock options (in shares)				(0)
Net loss				$ (8,879)
Balance at June 30, 2021 (in shares) at Sep. 30, 2022	17,841,927
Balance at June 30, 2021 at Sep. 30, 2022	$ 18	141,655	(137,576)	4,097
Balance at March 31, 2021 (in shares)	16,871,265
Balance at March 31, 2021	$ 17	139,374	(132,022)	7,369
Balance at December 31, 2020 (in shares) at Mar. 31, 2022	16,871,265
Balance at December 31, 2020 at Mar. 31, 2022	$ 17	139,374	(132,022)	7,369
Restricted stock units vested and issued (in shares)	311,929
Sale of common stock, net of issuance costs of $67 (in shares)	575,000
Sale of common stock, net of issuance costs of $67	$ 1	1,286		1,287
Share-based compensation		304		304
Net loss			(2,497)	(2,497)
Restricted stock units issued to settle management bonus obligations	$ 0	271	0	271
Balance at June 30, 2021 (in shares) at Jun. 30, 2022	17,758,194
Balance at June 30, 2021 at Jun. 30, 2022	$ 18	141,235	(134,519)	6,734
Balance at March 31, 2021 (in shares)	17,758,194
Balance at March 31, 2021	$ 18	141,235	(134,519)	6,734
Restricted stock units vested and issued (in shares)	17,029
Sale of common stock, net of issuance costs of $67 (in shares)	66,704
Sale of common stock, net of issuance costs of $67	$ 0	140	0	140
Share-based compensation		280		280
Net loss			(3,057)	(3,057)
Balance at June 30, 2021 (in shares) at Sep. 30, 2022	17,841,927
Balance at June 30, 2021 at Sep. 30, 2022	$ 18	141,655	(137,576)	4,097
Balance at March 31, 2021 (in shares)	17,841,927
Balance at March 31, 2021	$ 18	$ 141,655	$ (137,576)	$ 4,097