Condensed Consolidated Statements of Stockholders' Equity (Deficit) (Unaudited) - USD ($) $ in Thousands	Restricted Stock Units (RSUs) [Member] Board of Directors [Member] Common Stock [Member]	Restricted Stock Units (RSUs) [Member] Board of Directors [Member] Additional Paid-in Capital [Member]	Restricted Stock Units (RSUs) [Member] Board of Directors [Member] Retained Earnings [Member]	Restricted Stock Units (RSUs) [Member] Board of Directors [Member]	Restricted Stock Units (RSUs) [Member] Management [Member] Common Stock [Member]	Restricted Stock Units (RSUs) [Member] Management [Member] Additional Paid-in Capital [Member]	Restricted Stock Units (RSUs) [Member] Management [Member] Retained Earnings [Member]	Restricted Stock Units (RSUs) [Member] Management [Member]	Restricted Stock Units (RSUs) [Member] Common Stock [Member]	Restricted Stock Units (RSUs) [Member] Additional Paid-in Capital [Member]	Restricted Stock Units (RSUs) [Member] Retained Earnings [Member]	Restricted Stock Units (RSUs) [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Total
Balance (in shares) at Dec. 31, 2018													4,845,697
Balance at Dec. 31, 2018													$ 5	$ 90,148	$ (86,361)	$ 3,792
Restricted stock units vested and issued (in shares)									2,268
Share-based compensation														690		690
Net loss															(3,665)	(3,665)
Restricted stock units vested and issued										$ 1		$ 1
Balance (in shares) at Mar. 31, 2019													4,847,965
Balance at Mar. 31, 2019													$ 5	90,839	(90,026)	818
Balance (in shares) at Dec. 31, 2018													4,845,697
Balance at Dec. 31, 2018													$ 5	90,148	(86,361)	3,792
Net loss																(11,208)
Balance (in shares) at Sep. 30, 2019													6,825,183
Balance at Sep. 30, 2019													$ 7	102,755	(97,568)	5,194
Balance (in shares) at Mar. 31, 2019													4,847,965
Balance at Mar. 31, 2019													$ 5	90,839	(90,026)	818
Share-based compensation														696		696
Net loss															(3,750)	(3,750)
Reverse stock split fractional share true up (in shares)													(494)
Balance (in shares) at Jun. 30, 2019													4,847,471
Balance at Jun. 30, 2019													$ 5	91,535	(93,776)	(2,236)
Restricted stock units vested and issued (in shares)													25,158
Share-based compensation														756		756
Net loss															(3,792)	(3,792)
Issuance from sale of common stock, net of issuance costs (in shares)													1,741,667
Issuance from sale of common stock, net of issuance costs													$ 2	9,258		9,260
Restricted stock units vested and issued
Issuance costs from sale of common stock in prior quarter																(1,192)
Issuance of stock and warrants from conversion of convertible notes (in shares)													210,887
Issuance of stock and warrants from conversion of convertible notes														1,206		1,206
Balance (in shares) at Sep. 30, 2019													6,825,183
Balance at Sep. 30, 2019													$ 7	102,755	(97,568)	5,194
Balance (in shares) at Dec. 31, 2019													6,825,183
Balance at Dec. 31, 2019													$ 7	103,433	(101,070)	2,370
Restricted stock units vested and issued (in shares)									23,172
Share-based compensation														941		941
Net loss															(4,594)	(4,594)
Balance (in shares) at Mar. 31, 2020													6,848,355
Balance at Mar. 31, 2020													$ 7	104,374	(105,664)	(1,283)
Balance (in shares) at Dec. 31, 2019													6,825,183
Balance at Dec. 31, 2019													$ 7	103,433	(101,070)	2,370
Net loss																(12,015)
Balance (in shares) at Sep. 30, 2020													12,428,794
Balance at Sep. 30, 2020													$ 12	117,186	(113,085)	4,113
Balance (in shares) at Mar. 31, 2020													6,848,355
Balance at Mar. 31, 2020													$ 7	104,374	(105,664)	(1,283)
Share-based compensation														655		655
Net loss															(3,573)	(3,573)
Issuance from sale of common stock, net of issuance costs (in shares)													5,476,190
Issuance from sale of common stock, net of issuance costs													$ 5	10,335		10,340
Restricted stock units issued		$ 613		$ 613		$ 391		$ 391
Stock grants to former directors (in shares)													29,625
Stock grants to former directors														148		148
Issuance costs from sale of common stock in prior quarter																(1,160)
Balance (in shares) at Jun. 30, 2020													12,425,794
Balance at Jun. 30, 2020													$ 12	116,516	(109,237)	7,291
Restricted stock units vested and issued (in shares)									3,000
Share-based compensation														737		737
Net loss															(3,848)	(3,848)
Restricted stock units vested and issued
Issuance costs from sale of common stock in prior quarter (in shares)
Issuance costs from sale of common stock in prior quarter														(67)		(67)
Balance (in shares) at Sep. 30, 2020													12,428,794
Balance at Sep. 30, 2020													$ 12	$ 117,186	$ (113,085)	$ 4,113