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The Company, Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Earnings Per Share [Abstract]
Series C Convertible Preferred Stock, shares outstanding (in shares)	0		0		2,103
Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract]
Potential common stock equivalents (in shares)	5,177,269	5,227,130	5,588,598	6,078,554
Series C Convertible Preferred Shares [Member]
Earnings Per Share [Abstract]
Series C Convertible Preferred Stock, shares outstanding (in shares)	0		0
Loss attributable to each class	$ 0	$ (20)	$ (22)	$ (196)
Weighted average number of shares outstanding during the period (in shares)	0	2,105	491	5,412
Basic and diluted loss per share (in dollars per share)	$ 0	$ (9.58)	$ (43.73)	$ (36.14)
Common Stock [Member]
Earnings Per Share [Abstract]
Loss attributable to each class	$ (1,254)	$ (840)	$ (3,947)	$ (3,079)
Weighted average number of shares outstanding during the period (in shares)	33,754,909	32,903,287	33,551,070	31,663,355
Basic and diluted loss per share (in dollars per share)	$ (0.04)	$ (0.03)	$ (0.12)	$ (0.10)
Common Stock Purchase Warrants [Member]
Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract]
Potential common stock equivalents (in shares)	149,901	1,073,319	530,923	1,776,216
Restricted Stock Units [Member]
Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract]
Potential common stock equivalents (in shares)	119,330	120,773	149,637	123,675
Common Stock Options [Member]
Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract]
Potential common stock equivalents (in shares)	4,908,038	4,033,038	4,908,038	4,178,663