Condensed Consolidated Statements Of Shareholders' Equity (Deficit) - USD ($) $ in Thousands	Common Stock [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Accumulated Deficit [Member]	Total
Beginning Balance, shares at Dec. 31, 2018	41,464,373
Beginning Balance at Dec. 31, 2018	$ 63,211	$ 296	$ (64,210)	$ (703)
Stock-based compensation, shares	111,488
Stock-based compensation	$ 89			89
Common stock issuance on conversion of notes payable, shares	2,313,976
Common stock issuance on conversion of notes payable	$ 741			741
Exercise of stock options, shares	65,445
Exercise of stock options	$ 26			26
Net loss			(1,372)	(1,372)
Other comprehensive income (loss)		41		41
Ending Balance, shares at Jun. 30, 2019	43,955,282
Ending Balance at Jun. 30, 2019	$ 64,067	337	(65,582)	(1,178)
Beginning Balance, shares at Mar. 31, 2019	42,013,874
Beginning Balance at Mar. 31, 2019	$ 63,415	315	(65,006)	(1,276)
Stock-based compensation	$ 26			26
Common stock issuance on conversion of notes payable, shares	1,875,963
Common stock issuance on conversion of notes payable	$ 600			600
Exercise of stock options, shares	65,445
Exercise of stock options	$ 26			26
Net loss			(576)	(576)
Other comprehensive income (loss)		22		22
Ending Balance, shares at Jun. 30, 2019	43,955,282
Ending Balance at Jun. 30, 2019	$ 64,067	337	(65,582)	$ (1,178)
Beginning Balance, shares at Dec. 31, 2019	61,566,076			61,566,076
Beginning Balance at Dec. 31, 2019	$ 73,773	342	(66,988)	$ 7,127
Stock-based compensation, shares	101,592
Stock-based compensation	$ 67			67
Beneficial conversion feature on paid in-kind interest	$ 6			6
Common stock issuance on conversion of notes payable, shares	0
Net loss			(1,629)	(1,629)
Other comprehensive income (loss)		(39)		$ (39)
Ending Balance, shares at Jun. 30, 2020	61,667,668			61,667,668
Ending Balance at Jun. 30, 2020	$ 73,846	303	(68,617)	$ 5,532
Beginning Balance, shares at Mar. 31, 2020	61,667,668
Beginning Balance at Mar. 31, 2020	$ 73,811	255	(67,879)	6,187
Stock-based compensation	32			32
Beneficial conversion feature on paid in-kind interest	$ 3			3
Common stock issuance on conversion of notes payable, shares	0
Net loss			(738)	(738)
Other comprehensive income (loss)		48		$ 48
Ending Balance, shares at Jun. 30, 2020	61,667,668			61,667,668
Ending Balance at Jun. 30, 2020	$ 73,846	$ 303	$ (68,617)	$ 5,532