Condensed Consolidated Statements Of Shareholders Equity (Deficit) - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Accumulated Deficit [Member]	Total
Beginning Balance, shares at Dec. 31, 2017	41,464,373
Beginning Balance at Dec. 31, 2017	$ 53,822	$ 8,861	$ 391	$ (62,131)	$ 943
Exercise of stock options, shares
Stock-based compensation		49			$ 49
Beneficial conversion feature on convertible debt		350			350
Net loss				(469)	(469)
Other comprehensive income (loss)			(17)		(17)
Ending Balance, shares at Mar. 31, 2018	41,464,373
Ending Balance at Mar. 31, 2018	$ 53,822	9,260	374	(62,600)	856
Stock-based compensation		34			34
Net loss				(363)	(363)
Other comprehensive income (loss)			(27)		(27)
Ending Balance, shares at Jun. 30, 2018	41,464,373
Ending Balance at Jun. 30, 2018	$ 53,822	9,294	347	(62,963)	500
Stock-based compensation		45			45
Net loss				(425)	(425)
Other comprehensive income (loss)			24		24
Ending Balance, shares at Sep. 30, 2018	41,464,373
Ending Balance at Sep. 30, 2018	$ 53,822	9,339	371	(63,388)	144
Stock-based compensation		50			50
Net loss				(822)	(822)
Other comprehensive income (loss)			(75)		$ (75)
Ending Balance, shares at Dec. 31, 2018	41,464,373				41,464,373
Ending Balance at Dec. 31, 2018	$ 53,822	9,389	296	(64,210)	$ (703)
Exercise of stock options, shares
Stock-based compensation, shares	111,488
Stock-based compensation		63			$ 63
Common stock issuance on conversion of notes payable, shares	438,013
Common stock issuance on conversion of notes payable	$ 141				141
Net loss				(796)	(796)
Other comprehensive income (loss)			19		$ 19
Ending Balance, shares at Mar. 31, 2019	42,013,874				42,013,874
Ending Balance at Mar. 31, 2019	$ 53,963	$ 9,452	$ 315	$ (65,006)	$ (1,276)