CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock	Additional Paid in Capital	Accumulated Deficit	Total
Beginning balance, shares at Dec. 31, 2018	79,591,880
Beginning balance, amount at Dec. 31, 2018	$ 106,494	$ 23,763	$ (129,191)	$ 1,066
Stock-based compensation		15		15
Net loss			(385)	(385)
Ending balance, shares at Mar. 31, 2019	79,591,880
Ending balance, amount at Mar. 31, 2019	$ 106,494	23,778	(129,576)	696
Beginning balance, shares at Dec. 31, 2019	103,966,880
Beginning balance, amount at Dec. 31, 2019	$ 112,208	23,831	(13,088)	5,158
Stock option exercise, shares	40,186
Stock option exercise, amount				0
Stock-based compensation		59		59
Net loss			(602)	(602)
Ending balance, shares at Mar. 31, 2020	104,007,066
Ending balance, amount at Mar. 31, 2020	$ 112,208	$ 23,890	$ (131,483)	$ 4,615