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	$ 105,494	$ 23,763	$ (129,191)	$ 1,066
Stock-based compensation		34		34
Net loss			(781)	(781)
Ending balance, shares at Jun. 30, 2019	79,591,880
Ending balance, amount at Jun. 30, 2019	$ 106,494	23,797	(129,972)	319
Beginning balance, shares at Mar. 31, 2019	79,591,880
Beginning balance, amount at Mar. 31, 2019	$ 106,494	23,778	(129,576)	696
Stock-based compensation		19		19
Net loss			(396)	(396)
Ending balance, shares at Jun. 30, 2019	79,591,880
Ending balance, amount at Jun. 30, 2019	$ 106,494	23,797	(129,972)	319
Beginning balance, shares at Dec. 31, 2019	103,966,880
Beginning balance, amount at Dec. 31, 2019	$ 112,208	23,831	(130,881)	5,158
Stock option exercise, shares	334,887
Stock option exercise, amount	$ 106			106
Stock-based compensation		165		165
Net loss			(1,345)	(1,345)
Ending balance, shares at Jun. 30, 2020	104,301,767
Ending balance, amount at Jun. 30, 2020	$ 112,314	23,996	(132,226)	4,084
Beginning balance, shares at Mar. 31, 2020	104,007,066
Beginning balance, amount at Mar. 31, 2020	$ 112,208	23,890	(131,483)	4,615
Stock option exercise, shares	294,701
Stock option exercise, amount	$ 106			106
Stock-based compensation		106		106
Net loss			(743)	(743)
Ending balance, shares at Jun. 30, 2020	104,301,767
Ending balance, amount at Jun. 30, 2020	$ 112,314	$ 23,996	$ (132,226)	$ 4,084