Consolidated Statements of Shareholders' Equity - USD ($) $ in Thousands	Common Stock	Additional paid in capital	Accumulated (Deficit)	Total
Balance at Dec. 31, 2018	$ 97	$ 53,575	$ (36,851)	$ 16,821
Balance, Shares at Dec. 31, 2018	9,724,826
Shares issued for services		30		30
Shares issued for services, shares	17,960
Stock-based compensation		82		82
Vesting of performance shares previously granted to CEO		250		250
Adoption of ASU 2016-02			171	171
Net income (loss)			233	233
Balance at Jun. 30, 2019	$ 97	53,937	(36,447)	17,587
Balance, Shares at Jun. 30, 2019	9,742,786
Balance at Mar. 31, 2019	$ 97	53,616	(36,864)	16,849
Balance, Shares at Mar. 31, 2019	9,724,826
Shares issued for services		30		30
Shares issued for services, shares	17,960
Stock-based compensation		41		41
Vesting of performance shares previously granted to CEO		250		250
Net income (loss)			417	417
Balance at Jun. 30, 2019	$ 97	53,937	(36,447)	17,587
Balance, Shares at Jun. 30, 2019	9,742,786
Balance at Dec. 31, 2019	$ 98	54,052	(35,642)	18,508
Balance, Shares at Dec. 31, 2019	9,774,546
Stock-based compensation		119		119
Shares issued to directors as compensation		50		50
Shares issued to directors as compensation, shares	52,477
Exercise of warrants		121		121
Exercise of warrants, shares	27,600
Net income (loss)			(15,642)	(15,642)
Balance at Jun. 30, 2020	$ 98	54,342	(51,284)	3,156
Balance, Shares at Jun. 30, 2020	9,854,623
Balance at Mar. 31, 2020	$ 98	54,102	(48,825)	5,375
Balance, Shares at Mar. 31, 2020	9,794,971
Stock-based compensation		100		100
Shares issued to directors as compensation		19		19
Shares issued to directors as compensation, shares	32,052
Exercise of warrants		121		121
Exercise of warrants, shares	27,600
Net income (loss)			(2,459)	(2,459)
Balance at Jun. 30, 2020	$ 98	$ 54,342	$ (51,284)	$ 3,156
Balance, Shares at Jun. 30, 2020	9,854,623