CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY - USD ($) $ in Thousands	Total	Preferred Stock [Member]	Common Stock [Member]	Additional Paid-In Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Loss [Member]
Beginning Balance at Dec. 31, 2017	$ 3,488	$ 6	$ 285	$ 284,396	$ (281,124)	$ (75)
Balance (in shares) at Dec. 31, 2017		569	28,480,148
Stock-based compensation expense	61			61
Net income	1,289				1,289
Ending Balance at Mar. 31, 2018	4,838	$ 6	$ 285	284,457	(279,835)	(75)
Balance (in shares) at Mar. 31, 2018		569	28,480,148
Beginning Balance at Dec. 31, 2018	7,600	$ 6	$ 293	284,751	(277,373)	(77)
Balance (in shares) at Dec. 31, 2018		569	29,253,278
Stock-based compensation expense	71			71
Net income	612				612
Ending Balance at Mar. 31, 2019	$ 8,283	$ 6	$ 293	$ 284,822	$ (276,761)	$ (77)
Balance (in shares) at Mar. 31, 2019		569	29,253,278