CONDENSED CONSOLIDATED STATEMENT OF STOCKHOLDERS' EQUITY - 6 months ended Jun. 30, 2018 - 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	146			146
Issuance of restricted common stock			$ 6	(6)
Issuance of restricted common stock (shares)			600,000
Issuance of common stock from exercise of stock options	$ 74		$ 2	72
Issuance of common stock from exercise of stock options (shares)	173,130		173,130
Net income	$ 2,974				2,974
Foreign currency translation adjustment	4					4
Ending Balance at Jun. 30, 2018	$ 6,686	$ 6	$ 293	$ 284,608	$ (278,150)	$ (71)
Balance (in shares) at Jun. 30, 2018		569	29,253,278