CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) shares in Thousands, $ in Thousands	Total	Preferred Stock	Common Stock	Additional Paid-In Capital	Accumulated Deficit
Beginning balance, amount at Dec. 31, 2015	$ 23,404	$ 2	$ 27	$ 42,859	$ (19,484)
Beginning balance (in shares) at Dec. 31, 2015		1,976	27,051
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock based compensation	360			360
Net loss	(2,463)				(2,463)
Ending balance, amount at Jun. 30, 2016	21,301	$ 2	$ 27	43,219	(21,947)
Ending balance (in shares) at Jun. 30, 2016		1,976	27,051
Beginning balance, amount at Dec. 31, 2016	26,223	$ 1	$ 31	49,625	(23,434)
Beginning balance (in shares) at Dec. 31, 2016		976	30,860
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock based compensation	341			341
Net loss	(2,993)				(2,993)
Ending balance, amount at Jun. 30, 2017	$ 23,571	$ 1	$ 31	$ 49,966	$ (26,427)
Ending balance (in shares) at Jun. 30, 2017		976	30,860