UNAUDITED CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY - 9 months ended Sep. 30, 2018 - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-in- Capital	Accumulated Deficit
Beginning balance (in shares) at Dec. 31, 2017		39,300,823
Beginning balance at Dec. 31, 2017	$ 19,975	$ 4	$ 53,586	$ (33,615)
Adoption of new accounting standard - ASC 606 at Dec. 31, 2017	1,034			1,034
Beginning balance, adjusted at Dec. 31, 2017	$ 21,009	$ 4	53,586	(32,581)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Exercise of options (in shares)	22,494	22,494
Exercise of options	$ 41		41
Equity-based compensation	1,300		1,300
Issuance of common stock to consultants, net (in shares)		145,466
Issuance of common stock to consultants, net	436		436
Issuance of common stock in private placement, net (in shares)		4,889,217
Issuance of common stock in private placement, net	20,070		20,070
Net loss	(17,658)			(17,658)
Ending balance (in shares) at Sep. 30, 2018		44,358,000
Ending balance at Sep. 30, 2018	$ 25,198	$ 4	$ 75,433	$ (50,239)