Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - 6 months ended Jun. 30, 2017 - USD ($) $ in Thousands	Common Stock [Member]	Paid-in Capital [Member]	Accumulated Other Comprehensive Loss [Member]	Accumulated Deficit [Member]	Treasury Stock [Member]	Total
Balance at Dec. 31, 2016	$ 17	$ 280,191		$ (236,902)	$ (258)	$ 43,048
Balance, shares at Dec. 31, 2016	16,667,394
Net loss				(795)		(795)
Common stock issued, net of issuance costs	$ 8	13,697				13,705
Common stock issued, net of issuance costs, shares	7,890,271
Common stock issued for investor relations fees		300				300
Common stock issued for investor relations fees, shares	150,000
Stock compensation expense and related share issuances, net of shares withheld for the payment of taxes		38				38
Stock compensation expense and related share issuances, net of shares withheld for the payment of taxes, shares	3,120
Minimum withholding taxes on net share settlements of equity awards		(1)				(1)
Unrealized holding loss on marketable securities			(161)			(161)
Balance at Jun. 30, 2017	$ 25	$ 294,225	$ (161)	$ (237,697)	$ (258)	$ 56,134
Balance, shares at Jun. 30, 2017	24,710,785