CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) (USD $) In Thousands, except Share data	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Total
Balance, beginning at Dec. 31, 2012	$ 61	$ 493,613	$ (424,105)	$ (260)	$ (2,741)	$ 66,568
Balance, beginning (in shares) at Dec. 31, 2012	46,765,000				(200,000)
Net loss			(11,258)			(11,258)
Other comprehensive income				8		8
Compensation expenses for share-based payment arrangements		749				749
Acquisition of subsidiary, net of issuance costs	6	11,214				11,220
Stock Issued During Period, Shares, Acquisitions	4,472,000
Exercise of stock options	0	3				3
Exercise of stock options (in shares)	1,000
Balance, ending at Mar. 31, 2013	67	505,579	(435,363)	(252)	(2,741)	67,290
Balance, ending (in shares) at Mar. 31, 2013	51,238,000				(200,000)
Balance, beginning at Dec. 31, 2013	79	548,510	(466,677)	(192)	(2,741)	78,979
Balance, beginning (in shares) at Dec. 31, 2013	61,025,000				(200,000)
Net loss			(9,313)			(9,313)
Compensation expenses for share-based payment arrangements		773				773
Sale of common stock in public offering, net of underwriting discounts and commissions ($2,415) and offering expenses ($380)	12	37,443				37,455
Public Offering shares issued	8,750,000					8,750,000
Balance, ending at Mar. 31, 2014	$ 91	$ 586,726	$ (475,990)	$ (192)	$ (2,741)	$ 107,894
Balance, ending (in shares) at Mar. 31, 2014	69,775,000				(200,000)