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 income (loss)			(34,021)			(34,021)
Other comprehensive income				68		68
Compensation expenses for share-based payment arrangements		2,903				2,903
Acquisition of subsidiary, net of issuance costs	6	11,214				11,220
Stock Issued During Period, Shares, Acquisitions	4,472,000
Sale of common stock in public offering, net of underwriting discounts and commissions and offering expenses	12	40,067				40,079
Public Offering shares issued	9,775,000
Acquisition of subsidiary escrow shares returned						0
Forfeitures of restricted stock (in shares)	(1,000)
Exercise of stock options		71				71
Exercise of stock options (in shares)	14,000
Balance, ending at Sep. 30, 2013		547,868	(458,126)	(192)	(2,741)	86,888
Balance, ending (in shares) at Sep. 30, 2013	61,025,000				(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 income (loss)			16,589			16,589
Compensation expenses for share-based payment arrangements		2,875				2,875
Sale of common stock in public offering, net of underwriting discounts and commissions and offering expenses	12	37,447				37,459
Public Offering shares issued	8,750,000					8,750,000
Acquisition of subsidiary escrow shares returned - shares	(19,000)
Acquisition of subsidiary escrow shares returned		(82)				(82)
Balance, ending at Sep. 30, 2014	$ 91	$ 588,750	$ (450,088)	$ (192)	$ (2,741)	$ 135,820
Balance, ending (in shares) at Sep. 30, 2014	69,756,000				(200,000)