STOCKHOLDER'S EQUITY (Details Textual) (USD $)	3 Months Ended		0 Months Ended	1 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 10, 2014	Jan. 31, 2014
Proceeds from Issuance of Common Stock, Net	$ 0	$ 46,694,000
Common Stock [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights				$ 9.00
Stock Issued During Period Due To Warrant Exercise Number				20,000
Stock Issued During Period, Shares, New Issues			1,600,000
Shares Issued, Price Per Share			$ 31.00
Proceeds from Issuance of Common Stock			50,000,000
Proceeds from Issuance of Common Stock, Net			46,700,000
Payments of Stock Issuance Costs			$ 3,300,000
Stock Issued During Period Shares New Issues Due to Exercise of Option to Purchase Additional Shares			200,000