REGISTERED DIRECT SALE OF COMMON STOCK (Details Textual) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2012	Dec. 31, 2012	Jan. 05, 2012
Aggregate Offering Price Of Shares To Be Issued		$ 20,000,000
Stock Authorized Under Shelf Registration Statement		100,000,000	63,950,000
Proceeds from Issuance of Common Stock	23,700,000
Payments of Stock Issuance Costs	$ 1,600,000
Common Stock [Member]
Common stock issued during period, shares	4,989,275