STATEMENT OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical)
12 Months Ended
Dec. 31, 2011
Net proceeds subject to possible redemption, shares 7,322,869
First Issuance
 
Sale of common stock, issuance date Jan. 28, 2011
Second Issuance
 
Sale of common stock, issuance date Apr. 18, 2011