Post-effective amendment to a registration statement that is not immediately effective upon filing

Outstanding warrants (Details)

v2.4.0.8
Outstanding warrants (Details) (USD $)
0 Months Ended
Dec. 31, 2012
Oct. 16, 2013
One Group [Member]
Dec. 31, 2012
Minimum [Member]
Dec. 31, 2012
Maximum [Member]
Class of Warrant or Right [Line Items]        
Outstanding warrants to purchase membership units 62,280      
Number of shares exchanged for warrants exercised   5,750,000    
Exercise price of warrants   5.00 22.94 32.00
Merger exchange ratio   8.09 to one    
Minimum price per share per agreement   $ 6.25