XML 51 R28.htm IDEA: XBRL DOCUMENT v2.4.0.8
Note Receivable - Additional Information (Detail) (USD $)
 1 Months Ended 3 Months Ended 9 Months Ended
May 31, 2013
Jan. 31, 2013
Dec. 31, 2012
Jun. 30, 2013
Jun. 30, 2013
Jan. 24, 2013
Wisepower
Jan. 31, 2011
Wisepower
Accounts Notes And Loans Receivable [Line Items]              
Note Receivable, face amount             $ 2,500,000
Shares received as consideration for the sale of Note           1,570,000  
Note receivable realized amount       260,000 260,000    
Shares issued under public offering   1,667,051 1,800,000.0 1,170,000      
Shares issued under public offering, value 36,000,000 3,300,000 3,800,000 1,200,000 42,400,000    
Note receivable future payment, reserve       $ 260,000 $ 260,000