Quarterly report pursuant to Section 13 or 15(d)

Subsequent Events (Details)

v3.5.0.2
Subsequent Events (Details) - USD ($)
Oct. 26, 2016
Nov. 07, 2016
Oct. 31, 2016
Mar. 31, 2007
Subsequent Event [Line Items]        
Shares authorized for repurchase (up to) (in shares)       2,500,000
Subsequent Event        
Subsequent Event [Line Items]        
Number of securities purchased by conversion of warrant (in shares) 10,699,999      
Exercise price of warrants (in USD per share) $ 1.68      
Shares authorized for repurchase (up to) (in shares)   10,000,000 10,000,000  
November 2011 Loan | Notes Payable to Banks | Subsequent Event        
Subsequent Event [Line Items]        
Cancellation of indebtedness amount $ 17,976,000      
Outstanding balance on promissory note $ 0