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Debt (Detail Textuals) - USD ($)
Jun. 30, 2016
Jun. 30, 2015
Aug. 31, 2014
Oct. 31, 2010
Credit Facility [Line Items]        
Long-term debt $ 0 $ 0    
Secured Debt        
Credit Facility [Line Items]        
Credit facility, maximum borrowing capacity       $ 7,000,000.0
Credit facility balance     $ 5,700,000  
Revolving Credit Facility        
Credit Facility [Line Items]        
Credit facility, maximum borrowing capacity       $ 3,000,000.0