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Accounts Receivable and Allowance for Bad Debt (Summary of Accounts Receivable) (Details) - USD ($)
Oct. 18, 2015
Apr. 24, 2015
Receivables [Abstract]    
Accounts receivable $ 46,443,860 $ 51,233,576
Allowance for bad debt (876,581) (664,201)
Accounts receivable, net $ 45,567,279 $ 50,569,375