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Bank Debt (Details 1) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Dec. 31, 2016
Dec. 31, 2015
Bank Debt [Abstract]            
Payments required by interest rate swaps $ 10,044 $ 14,984 $ 21,720 $ 30,184 $ 58,346 $ 32,515
Other comprehensive income (loss), net of taxes $ (8,476) $ (30,217) $ 1,594 $ (95,290) $ 26,354 $ (26,925)