Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies (Lease Obligations) (Details)

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Commitments and Contingencies (Lease Obligations) (Details) - USD ($)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Commitments and Contingencies Disclosure [Abstract]    
Rent expense $ 1,059,749 $ 1,436,902
Sub lease income 363,000 345,000
Gain on lease cancellation $ 423,998