Quarterly report pursuant to Section 13 or 15(d)

Debt - Convertible Debt (Details)

v3.7.0.1
Debt - Convertible Debt (Details) - Convertible Debt [Member] - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Dec. 31, 2016
Jun. 29, 2015
Debt Instrument [Line Items]            
Interest expense $ 2,191,797 $ 2,181,958 $ 4,383,594 $ 4,394,948    
Discount Amortization 184,728 185,727 369,456 373,962    
Deferred Debt Issuance Amortization $ 12,069 12,703 $ 24,138 24,958    
7.00% Unsecured Convertible Senior Notes [Member]            
Debt Instrument [Line Items]            
Coupon rate percentage 7.00%   7.00%   7.00% 7.00%
Interest expense $ 1,995,000 $ 1,983,528 $ 3,990,000 $ 3,996,028