Quarterly report pursuant to Section 13 or 15(d)

Long term debt - Schedule of Debt and Maturities (Details)

v3.5.0.2
Long term debt - Schedule of Debt and Maturities (Details) - USD ($)
Jun. 30, 2016
Dec. 31, 2015
Debt Instrument [Line Items]    
Total long term debt $ 12,614,531 $ 12,636,763
Less: Current portion of Long Term Debt 3,026,324 2,680,116
Long Term Debt, net of Current Portion 9,588,207 9,956,647
Future minimum loan payments:    
2016 1,505,893  
2017 3,022,920  
2018 3,032,876  
2019 3,043,342  
2020 1,134,500  
Thereafter 875,000  
Total long term debt 12,614,531 12,636,763
Medium-term Notes | Term Loan Agreements    
Debt Instrument [Line Items]    
Total long term debt 10,899,167 11,980,000
Future minimum loan payments:    
Total long term debt 10,899,167 11,980,000
Construction Loans | Equipment Financing Agreement    
Debt Instrument [Line Items]    
Total long term debt 840,364 656,763
Future minimum loan payments:    
Total long term debt 840,364 $ 656,763
Unsecured Debt | Promissory note, net    
Debt Instrument [Line Items]    
Total long term debt 875,000  
Future minimum loan payments:    
Total long term debt $ 875,000