Quarterly report pursuant to Section 13 or 15(d)

Long term debt - Narrative (Details)

v3.5.0.2
Long term debt - Narrative (Details)
3 Months Ended 6 Months Ended
Jun. 27, 2016
USD ($)
$ / shares
shares
Jun. 30, 2016
USD ($)
installment
Jun. 30, 2015
USD ($)
Jun. 30, 2016
USD ($)
installment
Jun. 30, 2015
USD ($)
Dec. 31, 2015
USD ($)
Jun. 05, 2015
USD ($)
Jun. 02, 2015
USD ($)
Dec. 17, 2014
USD ($)
Debt Instrument [Line Items]                  
Long-term debt   $ 12,614,531   $ 12,614,531   $ 12,636,763      
Interest expense   155,945 $ 89,164 330,959 $ 157,252        
Interest costs capitalized   62,310 $ 89,164 212,236 $ 157,252        
STK Locations                  
Debt Instrument [Line Items]                  
Letters of credit outstanding   $ 1,500,000   $ 1,500,000          
Line of Credit                  
Debt Instrument [Line Items]                  
Line of credit facility, revolving credit conversion to term loan                 $ 6,395,071
Medium-term Notes | Term Loan Agreement                  
Debt Instrument [Line Items]                  
Face value of debt                 $ 7,475,000
Number of periodic payments (in installments) | installment       60          
Periodic principal payments       $ 124,583          
Debt interest rate   5.00%   5.00%          
Long-term debt   $ 5,232,500   $ 5,232,500   5,980,000      
Medium-term Notes | Second Term Loan Agreement                  
Debt Instrument [Line Items]                  
Face value of debt               $ 6,000,000  
Number of periodic payments (in installments) | installment   54              
Periodic principal payments   $ 111,111.11              
Debt interest rate   5.00%   5.00%          
Long-term debt   $ 5,666,667   $ 5,666,667   6,000,000      
Construction Loans | Equipment Financing Agreement                  
Debt Instrument [Line Items]                  
Face value of debt             $ 1,000,000    
Number of periodic payments (in installments) | installment       60          
Periodic principal payments       $ 19,686          
Debt interest rate   5.00%   5.00%          
Long-term debt   $ 840,364   $ 840,364   $ 656,763      
Deposits   840,364   840,364          
Unsecured Debt | Promissory note, net                  
Debt Instrument [Line Items]                  
Face value of debt $ 1,000,000                
Debt interest rate 10.00%                
Long-term debt   $ 875,000   $ 875,000          
Loan discount $ 125,000                
Common stock | Unsecured Debt | Promissory note, net                  
Debt Instrument [Line Items]                  
Warrants to purchase common stock (in shares) | shares 100,000                
Exercise price of warrants (in dollars per share) | $ / shares $ 2.61