Quarterly report pursuant to Section 13 or 15(d)

Long term debt - Narrative (Details)

v3.7.0.1
Long term debt - Narrative (Details)
 3 Months Ended
Feb. 17, 2017
USD ($)
Oct. 24, 2016
USD ($)
$ / shares
shares
Aug. 16, 2016
USD ($)
installment
Aug. 11, 2016
USD ($)
$ / shares
shares
Jun. 27, 2016
USD ($)
$ / shares
shares
Jun. 05, 2015
USD ($)
installment
Jun. 02, 2015
USD ($)
installment
Mar. 31, 2017
USD ($)
installment
Mar. 31, 2016
USD ($)
Dec. 31, 2016
USD ($)
Dec. 17, 2014
USD ($)
Debt Instrument [Line Items]                      
Long-term debt               $ 17,276,002   $ 17,156,033  
Loan discount               (789,250)   (834,500)  
Repayment of equipment financing agreement               82,419 $ 49,341    
Interest expense               137,513 175,014    
Interest costs capitalized               264,947 $ 149,926    
STK Locations                      
Debt Instrument [Line Items]                      
Letters of credit outstanding               $ 1,400,000      
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%      
Long-term debt               $ 4,111,250   4,485,000  
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%        
Long-term debt               4,666,668   5,000,000  
Construction Loans | Equipment Financing Agreements                      
Debt Instrument [Line Items]                      
Face value of debt     $ 712,187     $ 1,000,000          
Number of periodic payments (in installments) | installment     60     60          
Periodic principal payments     $ 13,769     $ 19,686          
Debt interest rate     5.00%     5.00%          
Long-term debt               1,340,675   1,421,033  
Construction Loans | Equipment Finance Agreement 1                      
Debt Instrument [Line Items]                      
Long-term debt               907,000      
Repayment of equipment financing agreement               93,000      
Unsecured Debt | Promissory notes, net                      
Debt Instrument [Line Items]                      
Face value of debt       $ 3,000,000 $ 1,000,000            
Debt interest rate       10.00% 10.00%            
Long-term debt               6,250,000   6,250,000  
Loan discount       $ 360,000 $ 125,000            
Unsecured Debt | Anson October Note [Member]                      
Debt Instrument [Line Items]                      
Face value of debt   $ 2,250,000                  
Debt interest rate   10.00%                  
Long-term debt               2,300,000      
Percent of ownership, limitation with notice   9.99%                  
Common stock | Unsecured Debt | Promissory notes, net                      
Debt Instrument [Line Items]                      
Exercise price of warrants (in dollars per share) | $ / shares       $ 2.61 $ 2.61            
Warrants to purchase common stock (in shares) | shares       300,000 100,000            
Common stock | Unsecured Debt | Anson October Note [Member]                      
Debt Instrument [Line Items]                      
Exercise price of warrants (in dollars per share) | $ / shares   $ 2.39                  
Warrants to purchase common stock (in shares) | shares   340,000                  
American Express Bank, FSB | American Express Loan                      
Debt Instrument [Line Items]                      
Face value of debt $ 1,000,000                    
Long-term debt                   $ 0  
Loan fee 3.50%                    
Repayment rate 6.00%                    
Debt instrument, term 365 days                    
American Express Bank, FSB | Construction Loans | American Express Loan                      
Debt Instrument [Line Items]                      
Long-term debt               $ 907,409