Quarterly report pursuant to Section 13 or 15(d)

Term Loan Agreements and Long Term Debt - Term Loan Agreement and Revolving Loan (Details)

v3.8.0.1
Term Loan Agreements and Long Term Debt - Term Loan Agreement and Revolving Loan (Details)
 9 Months Ended 12 Months Ended
Oct. 26, 2016
Oct. 25, 2016
USD ($)
item
Nov. 12, 2014
USD ($)
Sep. 30, 2017
USD ($)
Dec. 31, 2016
USD ($)
Nov. 13, 2014
Debt Instrument [Line Items]            
Exit fee percent   5.00%        
Debt issuance costs       $ 29,472    
Three Peaks Loan            
Debt Instrument [Line Items]            
Payments of Debt Extinguishment Costs   $ 2,300,000        
MidCap Loan            
Debt Instrument [Line Items]            
Proceeds from issuance of debt   25,000,000        
Debt issuance costs   800,000        
Term Loan Agreement | Three Peaks Loan            
Debt Instrument [Line Items]            
Face amount     $ 25,000,000      
Interest payable, percent     9.00%      
Interest rate spread     1.00%      
Effective interest rate (as a percent)           10.00%
Term Loan Agreement | MidCap Loan            
Debt Instrument [Line Items]            
Face amount   $ 21,000,000   $ 21,000,000 $ 21,000,000  
Number of months requiring principal and interest payments | item   30        
Interest payable, percent   8.00%   8.00% 8.00%  
Interest rate spread   0.50%   0.50% 0.50%  
Effective interest rate (as a percent)   0.25%   8.50% 8.50%  
Revolver Credit facility            
Debt Instrument [Line Items]            
Interest payable, percent       5.00%    
Revolver Credit facility | MidCap Loan            
Debt Instrument [Line Items]            
Interest payable, percent   4.50%   4.50% 4.50%  
Interest rate spread   0.50%   0.50% 0.50%  
Effective interest rate (as a percent)       5.00% 5.00%  
Prepayment fee percent, year one 3.00%          
Prepayment fee percent, year two 2.00%          
Prepayment fee percent, thereafter 1.00%          
Maximum line of credit amount   $ 10,000,000   $ 10,000,000 $ 10,000,000  
Collateral management fee, percent   0.50%        
Unused line fee, percent   0.50%        
Percent of Borrowing Base which accrues interest   30.00%        
Revolver Credit facility | MidCap Loan | Maximum            
Debt Instrument [Line Items]            
Maximum line of credit amount   $ 15,000,000