Annual report pursuant to Section 13 and 15(d)

Debt Agreement (Details)

v3.10.0.1
Debt Agreement (Details) - USD ($)
12 Months Ended
Feb. 05, 2018
Dec. 04, 2015
Sep. 05, 2014
Nov. 30, 2018
Nov. 30, 2017
Debt Instrument [Line Items]          
Line of credit       $ 1,134,726 $ 2,016,355
Interest expense       488,299 505,872
(Payments to) proceeds from line of credit       (881,629) $ (1,261,530)
Line of Credit          
Debt Instrument [Line Items]          
Face amount of debt   $ 3,700,000      
Repayments of debt   3,721,583      
Interest expense   21,583      
Capital Preservation Solutions, LLC          
Debt Instrument [Line Items]          
Borrowing base, percent of accounts receivable     80.00%    
Borrowing base, percent of inventory     50.00%    
Number of common stock issued upon exercise of warrant (shares)     1,892,744    
Exercise period     5 years    
Exercise price of warrants (usd per share) $ 3.17   $ 3.17    
Capital Preservation Solutions, LLC | Additional Paid-in Capital          
Debt Instrument [Line Items]          
Fair value of warrant issued     $ 1,456,400    
Capital Preservation Solutions, LLC | Deferred Financing Fees          
Debt Instrument [Line Items]          
Fair value of warrant issued     1,213,667    
Capital Preservation Solutions, LLC | Debt Discount          
Debt Instrument [Line Items]          
Fair value of warrant issued     $ 242,733    
Capital Preservation Solutions, LLC | Common stock, $.01 par, authorized 15,000,000 shares, issued and outstanding 6,488,982 and 6,038,982 shares, respectively          
Debt Instrument [Line Items]          
Shares owned by entity (shares)     19,958    
Capital Preservation Solutions, LLC | Line of Credit          
Debt Instrument [Line Items]          
Borrowing capacity     $ 5,000,000    
Stated interest rate     6.00%    
Capital Preservation Solutions, LLC | Loans Payable          
Debt Instrument [Line Items]          
Face amount of debt     $ 1,000,000    
Revolving Credit Facility          
Debt Instrument [Line Items]          
Borrowing capacity   $ 5,500,000      
Term   3 years      
Borrowing base, percent of accounts receivable   85.00%      
Borrowing base, percent of inventory   65.00%      
Covenant compliance, minimum coverage ratio   100.00%      
Line of credit       1,134,726  
Interest rate, effective percentage   6.21%      
Borrowings outstanding   $ 4,100,000      
(Payments to) proceeds from line of credit   $ 46,032      
Term Loan          
Debt Instrument [Line Items]          
Line of credit       $ 1,218,750  
LIBOR | Revolving Credit Facility          
Debt Instrument [Line Items]          
Basis spread on variable rate   6.00%      
Credit Agreement | Loans Payable          
Debt Instrument [Line Items]          
Face amount of debt $ 1,500,000        
Monthly installments of debt repayment 31,250        
Long-term debt 1,500,000        
Credit Agreement | Revolving Credit Facility          
Debt Instrument [Line Items]          
Borrowing capacity $ 4,500,000        
Borrowing base, percent of accounts receivable 85.00%        
Borrowing base, percent of inventory 65.00%        
Covenant compliance, minimum coverage ratio 110.00%        
Credit Agreement | Base Rate | Loans Payable          
Debt Instrument [Line Items]          
Basis spread on variable rate 1.00%        
Credit Agreement | Base Rate | Revolving Credit Facility          
Debt Instrument [Line Items]          
Basis spread on variable rate 0.25%        
Credit Agreement | LIBOR | Loans Payable          
Debt Instrument [Line Items]          
Basis spread on variable rate 3.50%        
Credit Agreement | LIBOR | Revolving Credit Facility          
Debt Instrument [Line Items]          
Basis spread on variable rate 2.75%        
Maximum | Credit Agreement | Revolving Credit Facility          
Debt Instrument [Line Items]          
Borrowing capacity $ 4,500,000