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Note 9 - Debt (Details Textual)
1 Months Ended 9 Months Ended 12 Months Ended
Jul. 28, 2016
USD ($)
Jul. 28, 2016
CAD ($)
Jun. 19, 2012
USD ($)
Oct. 31, 2018
USD ($)
Oct. 31, 2018
CAD ($)
Oct. 31, 2018
USD ($)
Oct. 31, 2017
USD ($)
Jan. 31, 2018
USD ($)
Sep. 19, 2018
USD ($)
Jan. 31, 2018
CAD ($)
Debt and Capital Lease Obligations, Total       $ 21,600,000   $ 21,600,000        
Debt Instrument, Increase (Decrease), Net, Total           5,800,000        
Repayments of Lines of Credit           35,152,000 $ 26,055,000      
Line of Credit, Current       $ 13,662,000   13,662,000   $ 7,273,000    
Canadian Mortgage Note [Member]                    
Proceeds from Issuance of Debt $ 6,100,000 $ 8,000,000                
Debt Instrument, Maturity Date Dec. 23, 2042 Dec. 23, 2042                
Debt Instrument, Interest Rate, Effective Percentage 6.10% 6.10%                
Debt Instrument, Periodic Payment, Interest $ 28,000 $ 37,000                
Debt Instrument, Periodic Payment, Principal $ 20,000 $ 27,000                
Mortgage Note Secured by Tennessee Manufacturing Facility [Member]                    
Debt Instrument, Interest Rate, Stated Percentage     4.50%              
Debt Instrument, Maturity Date     Jul. 01, 2027              
Debt Instrument, Issuance Date     Jun. 19, 2012              
Proceeds from Issuance of Secured Debt     $ 1,800,000              
Debt Instrument, Periodic Payment, Total     $ 13,000              
Debt Instrument, Adjustable Interest Rate Period, Commencement Date     Jun. 19, 2022              
Debt Instrument, Interest Rate, Maximum Annual Increase     2.00%              
Debt Instrument, Adjustable Interest Rate, Ceiling     18.00%              
Debt Instrument, Adjustable Interest Rate, Floor     4.50%              
Three 2017 Capital Leases [Member]                    
Debt Instrument, Periodic Payment, Total               100,000    
Capital Lease Obligations, Total               $ 800,000   $ 1,100,000
Debt Instrument, Maturity Date Range, Start               Apr. 30, 2021    
Debt Instrument, Maturity Date Range, End               Sep. 29, 2022    
Maximum [Member] | Three 2017 Capital Leases [Member]                    
Debt Instrument, Interest Rate, Stated Percentage               7.80%   7.80%
Minimum [Member] | Three 2017 Capital Leases [Member]                    
Debt Instrument, Interest Rate, Stated Percentage               4.00%   4.00%
Revolving Lines, North America [Member]                    
Debt Instrument, Term       3 years 3 years          
Line of Credit Facility, Maximum Borrowing Capacity       $ 18,000,000   18,000,000     $ 15,000,000  
Repayments of Lines of Credit       $ 3,773,823 $ 4,794,528          
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage       0.375% 0.375%          
Line of Credit Facility, Capital Expenditures Restrictions       $ 3,000,000   3,000,000        
Line of Credit Facility, Covenant Terms, EBITDA, Term One       1,807,000   1,807,000        
Line of Credit Facility, Covenant Terms, EBITDA, Term Two       $ 2,462,000   $ 2,462,000        
Line of Credit Facility, Covenant Terms, EBITDA Ratio, Term One       1.1   1.1        
Line of Credit Facility, Covenant Terms, EBITDA Ratio, Term Two       1.1   1.1        
Debt Instrument, Default Rate       2.00%   2.00%        
Line of Credit, Current       $ 13,700,000   $ 13,700,000        
Debt, Weighted Average Interest Rate       6.45%   6.45%        
Line of Credit Facility, Current Borrowing Capacity       $ 2,900,000   $ 2,900,000        
Line of Credit Facility, Expiration Date       Sep. 20, 2021 Sep. 20, 2021          
Revolving Lines, North America [Member] | Maximum [Member]                    
Line of Credit Facility, Interest Rate at Period End       7.75%   7.75%        
Revolving Lines, North America [Member] | Minimum [Member]                    
Line of Credit Facility, Interest Rate at Period End       5.78%   5.78%        
Letter of Credit [Member]                    
Repayments of Lines of Credit       $ 154,500            
Foreign Revolving Lines [Member]                    
Line of Credit Facility, Maximum Borrowing Capacity       9,100,000   $ 9,100,000        
Line of Credit, Current       $ 500,000   $ 500,000        
Debt, Weighted Average Interest Rate       6.14%   6.14%        
Letters of Credit Outstanding, Amount       $ 6,600,000   $ 6,600,000        
Line of Credit Facility, Remaining Borrowing Capacity       $ 2,100,000   $ 2,100,000        
Foreign Revolving Lines [Member] | EIBOR [Member]                    
Debt Instrument, Basis Spread on Variable Rate           3.50%        
Foreign Revolving Lines [Member] | Maximum [Member]                    
Line of Credit Facility, Interest Rate at Period End       6.14%   6.14%        
Foreign Revolving Lines [Member] | Minimum [Member]                    
Line of Credit Facility, Interest Rate at Period End       6.11%   6.11%        
Debt Instrument, Interest Rate, Stated Percentage       4.50%   4.50%