Quarterly report pursuant to Section 13 or 15(d)

Note 6 - Debt (Details Textual)

v3.10.0.1
Note 6 - Debt (Details Textual)
$ in Thousands, shares in Millions
9 Months Ended
Jul. 31, 2018
USD ($)
shares
Jul. 30, 2018
Sep. 30, 2018
USD ($)
Dec. 31, 2017
USD ($)
Stock Repurchase Agreement, Shares to be Repurchased | shares 2.8      
Long-term Debt, Total     $ 33,436 $ 28,391
Equipment Line [Member]        
Long-term Debt, Total     1,060
Term Loan [Member]        
Long-term Debt, Total     32,500 $ 28,511
Credit Facility [Member]        
Fixed Charge Coverage Ratio 1.15 1.25    
Credit Facility [Member] | Equipment Line [Member]        
Line of Credit Facility, Maximum Borrowing Capacity $ 6,400      
Long-term Line of Credit, Total     1,100  
Credit Facility [Member] | Term Loan C [Member]        
Long-term Debt, Total $ 8,600      
Credit Facility [Member] | Term Loan [Member]        
Long-term Debt, Total     $ 32,500  
Credit Facility [Member] | Eurodollar Loan [Member]        
Debt Instrument, Interest Rate, Effective Percentage     4.75%  
LIBOR Rate     2.25%  
Credit Facility [Member] | Eurodollar Loan [Member] | London Interbank Offered Rate (LIBOR) [Member]        
Debt Instrument, Basis Spread on Variable Rate     2.50%  
Credit Facility [Member] | Eurodollar Loan [Member] | Minimum [Member] | London Interbank Offered Rate (LIBOR) [Member]        
Debt Instrument, Basis Spread on Variable Rate     2.00%  
Credit Facility [Member] | Eurodollar Loan [Member] | Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member]        
Debt Instrument, Basis Spread on Variable Rate     3.00%  
Credit Facility [Member] | CB Floating Rate Loan [Member]        
Debt Instrument, Interest Rate, Effective Percentage     4.75%  
Lender Prime Rate     5.25%  
Credit Facility [Member] | CB Floating Rate Loan [Member] | London Interbank Offered Rate (LIBOR) [Member]        
Debt Instrument, Basis Spread on Variable Rate, Before Margin Rate     2.50%  
Credit Facility [Member] | CB Floating Rate Loan [Member] | Prime Rate [Member]        
Debt Instrument, Basis Spread on Variable Rate     (0.50%)  
Credit Facility [Member] | CB Floating Rate Loan [Member] | Minimum [Member] | Greater of Prime Rate or LIBOR Plus 2.5% [Member]        
Debt Instrument, Basis Spread on Variable Rate     (1.00%)  
Credit Facility [Member] | CB Floating Rate Loan [Member] | Maximum [Member] | Greater of Prime Rate or LIBOR Plus 2.5% [Member]        
Debt Instrument, Basis Spread on Variable Rate     0.25%