Quarterly report pursuant to Section 13 or 15(d)

Note 11 - Subsequent Events (Details Textual)

v3.10.0.1
Note 11 - Subsequent Events (Details Textual)
$ / shares in Units, $ in Thousands
3 Months Ended 6 Months Ended
Jul. 31, 2018
USD ($)
$ / shares
shares
Sep. 30, 2018
USD ($)
$ / shares
shares
Jun. 30, 2018
USD ($)
Jun. 30, 2017
USD ($)
Dec. 31, 2017
USD ($)
Long-term Debt, Total     $ 24,998   $ 28,391
Payments for Repurchase of Common Stock     $ 1,264  
Individual Shareholder and Affiliates [Member] | Scenario, Forecast [Member]          
Treasury Stock, Shares, Acquired | shares   2,100,000      
Shareholder [Member] | Scenario, Forecast [Member]          
Treasury Stock, Shares, Acquired | shares   700,000      
Treasury Stock Acquired, Average Cost Per Share | $ / shares   $ 3.10      
Payments for Repurchase of Common Stock   $ 2,100      
Credit Facility [Member]          
Fixed Charge Coverage Ratio     1.25    
Subsequent Event [Member]          
Stock Repurchase Agreement, Value of Shares to be Repurchased $ 2,800        
Subsequent Event [Member] | Individual Shareholder and Affiliates [Member]          
Treasury Stock, Shares, Acquired | shares 2,200,000        
Treasury Stock Acquired, Average Cost Per Share | $ / shares $ 3.10        
Payments for Repurchase of Common Stock $ 6,700        
Number of Shares Sold to Third Parties on Open Market | shares 36,000        
Subsequent Event [Member] | Credit Facility [Member]          
Fixed Charge Coverage Ratio 1.15        
Subsequent Event [Member] | Credit Facility [Member] | Equipment Line [Member]          
Line of Credit Facility, Maximum Borrowing Capacity $ 6,400        
Debt Instrument, Maturity Date Dec. 31, 2024        
Subsequent Event [Member] | Credit Facility [Member] | Term Loan C [Member]          
Long-term Debt, Total $ 8,600        
Debt Instrument, Maturity Date Dec. 06, 2021