Quarterly report pursuant to Section 13 or 15(d)

Note 6 - Borrowings (Details Textual)

v3.5.0.2
Note 6 - Borrowings (Details Textual)
$ in Thousands
1 Months Ended 9 Months Ended
Jan. 28, 2015
USD ($)
Oct. 21, 2014
USD ($)
Nov. 30, 2015
USD ($)
Sep. 30, 2016
USD ($)
Jun. 30, 2016
USD ($)
Mar. 31, 2015
USD ($)
Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]            
Debt Instrument, Basis Spread on Variable Rate 1.75%          
Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member]            
Debt Instrument, Basis Spread on Variable Rate 2.25%          
Term Loan [Member] | London Interbank Offered Rate (LIBOR) [Member]            
Debt Instrument, Basis Spread on Variable Rate 1.00%          
Term Loan [Member] | Federal Funds Effective Swap Rate [Member]            
Debt Instrument, Basis Spread on Variable Rate 0.50%          
Term Loan [Member] | Additional Margin on Variable Rate Option [Member] | Minimum [Member]            
Debt Instrument, Basis Spread on Variable Rate 0.75%          
Term Loan [Member] | Additional Margin on Variable Rate Option [Member] | Maximum [Member]            
Debt Instrument, Basis Spread on Variable Rate 1.25%          
Term Loan [Member]            
Long-term Debt $ 35,000   $ 17,300 $ 15,583 $ 16,167  
Debt Instrument, Interest Rate, Effective Percentage       2.3125%    
Debt Instrument, Amortization Period 15 years          
Debt Instrument, Covenant, Minimum Fixed Charge Coverage Ratio 1.1          
Debt Covenant, Fixed Charge Coverage Ratio, Maximum Outstanding Term Loans $ 17,500          
Debt Instrument, Covenant, Minimum Fixed Charge Coverage Ratio for Covenant to Cease to Apply 1.25          
Debt Instrument, Covenant, Minimum Percentage of Total Revolving Credit to Avoid Triggering Fixed Charge Coverage Ratio Covenant 15.00%          
Repayments of Debt     $ 16,500      
Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]            
Debt Instrument, Basis Spread on Variable Rate 1.50%          
Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member]            
Debt Instrument, Basis Spread on Variable Rate 1.75%          
Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member]            
Debt Instrument, Basis Spread on Variable Rate 1.00%          
Revolving Credit Facility [Member] | Federal Funds Effective Swap Rate [Member]            
Debt Instrument, Basis Spread on Variable Rate 0.50%          
Revolving Credit Facility [Member] | Additional Margin on Variable Rate Option [Member] | Minimum [Member]            
Debt Instrument, Basis Spread on Variable Rate 0.50%          
Revolving Credit Facility [Member] | Additional Margin on Variable Rate Option [Member] | Maximum [Member]            
Debt Instrument, Basis Spread on Variable Rate 0.75%          
Revolving Credit Facility [Member] | Minimum [Member]            
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage 0.15%          
Revolving Credit Facility [Member] | Maximum [Member]            
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage 0.25%          
Revolving Credit Facility [Member]            
Long-term Debt       $ 25,000 25,000  
Line of Credit Facility, Maximum Borrowing Capacity $ 115,000          
Debt Instrument, Interest Rate, Effective Percentage       2.0625%    
Debt Instrument, Covenant, Percentage of Total Revolving Credit 20.00%          
Letter of Credit [Member] | Minimum [Member]            
Line of Credit Facility, Interest Rate During Period 1.50%          
Letter of Credit [Member] | Maximum [Member]            
Line of Credit Facility, Interest Rate During Period 1.75%          
Debt Instrument, Term   5 years        
Debt Agreement, Maximum Borrowing Capacity   $ 150,000        
Long-term Debt       $ 41,088 41,838  
Debt Issuance Costs, Net           $ 1,500
Line of Credit Facility, Average Availability       65.00%    
Letters of Credit Outstanding, Amount       $ 100 200  
Line of Credit Facility, Remaining Borrowing Capacity       $ 89,900 $ 89,800