Note 7 - Borrowings (Details Textual) $ in Millions | Jan. 28, 2015USD ($) | Oct. 21, 2014USD ($) | Sep. 27, 2005USD ($) | Mar. 31, 2015USD ($) | Sep. 30, 2015USD ($) |
Senior Notes [Member] | | | | | |
Senior Notes | | | $ 200 | | |
Debt Instrument, Term | | | 10 years | | |
Term Loan [Member] | Maximum [Member] | | | | | |
Line of Credit Facility, Maximum Borrowing Capacity | | $ 50 | | | |
Term Loan [Member] | | | | | |
Line of Credit Facility, Maximum Borrowing Capacity | $ 35 | | | | |
Proceeds from Issuance of Long-term Debt | | | | $ 35 | |
Revolving Credit Facility [Member] | Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member] | Average Availability Option [Member] | | | | | |
Debt Instrument, Basis Spread on Variable Rate | 1.75% | | | | |
Revolving Credit Facility [Member] | Maximum [Member] | Additional Margin on Variable Rate Option [Member] | | | | | |
Debt Instrument, Basis Spread on Variable Rate | 0.75% | | | | |
Revolving Credit Facility [Member] | Maximum [Member] | | | | | |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage | 0.25% | | | | |
Revolving Credit Facility [Member] | Minimum [Member] | London Interbank Offered Rate (LIBOR) [Member] | Average Availability Option [Member] | | | | | |
Debt Instrument, Basis Spread on Variable Rate | 1.50% | | | | |
Revolving Credit Facility [Member] | Minimum [Member] | Additional Margin on Variable Rate Option [Member] | | | | | |
Debt Instrument, Basis Spread on Variable Rate | 0.50% | | | | |
Revolving Credit Facility [Member] | Minimum [Member] | | | | | |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage | 0.15% | | | | |
Revolving Credit Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Average Availability Option B [Member] | | | | | |
Debt Instrument, Basis Spread on Variable Rate | 1.00% | | | | |
Revolving Credit Facility [Member] | Federal Funds Effective Swap Rate [Member] | Average Availability Option B [Member] | | | | | |
Debt Instrument, Basis Spread on Variable Rate | 0.50% | | | | |
Revolving Credit Facility [Member] | | | | | |
Line of Credit Facility, Maximum Borrowing Capacity | $ 115 | | | | |
Proceeds from Issuance of Long-term Debt | | | | 40 | |
Debt Instrument, Covenant, Percentage of Total Revolving Credit | 20.00% | | | | |
Letter of Credit [Member] | Maximum [Member] | | | | | |
Line of Credit Facility, Interest Rate During Period | 1.75% | | | | |
Letter of Credit [Member] | Minimum [Member] | | | | | |
Line of Credit Facility, Interest Rate During Period | 1.50% | | | | |
Maximum [Member] | London Interbank Offered Rate (LIBOR) [Member] | Rent Adjusted Leverage Ratio Option [Member] | Term Loan [Member] | | | | | |
Debt Instrument, Basis Spread on Variable Rate | 2.25% | | | | |
Maximum [Member] | Additional Margin on Variable Rate Option [Member] | Term Loan [Member] | | | | | |
Debt Instrument, Basis Spread on Variable Rate | 1.25% | | | | |
Minimum [Member] | London Interbank Offered Rate (LIBOR) [Member] | Rent Adjusted Leverage Ratio Option [Member] | Term Loan [Member] | | | | | |
Debt Instrument, Basis Spread on Variable Rate | 1.75% | | | | |
Minimum [Member] | Additional Margin on Variable Rate Option [Member] | Term Loan [Member] | | | | | |
Debt Instrument, Basis Spread on Variable Rate | 0.75% | | | | |
London Interbank Offered Rate (LIBOR) [Member] | Average Availability Option B [Member] | Term Loan [Member] | | | | | |
Debt Instrument, Basis Spread on Variable Rate | 1.00% | | | | |
Federal Funds Effective Swap Rate [Member] | Rent Adjusted Leverage Ratio Option [Member] | Term Loan [Member] | | | | | |
Debt Instrument, Basis Spread on Variable Rate | 0.50% | | | | |
Minimum Fixed Charge Coverage Ratio for Year One [Member] | Term Loan [Member] | | | | | |
Fixed Charge Coverage Ratio | 1 | | | | |
Minimum Fixed Charge Coverage Ratio Thereafter [Member] | Term Loan [Member] | | | | | |
Fixed Charge Coverage Ratio | 1.1 | | | | |
Minimum Fixed Charge Coverage Ratio for Covenant to Cease to Apply [Member] | Term Loan [Member] | | | | | |
Fixed Charge Coverage Ratio | 1.25 | | | | |
Minimum Availability Needed to Avoid Re-Triggering Fixed Charge Coverage Ratio Covenant [Member] | Term Loan [Member] | | | | | |
Debt Instrument, Covenant, Percentage of Total Revolving Credit | 15.00% | | | | |
Term Loan [Member] | | | | | |
Debt Instrument, Interest Rate, Effective Percentage | | | | | 2.00% |
Debt Instrument, Amortization Period | 15 years | | | | |
Debt Covenant, Fixed Charge Coverage Ratio, Maximum Outstanding Term Loans | $ 17.5 | | | | |
Debt Instrument, Term | | 5 years | | | |
Line of Credit Facility, Maximum Borrowing Capacity | | $ 150 | | | |
Debt Issuance Cost | | | | $ 1.5 | |
Fixed Charge Coverage Ratio | | | | | 1.4 |
Line of Credit Facility, Average Availability | | | | | 65.00% |
Letters of Credit Outstanding, Amount | | | | | $ 0.2 |
Line of Credit Facility, Remaining Borrowing Capacity | | | | | $ 74.8 |