Note 5 - Debt (Details) (USD $) | 3 Months Ended | | 3 Months Ended | | | | | | | 3 Months Ended | |
Mar. 31, 2014 | Dec. 31, 2013 | Mar. 31, 2014 | Mar. 31, 2014 | Mar. 31, 2014 | Jun. 30, 2013 | Mar. 31, 2014 | Mar. 31, 2012 | Mar. 31, 2014 | Mar. 31, 2012 | Mar. 31, 2014 | Mar. 31, 2014 | Mar. 31, 2014 | Mar. 31, 2014 | Mar. 31, 2014 | Mar. 31, 2014 | Mar. 31, 2014 | Mar. 31, 2014 | Mar. 31, 2014 | Mar. 31, 2014 | Mar. 31, 2014 | Mar. 31, 2014 | Mar. 31, 2014 |
Availability Dollar Amount [Member] | ABL Credit Facility [Member] | ABL Credit Facility [Member] | ABL Credit Facility [Member] | ABL Credit Facility [Member] | ABL Credit Facility [Member] | ABL Credit Facility [Member] | ABL Credit Facility [Member] | ABL Credit Facility [Member] | ABL Credit Facility [Member] | ABL Credit Facility [Member] | ABL Credit Facility [Member] | ABL Credit Facility [Member] | ABL Credit Facility [Member] | ABL Credit Facility [Member] | ABL Credit Facility [Member] | ABL Credit Facility [Member] | CTI [Member] | Amortized Banking Fees [Member] | Minimum [Member] | Maximum [Member] |
| Monthly [Member] | London Interbank Offered Rate (LIBOR) [Member] | London Interbank Offered Rate (LIBOR) [Member] | Term Loan [Member] | Term Loan [Member] | Revolving Credit Facility [Member] | Revolving Credit Facility [Member] | | Minimum [Member] | Minimum [Member] | Minimum [Member] | Minimum [Member] | Maximum [Member] | Maximum [Member] | Maximum [Member] | Maximum [Member] | Industrial Revenue Bond [Member] | | | |
| Term Loan [Member] | Term Loan [Member] | Term Loan [Member] | | | | | | Base Rate [Member] | Base Rate [Member] | London Interbank Offered Rate (LIBOR) [Member] | London Interbank Offered Rate (LIBOR) [Member] | Base Rate [Member] | Base Rate [Member] | London Interbank Offered Rate (LIBOR) [Member] | London Interbank Offered Rate (LIBOR) [Member] | | | | |
| | | | | | | | | Term Loan [Member] | Revolving Credit Facility [Member] | Term Loan [Member] | Revolving Credit Facility [Member] | Term Loan [Member] | Revolving Credit Facility [Member] | Term Loan [Member] | Revolving Credit Facility [Member] | | | | |
Note 5 - Debt (Details) [Line Items] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Line of Credit Facility, Maximum Borrowing Capacity (in Dollars) | ' | ' | ' | ' | ' | ' | ' | ' | ' | $315,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Other Long-term Debt (in Dollars) | ' | ' | ' | ' | ' | ' | ' | 64,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Long-term Debt, Gross (in Dollars) | ' | ' | ' | ' | ' | ' | 46,700,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Line of Credit Facility, Current Borrowing Capacity (in Dollars) | ' | ' | ' | ' | ' | ' | ' | ' | 315,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Line Of Credit Facility Covenant Terms Monetary (in Dollars) | ' | ' | 20,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Line of Credit Facility, Covenant Terms, Percentage of Revolver Commitments | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 12.50% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Line of Credit Facility, Amount Outstanding (in Dollars) | ' | ' | ' | ' | 46,700,000 | 53,200,000 | ' | ' | ' | ' | 39,400,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Line of Credit Facility, Covenant Terms, Percentage of Term Loan | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 60.00% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Term Loan Outstanding (in Dollars) | 28,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Line of Credit Facility, Covenant Terms Ratio | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 1.1 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Line of Credit Facility, Interest Rate During Period | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 0.25% | 0.00% | 1.75% | 1.50% | 0.75% | 0.50% | 2.25% | 2.00% | ' | ' | ' | ' |
Line of Credit Facility, Remaining Borrowing Capacity (in Dollars) | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 96,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Prepaid Expense and Other Assets, Current (in Dollars) | 11,439,000 | 12,786,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 3,000,000 | ' | ' |
Derivative, Fixed Interest Rate | 1.21% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Derivative Premium Rate | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 1.75% | 2.25% |
Business Combination, Consideration Transferred, Liabilities Incurred (in Dollars) | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 5,900,000 | ' | ' | ' |
Debt Instrument, Periodic Payment, Principal (in Dollars) | ' | ' | ' | $810,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Debt Instrument, Interest Rate at Period End | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 0.16% | ' | ' | ' |
Interest Rate Swap Agreement | 3.46% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |