Note 7 - Long-Term Obligations (Details) (USD $) | 0 Months Ended | 3 Months Ended | 9 Months Ended | |
Aug. 02, 2013 | Sep. 30, 2013 | Sep. 30, 2012 | Sep. 30, 2013 | Sep. 30, 2012 | Dec. 31, 2012 |
Note 7 - Long-Term Obligations (Details) [Line Items] | ' | ' | ' | ' | ' | ' |
Line of Credit Facility, Maximum Borrowing Capacity (in Dollars) | $225,000,000 | ' | ' | ' | ' | ' |
Long-term Debt (in Dollars) | ' | 123,500,000 | ' | 123,500,000 | ' | 130,000,000 |
Line of Credit Facility, Option to Increase Maximum Capacity (in Dollars) | 75,000,000 | ' | ' | ' | ' | ' |
Prepayment Of Debt Percentage Of Outstanding Principal Amount | 100.00% | ' | ' | ' | ' | ' |
Debt Instrument Percentage of Pledge of Stock | 100.00% | ' | ' | ' | ' | ' |
Percentage Of Capital Stock Of Direct Foreign Subsidiary Secured By Pledges | 65.00% | ' | ' | ' | ' | ' |
Payments of Financing Costs (in Dollars) | ' | 2,100,000 | ' | 2,083,000 | 53,000 | ' |
Gains (Losses) on Extinguishment of Debt (in Dollars) | ' | -525,000 | 0 | -525,000 | 0 | ' |
Interest Expense (in Dollars) | ' | 1,916,000 | 1,990,000 | 5,407,000 | 5,806,000 | ' |
Long-term Debt [Member] | ' | ' | ' | ' | ' | ' |
Note 7 - Long-Term Obligations (Details) [Line Items] | ' | ' | ' | ' | ' | ' |
Deferred Finance Costs, Net (in Dollars) | ' | 1,800,000 | ' | 1,800,000 | ' | ' |
Interest Expense (in Dollars) | ' | 254,000 | ' | ' | ' | ' |
December 31, 2014 to September 30, 2015 [Member] | Term Loan [Member] | ' | ' | ' | ' | ' | ' |
Note 7 - Long-Term Obligations (Details) [Line Items] | ' | ' | ' | ' | ' | ' |
Percentage Of Debt Principal Repayment Over Certain Period | 5.00% | ' | ' | ' | ' | ' |
December 31, 2015 to September 30, 2016 [Member] | Term Loan [Member] | ' | ' | ' | ' | ' | ' |
Note 7 - Long-Term Obligations (Details) [Line Items] | ' | ' | ' | ' | ' | ' |
Percentage Of Debt Principal Repayment Over Certain Period | 7.50% | ' | ' | ' | ' | ' |
December 31, 2016 to September 30, 2017 [Member] | Term Loan [Member] | ' | ' | ' | ' | ' | ' |
Note 7 - Long-Term Obligations (Details) [Line Items] | ' | ' | ' | ' | ' | ' |
Percentage Of Debt Principal Repayment Over Certain Period | 10.00% | ' | ' | ' | ' | ' |
December 31, 2017 to June 30, 2018 [Member] | Term Loan [Member] | ' | ' | ' | ' | ' | ' |
Note 7 - Long-Term Obligations (Details) [Line Items] | ' | ' | ' | ' | ' | ' |
Percentage Of Debt Principal Repayment Over Certain Period | 11.25% | ' | ' | ' | ' | ' |
Term Loan [Member] | ' | ' | ' | ' | ' | ' |
Note 7 - Long-Term Obligations (Details) [Line Items] | ' | ' | ' | ' | ' | ' |
Long-term Debt (in Dollars) | 60,000,000 | ' | ' | ' | ' | ' |
Revolving Credit Facility [Member] | ' | ' | ' | ' | ' | ' |
Note 7 - Long-Term Obligations (Details) [Line Items] | ' | ' | ' | ' | ' | ' |
Long-term Debt (in Dollars) | 165,000,000 | ' | ' | ' | ' | ' |
Proceeds from Lines of Credit (in Dollars) | 16,000,000 | ' | ' | ' | ' | ' |
Swingline Loans [Member] | ' | ' | ' | ' | ' | ' |
Note 7 - Long-Term Obligations (Details) [Line Items] | ' | ' | ' | ' | ' | ' |
Line of Credit Facility, Sublimit Capacity (in Dollars) | 10,000,000 | ' | ' | ' | ' | ' |
Letter of Credit [Member] | ' | ' | ' | ' | ' | ' |
Note 7 - Long-Term Obligations (Details) [Line Items] | ' | ' | ' | ' | ' | ' |
Line of Credit Facility, Sublimit Capacity (in Dollars) | 25,000,000 | ' | ' | ' | ' | ' |
Prior Senior Credit Facility [Member] | ' | ' | ' | ' | ' | ' |
Note 7 - Long-Term Obligations (Details) [Line Items] | ' | ' | ' | ' | ' | ' |
Deferred Finance Costs, Net (in Dollars) | ' | 849,000 | ' | 849,000 | ' | ' |
Gains (Losses) on Extinguishment of Debt (in Dollars) | ' | $525,000 | ' | ' | ' | ' |
Minimum [Member] | LIBOR Loans [Member] | ' | ' | ' | ' | ' | ' |
Note 7 - Long-Term Obligations (Details) [Line Items] | ' | ' | ' | ' | ' | ' |
Debt Instrument, Basis Spread on Variable Rate | 1.75% | ' | ' | ' | ' | ' |
Minimum [Member] | Base Rate Loans [Member] | ' | ' | ' | ' | ' | ' |
Note 7 - Long-Term Obligations (Details) [Line Items] | ' | ' | ' | ' | ' | ' |
Debt Instrument, Basis Spread on Variable Rate | 0.75% | ' | ' | ' | ' | ' |
Minimum [Member] | Revolving Credit Facility [Member] | ' | ' | ' | ' | ' | ' |
Note 7 - Long-Term Obligations (Details) [Line Items] | ' | ' | ' | ' | ' | ' |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage | 0.25% | ' | ' | ' | ' | ' |
Minimum [Member] | Letter of Credit [Member] | ' | ' | ' | ' | ' | ' |
Note 7 - Long-Term Obligations (Details) [Line Items] | ' | ' | ' | ' | ' | ' |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage | 1.75% | ' | ' | ' | ' | ' |
Maximum [Member] | LIBOR Loans [Member] | ' | ' | ' | ' | ' | ' |
Note 7 - Long-Term Obligations (Details) [Line Items] | ' | ' | ' | ' | ' | ' |
Debt Instrument, Basis Spread on Variable Rate | 2.50% | ' | ' | ' | ' | ' |
Maximum [Member] | Base Rate Loans [Member] | ' | ' | ' | ' | ' | ' |
Note 7 - Long-Term Obligations (Details) [Line Items] | ' | ' | ' | ' | ' | ' |
Debt Instrument, Basis Spread on Variable Rate | 1.50% | ' | ' | ' | ' | ' |
Maximum [Member] | Revolving Credit Facility [Member] | ' | ' | ' | ' | ' | ' |
Note 7 - Long-Term Obligations (Details) [Line Items] | ' | ' | ' | ' | ' | ' |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage | 0.50% | ' | ' | ' | ' | ' |
Maximum [Member] | Letter of Credit [Member] | ' | ' | ' | ' | ' | ' |
Note 7 - Long-Term Obligations (Details) [Line Items] | ' | ' | ' | ' | ' | ' |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage | 2.50% | ' | ' | ' | ' | ' |