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Note 9 - Senior Notes, Credit Facility and Capital Leases - Credit Facility (Details) | 6 Months Ended |
--- | --- | ---
Jun. 30, 2017 | Dec. 31, 2016
Leverage ratio (total debt less unencumbered cash/EBITDA) |  |  | 5
Maximum [Member] |  |  |
Senior leverage ratio (debt secured by liens/EBITDA) |  | 2.5 |
Leverage ratio (total debt less unencumbered cash/EBITDA) | [1] | 4 |
Interest coverage ratio (EBITDA/interest expense) |  | 3 |
New Facility [Member] |  |  |
Standby fee per annum on undrawn amounts |  | 0.50% |
New Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member] |  |  |
Variable rate |  | 2.25% |
New Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member] |  |  |
Variable rate |  | 3.25% |
New Facility [Member] | Base Rate [Member] | Minimum [Member] |  |  |
Variable rate |  | 1.25% |
New Facility [Member] | Base Rate [Member] | Maximum [Member] |  |  |
Variable rate |  | 2.25% |
[1] | The leverage ratio was amended to be 5.00:1 for 2016, and reverted back to 4.00:1 effective January 1, 2017.

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- Definition EBITDA/interest expense. + References No definition available. + Details
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Balance Type: | na
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- Definition Total debt less unencumbered cash/EBITDA. + References No definition available. + Details
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Balance Type: | na
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- Definition Debt secured by liens/EBITDA. + References No definition available. + Details
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- Definition The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility. + References No definition available. + Details
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- Details
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