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Note 9 - Senior Notes, Credit Facilities, Note Payable and Capital Leases (Details) - Credit Facilities | 9 Months Ended |
--- | --- | ---
Sep. 30, 2015 | Jun. 30, 2015
London Interbank Offered Rate (LIBOR) [Member] |  |
Interest rates: |  |
Variable rate | 3.25% |
Base Rate [Member] |  |
Interest rates: |  |
Variable rate | 2.25% |
Minimum [Member] |  |
Covenant financial ratios: |  |
Interest coverage ratio (EBITDA/interest expense) | 3.00% | 1.00%
Minimum [Member] | New Facility [Member] | London Interbank Offered Rate (LIBOR) [Member] |  |
Interest rates: |  |
Variable rate | 2.25% |
Minimum [Member] | New Facility [Member] | Base Rate [Member] |  |
Interest rates: |  |
Variable rate | 1.25% |
Maximum [Member] |  |
Covenant financial ratios: |  |
Senior leverage ratio (debt secured by liens/EBITDA) | 2.50% | 1.00%
Leverage ratio (total debt less unencumbered cash/EBITDA) | 4.00% | 1.00%
Maximum [Member] | New Facility [Member] |  |
Interest rates: |  |
Standby fee per annum on undrawn amounts | 0.50% |

X
- References No definition available. + Details
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Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition EBITDA/interest expense. + References No definition available. + Details
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Balance Type: | na
Period Type: | instant

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- References No definition available. + Details
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- Definition Total debt less unencumbered cash/EBITDA. + References No definition available. + Details
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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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Period Type: | duration

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- Details
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- Details
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Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Period Type: |

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- Details
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Namespace Prefix: |
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Balance Type: |
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- Details
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