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Note 11 - Accrued Closure Costs and Asset Retirement Obligations ("ARO") (Details) - Reported Closure Liabilities (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
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Dec. 31, 2014
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Dec. 31, 2013
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Dec. 31, 2012
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| Reported Closure Liabilities [Abstract] | |||
| Balance as | $ 5,508us-gaap_AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrent | $ 5,222us-gaap_AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrent | $ 11,349us-gaap_AccruedCappingClosurePostClosureAndEnvironmentalCostsNoncurrent |
| Accretion expense | 286us-gaap_AssetRetirementObligationAccretionExpense | 272us-gaap_AssetRetirementObligationAccretionExpense | |
| Adjustment to closure liability | $ (6,399)us-gaap_AssetRetirementObligationRevisionOfEstimate | ||
| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
The estimated amount of costs required as of the balance sheet date to comply with regulatory requirements pertaining to the retirement of a waste management facility, which will be paid after one year or beyond the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of accretion expense recognized during the period that is associated with an asset retirement obligation. Accretion expense measures and incorporates changes due to the passage of time into the carrying amount of the liability. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
Amount of the Increase or Decrease in the amount of the asset retirement obligation during the current period for changes in the amount or timing of the estimated cash flows associated with the settlement of the obligation. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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