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Note 11 - Accrued Closure Costs and ARO | 12 Months Ended
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Dec. 31, 2015
Notes to Financial Statements |
Asset Retirement Obligation Disclosure [Text Block] | NOTE 11 ACCRUED CLOSURE COSTS AND ARO Accrued closure costs represent our estimated environmental liability to clean up our fixed-based regulated facilities as required by our permits, in the event of closure. Changes to reported closure liabilities for the years ended December 31, 2015 and 2014, were as follows:
Amounts in thousands |  |  |  |
Balance as of December 31, 2013 |  | $ | 5,222 |
Accretion expense |  |  | 286 |
Balance as of December 31, 2014 |  |  | 5,508 |
Accretion expense |  |  | 299 |
Payments |  |  | (331 | )
Adjustment to closure liability |  |  | (175 | )
Balance as of December 31, 2015 |  | $ | 5,301 |
The decreases in closure liabilities in 2015 included approximately $331,000 of costs incurred in connection with the closure of processing unit/equipment at our PFNWR facility and a reduction of approximately $175,000 in closure liabilities at our PFNWR facility resulting from a change in estimated closure costs. The reported closure asset or ARO, is reported as a component of “Net Property and equipment” in the Consolidated Balance Sheet for the years ended December 31, 2015 and 2014 as follows:
Amounts in thousands |  |  |  |
Balance as of December 31, 2013 |  | $ | 2,961 |
Amortization of closure and post-closure asset |  |  | (91 | )
Balance as of December 31, 2014 |  |  | 2,870 |
Amortization of closure and post-closure asset |  |  | (152 | )
Adjustment to closure and post-closure asset |  |  | (143 | )
Balance as of December 31, 2015 |  | $ | 2,575 |
The adjustment to the ARO for 2015 was due to the adjustment made to our closure liability as discussed above.

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- Definition The entire disclosure for an asset retirement obligation and the associated long-lived asset. An asset retirement obligation is a legal obligation associated with the disposal or retirement from service of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7569-110849 + Details
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