Note 13 - Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) |
Dec. 31, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Net operating losses | $ 7,288,000 | $ 4,566,000 |
| Environmental and closure reserves | 3,189,000 | 2,497,000 |
| Other | 2,285,000 | 2,800,000 |
| Depreciation and amortization | (162,000) | (1,130,000) |
| Goodwill and indefinite lived intangible assets | (2,362,000) | (5,443,000) |
| Prepaid expenses | (72,000) | (122,000) |
| 10,166,000 | 3,168,000 | |
| Valuation allowance | (12,528,000) | (8,592,000) |
| Net deferred income tax liabilities | $ (2,362,000) | $ (5,424,000) |
| X | ||||||||||
- Definition The different between deferred tax assets and deferred tax liabilities before allocation of valuation allowances of deferred tax assets attributable to deductible temporary differences and carryforwards. No definition available.
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible operating loss carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount, before allocation of valuation allowance, of deferred tax asset attributable to deductible temporary differences, classified as other. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from reserves and accruals. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences without jurisdictional netting. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of deferred tax liability attributable to taxable temporary differences from intangible assets including goodwill. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of deferred tax consequences attributable to taxable temporary differences derived from prepaid expenses. No definition available.
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- Definition Amount of deferred tax liability attributable to taxable temporary differences from property, plant, and equipment. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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