Income Taxes (Details 5) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2014
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Federal income tax purposes | |
Operating Loss Carryforwards | |
NOL carryforwards |
$ 55,671us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityNameAxis = us-gaap_InternalRevenueServiceIRSMember |
Alternative minimum tax credit carryforwards |
875env_AlternativeMinimumTaxCreditCarryforwardAmount / us-gaap_IncomeTaxAuthorityNameAxis = us-gaap_InternalRevenueServiceIRSMember |
Deferred Tax Assets, in Process Research and Development |
534us-gaap_DeferredTaxAssetsInProcessResearchAndDevelopment / us-gaap_IncomeTaxAuthorityNameAxis = us-gaap_InternalRevenueServiceIRSMember |
State income tax purposes | |
Operating Loss Carryforwards | |
NOL carryforwards |
36,586us-gaap_OperatingLossCarryforwards / us-gaap_IncomeTaxAuthorityNameAxis = us-gaap_StateAndLocalJurisdictionMember |
Alternative minimum tax credit carryforwards |
22env_AlternativeMinimumTaxCreditCarryforwardAmount / us-gaap_IncomeTaxAuthorityNameAxis = us-gaap_StateAndLocalJurisdictionMember |
Deferred Tax Assets, in Process Research and Development |
$ 675us-gaap_DeferredTaxAssetsInProcessResearchAndDevelopment / us-gaap_IncomeTaxAuthorityNameAxis = us-gaap_StateAndLocalJurisdictionMember |
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- Definition
Represents the amount of alternative minimum tax credit carryforwards that does not expire. No definition available.
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from in-process research and development costs expensed in connection with a business combination. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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