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INCOME TAXES (Details 3) (USD $)
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Dec. 31, 2014
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Dec. 31, 2013
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| Tax credit carryforward | ||
| Research and development credits | $ 31,735,000us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsResearch | $ 28,869,000us-gaap_DeferredTaxAssetsTaxCreditCarryforwardsResearch |
| Domestic Country [Member] | Research [Member] | ||
| Tax credit carryforward | ||
| Amount of tax credit carryforward |
21,500,000us-gaap_TaxCreditCarryforwardAmount / us-gaap_IncomeTaxAuthorityAxis = us-gaap_DomesticCountryMember / us-gaap_TaxCreditCarryforwardAxis = us-gaap_ResearchMember |
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| State And Local Jurisdiction [Member] | Research [Member] | ||
| Tax credit carryforward | ||
| Amount of tax credit carryforward |
$ 22,000,000us-gaap_TaxCreditCarryforwardAmount / us-gaap_IncomeTaxAuthorityAxis = us-gaap_StateAndLocalJurisdictionMember / us-gaap_TaxCreditCarryforwardAxis = us-gaap_ResearchMember |
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- Definition
Amount before allocation of valuation allowances of deferred tax asset attributable to deductible research tax credit carryforwards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The amount of the tax credit 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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