INCOME TAXES	9 Months Ended
Sep. 30, 2015
Income Tax Disclosure [Abstract]
INCOME TAXES	INCOME TAXES Deferred tax assets and deferred tax liabilities are recognized based on temporary differences between the financial reporting and tax basis of assets and liabilities using future enacted rates. A valuation allowance is recorded against deferred tax assets for which the Company determines that it does not meet the criteria under ASC 740. As of December 31, 2014, the Company had federal tax net operating loss carryforwards (NOLs) of $347.4 million, available to reduce future taxable income, which expire at various times beginning in 2018 through 2034. The Company also had federal research and experimentation and orphan drug credit carryforwards of approximately $68.1 million as of December 31, 2014, available to reduce future tax liabilities which will expire at various dates beginning in 2018 through 2034. The Company had state tax net operating loss carryforwards of approximately $54.0 million as of December 31, 2014, available to reduce future state taxable income, which will expire at various dates beginning in 2029 through 2034. The Company also had state research and development and investment tax credit carryforwards of approximately $8.8 million as of December 31, 2014, available to reduce future tax liabilities which expire at various dates beginning in 2015 through 2029. Included in the Company’s NOL carryforward of $347.4 million are approximately $16.7 million of tax deductions from the exercise of stock options at December 31, 2014. The Company has recorded a deferred tax asset of approximately $1.8 million at December 31, 2014 reflecting the benefit of the deduction from the exercise of stock options which has been fully reserved until it is more likely than not that the benefit will be realized. The benefit from these deductions will be recorded as a credit to additional paid-in capital if and when realized through a reduction of taxes paid in cash. As required by ASC 740, management of the Company has evaluated the positive and negative evidence bearing upon the reliability of its deferred tax assets, which are comprised principally of NOL carry forwards, research and experimentation credit carryforwards, and capitalized start up expenditures and research and development expenditures amortizable over ten years straight-line. Management has determined at this time that it is more likely than not that the Company will not recognize the benefits of its federal and state deferred tax assets and, as a result, a valuation allowance of approximately $219.8 million has been established at December 31, 2014. Utilization of the NOLs and tax credit carryforwards may be subject to a substantial annual limitation due to ownership change limitations that have occurred previously or that could occur in the future, as provided by Section 382 of the Internal Revenue Code of 1986 (Section 382), as well as similar state and foreign provisions. Ownership changes may limit the amount of NOLs and tax credit carryforwards that can be utilized annually to offset future taxable income and tax, respectively. In general, an ownership change, as defined by Section 382, results from transactions that increase the ownership of 5% shareholders or public groups in the stock of a corporation by more than 50 percent in the aggregate over a three-year period. The Company has completed studies through December 31, 2014, to determine whether any ownership change has occurred since the Company's formation and has determined that transactions have resulted in two ownership changes, as defined by Section 382. There could be additional ownership changes in the future that could further limit the amount of NOLs and tax credit carryforwards that the Company can utilize. As of December 31, 2014, the Company’s federal tax NOLs available to reduce future taxable income without limitation are $280.9 million, which expire at various times beginning in 2024 through 2034. The Company’s federal research and experimentation and orphan drug credit carryforward as of December 31, 2014 available to reduce future tax liabilities without limitation are $63.3 million, which will expire at various dates beginning in 2024 through 2034. In addition, the Company has NOL and federal tax credits that are subject to limitation and expire at various times beginning in 2018 through 2024. These NOLs and federal tax credits of $67.2 and $4.8 million, respectively, may be utilized in part, subject to an annual limitation. The cumulative annual limitation as of December 31, 2014 was large enough to allow the Company to utilize the $67.2 and $4.8 million of NOL and federal tax credits to currently offset income until expiration. However, additional ownership changes after December 31, 2014 could restrict the use of the Company’s NOLs and federal tax credits.

INCOME TAXES

Deferred tax assets and deferred tax liabilities are recognized based on temporary differences between the financial reporting and tax basis of assets and liabilities using future enacted rates. A valuation allowance is recorded against deferred tax assets for which the Company determines that it does not meet the criteria under ASC 740.

As of December 31, 2014, the Company had federal tax net operating loss carryforwards (NOLs) of $347.4 million, available to reduce future taxable income, which expire at various times beginning in 2018 through 2034. The Company also had federal research and experimentation and orphan drug credit carryforwards of approximately $68.1 million as of December 31, 2014, available to reduce future tax liabilities which will expire at various dates beginning in 2018 through 2034. The Company had state tax net operating loss carryforwards of approximately $54.0 million as of December 31, 2014, available to reduce future state taxable income, which will expire at various dates beginning in 2029 through 2034. The Company also had state research and development and investment tax credit carryforwards of approximately $8.8 million as of December 31, 2014, available to reduce future tax liabilities which expire at various dates beginning in 2015 through 2029.

Included in the Company’s NOL carryforward of $347.4 million are approximately $16.7 million of tax deductions from the exercise of stock options at December 31, 2014. The Company has recorded a deferred tax asset of approximately $1.8 million at December 31, 2014 reflecting the benefit of the deduction from the exercise of stock options which has been fully reserved until it is more likely than not that the benefit will be realized. The benefit from these deductions will be recorded as a credit to additional paid-in capital if and when realized through a reduction of taxes paid in cash.

As required by ASC 740, management of the Company has evaluated the positive and negative evidence bearing upon the reliability of its deferred tax assets, which are comprised principally of NOL carry forwards, research and experimentation credit carryforwards, and capitalized start up expenditures and research and development expenditures amortizable over ten years straight-line. Management has determined at this time that it is more likely than not that the Company will not recognize the benefits of its federal and state deferred tax assets and, as a result, a valuation allowance of approximately $219.8 million has been established at December 31, 2014.

Utilization of the NOLs and tax credit carryforwards may be subject to a substantial annual limitation due to ownership change limitations that have occurred previously or that could occur in the future, as provided by Section 382 of the Internal Revenue Code of 1986 (Section 382), as well as similar state and foreign provisions. Ownership changes may limit the amount of NOLs and tax credit carryforwards that can be utilized annually to offset future taxable income and tax, respectively. In general, an ownership change, as defined by Section 382, results from transactions that increase the ownership of 5% shareholders or public groups in the stock of a corporation by more than 50 percent in the aggregate over a three-year period. The Company has completed studies through December 31, 2014, to determine whether any ownership change has occurred since the Company's formation and has determined that transactions have resulted in two ownership changes, as defined by Section 382. There could be additional ownership changes in the future that could further limit the amount of NOLs and tax credit carryforwards that the Company can utilize.

As of December 31, 2014, the Company’s federal tax NOLs available to reduce future taxable income without limitation are $280.9 million, which expire at various times beginning in 2024 through 2034. The Company’s federal research and experimentation and orphan drug credit carryforward as of December 31, 2014 available to reduce future tax liabilities without limitation are $63.3 million, which will expire at various dates beginning in 2024 through 2034. In addition, the Company has NOL and federal tax credits that are subject to limitation and expire at various times beginning in 2018 through 2024. These NOLs and federal tax credits of $67.2 and $4.8 million, respectively, may be utilized in part, subject to an annual limitation. The cumulative annual limitation as of December 31, 2014 was large enough to allow the Company to utilize the $67.2 and $4.8 million of NOL and federal tax credits to currently offset income until expiration. However, additional ownership changes after December 31, 2014 could restrict the use of the Company’s NOLs and federal tax credits.