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INCOME TAXES (Details)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Reconciliation of income tax expense (benefit) computed at the statutory federal income tax rate to income taxes as reflected in the financial statements
Federal income tax (benefit) at statutory rate (as a percent)	34.00%	34.00%
Expiration of state net operating losses (as a percent)	(0.00%)	(12.11%)
Permanent items (as a percent)	(0.17%)	(0.01%)
Research and experimental credits (as a percent)	3.74%	4.19%
Change in valuation allowance (as a percent)	(37.57%)	(26.07%)
Income tax expense (benefit) (as a percent)	0.00%	0.00%

X

- Definition

Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to revisions of previously reported income tax expense for the expiration of state net operating losses.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to changes in the valuation allowance for deferred tax assets.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to nondeductible expenses.

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