Income Taxes (Details Textual) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Income Taxes [Line Items]
Income Tax Expense (Benefit)	$ 800	$ 800
Deferred Tax Assets Tax Credit Forward Research And Development	1,364,000	1,821,000
Federal [Member]
Income Taxes [Line Items]
Income Tax Expense (Benefit)	0	0
Operating Loss Carryforwards	41,455,000
Deferred Tax Assets Tax Credit Forward Research And Development	634,000
California [Member]
Income Taxes [Line Items]
Income Tax Expense (Benefit)	800	800
Operating Loss Carryforwards	1,217,000
Deferred Tax Assets Tax Credit Forward Research And Development	$ 1,107,000