Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Components Of Income Tax Expense Benefit [Line Items]
Computed “expected” tax-benefit - Federal	$ (14,870)	$ (6,727)
Computed “expected” tax-benefit - State	(1,732)	(783)
Adjustment of “expected” tax-benefit to actual	199	(687)
Meals, entertainment and other	8	13
Non-deductible stock-based compensation	877	789
Fair Market Value adjustment - Warrants	1,447	(235)
Change in valuation allowance	14,071	7,630
Income tax expense	$ 0	$ 0