Income Taxes (Details) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013
Deferred tax assets and liabilities [Abstract]
Accruals and prepaids	$ 3,563,000	$ 1,404,000
Intangible assets	619,000	1,163,000
Property and equipment	(770,000)	(507,000)
R&D and other tax credits	2,086,000	1,369,000
Stock compensation	4,163,000	2,151,000
Charitable contributions	1,000	1,000
Federal and state basis difference	114,000	0
Net operating loss	6,382,000	14,663,000
Net deferred tax assets	16,158,000	20,244,000
Valuation allowance	(16,158,000)	(20,244,000)
Deferred tax assets and liabilities, net of valuation allowance	0	0
Reconciliation of the Federal statutory income tax rate [Abstract]
Federal statutory rate	34.00%	34.00%
State taxes, net of federal benefit	9.58%	(2.48%)
Non deductible compensation	5.59%	0.00%
Meals & entertainment	5.55%	0.00%
Stock based compensation - ISO	21.73%	0.00%
Other	(5.92%)	12.73%
Valuation allowance	(58.73%)	(46.73%)
Effective income tax rate	11.80%	(2.48%)
Operating Loss Carryforwards [Line Items]
Net deferred tax assets	16,158,000	20,244,000
Stock compensation	5,676,000
Federal
Deferred tax assets and liabilities [Abstract]
Net deferred tax assets	5,210,000
Operating Loss Carryforwards [Line Items]
Operating loss carry forwards	15,323,000
Net deferred tax assets	5,210,000
State
Deferred tax assets and liabilities [Abstract]
Net deferred tax assets	1,172,000
Operating Loss Carryforwards [Line Items]
Operating loss carry forwards	21,196,000
Net deferred tax assets	$ 1,172,000