Income Taxes - Schedule of Income Taxes at Statutory Federal Income Tax Rate and Income Taxes (Details) - USD ($)	3 Months Ended				12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Disclosure [Abstract]
Income tax benefit at the federal statutory rate					$ (1,221,000)	$ (1,316,000)	$ (2,166,000)
State and local income taxes, net of effect on federal taxes					(800,000)	(441,000)	(848,000)
Increase (decrease) in valuation allowance					1,505,000	(8,509,000)	2,287,000
Incentive stock options/forfeitures					(22,000)	(11,000)	624,000
Change in Federal tax rate						10,848,000
Research and development tax credits						(1,390,000)
Permanent differences and other					538,000	508,000	103,000
Income Tax Expense (Benefit)	$ (311,000)					$ (311,000)