Stockholders' Equity (Details 2)	12 Months Ended
	Dec. 31, 2018 $ / shares shares
Options Outstanding, Outstanding Number of Options	2,220,868
Options Exercisable, Weighted Average Remaining Life In Years	7 years 1 month 6 days
Options Exercisable, Exercisable Number of Options	1,269,295
Exercise Price 1.24 [Member]
Options Outstanding, Outstanding Exercise Price | $ / shares	$ 1.24
Options Outstanding, Outstanding Number of Options	760,001
Options Exercisable, Weighted Average Remaining Life In Years	6 years 2 months 12 days
Options Exercisable, Exercisable Number of Options	760,001
Exercise Price 1.95 [Member]
Options Outstanding, Outstanding Exercise Price | $ / shares	$ 1.95
Options Outstanding, Outstanding Number of Options	868,782
Options Exercisable, Weighted Average Remaining Life In Years	8 years 6 months
Options Exercisable, Exercisable Number of Options	447,754
Exercise Price 4.00 [Member]
Options Outstanding, Outstanding Exercise Price | $ / shares	$ 4.00
Options Outstanding, Outstanding Number of Options	2,000
Options Exercisable, Exercisable Number of Options	0
Exercise Price 5.10 [Member]
Options Outstanding, Outstanding Exercise Price | $ / shares	$ 5.10
Options Outstanding, Outstanding Number of Options	6,000
Options Exercisable, Exercisable Number of Options	0
Exercise Price 5.19 [Member]
Options Outstanding, Outstanding Exercise Price | $ / shares	$ 5.19
Options Outstanding, Outstanding Number of Options	16,500
Options Exercisable, Exercisable Number of Options	0
Exercise Price 5.25 [Member]
Options Outstanding, Outstanding Exercise Price | $ / shares	$ 5.25
Options Outstanding, Outstanding Number of Options	26,668
Options Exercisable, Weighted Average Remaining Life In Years	7 years 9 months 18 days
Options Exercisable, Exercisable Number of Options	14,584
Exercise Price 6.20 [Member]
Options Outstanding, Outstanding Exercise Price | $ / shares	$ 6.20
Options Outstanding, Outstanding Number of Options	311,499
Options Exercisable, Exercisable Number of Options	0
Exercise Price 6.30 [Member]
Options Outstanding, Outstanding Exercise Price | $ / shares	$ 6.30
Options Outstanding, Outstanding Number of Options	60,000
Options Exercisable, Weighted Average Remaining Life In Years	9 years 6 months
Options Exercisable, Exercisable Number of Options	8,333
Exercise Price 8.72 [Member]
Options Outstanding, Outstanding Exercise Price | $ / shares	$ 8.72
Options Outstanding, Outstanding Number of Options	169,418
Options Exercisable, Weighted Average Remaining Life In Years	9 years 3 months 18 days
Options Exercisable, Exercisable Number of Options	38,623