Common Stock (Details Narrative) - USD ($)				1 Months Ended					9 Months Ended	12 Months Ended
	Jul. 20, 2017	Jan. 19, 2017	Jul. 11, 2016	Aug. 31, 2017	Jul. 31, 2017	Jun. 30, 2017	Apr. 30, 2017	Mar. 31, 2017	Sep. 30, 2017	Dec. 31, 2016
Class of Stock [Line Items]
Common Stock Issued for Exercised Warrants, shares		18,157
Shares Converted into Common Stock								625,013
Shares of common stock sold in public offering							4,928,572
Share price							$ 3.50
Net proceeds from public offering							$ 16,000,000
Underwriting discounts, commissions and estimated offering expenses							$ 1,214,000
Series A-2 Convertible Preferred Stock [Member]
Class of Stock [Line Items]
Shares Converted into Common Stock								(625,013)	625,013	1,099,124
Shares of common stock sold in public offering			1,724,137
Warrants [Member]
Class of Stock [Line Items]
Common Stock Issued for Exercised Warrants, shares		(181,575)
Exercise price of options granted						$ 2.98
Total proceeds of warrant holder received					$ 2,921,000	$ 321,000
Options exercised					914,514	107,755
Warrants [Member] | Investor [Member] | Exercise Agreement [Member]
Class of Stock [Line Items]
Exercise price of options granted	$ 2.98
Amended exercise price of options granted	$ 2.78
Total proceeds of warrant holder received	$ 7,688,000
Options exercised	2,765,500
Underwriting discounts, commissions and estimated offering expenses	$ 77,000
Percentage of ownership reduced	4.99%
Inducement expense	$ 553,000
Warrants [Member] | Minimum [Member]
Class of Stock [Line Items]
Exercise price of options granted					$ 2.90
Warrants [Member] | Maximum [Member]
Class of Stock [Line Items]
Exercise price of options granted					$ 3.40
2014 Warrants [Member] | Investor [Member]
Class of Stock [Line Items]
Percentage of ownership reduced				4.99%
Inducement expense				$ 407,000
2014 Warrants [Member] | Investor [Member] | Exercise Agreement [Member]
Class of Stock [Line Items]
Exercise price of options granted				$ 3.40
Amended exercise price of options granted				$ 3.20
Total proceeds of warrant holder received				$ 5,937,000
Options exercised				880,672
2016 Warrants [Member] | Investor [Member] | Exercise Agreement [Member]
Class of Stock [Line Items]
Exercise price of options granted				$ 2.90
Amended exercise price of options granted				$ 2.70
Total proceeds of warrant holder received				$ 1,154,976
Options exercised				5,937,000