Going Concern and Management's Plans (Details Textual) - USD ($)						1 Months Ended		2 Months Ended	12 Months Ended
	Mar. 24, 2017	Dec. 31, 2016	Sep. 13, 2016	Jun. 27, 2016	Jul. 14, 2015	Jul. 31, 2015	May 31, 2015	Jun. 30, 2016	Dec. 31, 2016	Dec. 31, 2015
Conversion Of Stock [Line Items]
Net proceeds from sale of common stock									$ 4,405,973	$ 17,366,620
Proceeds from issuance of private placement net				$ 9,500,000					9,460,749	$ 0
Proceeds from initial public offering, net of issuance costs							$ 17,100,000
Common Stock [Member] | Merck GHI [Member]
Conversion Of Stock [Line Items]
Stock issued during period, shares, new issues					1,136,364	1,136,364
Net proceeds from sale of common stock					$ 5,000,000
Proceeds from issuance of shares and debt						$ 6,000,000
Shares issued, price per share						$ 4.40
Common Stock [Member] | Promissory Note [Member] | Merck GHI [Member]
Conversion Of Stock [Line Items]
Debt instrument, face amount						$ 1,000,000
Debt instrument, carrying amount		$ 1,000,000							$ 1,000,000
Debt instrument, maturity period									2017-07
Debt instrument, description									If the company is unable to repay the note, negotiate its conversion or extend its term, the assets of the company may be seized, as the note is secured by a lien on all the company’s assets.
At the Market Offering [Member]
Conversion Of Stock [Line Items]
Stock issued during period, value, new issues									$ 4,405,973
At the Market Offering [Member] | Common Stock [Member]
Conversion Of Stock [Line Items]
Stock issued during period, value, new issues									$ 36,199
Stock issued during period, shares, new issues									3,619,863
Private Placement [Member]
Conversion Of Stock [Line Items]
Stock issued during period, value, new issues									$ 9,460,749
Proceeds from issuance of private placement net								$ 9,500,000
Class of warrant or right, number of securities called by warrants or rights				6,790,169				6,790,169
Class of warrant or right, exercise price of warrants or rights				$ 1.14				$ 1.14
Sale of stock, description of transaction									(i) one share of common stock and a detachable stock purchase warrant to purchase an additional 0.75 shares of common stock, or (ii) one share of non-voting convertible preferred stock and a detachable stock purchase warrant to purchase an additional 0.75 shares of common stock, at a price of $1.14 per unit.
Private Placement [Member] | Common Stock [Member]
Conversion Of Stock [Line Items]
Stock issued during period, value, new issues									$ 67,441
Stock issued during period, shares, new issues				6,744,127				6,744,127	6,744,127
Private Placement [Member] | Non-voting Convertible Preferred Stock [Member]
Conversion Of Stock [Line Items]
Stock issued during period, shares, new issues				2,309,428				2,309,428
Cowen and Company, LLC [Member] | Sales Agreement [Member] | Scenario, Plan [Member] | At the Market Offering [Member]
Conversion Of Stock [Line Items]
Stock issued during period, value, new issues			$ 11,500,000
Maximum commission percentage on gross proceeds			3.00%
Net proceeds from sale of common stock		4,400,000							$ 4,400,000
Gross proceeds from sale of common stock		4,700,000							4,700,000
Remaining availability under at the market offering		$ 6,800,000							$ 6,800,000
Cowen and Company, LLC [Member] | Sales Agreement [Member] | Scenario, Plan [Member] | At the Market Offering [Member] | Common Stock [Member]
Conversion Of Stock [Line Items]
Stock issued during period, shares, new issues		3,600,000							3,600,000
Cowen and Company, LLC [Member] | Sales Agreement [Member] | Scenario, Plan [Member] | Maximum [Member] | At the Market Offering [Member]
Conversion Of Stock [Line Items]
Aggregate gross proceeds from issuance of common stock			$ 25,000,000
Cowen and Company, LLC [Member] | Sales Agreement [Member] | Subsequent Event [Member] | Scenario, Plan [Member] | At the Market Offering [Member]
Conversion Of Stock [Line Items]
Net proceeds from sale of common stock	$ 2,100,000
Gross proceeds from sale of common stock	2,200,000
Remaining availability under at the market offering	$ 4,600,000
Cowen and Company, LLC [Member] | Sales Agreement [Member] | Subsequent Event [Member] | Scenario, Plan [Member] | At the Market Offering [Member] | Common Stock [Member]
Conversion Of Stock [Line Items]
Stock issued during period, shares, new issues	2,100,000