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Net Loss per Share (Details) - shares	1 Months Ended			9 Months Ended
	Jan. 31, 2018	Dec. 31, 2017	Mar. 31, 2017	Sep. 30, 2018	Sep. 30, 2017
Potentially dilutive securities
Anti-dilutive common stock equivalent shares				5,110,486	4,684,604
Restricted Stock
Potentially dilutive securities
Anti-dilutive common stock equivalent shares				288,000	260,784
Outstanding stock options
Potentially dilutive securities
Anti-dilutive common stock equivalent shares				4,822,486	4,423,820
2018 January Offerings
Potentially dilutive securities
Number of common stock issued	1,429,205
2017 December Offering
Potentially dilutive securities
Number of common stock issued		2,265,500
2017 March Offering
Potentially dilutive securities
Number of common stock issued			4,600,000

X

- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

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