Stockholders’ Equity (Details) - USD ($)	Sep. 19, 2018	Sep. 30, 2018	Dec. 31, 2017
Preferred Stock
Preferred stock, Outstanding		0	0
Preferred stock, Authorized		2,000,000	2,000,000
Preferred Stock, Shares Issued		0	0
Common Stock
Common stock issued on exercise of stock options (in shares)	5,000
Amount of common stock issued on exercise of stock options	$ 15,450
Exercised (in dollars per share)	$ 3.09
Common stock repurchased (in shares)	4,130
Amount of common stock repurchased	$ 17,428
Share price of common shares withheld	$ 4.22