Stockholders' Equity (Details)	12 Months Ended
	Dec. 31, 2018 $ / shares shares
Number of Shares
Unvested at beginning | shares	114,236
Restricted stock granted | shares	15,640
Restricted stock vested | shares
Restricted stock forfeited | shares	(9,280)
Unvested at end | shares	120,596
Weighted Average Grant-Date Fair Value per Share
Unvested at beginning | $ / shares	$ 8.75
Restricted stock granted | $ / shares	4.55
Restricted stock vested | $ / shares
Restricted stock forfeited | $ / shares	8.73
Unvested at end | $ / shares	$ 8.34