Annual report pursuant to Section 13 and 15(d)

Stockholders' Equity (Deficit) (Details)

v3.19.1
Stockholders' Equity (Deficit) (Details) - Restricted Stock [Member]
12 Months Ended
Dec. 31, 2018
$ / shares
shares
Number of Units, Unvested Beginning Balance | shares 714,999
Number of Units, Granted | shares 467,978
Number of Units, Vested | shares (78,334)
Number of Units, Unvested Ending Balance | shares 1,104,643
Weighted Average Grant Date Fair Value, Unvested Beginning Balance | $ / shares $ 5.00
Weighted Average Grant Date Fair Value, Granted | $ / shares 3.48
Weighted Average Grant Date Fair Value, Vested | $ / shares 2.05
Weighted Average Grant Date Fair Value, Unvested Ending Balance | $ / shares $ 4.45