Net Loss per Share (Details) - shares	3 Months Ended	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2019	Sep. 30, 2018
Net Loss per Share (Textual)
Number of antidilutive securities excluded from computation of earnings per share	13,289,644	12,908,523	13,305,049
RSUs [Member]
Net Loss per Share (Textual)
Number of antidilutive securities excluded from computation of earnings per share	1,802,405	2,744,842	1,826,472
Unvested Restricted Stock [Member]
Net Loss per Share (Textual)
Number of antidilutive securities excluded from computation of earnings per share	624,116	624,116	624,116
Earnout Shares [Member]
Net Loss per Share (Textual)
Number of antidilutive securities excluded from computation of earnings per share	1,323,558		1,314,896	[1]
Stock Warrants [Member]
Net Loss per Share (Textual)
Number of antidilutive securities excluded from computation of earnings per share	9,539,565	9,539,565	9,539,565

[1] This number was based on a preliminary calculation of the number of shares estimated to be issued as Earnout Consideration. The calculation and payment were finalized during the three months ended December 31, 2018.