Stockholder's Equity - Schedule of Warrants Outstanding (Details) - Warrant - USD ($)	5 Months Ended	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2018	Jul. 31, 2017	Jul. 31, 2016
Number of Shares
Outstanding at beginning of period (in shares)	768,800	357,010	1,215,385
Expired (in shares)	(356,790)		(166,585)
Granted (in shares)			45,000
Forfeited (in shares)	(55,000)		(325,000)
Exercised (in dollars per share)		(3,400)
Outstanding at end of period (in shares)	357,010	353,610	768,800	1,215,385
Weighted- average Exercise Price
Outstanding at beginning of period (in dollars per share)	$ 12.50	$ 9.78	$ 17.90
Expired (in dollars per share)	14.83		46.37
Granted (in dollars per share)			10.00
Forfeited (in dollars per share)	15.00		15
Outstanding at end of period (in dollars per share)	$ 9.78	9.78	$ 12.50	$ 17.90
Exercisable (in dollars per share)		$ 10.00
Weighted- average Remaining Contractual Term (years)
Outstanding	5 years 6 months 26 days	4 years 7 months 6 days	3 years 15 days	2 years 10 months 10 days
Aggregate Intrinsic Value
Outstanding	$ 4,708,020	$ 1,651,165	$ 1,184,000	$ 0