Stockholder's Equity - Schedule of Pre-2017 Non-Qualified Stock Options Nonvested Share Activity (Details) - Pre-2017 Non-Qualified Stock Options - $ / shares	5 Months Ended	12 Months Ended
	Dec. 31, 2017	Jul. 31, 2017	Jul. 31, 2016
Number of Shares
Non-vested, beginning balance (in shares)	339,871	90,833	37,500
Granted (in shares)	0	320,000	1,507,500
Vested (in shares)	(50,969)	(70,962)	(1,454,167)
Non-vested, ending balance (in shares)	288,902	339,871	90,833
Weighted Average Grant Date Fair Value Per Share
Non-vested, beginning balance (in dollars per share)	$ 7.93	$ 7.27	$ 3.85
Granted (in dollars per share)	0.00	7.70	7.06
Vested (in dollars per share)	9.29	6.70	7.00
Non-vested, ending balance (in dollars per share)	$ 7.87	$ 7.93	$ 7.27