Summary of Significant Accounting Policies - Schedule of Earnings (Loss) Per Share (Details) - USD ($)	5 Months Ended		12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Jul. 31, 2017	Jul. 31, 2016
Basic:
Net (loss) income	$ 1,379,379	$ 11,515,000	$ 6,580,613	$ (7,814,256)
Diluted:
Net (loss) income	$ 1,379,379	$ 11,515,000	$ 6,580,613	$ (7,814,256)
Basic:
Net income attributable to common stock (in shares)	2,077,663		2,014,540	1,910,489
Effect of dilutive securities
Stock option and warrants (in shares)	2,315,475		221,311
Diluted:
Net income attributable to common stock and assumed conversions (in shares)	4,393,138		2,235,851	1,910,489
Basic:
Net income attributable to common stock (in dollars per share)	$ 0.66	$ 6	$ 3.27	$ (4.09)
Diluted:
Net income attributable to common stock and assumed conversions (in dollars per share)	$ 0.31	$ 5.21	$ 2.94	$ (4.09)