Net Income Per Share - Schedule of Basic and Diluted Earnings (Loss) Per Share (Details) - USD ($)	3 Months Ended								12 Months Ended
	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Numerator
Net income attributable to common shareholders	$ 4,532,750	$ 3,068,354	$ 9,876,848	$ 2,140,532	$ 1,500,761	$ 2,419,143	$ 2,307,634	$ 563,345	$ 19,618,484	$ 6,790,883	$ 23,986,060
Denominator
Weighted average number of common shares—Basic (in shares)									33,126,469	33,034,480	32,810,375
Effect of dilutive securities:
Total weighted average dilutive securities (in shares)									52,066	76,080	50,856
Weighted average number of common shares and dilutive potential common shares used in diluted EPS (in shares)									33,178,535	33,110,560	32,861,231
Net income per common share - Basic (in dollars per share)	$ 0.14	$ 0.09	$ 0.30	$ 0.06	$ 0.05	$ 0.07	$ 0.07	$ 0.02	$ 0.59	$ 0.21	$ 0.73
Net income per common share - Diluted (in dollars per share)	$ 0.14	$ 0.09	$ 0.30	$ 0.06	$ 0.07	$ 0.07	$ 0.07	$ 0.05	$ 0.59	$ 0.21	$ 0.73
Contingent restricted stock grants
Effect of dilutive securities:
Weighted average dilutive securities (in shares)									52,066	53,546	9,378
Stock Options
Effect of dilutive securities:
Weighted average dilutive securities (in shares)									0	22,534	41,478