Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended			6 Months Ended		12 Months Ended
	Jun. 30, 2016	Mar. 31, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Dec. 31, 2015
Income Taxes [Line Items]
Effective income tax rate including income taxes attributable to the discontinued operations				52.10%	39.20%
Income tax benefit related to stock compensation expense	$ 161,490		$ 210,763	$ 324,843	$ 239,830
Restricted Shares [Member]
Income Taxes [Line Items]
Number of common stock shares permanently surrendered		68,000
Total stock compensation expense		$ 2,300,000
Stock-based compensation expense		1,600,000		$ 1,600,000		$ 676,000
Income tax benefit related to stock compensation expense		$ 0