Income Taxes - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Income Tax Disclosure [Abstract]
Income tax benefits	$ (490,000)	$ (635,000)
Effective tax rate	39.10%	40.30%
Deferred tax asset valuation allowance	$ 4,500,000		$ 4,500,000
Pre-tax income or losses period	3 years
Unrecognized tax benefits, penalties and interest expense	$ 0	$ 2,000
Uncertain tax positions increase (decrease)	$ 0