Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Tax expense	$ 1,485,000	$ 140,000	$ 2,007,000	$ 219,000
Effective tax rate	46.30%	9.00%	45.20%	29.40%
Deferred tax asset valuation allowance					36,200,000
Pre-tax income or losses period					3 years
Unrecognized tax benefits, penalties and interest expense	20,000	22,000	40,000	43,000
Unrecognized tax benefits	108,000		108,000
Uncertain tax positions increase (decrease)			$ 0