Income Taxes - Additional Information (Detail) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Tax expense	$ 522,000	$ 79,000
Effective tax rate	42.30%	9.80%
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
Unrecognized tax benefits	448,000
Uncertain tax positions increase (decrease)	$ 0