Income Taxes - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Disclosure [Abstract]
U.S. Federal income tax rate	(34.00%)	(34.00%)	34.00%
Net deferred tax asset, valuation allowance	$ 8,140,000
Cumulative pre-tax loss position period	3 years
Federal net operating loss	1,900,000
Federal net operating loss expiration period	2034
Uncertain Tax Positions	$ 0	$ 0	$ 0