Income Taxes - Components of Net Deferred Taxes (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Income Tax Disclosure [Abstract]
Net operating loss	$ 4,469,000	$ 4,212,000
Stock-based compensation	2,168,000	2,103,000
Accrued interest expense	202,000	150,000
Allowance for doubtful accounts	64,000	47,000
Deferred lease liability	88,000	70,000
Total deferred tax assets	6,991,000	6,582,000
Less: valuation allowance	(6,991,000)	(6,582,000)
Net deferred taxes