Income Taxes - Summary of Significant Components of Deferred Tax Assets (Detail) - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Income Tax Disclosure [Abstract]
Acquired technology	$ 276,000	$ 317,000
Stock compensation expense	430,000	223,000
Accruals and other	124,000	105,000
Total deferred tax assets	830,000	645,000
Less valuation allowance	$ (830,000)	$ (645,000)