Provision for Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Provision For Income Taxes [Line Items]
Net operating loss carry forwards	$ 94,000,000
Deferred tax benefit	$ 0	$ 0
Minimum [Member]
Provision For Income Taxes [Line Items]
Net operating loss expiration, Year	2016
Maximum [Member]
Provision For Income Taxes [Line Items]
Net operating loss expiration, Year	2035