Provision for Income Taxes (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Current:
Federal	$ 174	$ 0
State and local	2	(49)
Current Income Tax Expense (Benefit), Total	176	(49)
Deferred:
Federal	2,460	(767)
State and local	308	(90)
Deferred Income Tax Expense (Benefit)	2,768	(857)
Expense (benefit) for income taxes	$ 2,944	$ (906)