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Income Taxes - Provision (Benefit) for Income Taxes (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Federal:
Current	$ 35		$ 102
Deferred
Gross Federal	35		102
State:
Current	128	99	341	(85)
Deferred	1		2	1
Gross State	129	99	343	(84)
Income tax expense (benefit)	$ 164	$ 99	$ 445	$ (84)

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred state and local tax expense (benefit) pertaining to income (loss) from continuing operations.