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Income Taxes - Provision (Benefit) for Income Taxes (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Federal:
Current	$ 41		$ 67
Deferred
Gross Federal	41		67
State:
Current	146	(262)	212	(184)
Deferred	1		2	1
Gross State	147	(262)	214	(183)
Income tax expense (benefit)	$ 188	$ (262)	$ 281	$ (183)

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.