Summary of Income Tax Expense (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Deferred income tax expense:
Total income tax expense	$ 163	$ 583
Continuing Operations
Current income tax expense:
Federal		512
State	168	151
Total current income tax expense	168	663
Deferred income tax expense:
Federal
State	(5)	(83)
Total deferred income tax expense	(5)	(83)
Total income tax expense	$ 163	$ 580