Provision (Benefit) for Income Taxes (Detail) (USD $) In Thousands, unless otherwise specified	9 Months Ended
Sep. 30, 2013	Sep. 30, 2012
Current:
Foreign
Federal
State	5	4
Total	5	4
Deferred:
Foreign
Federal	(7)
State	(1)
Total	(8)
Total:
Foreign
Federal	(7)
State	4	4
Total	$ (3)	$ 4

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

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