Income Taxes (Detail) - Component of Income tax expense (benefit) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Current Federal Tax Expense (Benefit)		$ 25
Deferred Federal Income Tax Expense (Benefit)
Total Federal Income Tax Expense (Benefit)		25
Current State and local Tax Expense (Benefit)	16	15
Total State and local Income Tax Expense (Benefit)	16	15
Current Foreign Tax Expense (Benefit)	(212)	385
Deferred Foreign Income Tax Expense (Benefit)	(171)	(134)
Total Foreign Income Tax Expense (Benefit)	(383)	251
Total	(196)	425
Total	(171)	(134)
Total	$ (367)	$ 291