Reconciliation between Actual Tax Expense (Benefit) and Expected Tax Expense (Benefit) (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Income Tax Reconciliation [Line Items]
Loss before income taxes	$ (475)	$ (494)	$ (2,595)
Expected income tax expense at 34%	(162)	(168)	(882)
Difference in rates on earnings of foreign operations	185	148	83
Stock-based compensation and other nondeductible expenses	43	33	27
State taxes and credits (net of federal benefit)	63	134	50
Change in valuation allowance	(15)	(7)
Unremitted earnings of foreign subsidiaries	(24)	(5)	(19)
Exclusion of earnings of foreign affiliates	(30)	(22)	(54)
Foreign dividend			192
Shortfall on vested restricted shares that exceed pool of windfall tax benefits		32
Intercompany profit elimination	(14)
Other	2	(2)	22
Income tax provision (benefit)	$ 48	$ 143	$ (581)