Equity (Detail) - Accumulated Other Comprehensive Income (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	$ (233)
Other comprehensive income before reclassifications	530
Amounts reclassified from accumulated other comprehensive income	(301)
Net current year other comprehensive income	229	802
Ending balance	(4)	(233)
Pension Plan Items [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(627)
Other comprehensive income before reclassifications	179
Amounts reclassified from accumulated other comprehensive income	71
Net current year other comprehensive income	250
Ending balance	(377)
Post Employment Benefit Items [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	429
Other comprehensive income before reclassifications	339
Amounts reclassified from accumulated other comprehensive income	(372)
Net current year other comprehensive income	(33)
Ending balance	396
Foreign Currency Items [Member]
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(35)
Other comprehensive income before reclassifications	12
Amounts reclassified from accumulated other comprehensive income	0
Net current year other comprehensive income	12
Ending balance	$ (23)