Reconciliation Between Effective Tax Rate and U.S. Statutory Rate (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Tax Disclosure [Abstract]
Income before taxes on income	$ 7,473	$ 15,747	$ 21,470
Theoretical tax at U.S. statutory rate-	2,541	5,511	7,515
Foreign income taxes at rates other than U.S. rate	(2,610)	(3,957)	(5,622)
Subpart F	633	529	221
Non-deductible items	169	346	355
Valuation allowance	(111)	(380)	(545)
Other, net	166	13	984
Taxes on income	$ 788	$ 2,062	$ 2,908
Effective tax rate	11.00%	13.00%	14.00%