Long-Lived Assets by Geographic Region (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Long-Lived Assets by Geographical Areas [Line Items]
Long-lived assets	$ 2,605	$ 1,616
Israel
Long-Lived Assets by Geographical Areas [Line Items]
Long-lived assets	2,219	1,532
France
Long-Lived Assets by Geographical Areas [Line Items]
Long-lived assets	328
Other
Long-Lived Assets by Geographical Areas [Line Items]
Long-lived assets	$ 58	$ 84