Investment In Joint Ventures (Schedule Of Losses From Joint Ventures) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012		Jun. 30, 2011
Investment In Joint Ventures [Abstract]
Equity method investment losses	$ (152)	$ (88)	$ (273)	[1]	$ (161)	[1]

[1] The Company recorded a loss of $136,000 and $161,000 in ZAP Hangzhou, and a loss of $137,000 and $0 in Shanghai Zapple for the periods ended June 30, 2012 and 2011 respectively. These losses relate to the investment in a non-consolidated joint ventures accounted for under the equity method of accounting.