INVESTMENT IN JOINT VENTURES (Summary of Financial Information) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Subsidiary or Equity Method Investee [Line Items]
Assets	$ 115,964	$ 121,488
Liabilities	87,017	65,893
Shanghai Zapple [Member]
Subsidiary or Equity Method Investee [Line Items]
Assets	1,472	1,325
Liabilities	867	172
Revenues
ZAP Hangzhou [Member]
Subsidiary or Equity Method Investee [Line Items]
Assets	1,682	1,819
Liabilities	118	259
Revenues	$ 922