Line Of Credit, Short Term Debt And Bank Acceptance Notes (Schedule Of Short-Term Debt) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Short-term Debt [Line Items]
Short term debt	$ 3,676	$ 5,485
China Merchant Bank [Member]
Short-term Debt [Line Items]
Short term debt	1,044	3,174
Taizhou Bank [Member]
Short-term Debt [Line Items]
Short term debt	633	1,428
Zhejiang Tailong Commercial Bank [Member]
Short-term Debt [Line Items]
Short term debt	316	794
CITIC Bank [Member]
Short-term Debt [Line Items]
Short term debt	1,583
Insurance Premiums [Member]
Short-term Debt [Line Items]
Short term debt	$ 100	$ 89