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Note 9 - Equity Method Investment (Details) - TEL’s Summarized Financial Information - Balance Sheets (TEL [Member], USD $)
In Thousands, unless otherwise specified
Jun. 30, 2013
Dec. 31, 2012
TEL [Member]
   
Condensed Balance Sheet Statements, Captions [Line Items]    
Current Assets $ 5,978 $ 6,898
Non-current Assets 32,402 21,150
Current Liabilities 1,859 9,988
Non-current Liabilities 29,923 13,670
Total Equity $ 6,598 $ 4,390