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11. Derivative Financial Instruments and Hedging Transactions (Tables)
12 Months Ended
Dec. 31, 2012
Notes to Financial Statements  
Company’s derivative financial instruments
    Amount of Gain (Loss) Recognized in Accumulated OCI on Derivatives   Location of Gain (Loss) Reclassified from Accumulated OCI into Income   Amount of Gain (Loss) Reclassified from Accumulated OCI into Income  
    Years ended December 31,       Years ended December 31,  
    2012     2011       2012     2011  
Interest rate derivative contracts   $ -     $ (20 ) Interest income   $ -     $ 628