Quarterly report pursuant to Section 13 or 15(d)

Investments (Details 2)

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Investments (Details 2) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Dec. 31, 2012
Trading securities portfolio      
Trading securities portfolio $ 1,235   $ 1,276
Gains 45 86  
U.S. government security funds
     
Trading securities portfolio      
Net Unrealized Losses $ 8   $ 9