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INVESTMENTS: (Details 3) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2012
Sep. 30, 2013
Sep. 30, 2012
Proceeds from sales $ 300 $ 719 $ 1,053 $ 6,286
Gross realized gains 0 11 0 30
Gross realized losses $ 0 $ 0 $ 0 $ (98)