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Note G - Accumulated Other Comprehensive Income (Details) - Reclassifications out of AOCI (USD $)
In Thousands, unless otherwise specified
 3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2013
Unrealized gains and losses on available-for-sale securities:    
Realized gain on sale of securities    [1] $ 6 [1]
Impairment expense (2) [1] (29) [1]
Total before tax (2) [1] (23) [1]
Tax benefit 1 [1] 9 [1]
Total after tax $ (1) [1] $ (14) [1]
[1] Amounts in parentheses indicate debits to profit/loss