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Note 12 - Pension and Other Postretirement Benefit Plans (Details) - Amounts in Accumulated Other Comprehensive Income to be Recognized as Components of Net Periodic Expense for These Plans in 2013 $ in Thousands | 12 Months Ended
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Dec. 31, 2015 USD ($)
Note 12 - Pension and Other Postretirement Benefit Plans (Details) - Amounts in Accumulated Other Comprehensive Income to be Recognized as Components of Net Periodic Expense for These Plans in 2013 [Line Items] |
Net Actuarial loss (gain) | $ 769
Prior Service cost (credit) | (45)
Total | 724
Retirement Plan [Member] |
Note 12 - Pension and Other Postretirement Benefit Plans (Details) - Amounts in Accumulated Other Comprehensive Income to be Recognized as Components of Net Periodic Expense for These Plans in 2013 [Line Items] |
Net Actuarial loss (gain) | 808
Total | 808
Other Postretirement Benefit Plan [Member] |
Note 12 - Pension and Other Postretirement Benefit Plans (Details) - Amounts in Accumulated Other Comprehensive Income to be Recognized as Components of Net Periodic Expense for These Plans in 2013 [Line Items] |
Net Actuarial loss (gain) | 47
Prior Service cost (credit) | (85)
Total | (38)
Directors' Plan [Member] |
Note 12 - Pension and Other Postretirement Benefit Plans (Details) - Amounts in Accumulated Other Comprehensive Income to be Recognized as Components of Net Periodic Expense for These Plans in 2013 [Line Items] |
Net Actuarial loss (gain) | (86)
Prior Service cost (credit) | 40
Total | $ (46)

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