Comprehensive Income (Tables)
 12 Months Ended
Dec. 31, 2016
Disclosure Text Block [Abstract]  
Comprehensive Income (Loss) [Table Text Block]

The Company’s other comprehensive income (loss) is comprised of unrealized holding gains and losses on securities available-for-sale, obligations for defined benefit pension plan and an adjustment to reflect the curtailment of the Company’s defined benefit pension plan, net of taxes.

 

        Affected Line Item in the
Details about Accumulated Other   Amounts Reclassified from Accumulated   Consolidated Statements
Comprehensive Income Components   Other Comprehensive Income   of Income
    Twelve Months Ended    
    December 31,    
(dollars in thousands)   2016   2015   2014    
Sale of investment securities available-for-sale     4,234     3,931     2,818   Net gains on sale investment securities
      (1,682)     (1,564)     (986)   Income tax expense
      2,552     2,367     1,832  
Amortization of unrealized holding (losses) gains on securities transferred from available-for-sale to held-to-maturity     (1,986)     (220)     (215)   Interest income
      813     90     91   Income tax benefit
      (1,173)     (130)     (124)  
Amortization of pension plan net actuarial losses     (407)     (433)     (204)   Salaries and employee benefits
      165     177     83   Income tax benefit
      (242)     (256)     (121)  
Total reclassification   $ 1,137   $ 1,981   $ 1,587  
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]

Accumulated other comprehensive loss at December 31, 2016 and 2015 consisted of the following:

 

    2016   2015  
    (dollars in thousands)  
Investment securities available-for-sale, net of tax   $ 933   $ 713  
Cash flow hedge, net of tax     52     (77)  
Unamortized component of securities transferred from
available-for-sale to held-to-maturity, net of tax		     -     (1,173)  
Defined benefit pension and post-retirement plans, net of tax     (3,831)     (4,072)  
Total   $ (2,846)   $ (4,609)