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Employee Benefit Plans (Tables)
6 Months Ended
Jun. 30, 2015
Employee Benefit Plans Disclosure [Abstract]  
Schedule of Changes in Projected Benefit Obligations [Table Text Block]
Three Months EndedSix Months Ended
June 30,June 30,
2015201420152014
(in thousands)
Components of net periodic benefit cost:
Service cost$-$(8)$-$-
Interest cost190227367448
Expected return on plan assets(179)(167)(345)(330)
Net amortization loss814615691
Net periodic benefit cost$92$98$178$209