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Other assets - Components of Other Assets (Details) - USD ($)
$ in Thousands
Mar. 31, 2018
Dec. 31, 2017
Other real estate owned $ 685 $ 284
Investment in low income housing partnership 7,726 7,842
Mortgage servicing rights 719 728
Bank owned life insurance 34,023 33,836
Net deferred tax asset 4,405 3,906
Other assets 8,855 9,311
Total 66,644 64,469
Collateral Pledged    
Restricted equity securities $ 10,231 $ 8,562