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Fair Value Accounting (Details 1) - Fair Value, Measurements, Nonrecurring [Member] - USD ($)
$ in Thousands
Mar. 31, 2017
Dec. 31, 2016
Assets    
Impaired loans $ 9,225 $ 8,513
Other real estate owned 669 639
Total assets measured at fair value on a nonrecurring basis 9,894 9,152
Level 1 [Member]    
Assets    
Impaired loans
Other real estate owned
Total assets measured at fair value on a nonrecurring basis
Level 2 [Member]    
Assets    
Impaired loans 3,855 4,075
Other real estate owned 556 526
Total assets measured at fair value on a nonrecurring basis 4,411 4,601
Level 3 [Member]    
Assets    
Impaired loans 5,370 4,438
Other real estate owned 113 113
Total assets measured at fair value on a nonrecurring basis $ 5,483 $ 4,551