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Investments (Narrative) (Details)
$ / shares in Units, $ in Thousands
 9 Months Ended
Sep. 30, 2019
USD ($)
security
$ / shares
Dec. 31, 2018
USD ($)
security
Investments [Abstract]    
Number of temporarily impaired securities | security 95 171
Unrealized Losses $ 683 $ 1,537
Number of investments | security 95  
Equity securities held | security 1  
Securities pledged as collateral $ 115,500 84,600
Unrealized Gain (Loss) on Securities (683)  
Gross Unrealized Gain (Loss) 854,000  
Other-than-temporary-impairment charges 48,900  
Repurchased FHLB stock $ 30  
Price Per Share, FHLB Stock | $ / shares $ 100  
Restricted stock $ 465 452
Equity securities $ 384 $ 374