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SECURITIES - Additional Information (Details)
1 Months Ended 3 Months Ended 6 Months Ended
Jul. 31, 2019
USD ($)
Jun. 30, 2019
USD ($)
item
Jun. 30, 2018
USD ($)
Jun. 30, 2019
USD ($)
item
Jun. 30, 2018
USD ($)
Dec. 31, 2018
USD ($)
Dec. 31, 2017
USD ($)
Available-for-sale Securities Pledged as Collateral   $ 154,149,000   $ 154,149,000   $ 149,993,000  
Carrying Value Of Public Funds, Trust Funds, Securities Sold Under Agreements To Repurchase, FHLB Advances, And Other Balances   99,610,000   99,610,000   112,528,000  
Proceeds from Sale of Available-for-sale Securities   0 $ 0 32,374,000 $ 14,038,000    
Impairment losses realized on available-for-sale debt securities   0 $ 0 0 0    
Available-for-sale Securities, Gross Realized Gains       187,000 50,000    
Available-for-sale Securities, Gross Realized Losses       102,000 34,000    
Accumulated Other Comprehensive Income (Loss), Net of Tax   $ 4,118,000   4,118,000   (2,581,000)  
Proceeds from Sale of Held-to-maturity Securities       0 0    
Debt Securities, Held-to-maturity, Sold, Realized Gain (Loss)       $ 0 $ 0    
Available For Sale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Less Than Or Equal To One Year | item   7   7      
Available For Sale Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions Greater Than One Year | item   32   32      
Debt securities available-for-sale   $ 305,578,000   $ 305,578,000   $ 316,054,000  
Sales of Debt Securities Available-For-Sale [Member] | Subsequent Event [Member]              
Debt securities available-for-sale $ 39,000,000            
Gain on debt securities 718,000            
Loss on debt securities 47,000            
Net gain on debt securities 671,000            
Amount reinvested in debt securities $ 6,774,000            
Marketable Equity Securities [Member]              
Accumulated Other Comprehensive Income (Loss), Net of Tax             $ 634,000