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Loan Commitments and Other Off-Balance Sheet Activities (Tables)
12 Months Ended
Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]  
Schedule of Off-balance Sheet Instruments Outstanding
The contractual or notional amounts are as follows:
 
December 31,
 
2018
 
2017
Financial instruments wherein contractual amounts represent credit risk
 
 
 
Commitments to extend credit
$
75,180

 
$
46,615

Standby letters of credit
5,965

 
6,757

Unused lines of credit
152,554

 
129,207

Commitments to sell mortgages