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Off-balance sheet financial instruments (Tables)
12 Months Ended
Dec. 31, 2020
Off-balance sheet financial instruments.  
Summary of contractual amounts of off-balance sheet commitments

December 31

    

2020

    

2019

 

Commitments to extend credit

$

336,667

$

290,517

Unused portions of lines of credit

 

55,391

 

52,168

Standby letters of credit

 

34,428

 

45,018

$

426,486

$

387,703