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Off-Balance-Sheet Activities (Tables)
12 Months Ended
Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]  
Notional amount of financial instrument
The following table summarizes our credit related financial instruments with off-balance-sheet risk as of December 31:

2019
 
2018
Unfunded commitments under lines of credit
$
202,871

 
$
199,652

Commercial and standby letters of credit
4,575

 
1,723

Commitments to grant loans
20,778

 
13,225

Total
$
228,224

 
$
214,600