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Note 13 - Loan Commitments and Other Off-balance-sheet Activities (Tables)
12 Months Ended
Dec. 31, 2020
Notes Tables  
Schedule of Fair Value, Off-balance Sheet Risks [Table Text Block]
  

December 31,

 
  

2020

  

2019

 

Financial instruments wherein contractual amounts represent credit risk

        

Commitments to extend credit

 $31,131  $19,737 

Standby letters of credit

  6,668   6,119 

Unused lines of credit

  200,240   149,771