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Note 7 - Capital Requirements (Tables)
9 Months Ended
Sep. 30, 2021
Notes Tables  
Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations [Table Text Block]
  

Actual

  Minimum Capital Requirement  Minimum To Be Well Capitalized Under Prompt Corrective Action Provisions 
  

Amount

  

Ratio

  

Amount

  

Ratio

  

Amount

  

Ratio

 

September 30, 2021

                        

Total Capital (to Risk-Weighted Assets)

 $128,197   14.42% $71,108   8.00% $88,885   10.00%

Tier 1 Capital (to Risk-Weighted Assets)

 $122,763   13.81% $53,331   6.00% $71,108   8.00%

Common Equity Tier 1 Capital (to Risk-Weighted Assets)

 $122,763   13.81% $39,998   4.50% $57,775   6.50%

Tier 1 Capital (to Average Assets)

 $122,763   9.22% $53,274   4.00% $66,593   5.00%

December 31, 2020

                        

Total Capital (to Risk-Weighted Assets)

 $91,243   15.82% $46,129   8.00% $57,661   10.00%

Tier 1 Capital (to Risk-Weighted Assets)

 $84,032   14.57% $34,597   6.00% $46,129   8.00%

Common Equity Tier 1 Capital (to Risk-Weighted Assets)

 $84,032   14.57% $25,948   4.50% $37,480   6.50%

Tier 1 Capital (to Average Assets)

 $84,032   8.80% $38,187   4.00% $47,733   5.00%