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Note 4 - Loans (Tables)
9 Months Ended
Sep. 30, 2025
Notes Tables  
Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]
  

September 30,

  

December 31,

 
  

2025

  

2024

 

Real estate:

 

(unaudited)

 

Residential First Mortgage

 $449,596,294  $472,747,542 

Commercial Real Estate

  122,811,801   118,008,866 

Multi-Family Real Estate

  70,364,169   74,152,418 

Construction

  25,231,859   43,183,657 

Commercial and Industrial

  3,703,476   6,163,747 

Consumer

  64,336   80,955 

Total loans

  671,771,935   714,337,185 

Allowance for credit losses

  (2,540,950)  (2,620,949)

Net loans

 $669,230,985  $711,716,236 
Financing Receivable, Allowance for Credit Loss [Table Text Block]
  Residential First Mortgage  

Commercial Real Estate

  

Multi-Family Real Estate

  

Construction

  Commercial and Industrial  

Consumer

  

Total

 

Three months ended September 30, 2025

                            

Allowance for credit losses:

                            

Beginning balance

 $1,660,885  $533,874  $278,916  $92,712  $24,340  $223  $2,590,950 

Provision for (recovery) of credit losses

  (41,284)  22,684   9,125   (33,926)  (6,563)  (36)  (50,000)

Loans charged off

                     

Recoveries

                     

Total ending allowance balance

 $1,619,601  $556,558  $288,041  $58,786  $17,777  $187  $2,540,950 
  Residential First Mortgage  

Commercial Real Estate

  

Multi-Family Real Estate

  

Construction

  Commercial and Industrial  

Consumer

  

Total

 

Three Months Ended September 30, 2024

                            

Allowance for credit losses:

                            

Beginning balance

 $1,836,909  $456,898  $315,495  $105,426  $33,221  $  $2,747,949 

Provision for (recovery) of credit losses

  (10,371)  5,417   (2,274)  6,692   536       

Loans charged off

                     

Recoveries

                     

Total ending allowance balance

 $1,826,538  $462,315  $313,221  $112,118  $33,757  $  $2,747,949 
  Residential First Mortgage  

Commercial Real Estate

  

Multi-Family Real Estate

  

Construction

  Commercial and Industrial  

Consumer

  

Total

 

Nine Months Ended September 30, 2025

                            

Allowance for credit losses:

                            

Beginning balance

 $1,680,949  $508,000  $289,000  $123,000  $20,000  $  $2,620,949 

Provision for (recovery) of credit losses

  (61,348)  48,558   (959)  (64,214)  (2,223)  187   (79,999)

Loans charged off

                     

Recoveries

                     

Total ending allowance balance

 $1,619,601  $556,558  $288,041  $58,786  $17,777  $187  $2,540,950 
  Residential First Mortgage  

Commercial Real Estate

  

Multi-Family Real Estate

  

Construction

  Commercial and Industrial  

Consumer

  

Total

 

Nine Months Ended September 30, 2024

                            

Allowance for credit losses:

                            

Beginning balance

 $1,851,969  $437,180  $317,300  $157,500  $22,000  $  $2,785,949 

Provision for (recovery) of credit losses

  (25,431)  25,135   (4,079)  (45,382)  11,757      (38,000)

Loans charged off

                     

Recoveries

                     

Total ending allowance balance

 $1,826,538  $462,315  $313,221  $112,118  $33,757  $  $2,747,949 
Financing Receivable, Nonaccrual [Table Text Block]
  

Nonaccrual loans beginning of period

  

Nonaccrual loans end of period

  

Nonaccrual with no Allowance for Credit Loss

  

Loans Past Due 90 Days or More Still Accruing

 

September 30, 2025

                

Residential First Mortgage

 $1,863,957  $2,502,938  $2,502,938  $ 

Commercial Real Estate

  1,205,025   7,060,968   7,060,968    

Construction

  10,893,713   10,893,713   10,893,713    

Consumer

            

Total

 $13,962,695  $20,457,619  $20,457,619  $ 
  

Nonaccrual loans beginning of period

  

Nonaccrual loans end of period

  

Nonaccrual with no Allowance for Credit Loss

  

Loans Past Due 90 Days or More Still Accruing

 

December 31, 2024

                

Residential First Mortgage

 $1,432,072  $1,863,957  $1,863,957  $ 

Commercial Real Estate

  450,392   1,205,025   1,205,025  $ 

Construction

  10,893,713   10,893,713   10,893,713    

Consumer

            

Total

 $12,776,177  $13,962,695  $13,962,695  $ 
Schedule of Financing Receivable by Collateral [Table Text Block]

September 30, 2025

        

Portfolio segment

 

Real estate

  

Other

 

Residential First Mortgage

 $2,502,938  $ 

Commercial Real Estate

  7,060,968    

Multi-Family Real Estate

      

Construction

  10,893,713    

Commercial and Industrial

      

Other Consumer

      
  $20,457,619  $ 

December 31, 2024

        

Portfolio segment

 

Real estate

  

Other

 

Residential First Mortgage

 $1,863,957  $ 

Commercial Real Estate

  1,205,025    

Multi-Family Real Estate

      

Construction

  10,893,713    

Commercial and Industrial

      

Other Consumer

      
  $13,962,695  $ 
Financing Receivable, Past Due [Table Text Block]
          

Greater than

             
  

30-59 Days

  

60-89 Days

  

89 Days

  

Total

  

Loans Not

     
  

Past Due

  

Past Due

  

Past Due

  

Past Due

  

Past Due

  

Total

 

September 30, 2025

                        

Residential First Mortgage

 $69,992  $88,237  $1,801,822  $1,960,051  $447,636,243  $449,596,294 

Commercial Real Estate

     1,859,931   7,060,968   8,920,899   113,890,902   122,811,801 

Multi-Family Real Estate

              70,364,169   70,364,169 

Construction

        10,893,713   10,893,713   14,338,146   25,231,859 

Commercial and Industrial

  19,340         19,340   3,684,136   3,703,476 

Consumer

              64,336   64,336 

Total

 $89,332  $1,948,168  $19,756,503  $21,794,003  $649,977,932  $671,771,935 
          

Greater than

             
  

30-59 Days

  

60-89 Days

  

89 Days

  

Total

  

Loans Not

     
  

Past Due

  

Past Due

  

Past Due

  

Past Due

  

Past Due

  

Total

 

December 31, 2024

                        

Residential First Mortgage

 $119,309  $1,607,835  $513,297  $2,240,441  $470,507,101  $472,747,542 

Commercial Real Estate

        1,205,025   1,205,025   116,803,841   118,008,866 

Multi-Family Real Estate

              74,152,418   74,152,418 

Construction

        10,893,713   10,893,713   32,289,944   43,183,657 

Commercial and Industrial

              6,163,747   6,163,747 

Consumer

  -         -   80,955   80,955 

Total

 $119,309  $1,607,835  $12,612,035  $14,339,179  $699,998,006  $714,337,185 
Financing Receivable Credit Quality Indicators [Table Text Block]
  

Term Loans by Origination Year

 

September 30, 2025

 

2025

  

2024

  

2023

  

2022

  

2021

  

Prior

  

Revolving Loans

  

Totals

 

Residential First Mortgage

                                

Pass

 $6,522,488  $26,799,710  $19,609,339  $99,318,676  $29,797,378  $127,658,092  $138,007,695  $447,713,378 

Special Mention

                 808,122   596,186   1,404,308 

Substandard

                 142,661   335,947   478,608 

Doubtful

                        

Total

  6,522,488   26,799,710   19,609,339   99,318,676   29,797,378   128,608,875   138,939,828   449,596,294 

Gross charge-offs by vintage

                        
                                 

Commercial Real Estate

                                

Pass

  8,598,378   15,977,066   15,379,349   5,259,733   1,719,653   75,503,736   373,886   122,811,801 

Special Mention

                        

Substandard

                        

Doubtful

                        

Total

  8,598,378   15,977,066   15,379,349   5,259,733   1,719,653   75,503,736   373,886   122,811,801 

Gross charge-offs by vintage

                        
                                 

Multi-Family Real Estate

                                

Pass

  1,735,716         5,085,066      5,890,652   57,652,735   70,364,169 

Special Mention

                        

Substandard

                        

Doubtful

                        

Total

  1,735,716         5,085,066      5,890,652   57,652,735   70,364,169 

Gross charge-offs by vintage

                        
                                 

Construction

                                

Pass

                    14,338,146   14,338,146 

Special Mention

                        

Substandard

                    10,893,713   10,893,713 

Doubtful

                        

Total

                    25,231,859   25,231,859 

Gross charge-offs by vintage

                        
                                 

Commercial and Industrial

                                

Pass

  23,978   1,966,064   161,069         166,104   1,386,261   3,703,476 

Special Mention

                        

Substandard

                        

Doubtful

                        

Total

  23,978   1,966,064   161,069         166,104   1,386,261   3,703,476 

Gross charge-offs by vintage

                        
                                 

Consumer

                                

Pass

                    64,336   64,336 

Special Mention

                        

Substandard

                        

Doubtful

                        

Total

                    64,336   64,336 

Gross charge-offs by vintage

                        
                                 

Total loans

 $16,880,560  $44,742,840  $35,149,757  $109,663,475  $31,517,031  $210,169,367  $223,648,905  $671,771,935 
  

Term Loans by Origination Year

 

December 31, 2024

 

2024

  

2023

  

2022

  

2021

  

2020

  

Prior

  

Revolving Loans

  

Totals

 

Residential First Mortgage

                                

Pass

 $26,742,846  $20,620,971  $102,163,479  $31,658,834  $25,961,474  $118,351,367  $145,384,614  $470,883,585 

Special Mention

              186,177   593,420   598,461   1,378,058 

Substandard

                 146,730   339,169   485,899 

Doubtful

                        

Total

  26,742,846   20,620,971   102,163,479   31,658,834   26,147,651   119,091,517   146,322,244   472,747,542 

Gross charge-offs by vintage

                        
                                 

Commercial Real Estate

                                

Pass

  14,935,535   11,625,202   5,363,747   2,030,427   42,533,113   38,696,841   1,618,976   116,803,841 

Special Mention

                 754,633      754,633 

Substandard

                 450,392      450,392 

Doubtful

                        

Total

  14,935,535   11,625,202   5,363,747   2,030,427   42,533,113   39,901,866   1,618,976   118,008,866 

Gross charge-offs by vintage

                        
                                 

Multi-Family Real Estate

                                

Pass

        2,262,457         1,909,140   69,980,821   74,152,418 

Special Mention

                        

Substandard

                        

Doubtful

                        

Total

        2,262,457         1,909,140   69,980,821   74,152,418 

Gross charge-offs by vintage

                        
                                 

Construction

                                

Pass

                    32,289,944   32,289,944 

Special Mention

                        

Substandard

                    10,893,713   10,893,713 

Doubtful

                        

Total

                    43,183,657   43,183,657 

Gross charge-offs by vintage

                        
                                 

Commercial and Industrial

                                

Pass

  2,380,140   196,286         311,422      3,275,899   6,163,747 

Special Mention

                        

Substandard

                        

Doubtful

                        

Total

  2,380,140   196,286         311,422      3,275,899   6,163,747 

Gross charge-offs by vintage

                        
                                 

Consumer

                                

Pass

                    80,955   80,955 

Special Mention

                        

Substandard

                        

Doubtful

                        

Total

                    80,955   80,955 

Gross charge-offs by vintage

                        

Total loans

 $44,058,521  $32,442,459  $109,789,683  $33,689,261  $68,992,186  $160,902,523  $264,462,552  $714,337,185