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Securities Portfolio (Tables)
 12 Months Ended
Dec. 31, 2022
Securities Portfolio [Abstract]  
Amortized Cost and Fair Value, with Gross Unrealized Gains and Losses of Securities Available-for-Sale
The amortized cost and fair value, with gross unrealized gains and losses, of securities available-for-sale were:

   
December 31, 2022
  
         
Gross
    
Gross
        
   
Amortized
    
Unrealized
    
Unrealized
    
Fair
  
(Dollars in thousands)
  
Cost
    
Gains
    
(Losses)
    
Value
  
U.S. Treasury securities
  
$
8,013
    
$
-
    
$
(342
)
  
$
7,671
  
Obligations of U.S. Government agencies
    
43,622
      
10
      
(1,233
)
    
42,399
  
Obligations of state and political subdivisions
    
70,491
      
-
      
(11,107
)
    
59,384
  
Mortgage-backed securities
    
99,874
      
-
      
(10,961
)
    
88,913
  
Money market investments
    
1,816
      
-
      
-
      
1,816
  
Corporate bonds and other securities
    
27,990
      
-
      
(2,655
)
    
25,335
  
   
$
251,806
    
$
10
    
$
(26,298
)
  
$
225,518
  

   
December 31, 2021
  
         
Gross
    
Gross
        
   
Amortized
    
Unrealized
    
Unrealized
    
Fair
  
(Dollars in thousands)
  
Cost
    
Gains
    
(Losses)
    
Value
  
U.S. Treasury securities
  
$
15,052
    
$
-
    
$
(148
)
  
$
14,904
  
Obligations of U.S. Government agencies
    
38,651
      
75
      
(168
)
    
38,558
  
Obligations of state and political subdivisions
    
64,132
      
1,948
      
(277
)
    
65,803
  
Mortgage-backed securities
    
88,511
      
1,348
      
(801
)
    
89,058
  
Money market investments
    
2,413
      
-
      
-
      
2,413
  
Corporate bonds and other securities
    
23,441
      
261
      
(117
)
    
23,585
  
   
$
232,200
    
$
3,632
    
$
(1,511
)
  
$
234,321
  
Amortized Cost and Fair Value of Securities by Contractual Maturity
The amortized cost and fair value of securities by contractual maturity are shown below.

   
December 31, 2022
  
   
Amortized
    
Fair
  
(Dollars in thousands)
  
Cost
    
Value
  
Due in one year or less
  
$
890
    
$
872
  
Due after one year through five years
    
19,927
      
18,976
  
Due after five through ten years
    
64,098
      
56,164
  
Due after ten years
    
165,075
      
147,690
  
Other securities, restricted
    
1,816
      
1,816
  
   
$
251,806
    
$
225,518
  
Net Realized Losses on Sale of Investments
The following table provides information about securities sold in the years ended December 31:

    Years Ended
 
   
December 31,
  
(Dollars in thousands)
  
2022
    
2021
  
Securities Available-for-sale
            
Realized losses on sales of securities
  
$
(1,870
)
  
$
-
  
Net realized loss
  
$
(1,870
)
  
$
-
  
Available-for-Sale Securities, Unrealized Loss Position
Securities in an unrealized loss position at December 31,2022, by duration of the period of unrealized loss, are shown below.

   
December 31, 2022
  
   
Less than 12 months
    
12 months or more
    
Total
  
   
Gross
          
Gross
          
Gross
        
   
Unrealized
    
Fair
    
Unrealized
    
Fair
    
Unrealized
    
Fair
  
(Dollars in thousands)
  
Losses
    
Value
    
Losses
    
Value
    
Losses
    
Value
  
U.S. Treasury securities
   $
 342     $
7,671     $
-     $
-     $
342     $
7,671  
Obligations of U.S. Government agencies
  

258
    

13,873
    

975
    

22,851
    

1,233
    

36,724
  
Obligations of state and political subdivisions
     5,386       33,720       5,721       23,856       11,107       57,576  
Mortgage-backed securities
    
4,157
      
52,717
      
6,804
      
36,196
      
10,961
      
88,913
  
Corporate bonds and other securities
    
1,084
      
12,906
      
1,571
      
11,429
      
2,655
      
24,335
  
Total securities available-for-sale
  
$
11,227
    
$
120,887
    
$
15,071
    
$
94,332
    
$
26,298
    
$
215,219
  

Securities in an unrealized loss position at December 31,2021, by duration of the period of unrealized loss, are shown below.

   
December 31, 2021
  
   
Less than 12 months
    
12 months or more
    
Total
  
   
Gross
          
Gross
          
Gross
        
   
Unrealized
    
Fair
    
Unrealized
    
Fair
    
Unrealized
    
Fair
  
(Dollars in thousands)
  
Losses
    
Value
    
Losses
    
Value
    
Losses
    
Value
  
U.S. Treasury securities   $ 148     $ 14,904     $ -     $ -     $ 148     $ 14,904  
Obligations of U.S. Government agencies     131       19,181       37       5,042       168       24,223  
Obligations of state and political subdivisions
    
277
      
20,673
      
-
      
-
      
277
      
20,673
  
Mortgage-backed securities
    
608
      
35,882
      
193
      
6,450
      
801
      
42,332
  
Corporate bonds and other securities
    
117
      
9,833
      
-
      
-
      
117
      
9,833
  
Total securities available-for-sale
  
$
1,281
    
$
100,473
    
$
230
    
$
11,492
    
$
1,511
    
$
111,965