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Note 6 - Fair Value Measurements and Fair Value of Financial Instruments (Tables)
6 Months Ended
Jun. 30, 2023
Notes Tables  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
      

June 30, 2023

 
      

Fair Value Measurements at Reporting Date Using

 
  

Total Fair Value

  

Quoted Prices in Active Markets for Identical Assets (Level 1)

  

Significant Other Observable Inputs (Level 2)

  

Significant Unobservable Inputs (Level 3)

 

(dollars in thousands)

                

Recurring fair value measurements: Assets

                

Investment securities:

                

Available-for-sale:

                

Federal agency obligations

 $43,153  $-  $43,153  $- 

Residential mortgage pass-through securities

  409,126   -   409,126   - 

Commercial mortgage pass-through securities

  21,210   -   21,210   - 

Obligations of U.S. states and political subdivision

  133,839   -   126,602   7,237 

Corporate bonds and notes

  3,959   -   3,959   - 

Asset-backed securities

  1,381   -   1,381   - 

Other securities

  151   151   -   - 

Total available-for-sale

  612,819   151   605,431   7,237 
                 

Equity securities

  17,950   9,736   8,214   - 

Derivatives

  57,545   -   57,545   - 

Total assets

 $688,314  $9,887  $671,190  $7,237 
      

December 31, 2022

 
      

Fair Value Measurements at Reporting Date Using

 
  

Total Fair Value

  

Quoted Prices in Active Markets for Identical Assets (Level 1)

  

Significant Other Observable Inputs (Level 2)

  

Significant Unobservable Inputs (Level 3)

 

(dollars in thousands)

                

Recurring fair value measurements: Assets

                

Investment securities:

                

Available-for-sale:

                

Federal agency obligations

 $44,450  $-  $44,450  $- 

Residential mortgage pass- through securities

  417,578   -   417,578   - 

Commercial mortgage pass-through securities

  21,104   -   21,104   - 

Obligations of U.S. states and political subdivision

  142,896   -   135,547   7,349 

Corporate bonds and notes

  6,974   -   6,974   - 

Asset-backed securities

  1,640   -   1,640   - 

Other securities

  242   242   -   - 

Total available-for-sale

 $634,884  $242  $627,293  $7,349 
                 

Equity securities

  15,811   9,733   6,078   - 

Derivatives

  56,797   -   56,797   - 

Total assets

 $707,492  $9,975  $690,168  $7,349 
Fair Value Measurements, Nonrecurring [Table Text Block]
      

Fair Value Measurements at Reporting Date Using

 

Assets measured at fair value on a nonrecurring basis:

 June 30, 2023  Quoted Prices in Active Markets for Identical Assets (Level 1)  Significant Other Observable Inputs (Level 2)  Significant Unobservable Inputs (Level 3) 

Collateral dependent loans:

 

(dollars in thousands)

 

Commercial

 $10,779  $-  $-  $10,779 

Commercial real estate

  10,376   -   -   10,376 

Residential real estate

  1,319   -   -   1,319 
      

Fair Value Measurements at Reporting Date Using

 

Assets measured at fair value on a nonrecurring basis:

 December 31, 2022  Quoted Prices in Active Markets for Identical Assets (Level 1)  Significant Other Observable Inputs (Level 2)  Significant Unobservable Inputs (Level 3) 

Collateral dependent loans:

 

(dollars in thousands)

 

Commercial

 $14,550  $-  $-  $14,550 

Commercial real estate

  17,264   -   -   17,264 

Residential real estate

  1,392   -   -   1,392 
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]
  Municipal Securities 
  

(dollars in thousands)

 

Beginning balance, December 31, 2022

 $7,349 

Principal paydowns

  (147)

Change in unrealized gain

  35 

Ending balance, June 30, 2023

 $7,237 
  Municipal Securities 
  

(dollars in thousands)

 

Beginning balance, December 31, 2021

 $8,565 

Principal paydowns

  (287)

Changes in unrealized loss

  (929)

Ending balance, December 31, 2022

 $7,349 
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block]

June 30, 2023

           
  

Fair Value

 

Valuation Techniques

 

Unobservable Input

 

Rate

 

Securities available-for-sale:

    

(dollars in thousands)

      

Municipal securities

 $7,237 

Discounted cash flows

 

Discount rate

  4.3%

December 31, 2022

           
  

Fair Value

 

Valuation Techniques

 

Unobservable Input

 

Rate

 

Securities available-for-sale:

    

(dollars in thousands)

      

Municipal securities

 $7,349 

Discounted cash flows

 

Discount rate

  4.3%
Fair Value, Assets and Liabilities Measured on Nonrecurring Basis, Valuation Techniques [Table Text Block]

June 30, 2023

           

(dollars in thousands)

 

Fair Value

  

Valuation Techniques

Unobservable Input

 

Range (weighted average)

 

Commercial

 $10,311  

Market approach (100%)

Average transfer price as a price to unpaid principal balance

  65% –92% (67%) 

Commercial

  468  

Appraisals of collateral value

Adjustment for comparable sales

 -10% to +13% (+3%) 

Commercial real estate

  10,376  

Appraisals of collateral value

Adjustment for comparable sales

  -15% to +5% (6%) 

Residential real estate

  1,319  

Appraisals of collateral value

Adjustment for comparable sales

 +21% to +39% (+27%) 

December 31, 2022

           

(dollars in thousands)

 

Fair Value

  

Valuation Techniques

Unobservable Input

 

Range (weighted average)

 

Commercial loans

 $14,028  

Market approach (100%)

Average transfer price as a price to unpaid principal balance

  65% to 96% (67%) 

Commercial loans

  522  

Appraisals of collateral value

Adjustment for comparable sales

 

-10% to +13% (+3%)

 

Commercial real estate loans

  17,264  

Appraisals of collateral value

Adjustment for comparable sales

 

-20% to +0% (-15%)

 

Residential real estate loans

  1,392  

Appraisals of collateral value

Adjustment for comparable sales

 

+21% to +39% (22%)

 
Fair Value, by Balance Sheet Grouping [Table Text Block]
          

Fair Value Measurements

 
  

Carrying Amount

  

Fair Value

  

Quoted Prices in Active Markets for Identical Assets (Level 1)

  

Significant Other Observable Inputs (Level 2)

  

Significant Unobservable Inputs (Level 3)

 
  

(dollars in thousands)

 
                     

June 30, 2023

                    

Financial assets:

                    

Cash and due from banks

 $319,924  $319,924  $319,924  $-  $- 

Securities available-for-sale

  612,819   612,819   151   605,431   7,237 

Restricted investments in bank stocks

  46,688   n/a   n/a   n/a   n/a 

Equity securities

  17,950   17,950   9,736   8,214   - 

Net loans

  8,059,335   7,724,946   -   -   7,724,946 

Derivatives - interest rate contracts

  57,545   57,545   -   57,545   - 

Accrued interest receivable

  46,237   46,236   -   5,201   41,035 
                     

Financial liabilities:

                    

Noninterest-bearing deposits

  1,356,293   1,356,293   1,356,293   -   - 

Interest-bearing deposits

  6,182,004   6,146,249   3,560,856   2,585,393   - 

Borrowings

  827,601   825,002   -   825,002   - 

Subordinated debentures

  79,187   77,576   -   77,576   - 

Accrued interest payable

  8,083   8,083   -   8,083   - 
                     

December 31, 2022

                    

Financial assets:

                    

Cash and due from banks

 $268,315  $268,315  $268,315  $-  $- 

Investment securities available-for-sale

  634,884   634,884   242   627,293   7,349 

Restricted investment in bank stocks

  46,604   n/a   n/a   n/a   n/a 

Equity securities

  15,811   15,811   9,733   6,078   - 

Net loans

  8,009,176   7,723,378   -   -   7,723,378 

Derivatives - interest rate contracts

  56,797   56,797   -   56,797   - 

Accrued interest receivable

  46,062   46,062   -   4,685   41,377 
                     

Financial liabilities:

                    

Noninterest-bearing deposits

  1,501,614   1,501,614   1,501,614   -   - 

Interest-bearing deposits

  5,855,008   5,811,291   3,460,818   2,350,473   - 

Borrowings

  857,622   854,698   .   854,698   - 

Subordinated debentures

  153,255   153,581   -   153,581   - 

Accrued interest payable

  6,925   6,925   -   6,925   -