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Note 6 - Goodwill and Acquired Intangible Assets (Tables)
12 Months Ended
Dec. 31, 2021
Notes Tables  
Schedule of Goodwill [Table Text Block]

(Dollars in thousands)

 

2021

   

2020

 

Balance, beginning of year

  $ 60,506     $ 52,870  

Goodwill adjustment from merger with County Bank Corp.

    -       (277 )

Acquired goodwill from merger with Community Shores Bank Corporation

    -       7,913  

Goodwill adjustment from merger with Community Shores Bank Corporation

    (560 )     -  

Balance, end of year

  $ 59,946     $ 60,506  
Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block]
   

2021

   

2020

 
   

Gross

           

Gross

         
   

Carrying

   

Accumulated

   

Carrying

   

Accumulated

 

(Dollars in thousands)

 

Amount

   

Amortization

   

Amount

   

Amortization

 

Core deposit intangible

  $ 7,120     $ 3,158     $ 7,120     $ 1,851  
Finite-lived Intangible Assets Amortization Expense [Table Text Block]

2022

  $ 1,153  

2023

    955  

2024

    757  

2025

    560  

2026

    362  

Thereafter

    175  

Total

  $ 3,962