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Other Real Estate Owned (Tables)
 12 Months Ended
Dec. 31, 2020
Other Real Estate [Abstract]  
Summary of the activity in the other real estate owned
The following table summarizes the activity in other real estate owned for the years ended December 31: 
 202020192018
 (Dollars in thousands)
Balance, beginning of year$441 $147 $326 
Additions:
Acquisitions— — 524 
Foreclosures208 644 15 
Sales(537)(329)(1,055)
Gain (loss) on sale(57)(20)346 
Write downs(55)(1)(9)
Balance, end of year$— $441 $147