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Consolidated Balance Sheets (Parenthetical) - $ / shares
Dec. 31, 2020
Dec. 31, 2019
Common Stock, Par or Stated Value Per Share $ 0.01 $ 0.01
Common Stock, Shares Authorized 90,000,000 90,000,000
Common Stock, Shares, Issued 4,961,626 4,876,677
Common Stock, Shares, Outstanding 4,834,401 4,876,677
Unallocated common stock of Employee Stock Ownership Plan 161,486 168,507
Treasury stock 127,225 0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number 84,949 0
Share-based Compensation Award, Tranche One [Member]    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number 0  
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number 84,949  
Share-based Compensation Award, Tranche Two [Member]    
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number   0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number   84,949