Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Narrative) (Details)

v3.21.2
Stock-Based Compensation (Narrative) (Details) - USD ($)
9 Months Ended
Sep. 30, 2021
Sep. 30, 2020
Mar. 31, 2021
Dec. 31, 2020
May 19, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Unrecognized compensation expense related to stock options $ 0        
Aggregate intrinsic value of options outstanding 0        
Intrinsic value of all options exercised 1,961,000        
Net cash proceeds from exercise of stock options 15,000 $ 0      
Share based compensation expense before income taxes 559,000 320,000      
Share based compensation expense after income taxes $ 442,000 $ 253,000      
2011 Executive Incentive Compensation Plan [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of awards authorized         2,500,000
Shares issued under Plan 1,425,008        
Number of options outstanding 0     1,173,190  
Awards eligible for grant 1,074,992        
Employee Stock Purchase Plan [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Percentage of price of common stock at which employees are able to acquire 85.00%        
Shares available 59,303        
ESOP [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Requisite service period 1 year        
Initial award vesting period 2 years        
Award vesting period 6 years        
ESOP contributions $ 329,968        
Shares of ESOP allocated to accounts of eligible employees     72,203    
ESOP [Member] | Share-based Payment Arrangement, Tranche One [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting percentage 20.00%