Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Narrative) (Details)

v3.21.1
Stock-Based Compensation (Narrative) (Details) - USD ($)
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
May 19, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of options outstanding 1,113,825   1,173,190  
Aggregate intrinsic value of options outstanding $ 1,215,000      
Intrinsic value of all options exercised 0      
Net cash proceeds from exercise of stock options 0 $ 0    
Share based compensation expense before income taxes 142,000 79,000    
Share based compensation expense after income taxes 112,000 $ 63,000    
Unrecognized compensation expense for awards $ 424,000      
Recognition period for unrecognized compensation expense 2 years 2 months 12 days      
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 499,991      
Number of options outstanding 1,239,452      
Awards eligible for grant 760,557      
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 63,196      
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%