Quarterly report pursuant to Section 13 or 15(d)

Stock-Based Compensation (Narrative) (Details)

v3.19.3
Stock-Based Compensation (Narrative) (Details) - USD ($)
3 Months Ended 9 Months Ended 96 Months Ended
Mar. 31, 2019
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2018
May 19, 2011
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of options outstanding   1,311,634   1,380,492  
Aggregate intrinsic value of options outstanding   $ 539,000      
Intrinsic value of all options exercised   33,000      
Net cash proceeds from exercise of stock options   0 $ 0    
Share based compensation expense before income taxes   276,236 156,214    
Share based compensation expense after income taxes   218,000 $ 123,000    
Unrecognized compensation expense for awards   $ 427,000      
Recognition period for unrecognized compensation expense   2 years 3 months 18 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   235,630      
Number of options outstanding   1,651,801      
Awards eligible for grant   612,569      
2011 Executive Incentive Compensation Plan [Member] | Share-based Payment Arrangement, Tranche One [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Award vesting percentage   25.00%      
Stock Option Plan For Directors [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of options granted   0   0  
Award expiration period   10 years      
Number of options outstanding   18,000      
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   93,905      
Key Employees [Member] | 2011 Executive Incentive Compensation Plan [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Deferred stock awards granted 157,907        
Award vesting period 3 years        
Key Executive Employees [Member] | 2011 Executive Incentive Compensation Plan [Member]          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Number of options granted   100,769      
Award expiration period   7 years