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Stock-Based Compensation (Tables)
 9 Months Ended
Sep. 30, 2020
Share-based Payment Arrangement [Abstract]  
Schedule of the combined activity under all of the stock option plans
   Number of
Options
Outstanding		   Weighted
Average
Exercise
Price		 
Outstanding at January 1, 2020   52,500   $27.51 
Cancelled   (42,000)   22.52 
Outstanding at September 30, 2020   10,500   $29.61