Basis of Presentation (Tables)

9 Months Ended

Sep. 30, 2021

Organization Consolidation And Presentation Of Financial Statements [Abstract]

Dilutive and Antidilutive Options

The dilutive and antidilutive options are shown separately in the table below.

	Three Months Ended				Nine Months Ended
	September 30				September 30
	2021		2020		2021		2020
Additional shares		519,900		758,500		678,000		545,300
Antidilutive options		580,400		646,500		583,600		679,000