Earnings per Share (Tables)

9 Months Ended

Sep. 30, 2021

Earnings Per Share [Abstract]

Weighted Average Shares and Share Equivalents Used to Calculate Basic and Diluted Earnings Per Share

The following weighted average shares and share equivalents were used to calculate basic and diluted earnings per share ("EPS") for the three and nine months ended September 30, 2021 and 2020:

	Three Months Ended September 30,		Nine Months Ended September 30,
	2021	2020	2021	2020
Weighted average number of shares outstanding used to calculate basic EPS	3,561	3,706	3,619	3,684
Dilutive securities:
Stock options and restricted share units	281	233	274	212
Weighted average number of shares and share equivalents outstanding used to calculate diluted EPS	3,842	3,939	3,893	3,896

Summary of Antidilutive Securities Excluded from Computation of Earnings Per Share

The following non-qualified stock options ("Options") issued under equity incentive plans were outstanding during the three and nine months ended September 30, 2021 and 2020, but were not included in the computation of diluted earnings per share because the effect would have been anti-dilutive.

	Three Months Ended September 30,		Nine Months Ended September 30,
	2021	2020	2021	2020
Anti-dilutive securities	16	21	22	30