Earnings per share ("EPS") (Tables)

9 Months Ended

Sep. 30, 2021

Earnings Per Share [Abstract]

Schedule of Reconciliation of Weighted Average Shares Used in Diluted EPS

The following is a reconciliation of the weighted average shares used in diluted EPS computations.

	Three Months Ended September 30,				Nine Months Ended September 30,
	2021		2020		2021		2020
Weighted average common shares-basic		19,769,823		19,335,718		19,633,782		19,217,057
Effect of dilutive securities
Unexercised stock options and stock purchase plan		—		10,607		—		41,701
Unvested restricted stock awards and units		—		52,242		—		60,544
Weighted average common shares-diluted		19,769,823		19,398,567		19,633,782		19,319,302