Three Months Ended
September 30,

Nine Months Ended
September 30,

2021

2020

2021

2020

Numerator:

Net earnings (basic)

$

9,253

$

10,134

$

30,647

$

17,487

Net earnings (diluted)

$

9,253

$

10,134

$

30,647

$

17,487

Denominator:

Weighted-average shares outstanding (basic)*

12,067,769

12,113,266

12,054,426

12,271,889

Effect of dilutive securities:

Common stock equivalent shares from stock options

143,620

—

155,058

—

Weighted-average shares outstanding (diluted)*

12,211,389

12,113,266

12,209,484

12,271,889

Net earnings per share

Basic

$

0.77

$

0.84

$

2.54

$

1.43

Diluted

$

0.76

$

0.84

$

2.51

$

1.43

* Periods prior to the stock dividend issued during the first quarter of 2021 have been adjusted to give effect to the 10% stock dividend.