Three Months Ended March 31,

(Dollars in thousands)

2021

2020

Components of net periodic benefit cost:

Service cost, included in salaries and employee benefits

$

487

$

386

Other components of net periodic benefit cost:

Interest cost

116

135

Expected return on plan assets

(440)

(374)

Amortization of prior service credit

(17)

(17)

Amortization of net obligation at transition

—

Recognized net actuarial losses

60

42

Other components of net periodic benefit cost, included in other noninterest income

(281)

(214)

Net periodic benefit cost

$

206

$

172