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Retirement Plans (Tables)
 6 Months Ended
Jun. 30, 2020
Retirement Benefits [Abstract]  
Components of net periodic pension cost
The pension and retirement expense for the SERP was as follows:
 
Six Months Ended June 30,
($ in thousands)
2020
 
2019
Cost components:
 
 
 
Interest cost
$
(114
)
 
$
(152
)
Net amortization and other
(44
)
 
(32
)
Total net periodic pension expense
$
(158
)
 
$
(184
)

Total pension and retirement earnings for the Benefit Plan was as follows:
 
Six Months Ended June 30,
($ in thousands)
2020
 
2019
Earnings (cost) components:
 
 
 
Interest cost
$
(170
)
 
$
(194
)
Expected return on plan assets
322

 
262

Net amortization and deferral
(34
)
 
(38
)
Total net periodic pension earnings
$
118

 
$
30