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PREMISES AND EQUIPMENT (Tables)
12 Months Ended
Dec. 31, 2017
Property, Plant and Equipment [Abstract]  
Schedule of premises and equipment
Premises and equipment consisted of the following as of December 31, 2017 and 2016:
 
 
December 31,
 
2017
 
2016
 
(Dollars in thousands)
Land
$
8,309

 
$
8,309

Office buildings and improvements
100,314

 
96,898

Furniture, fixtures and equipment
37,132

 
34,191

Gross premises and equipment
145,755

 
139,398

Accumulated depreciation and amortization
(97,407
)
 
(91,140
)
Net premises and equipment
$
48,348

 
$
48,258

Schedule of operating expenses to which depreciation and amortization of premises and equipment were charged
Depreciation and amortization of premises and equipment were charged to the following operating expenses:
 
 
Year Ended December 31,
 
2017
 
2016
 
2015
 
(Dollars in thousands)
Net occupancy
$
3,880

 
$
4,097

 
$
3,997

Equipment
2,561

 
1,952

 
1,873

Total
$
6,441

 
$
6,049

 
$
5,870