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FINANCIAL INSTRUMENTS (Tables)
12 Months Ended
Dec. 31, 2019
Investments, All Other Investments [Abstract]  
Financial instrument liabilities with off-balance sheet credit risk
December 31, (dollars in thousands)    2019      2018  
Residential  $5,815   $6,751 
Home equity lines of credit   28,160    29,872 
Commercial   14,858    19,051 
Land   1,014    14 
Real estate secured   49,847    55,688 
Commercial and industrial   78,286    77,219 
Municipal   2,499    250 
Consumer   2,148    1,583 
Unadvanced portions of loans   132,780    134,740 
Commitments to originate loans   33,781    18,397 
Letters of credit   4,657    3,865 
Total  $171,218   $157,002