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PLEDGED ASSETS (Tables)
12 Months Ended
Dec. 31, 2015
Guarantees [Abstract]  
Securities and loans pledged to secure public and trust deposits, securities sold under agreements to repurchase, FHLBB advances and credit facilities available
  December 31, (in thousands)    2015      2014  
Securities available-for-sale (at fair value)  $67,750   $69,055 
Loans receivable   153,269    157,581 
Total pledged assets  $221,019   $226,636