Financial Instruments with Off-Balance-Sheet Risk (Tables)

12 Months Ended

Dec. 31, 2016

Risks and Uncertainties [Abstract]

Summary of Financial Instruments with Off-Balance-Sheet Risk

Financial instruments with off-balance-sheet risk at December 31 are as follows:

Contract or Notional Amount

	2016		2015
(dollars in thousands)
Financial instruments whose contract amount represents credit risk:
Commitments to originate 1–4 family mortgages	$	13,877	$	5,638
Standby and commercial letters of credit		6,796		4,936
Unused lines of credit		362,357		320,874
Unadvanced portions of construction loans		22,049		11,589
Unadvanced portions of other loans		52,224		41,717