Financial Instruments with Off-Balance Sheet Risk (Tables)

12 Months Ended

Dec. 31, 2016

Financial Instruments with Off-Balance Sheet Risk [Abstract]

Loan Commitments and Standby Letters of Credit [Table Text Block]

The total amounts of loan commitments and standby letters of credit at December 31 are summarized as follows:

(Dollars in thousands)	2016		2015
Home equity lines of credit	$	85,024	$	84,148
Unadvanced construction loans	119,075		77,479
Other loan commitments	269,669		233,689
Loan commitments	473,768		395,316
Standby letters of credit	$	25,651	$	22,970