Financial Instruments with Off-Balance Sheet Risk (Tables)

12 Months Ended

Dec. 31, 2017

Commitments and Contingencies Disclosure [Abstract]

Summary of Financial Instruments whose Contract Amount Represents Credit Risk

The following financial instruments whose contract amount represents credit risk were outstanding at December 31:

(Dollars in thousands)	2017		2016
Commitments to extend credit	$	177,354	$	162,763
Letters of credit		849		972