XML 78 R63.htm IDEA: XBRL DOCUMENT v3.6.0.2
Loans - Schedule of Impaired Loans (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Receivables [Abstract]      
Impaired loans without a valuation allowance $ 1,141 $ 1,257  
Impaired loans with a valuation allowance 711 879  
Total impaired loans 1,852 2,136  
Valuation allowance related to impaired loans 135 330  
Total non-accrual loans 1,384 2,041  
Total loans past-due ninety days or more and still accruing 0 0 $ 0
Average investment in impaired loans 1,802 2,509 1,929
Interest income recognized on impaired loans 64 96 87
Interest income recognized on a cash basis on impaired loans $ 27 $ 60 $ 51