XML 52 R39.htm IDEA: XBRL DOCUMENT v3.10.0.1
SECURITIES AVAILABLE FOR SALE - Narrative (Details)
6 Months Ended
Jun. 30, 2018
USD ($)
security
shares
Bar Harbor Bank & Trust | Visa Class B  
Investment Holdings [Line Items]  
Carrying value of investment | $ $ 0
Number of Visa Class shares owned (in shares) | shares 11,623
Bar Harbor Bank & Trust | Visa Class A  
Investment Holdings [Line Items]  
Number of Visa Class shares owned (in shares) | shares 18,943
Conversion ratio, Visa Class 1.6298
Obligations of US Government-sponsored enterprises  
Investment Holdings [Line Items]  
Available for sale securities portfolio, number of securities (security) 1
Available for sale and held to maturity securities, continuous unrealized loss position, aggregate losses percentage 0.10%
US Government-sponsored enterprises  
Investment Holdings [Line Items]  
Available for sale securities portfolio, number of securities (security) 777
Available-for-sale, securities in unrealized loss positions (security) 495
Available for sale and held to maturity securities, continuous unrealized loss position, aggregate losses percentage 3.20%
US Government agency  
Investment Holdings [Line Items]  
Available for sale securities portfolio, number of securities (security) 200
Available-for-sale, securities in unrealized loss positions (security) 120
Available for sale and held to maturity securities, continuous unrealized loss position, aggregate losses percentage 3.20%
Private label  
Investment Holdings [Line Items]  
Available for sale securities portfolio, number of securities (security) 26
Available-for-sale, securities in unrealized loss positions (security) 10
Available for sale and held to maturity securities, continuous unrealized loss position, aggregate losses percentage 3.30%
Obligations of states and political subdivisions thereof  
Investment Holdings [Line Items]  
Available for sale securities portfolio, number of securities (security) 262
Available-for-sale, securities in unrealized loss positions (security) 119
Available for sale and held to maturity securities, continuous unrealized loss position, aggregate losses percentage 3.30%
Corporate bonds  
Investment Holdings [Line Items]  
Available for sale securities portfolio, number of securities (security) 17
Available-for-sale, securities in unrealized loss positions (security) 9
Available for sale and held to maturity securities, continuous unrealized loss position, aggregate losses percentage 1.80%