XML 30 R20.htm IDEA: XBRL DOCUMENT v3.10.0.1
2. Investment securities, Continuous Unrealized Loss Position (Details) - USD ($)
$ in Thousands
 6 Months Ended 12 Months Ended
Jun. 30, 2018
Dec. 31, 2017
Investment securities with continuous unrealized loss position    
Less than 12 Months, Fair Value $ 55,087 $ 22,160
Less than 12 Months, Unrealized Losses 1,035 175
12 Months or More, Fair Value 22,228 22,827
12 Months or More, Unrealized Losses 923 434
Total, Fair Value 77,315 44,987
Total, Unrealized Losses 1,958 609
Mortgage-backed securities    
Investment securities with continuous unrealized loss position    
Less than 12 Months, Fair Value 18,692 8,701
Less than 12 Months, Unrealized Losses 255 75
12 Months or More, Fair Value 11,373 11,259
12 Months or More, Unrealized Losses 558 254
Total, Fair Value 30,065 19,960
Total, Unrealized Losses 813 329
U.S. Government sponsored enterprises    
Investment securities with continuous unrealized loss position    
Less than 12 Months, Fair Value 26,635 12,661
Less than 12 Months, Unrealized Losses 663 98
12 Months or More, Fair Value 9,891 10,067
12 Months or More, Unrealized Losses 338 166
Total, Fair Value 36,526 22,728
Total, Unrealized Losses 1,001 264
State and political subdivisions    
Investment securities with continuous unrealized loss position    
Less than 12 Months, Fair Value 9,760 798
Less than 12 Months, Unrealized Losses 117 2
12 Months or More, Fair Value 964 1,501
12 Months or More, Unrealized Losses 27 14
Total, Fair Value 10,724 2,299
Total, Unrealized Losses $ 144 $ 16