XML 30 R20.htm IDEA: XBRL DOCUMENT v3.8.0.1
2. Investment securities, Continuous Unrealized Loss Position (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2018
Dec. 31, 2017
Investment securities with continuous unrealized loss position    
Less than 12 Months, Fair Value $ 47,799 $ 22,160
Less than 12 Months, Unrealized Losses 790 175
12 Months or More, Fair Value 21,323 22,827
12 Months or More, Unrealized Losses 734 434
Total, Fair Value 69,122 44,987
Total, Unrealized Losses 1,524 609
Mortgage-backed securities    
Investment securities with continuous unrealized loss position    
Less than 12 Months, Fair Value 13,062 8,701
Less than 12 Months, Unrealized Losses 219 75
12 Months or More, Fair Value 10,693 11,259
12 Months or More, Unrealized Losses 503 254
Total, Fair Value 23,755 19,960
Total, Unrealized Losses 722 329
U.S. Government sponsored enterprises    
Investment securities with continuous unrealized loss position    
Less than 12 Months, Fair Value 26,715 12,661
Less than 12 Months, Unrealized Losses 448 98
12 Months or More, Fair Value 9,665 10,067
12 Months or More, Unrealized Losses 201 166
Total, Fair Value 36,380 22,728
Total, Unrealized Losses 649 264
State and political subdivisions    
Investment securities with continuous unrealized loss position    
Less than 12 Months, Fair Value 7,023 798
Less than 12 Months, Unrealized Losses 122 2
12 Months or More, Fair Value 965 1,501
12 Months or More, Unrealized Losses 30 14
Total, Fair Value 7,988 2,299
Total, Unrealized Losses 152 $ 16
Corporate bonds    
Investment securities with continuous unrealized loss position    
Less than 12 Months, Fair Value 999  
Less than 12 Months, Unrealized Losses 1  
12 Months or More, Fair Value 0  
12 Months or More, Unrealized Losses 0  
Total, Fair Value 999  
Total, Unrealized Losses $ 1