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Loans, Nonaccrual Loans Segregated by Class of Loans and Loan Portfolio Aging Analysis, Segregated by Class (Details) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2018 | Dec. 31, 2017
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Nonaccrual loans segregated by class of loans |  | $ 13,032 | $ 18,119
Total Past Due |  | 47,705 | 45,403
Current |  | 3,130,183 | 3,077,537
Total Loans |  | 3,177,888 | 3,122,940
90+ and Accruing | [1] | 8,005 | 10,176
Minimum threshold amount of loans requiring performance bond |  | 500 |
30-59 Days Past Due [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Total Past Due |  | 14,147 | 13,401
60-89 Days Past Due [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Total Past Due |  | 15,449 | 8,632
90+ Days Past Due [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Total Past Due |  | $ 18,109 | 23,370
Equipment Lease Financing [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Financing percentage requested for underwriting loans |  | 100.00% |
Commercial [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Total Loans |  | $ 1,613,735 | 1,619,235
Commercial [Member] | Construction [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Nonaccrual loans segregated by class of loans |  | 619 | 1,207
Total Past Due |  | 794 | 1,376
Current |  | 80,678 | 75,103
Total Loans |  | 81,472 | 76,479
90+ and Accruing | [1] | 47 | 31
Commercial [Member] | Construction [Member] | 30-59 Days Past Due [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Total Past Due |  | 127 | 138
Commercial [Member] | Construction [Member] | 60-89 Days Past Due [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Total Past Due |  | 116 | 0
Commercial [Member] | Construction [Member] | 90+ Days Past Due [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Total Past Due |  | 551 | 1,238
Commercial [Member] | Real Estate [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Nonaccrual loans segregated by class of loans |  | 5,061 | 7,028
Total Past Due |  | 20,809 | 14,160
Current |  | 1,162,823 | 1,174,520
Total Loans |  | 1,183,632 | 1,188,680
90+ and Accruing | [1] | 2,453 | 2,665
Commercial [Member] | Real Estate [Member] | 30-59 Days Past Due [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Total Past Due |  | 5,962 | 4,047
Commercial [Member] | Real Estate [Member] | 60-89 Days Past Due [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Total Past Due |  | 8,174 | 1,599
Commercial [Member] | Real Estate [Member] | 90+ Days Past Due [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Total Past Due |  | 6,673 | 8,514
Commercial [Member] | Equipment Lease Financing [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Total Past Due |  | 0 | 430
Current |  | 1,986 | 2,612
Total Loans |  | 1,986 | 3,042
90+ and Accruing | [1] | 0 | 0
Commercial [Member] | Equipment Lease Financing [Member] | 30-59 Days Past Due [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Total Past Due |  | 0 | 430
Commercial [Member] | Equipment Lease Financing [Member] | 60-89 Days Past Due [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Total Past Due |  | 0 | 0
Commercial [Member] | Equipment Lease Financing [Member] | 90+ Days Past Due [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Total Past Due |  | 0 | 0
Commercial [Member] | Other [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Nonaccrual loans segregated by class of loans |  | 443 | 934
Total Past Due |  | 1,630 | 1,564
Current |  | 345,015 | 349,470
Total Loans |  | 346,645 | 351,034
90+ and Accruing | [1] | 90 | 87
Commercial [Member] | Other [Member] | 30-59 Days Past Due [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Total Past Due |  | 549 | 835
Commercial [Member] | Other [Member] | 60-89 Days Past Due [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Total Past Due |  | 794 | 77
Commercial [Member] | Other [Member] | 90+ Days Past Due [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Total Past Due |  | 287 | 652
Residential [Member] | Construction [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Nonaccrual loans segregated by class of loans |  | 22 | 318
Total Past Due |  | 671 | 649
Current |  | 61,111 | 66,709
Total Loans |  | 61,782 | 67,358
90+ and Accruing | [1] | 11 | 223
Residential [Member] | Construction [Member] | 30-59 Days Past Due [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Total Past Due |  | 420 | 224
Residential [Member] | Construction [Member] | 60-89 Days Past Due [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Total Past Due |  | 218 | 202
Residential [Member] | Construction [Member] | 90+ Days Past Due [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Total Past Due |  | 33 | 223
Residential [Member] | Real Estate [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Nonaccrual loans segregated by class of loans |  | 6,401 | 8,243
Total Past Due |  | 14,888 | 18,698
Current |  | 707,134 | 690,872
Total Loans |  | 722,022 | 709,570
90+ and Accruing | [1] | 4,413 | 6,293
Residential [Member] | Real Estate [Member] | 30-59 Days Past Due [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Total Past Due |  | 939 | 2,064
Residential [Member] | Real Estate [Member] | 60-89 Days Past Due [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Total Past Due |  | 4,658 | 5,029
Residential [Member] | Real Estate [Member] | 90+ Days Past Due [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Total Past Due |  | 9,291 | 11,605
Residential [Member] | Home Equity [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Nonaccrual loans segregated by class of loans |  | 486 | 389
Total Past Due |  | 1,803 | 1,201
Current |  | 102,002 | 98,155
Total Loans |  | 103,805 | 99,356
90+ and Accruing | [1] | 310 | 167
Residential [Member] | Home Equity [Member] | 30-59 Days Past Due [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Total Past Due |  | 917 | 595
Residential [Member] | Home Equity [Member] | 60-89 Days Past Due [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Total Past Due |  | 293 | 178
Residential [Member] | Home Equity [Member] | 90+ Days Past Due [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Total Past Due |  | 593 | 428
Consumer [Member] | Consumer Direct [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Total Past Due |  | 1,219 | 1,193
Current |  | 144,783 | 136,561
Total Loans |  | 146,002 | 137,754
90+ and Accruing | [1] | 36 | 62
Consumer [Member] | Consumer Direct [Member] | 30-59 Days Past Due [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Total Past Due |  | 828 | 983
Consumer [Member] | Consumer Direct [Member] | 60-89 Days Past Due [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Total Past Due |  | 355 | 148
Consumer [Member] | Consumer Direct [Member] | 90+ Days Past Due [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Total Past Due |  | 36 | 62
Consumer [Member] | Consumer Indirect [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Total Past Due |  | 5,891 | 6,132
Current |  | 524,651 | 483,535
Total Loans |  | 530,542 | 489,667
90+ and Accruing | [1] | 645 | 648
Consumer [Member] | Consumer Indirect [Member] | 30-59 Days Past Due [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Total Past Due |  | 4,405 | 4,085
Consumer [Member] | Consumer Indirect [Member] | 60-89 Days Past Due [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Total Past Due |  | 841 | 1,399
Consumer [Member] | Consumer Indirect [Member] | 90+ Days Past Due [Member] |  |  |
Bank's Loan portfolio aging analysis, segregated by class [Abstract] |  |  |
Total Past Due |  | $ 645 | $ 648
[1] | 90+ and Accruing are also included in 90+ Days Past Due column.

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