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v3.19.1

Loans and Credit Quality - Narrative (Details) |  | 12 Months Ended
--- | --- | ---
Apr. 01, 2014 USD ($) purchased_loan | Dec. 31, 2018 USD ($) financing_commitment contract | Dec. 31, 2017 USD ($) contract | Dec. 31, 2016 USD ($) contract
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Loans secured by real estate |  | 73.00% |  |
Loans unsecured |  | 2.00% |  |
Loans secured for general commercial uses |  | 25.00% |  |
Net nonaccrual loans |  | $ 14,694,000 | $ 21,159,000 |
Interest income earned on nonaccrual loans |  | 1,300,000 | 1,400,000 | $ 676,000
Interest income earned on nonaccrual loans with no balance |  | 159,000 | 120,000 | 181,000
Greater than 90 days still accruing |  | 0 | 252,000 |
Recorded investment in loans considered to be impaired |  | 31,714,000 | 31,967,000 |
Impaired loan, average recorded investment |  | 34,689,000 | 36,895,000 | 42,600,000
Impaired loan, interest income on accrual method |  | 847,000 | 983,000 | $ 2,400,000
Loans classified as troubled debt restructuring |  | $ 14,831,000 | 23,800,000 |
Commitment to Lend | financing_commitment |  | 0 |  |
Write down on TDR |  | $ 1,300,000 | $ 731,000 |
TDR with specific impairment | contract |  | 1 | 2 |
Number of Contracts | contract |  | 6 | 0 | 0
Unfunded loan commitments |  | $ 15,000 | $ 15,000 |
Loans pledged as collateral |  | 0 | 0 |
Alaska Pacific Bank |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Purchased impaired loans | purchased_loan | 18 |  |  |
Accretable difference on purchased loans | $ 0 |  |  |
Fair value of purchased credit impaired loans | $ 3,900,000 | $ 235,000 | $ 923,000 |
Minimum |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Recovery time for market |  | 18 months |  |
Maximum |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Recovery time for market |  | 24 months |  |

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