Significant Accounting Policies (Policies)	6 Months Ended
Jun. 30, 2020
Accounting Policies [Abstract]
Consolidation, Policy [Policy Text Block]	Principles of Consolidation The accompanying consolidated financial statements include the accounts of the Holding Company and its subsidiaries. All significant intercompany balances and transactions have been eliminated in consolidation. As of June 30, 2020 and December 31, 2019, the Company had one wholly-owned trust formed in 2005 to issue trust preferred securities and related common securities. We have not consolidated the accounts of the Trust in our consolidated financial statements in accordance with Financial Accounting Standards Board Accounting Standards Codification (“FASB”), Consolidation (“ASC 810”). We are not considered the primary beneficiary of the Trust (variable interest entity). As a result, the junior subordinated debentures issued by the Holding Company to the Trust are reflected on the Company’s Consolidated Balance Sheets.
Lessee, Leases [Policy Text Block]	Leases We determine if an arrangement is a lease at inception. Operating leases are included in Other Assets and Other Liabilities in our Consolidated Balance Sheets. Operating lease right-of-use assets and operating lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. As most of our leases do not provide an incremental borrowing rate, we use borrowing rates available under our existing line of credit with the Federal Home Loan Bank of San Francisco for periods similar to the lease terms as our incremental borrowing rate to determine the present value of future lease payments. Our lease terms may include options to extend or terminate the lease which we recognize when it is reasonably certain that we will exercise that option. Lease expense for minimum lease payments is recognized on a straight-line basis over the lease term.
New Accounting Pronouncements, Policy [Policy Text Block]	Application of new accounting guidance In August 2018, the FASB issued ASU No. 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement. The amendments in this ASU remove, modify, and add disclosure requirements for the fair value reporting of assets and liabilities. The modifications and additions relate to Level 3 fair value measurements at the end of the reporting period. ASU 2018-13 is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. We adopted the requirements of this ASU on January 1, 2020 and added disclosure about significant observable inputs used to develop Level 3 fair value measurements prospectively. As the ASU’s requirements only relate to disclosures, the amendments will not impact our financial condition or results of operations.

Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2020

Consolidation, Policy [Policy Text Block]

Principles of Consolidation

The accompanying consolidated financial statements include the accounts of the Holding Company and its subsidiaries. All significant intercompany balances and transactions have been eliminated in consolidation. As of June 30, 2020 and December 31, 2019, the Company had one wholly-owned trust formed in 2005 to issue trust preferred securities and related common securities. We have not consolidated the accounts of the Trust in our consolidated financial statements in accordance with Financial Accounting Standards Board Accounting Standards Codification (“FASB”), Consolidation (“ASC 810”). We are not considered the primary beneficiary of the Trust (variable interest entity). As a result, the junior subordinated debentures issued by the Holding Company to the Trust are reflected on the Company’s Consolidated Balance Sheets.

Lessee, Leases [Policy Text Block]

Leases

We determine if an arrangement is a lease at inception. Operating leases are included in Other Assets and Other Liabilities in our Consolidated Balance Sheets. Operating lease right-of-use assets and operating lease liabilities are recognized based on the present value of the future minimum lease payments over the lease term at commencement date. As most of our leases do not provide an incremental borrowing rate, we use borrowing rates available under our existing line of credit with the Federal Home Loan Bank of San Francisco for periods similar to the lease terms as our incremental borrowing rate to determine the present value of future lease payments. Our lease terms may include options to extend or terminate the lease which we recognize when it is reasonably certain that we will exercise that option. Lease expense for minimum lease payments is recognized on a straight-line basis over the lease term.

New Accounting Pronouncements, Policy [Policy Text Block]

Application of new accounting guidance

In August 2018, the FASB issued ASU No. 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement. The amendments in this ASU remove, modify, and add disclosure requirements for the fair value reporting of assets and liabilities. The modifications and additions relate to Level 3 fair value measurements at the end of the reporting period. ASU 2018-13 is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. We adopted the requirements of this ASU on January 1, 2020 and added disclosure about significant observable inputs used to develop Level 3 fair value measurements prospectively. As the ASU’s requirements only relate to disclosures, the amendments will not impact our financial condition or results of operations.