Significant Accounting Policies (Policies)	9 Months Ended
Sep. 30, 2020
Accounting Policies [Abstract]
New Accounting Pronouncements, Policy [Policy Text Block]	Recently Issued Accounting Pronouncements In June 2016, the FASB issued ASU 2016-13, Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments, which changes the impairment model for most financial assets. This Update is intended to improve financial reporting by requiring timelier recording of credit losses on loans and other financial instruments held by financial institutions and other organizations. The underlying premise of the Update is that financial assets measured at amortized cost should be presented at the net amount expected to be collected, through an allowance for credit losses that is deducted from the amortized cost basis. The allowance for credit losses should reflect management’s current estimate of credit losses that are expected to occur over the remaining life of a financial asset. The income statement will be effected for the measurement of credit losses for newly recognized financial assets, as well as the expected increases or decreases of expected credit losses that have taken place during the period. With certain exceptions, transition to the new requirements will be through a cumulative-effect adjustment to opening retained earnings as of the beginning of the first reporting period in which the guidance is adopted. In November 2019, the FASB issued ASU 2019-10, Financial Instruments ‒ Credit Losses (Topic 326), Derivatives and Hedging (Topic 815), and Leases (Topic 842). This Update defers the effective date of ASU 2016-13 for SEC filers that are eligible to be smaller reporting companies, non-SEC filers, and all other companies, to fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. Management will continue to monitor model output throughout the deferral period. CECL Adoption. The Company continues to monitor the opportunity to early adopt ASC Topic 326, which replaces the current incurred loss approach for measuring credit losses with an expected loss model ("CECL"). CECL applies to financial assets subject to credit losses and measured at amortized cost and certain off-balance-sheet credit exposures, which include, but are not limited to, loans, leases, held-to-maturity securities, loan commitments and financial guarantees. The adoption of this guidance is expected to result in an increase of the allowance for credit losses, an increase in the allowance for unfunded commitments, and a reduction of retained earnings. Incurred loss will be used until the tax benefits associated with increased reserves are maximized. Management may consider early adoption of CECL, which would have no initial impact to the income statement. In November 2019, the FASB issued ASU 2019-11, Codification Improvements to Topic 326,* Financial Instruments – Credit Losses, to clarify its new credit impairment guidance in ASC 326,* based on implementation issues raised by stakeholders. This Update clarified, among other things, that expected recoveries are to be included in the allowance for credit losses for these financial assets; an accounting policy election can be made to adjust the effective interest rate for existing troubled debt restructurings based on the prepayment assumptions instead of the prepayment assumptions applicable immediately prior to the restructuring event; and extends the practical expedient to exclude accrued interest receivable from all additional relevant disclosures involving amortized cost basis. The effective dates in this Update are the same as those applicable for ASU 2019-10. The Company is currently evaluating the impact the adoption of the standard will have on the Company’s financial position or results of operations. In March 2020, the FASB issued ASU 2020-3, Codification Improvements to Financial Instruments. This ASU was issued to improve and clarify various financial instruments topics, including the current expected credit losses (CECL) standard issued in 2016. The ASU includes seven issues that describe the areas of improvement and the related amendments to GAAP; they are intended to make the standards easier to understand and apply and to eliminate inconsistencies, and they are narrow in scope and are not expected to significantly change practice for most entities. Among its provisions, the ASU clarifies that all entities, other than public business entities that elected the fair value option, are required to provide certain fair value disclosures under ASC 825, Financial Instruments, in both interim and annual financial statements. It also clarifies that the contractual term of a net investment in a lease under Topic 842 should be the contractual term used to measure expected credit losses under Topic 326. Amendments related to ASU 2019-04 are effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption is not permitted before an entity’s adoption of ASU 2016-01. Amendments related to ASU 2016-13 for entities that have not yet adopted that guidance are effective upon adoption of the amendments in ASU 2016-13. Early adoption is not permitted before an entity’s adoption of ASU 2016-13. Amendments related to ASU 2016-13 for entities that have adopted that guidance are effective for fiscal years beginning after December 15, 2019, including interim periods within those years. Other amendments are effective upon issuance of this ASU. The Company is currently evaluating the impact the adoption of the standard will have on the Company’s financial position or results of operations. In January 2020, the FASB issued ASU 2020-4, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting, March 2020, to provide temporary optional expedients and exceptions to the U.S. GAAP guidance on contract modifications and hedge accounting to ease the financial reporting burdens of the expected market transition from LIBOR and other interbank offered rates to alternative reference rates, such as Secured Overnight Financing Rate. Entities can elect not to apply certain modification accounting requirements to contracts affected by what the guidance calls reference rate reform, if certain criteria are met. An entity that makes this election would not have to re-measure the contracts at the modification date or reassess a previous accounting determination. Also, entities can elect various optional expedients that would allow them to continue applying hedge accounting for hedging relationships affected by reference rate reform, if certain criteria are met, and can make a one-time election to sell and/or reclassify held-to-maturity debt securities that reference an interest rate affected by reference rate reform. The amendments in this ASU are effective for all entities upon issuance through December 31, 2022. It is too early to predict whether a new rate index replacement and the adoption of the ASU will have a material impact on the Company's financial statements.
Reclassification, Comparability Adjustment [Policy Text Block]	Reclassification of Comparative Amounts Certain comparative amounts for prior years have been reclassified to conform to current-year presentations. Such reclassifications did not affect net income or retained earnings.

Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2020

New Accounting Pronouncements, Policy [Policy Text Block]

Recently Issued Accounting Pronouncements

In June 2016, the FASB issued ASU 2016-13, Financial Instruments – Credit Losses: Measurement of Credit Losses on Financial Instruments, which changes the impairment model for most financial assets. This Update is intended to improve financial reporting by requiring timelier recording of credit losses on loans and other financial instruments held by financial institutions and other organizations. The underlying premise of the Update is that financial assets measured at amortized cost should be presented at the net amount expected to be collected, through an allowance for credit losses that is deducted from the amortized cost basis. The allowance for credit losses should reflect management’s current estimate of credit losses that are expected to occur over the remaining life of a financial asset. The income statement will be effected for the measurement of credit losses for newly recognized financial assets, as well as the expected increases or decreases of expected credit losses that have taken place during the period. With certain exceptions, transition to the new requirements will be through a cumulative-effect adjustment to opening retained earnings as of the beginning of the first reporting period in which the guidance is adopted. In November 2019, the FASB issued ASU 2019-10, Financial Instruments ‒ Credit Losses (Topic 326), Derivatives and Hedging (Topic 815), and Leases (Topic 842). This Update defers the effective date of ASU 2016-13 for SEC filers that are eligible to be smaller reporting companies, non-SEC filers, and all other companies, to fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. Management will continue to monitor model output throughout the deferral period.

CECL Adoption. The Company continues to monitor the opportunity to early adopt ASC Topic 326, which replaces the current incurred loss approach for measuring credit losses with an expected loss model ("CECL"). CECL applies to financial assets subject to credit losses and measured at amortized cost and certain off-balance-sheet credit exposures, which include, but are not limited to, loans, leases, held-to-maturity securities, loan commitments and financial guarantees. The adoption of this guidance is expected to result in an increase of the allowance for credit losses, an increase in the allowance for unfunded commitments, and a reduction of retained earnings. Incurred loss will be used until the tax benefits associated with increased reserves are maximized. Management may consider early adoption of CECL, which would have no initial impact to the income statement.

In November 2019, the FASB issued ASU 2019-11, Codification Improvements to Topic 326, Financial Instruments – Credit Losses, to clarify its new credit impairment guidance in ASC 326, based on implementation issues raised by stakeholders. This Update clarified, among other things, that expected recoveries are to be included in the allowance for credit losses for these financial assets; an accounting policy election can be made to adjust the effective interest rate for existing troubled debt restructurings based on the prepayment assumptions instead of the prepayment assumptions applicable immediately prior to the restructuring event; and extends the practical expedient to exclude accrued interest receivable from all additional relevant disclosures involving amortized cost basis. The effective dates in this Update are the same as those applicable for ASU 2019-10. The Company is currently evaluating the impact the adoption of the standard will have on the Company’s financial position or results of operations.

In March 2020, the FASB issued ASU 2020-3, Codification Improvements to Financial Instruments. This ASU was issued to improve and clarify various financial instruments topics, including the current expected credit losses (CECL) standard issued in 2016. The ASU includes seven issues that describe the areas of improvement and the related amendments to GAAP; they are intended to make the standards easier to understand and apply and to eliminate inconsistencies, and they are narrow in scope and are not expected to significantly change practice for most entities. Among its provisions, the ASU clarifies that all entities, other than public business entities that elected the fair value option, are required to provide certain fair value disclosures under ASC 825, Financial Instruments, in both interim and annual financial statements. It also clarifies that the contractual term of a net investment in a lease under Topic 842 should be the contractual term used to measure expected credit losses under Topic 326. Amendments related to ASU 2019-04 are effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Early adoption is not permitted before an entity’s adoption of ASU 2016-01. Amendments related to ASU 2016-13 for entities that have not yet adopted that guidance are effective upon adoption of the amendments in ASU 2016-13. Early adoption is not permitted before an entity’s adoption of ASU 2016-13. Amendments related to ASU 2016-13 for entities that have adopted that guidance are effective for fiscal years beginning after December 15, 2019, including interim periods within those years. Other amendments are effective upon issuance of this ASU. The Company is currently evaluating the impact the adoption of the standard will have on the Company’s financial position or results of operations.

In January 2020, the FASB issued ASU 2020-4, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting, March 2020, to provide temporary optional expedients and exceptions to the U.S. GAAP guidance on contract modifications and hedge accounting to ease the financial reporting burdens of the expected market transition from LIBOR and other interbank offered rates to alternative reference rates, such as Secured Overnight Financing Rate. Entities can elect not to apply certain modification accounting requirements to contracts affected by what the guidance calls reference rate reform, if certain criteria are met. An entity that makes this election would not have to re-measure the contracts at the modification date or reassess a previous accounting determination. Also, entities can elect various optional expedients that would allow them to continue applying hedge accounting for hedging relationships affected by reference rate reform, if certain criteria are met, and can make a one-time election to sell and/or reclassify held-to-maturity debt securities that reference an interest rate affected by reference rate reform. The amendments in this ASU are effective for all entities upon issuance through December 31, 2022. It is too early to predict whether a new rate index replacement and the adoption of the ASU will have a material impact on the Company's financial statements.

Reclassification, Comparability Adjustment [Policy Text Block]

Reclassification of Comparative Amounts

Certain comparative amounts for prior years have been reclassified to conform to current-year presentations. Such reclassifications did not affect net income or retained earnings.