Recently Issued Authoritative Accounting Guidance	3 Months Ended
Mar. 31, 2018
Accounting Changes and Error Corrections [Abstract]
Recently Issued Authoritative Accounting Guidance	Note 11—Recently Issued Authoritative Accounting Guidance Accounting Standards Update (“ASU”) 2014-09, “Revenue from Contracts with Customers.” ASU 2014-09 implements a comprehensive new revenue recognition standard that supersedes substantially all existing revenue recognition guidance. The new standard’s core principle is that a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. To achieve that core principle, an entity applies the following steps: (i) identify the contract(s) with a customer, (ii) identify the performance obligations in the contract, (iii) determine the transaction price, (iv) allocate the transaction price to the performance obligations in the contract and (v) recognize revenue when (or as) the entity satisfies a performance obligation. ASU 2015-4 “Revenue from Contracts with Customers – Deferral of the Effective Date” deferred the effective date of ASU 2014-09 by one year and as a result, the new standard became effective in the first quarter of 2018. The Company’s revenue is comprised of net interest income on financial assets and financial liabilities, which is explicitly excluded from the scope of ASU 2014-09, and non-interest income. Based on the Company’s analysis of the effect of the new standard on its recurring revenue streams, the Company did not expect these changes to have a significant impact on the Company’s financial statement, and upon adoption in the first quarter of 2018, no adjustment to opening retained earnings was recorded. See Note 1 for additional information related to the Company’s consideration and analysis of this new standard. ASU 2016-1, “Financial Instruments – Overall: Recognition and Measurement of Financial Assets and Financial Liabilities.” ASU 2016-1, among other things, (i) requires equity investments, with certain exceptions, to be measured at fair value with changes in fair value recognized in net income, (ii) simplifies the impairment assessment of equity investments without readily determinable fair values by requiring a qualitative assessment to identify impairment, (iii) eliminates the requirement for public business entities to disclose the methods and significant assumptions used to estimate the fair value that is required to be disclosed for financial instruments measured at amortized cost on the balance sheet, (iv) requires public business entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes, (v) requires an entity to present separately in other comprehensive income the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability at fair value in accordance with the fair value option for financial instruments, (vi) requires separate presentation of financial assets and financial liabilities by measurement category and form of financial asset on the balance sheet or the accompanying notes to the financial statements and (vii) clarifies that an entity should evaluate the need for a valuation allowance on a deferred tax asset related to available-for-sale securities. ASU 2016-1 became effective for the Company on January 1, 2018 and did not have a significant impact on the Company’s financial statements. ASU 2016-02, “Leases.” ASU 2016-02 will amend current lease accounting to require lessees to recognize (i) a lease liability, which is a lessee’s obligation to make lease payments arising from a lease, measured on a discounted basis, and (ii) a right-of-use asset, which is an asset that represents the lessee’s right to use, or control the use of, a specified asset for the lease term. ASU 2016-02 does not significantly change lease accounting requirements applicable to lessors; however, certain changes were made to align, where necessary, lessor accounting with the lessee accounting model. The amended guidance will be effective in the first quarter of 2019 and will require transition using a modified retrospective approach for leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements. The Company continues to evaluate the provision of the new lease standard but, due to the small number and dollar amount of lease agreements presently in effect for the Company, does not expect the new guidance will have a significant impact on the Company’s financial statements. ASU 2016-09, “Compensation – Stock Compensation: Improvements to Employee Share-Based Payment Accounting.” ASU 2016-09 amends current guidance such that all excess tax benefits and tax deficiencies related to share-based payment awards will be recognized as income tax expense or benefit in the income statement during the period in which they occur. Previously, such amounts were recorded in capital surplus. Additionally, excess tax benefits will be classified along with other income tax cash flows as an operating activity rather than a financing activity, as was previously the case. ASU 2016-09 also provides that any entity can make an entity-wide accounting policy election to either estimate the number of awards that are expected to vest, which is the current requirement, or account for forfeitures when they occur. ASU 2016-09 became effective January 1, 2017 and did not have a significant impact on the Company’s financial statements. ASU 2016-13, “Financial Instruments – Credit Losses.” ASU 2016-13 implements a comprehensive change in estimating the allowances for loan losses from the current model of losses inherent in the loan portfolio to a current expected credit loss model that generally is expected to result in earlier recognition of allowances for losses. Additionally, purchase accounting rules have been modified as well as credit losses on held-to-maturity debt securities. ASU 2016-13 will be effective in the first quarter of 2020. While the Company generally expects that the implementation of ASU 2016-13 will increase their allowance for loan losses balance, the Company is continuing to evaluate the potential impact on the Company’s financial statements. ASU 2017-04, “Intangibles – Goodwill and Other.” ASU 2017-04 will amend and simplify current goodwill impairment testing to eliminate Step 2 from the current provisions. Under the new guidance, an entity should perform the goodwill impairment test by comparing the fair value of a reporting unit with its carrying value and recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value. An entity still has the option to perform the quantitative assessment for a reporting unit to determine if a quantitative impairment test is necessary. ASU 2017-04 will be effective for the Company on January 1, 2020 and is not expected to have a significant impact on the Company’s financial statements. ASU 2017-07, “Compensation – Retirement Benefits, Improving the Presentation of Net Periodic Pension Cost and Net Periodic Post-Retirement Benefit Cost.” ASU 2017-17 will require employers that sponsor defined benefit pension plans to present the service cost component of net periodic benefit cost in the same income statement line item as other employee compensation costs arising from services rendered during the period. Other components of the net periodic benefit cost will be presented separately from the service cost component. ASU 2017-17 became effective in 2018 and, as the Company froze its defined benefit pension plan in 2004, there is no service cost component of its net periodic benefit cost and therefore did not have an impact on the Company’s financial statements. ASU 2017-08, “Receivables – Nonrefundable Fees and Other Costs: Premium Amortization on Purchased Callable Debt Securities.” ASU 2017-08 addresses the amortization method for all callable bonds purchased at a premium to par. Under the revised guidance, entities will be required to amortize premiums on callable bonds to the earliest call date. ASU 2017-08 is effective in 2019 although early adoption is permitted. The Company elected to early adopt ASU 2017-08 in the first quarter of 2017. The adoption of this guidance did not have a material impact on the Company’s financial statements. ASU 2018-02, “Income Statement – Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income.” ASU 2018-02 was issued to address the income tax accounting treatment of the stranded tax effects within other comprehensive income due to the prohibition of backward tracing due to an income tax rate change that was initially recorded in other comprehensive income. This issue came about from the enactment of the Tax Cuts and Jobs Act on December 22, 2017 that changed the Company’s income tax rate from 35% to 21%. The ASU changed current accounting whereby an entity may elect to reclassify the stranded tax effect from accumulated other comprehensive income to retained earnings. The ASU is effective for periods beginning after December 15, 2018 although early adoption was permitted. The Company early adopted ASU 2018-02 in the first quarter of 2018 and reclassified its stranded tax debit of $5,759,000 within accumulated other comprehensive income to retained earnings.

Note 11—Recently Issued Authoritative Accounting Guidance

Accounting Standards Update (“ASU”) 2014-09, “Revenue from Contracts with Customers.” ASU 2014-09 implements a comprehensive new revenue recognition standard that supersedes substantially all existing revenue recognition guidance. The new standard’s core principle is that a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. To achieve that core principle, an entity applies the following steps: (i) identify the contract(s) with a customer, (ii) identify the performance obligations in the contract, (iii) determine the transaction price, (iv) allocate the transaction price to the performance obligations in the contract and (v) recognize revenue when (or as) the entity satisfies a performance obligation. ASU 2015-4 “Revenue from Contracts with Customers – Deferral of the Effective Date” deferred the effective date of ASU 2014-09 by one year and as a result, the new standard became effective in the first quarter of 2018. The Company’s revenue is comprised of net interest income on financial assets and financial liabilities, which is explicitly excluded from the scope of ASU 2014-09, and non-interest income. Based on the Company’s analysis of the effect of the new standard on its recurring revenue streams, the Company did not expect these changes to have a significant impact on the Company’s financial statement, and upon adoption in the first quarter of 2018, no adjustment to opening retained earnings was recorded. See Note 1 for additional information related to the Company’s consideration and analysis of this new standard.

ASU 2016-1, “Financial Instruments – Overall: Recognition and Measurement of Financial Assets and Financial Liabilities.” ASU 2016-1, among other things, (i) requires equity investments, with certain exceptions, to be measured at fair value with changes in fair value recognized in net income, (ii) simplifies the impairment assessment of equity investments without readily determinable fair values by requiring a qualitative assessment to identify impairment, (iii) eliminates the requirement for public business entities to disclose the methods and significant assumptions used to estimate the fair value that is required to be disclosed for financial instruments measured at amortized cost on the balance sheet, (iv) requires public business entities to use the exit price notion when measuring the fair value of financial instruments for disclosure purposes, (v) requires an entity to present separately in other comprehensive income the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability at fair value in accordance with the fair value option for financial instruments, (vi) requires separate presentation of financial assets and financial liabilities by measurement category and form of financial asset on the balance sheet or the accompanying notes to the financial statements and (vii) clarifies that an entity should evaluate the need for a valuation allowance on a deferred tax asset related to available-for-sale securities. ASU 2016-1 became effective for the Company on January 1, 2018 and did not have a significant impact on the Company’s financial statements.

ASU 2016-02, “Leases.” ASU 2016-02 will amend current lease accounting to require lessees to recognize (i) a lease liability, which is a lessee’s obligation to make lease payments arising from a lease, measured on a discounted basis, and (ii) a right-of-use asset, which is an asset that represents the lessee’s right to use, or control the use of, a specified asset for the lease term. ASU 2016-02 does not significantly change lease accounting requirements applicable to lessors; however, certain changes were made to align, where necessary, lessor accounting with the lessee accounting model. The amended guidance will be effective in the first quarter of 2019 and will require transition using a modified retrospective approach for leases existing at, or entered into after, the beginning of the earliest comparative period presented in the financial statements. The Company continues to evaluate the provision of the new lease standard but, due to the small number and dollar amount of lease agreements presently in effect for the Company, does not expect the new guidance will have a significant impact on the Company’s financial statements.

ASU 2016-09, “Compensation – Stock Compensation: Improvements to Employee Share-Based Payment Accounting.” ASU 2016-09 amends current guidance such that all excess tax benefits and tax deficiencies related to share-based payment awards will be recognized as income tax expense or benefit in the income statement during the period in which they occur. Previously, such amounts were recorded in capital surplus. Additionally, excess tax benefits will be classified along with other income tax cash flows as an operating activity rather than a financing activity, as was previously the case. ASU 2016-09 also provides that any entity can make an entity-wide accounting policy election to either estimate the number of awards that are expected to vest, which is the current requirement, or account for forfeitures when they occur. ASU 2016-09 became effective January 1, 2017 and did not have a significant impact on the Company’s financial statements.

ASU 2016-13, “Financial Instruments – Credit Losses.” ASU 2016-13 implements a comprehensive change in estimating the allowances for loan losses from the current model of losses inherent in the loan portfolio to a current expected credit loss model that generally is expected to result in earlier recognition of allowances for losses. Additionally, purchase accounting rules have been modified as well as credit losses on held-to-maturity debt securities. ASU 2016-13 will be effective in the first quarter of 2020. While the Company generally expects that the implementation of ASU 2016-13 will increase their allowance for loan losses balance, the Company is continuing to evaluate the potential impact on the Company’s financial statements.

ASU 2017-04, “Intangibles – Goodwill and Other.” ASU 2017-04 will amend and simplify current goodwill impairment testing to eliminate Step 2 from the current provisions. Under the new guidance, an entity should perform the goodwill impairment test by comparing the fair value of a reporting unit with its carrying value and recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value. An entity still has the option to perform the quantitative assessment for a reporting unit to determine if a quantitative impairment test is necessary. ASU 2017-04 will be effective for the Company on January 1, 2020 and is not expected to have a significant impact on the Company’s financial statements.

ASU 2017-07, “Compensation – Retirement Benefits, Improving the Presentation of Net Periodic Pension Cost and Net Periodic Post-Retirement Benefit Cost.” ASU 2017-17 will require employers that sponsor defined benefit pension plans to present the service cost component of net periodic benefit cost in the same income statement line item as other employee compensation costs arising from services rendered during the period. Other components of the net periodic benefit cost will be presented separately from the service cost component. ASU 2017-17 became effective in 2018 and, as the Company froze its defined benefit pension plan in 2004, there is no service cost component of its net periodic benefit cost and therefore did not have an impact on the Company’s financial statements.

ASU 2017-08, “Receivables – Nonrefundable Fees and Other Costs: Premium Amortization on Purchased Callable Debt Securities.” ASU 2017-08 addresses the amortization method for all callable bonds purchased at a premium to par. Under the revised guidance, entities will be required to amortize premiums on callable bonds to the earliest call date. ASU 2017-08 is effective in 2019 although early adoption is permitted. The Company elected to early adopt ASU 2017-08 in the first quarter of 2017. The adoption of this guidance did not have a material impact on the Company’s financial statements.

ASU 2018-02, “Income Statement – Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income.” ASU 2018-02 was issued to address the income tax accounting treatment of the stranded tax effects within other comprehensive income due to the prohibition of backward tracing due to an income tax rate change that was initially recorded in other comprehensive income. This issue came about from the enactment of the Tax Cuts and Jobs Act on December 22, 2017 that changed the Company’s income tax rate from 35% to 21%. The ASU changed current accounting whereby an entity may elect to reclassify the stranded tax effect from accumulated other comprehensive income to retained earnings. The ASU is effective for periods beginning after December 15, 2018 although early adoption was permitted. The Company early adopted ASU 2018-02 in the first quarter of 2018 and reclassified its stranded tax debit of $5,759,000 within accumulated other comprehensive income to retained earnings.