Presentation of Financial Information (Policies)	6 Months Ended
Jun. 30, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of Business	Nature of Business: SmartFinancial, Inc. (the "Company") is a bank holding company whose principal activity is the ownership and management of its wholly-owned subsidiary, SmartBank (the "Bank"). The Company provides a variety of financial services to individuals and corporate customers through its offices in East and Middle Tennessee, Alabama, and the Florida Panhandle. The Bank’s primary deposit products are noninterest-bearing and interest-bearing demand deposits, savings and money market deposits, and time deposits. Its primary lending products are commercial, residential, and consumer loans.
Basis of Presentation and Accounting Estimates	Basis of Presentation and Accounting Estimates: The accounting and financial reporting policies of the Company and its wholly-owned subsidiary conform to U.S. generally accepted accounting principles (“GAAP”) and reporting guidelines of banking regulatory authorities and regulators. The accompanying interim consolidated financial statements for the Company and its wholly-owned subsidiary have not been audited. All material intercompany balances and transactions have been eliminated. In management’s opinion, all accounting adjustments necessary to accurately reflect the financial position and results of operations on the accompanying financial statements have been made. These adjustments are normal and recurring accruals considered necessary for a fair and accurate presentation. Material estimates that are particularly susceptible to significant change in the near term relate to the determination of the allowance for loan losses, the valuation of foreclosed assets and deferred taxes, other than temporary impairments of securities, the fair value of financial instruments, goodwill, and the fair value of assets acquired and liabilities assumed in acquisitions. The results for interim periods are not necessarily indicative of results for the full year or any other interim periods. The accompanying unaudited consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes appearing in the Company’s annual report on Form 10-K for the year ended December 31, 2019.
Recently Issued and Adopted Accounting Pronouncements; Recently Issued Not Yet Effective Accounting Pronouncements	Recently Issued and Adopted Accounting Pronouncements: As of January 1, 2020, the Company adopted ASU 2019-01, Leases: Codification Improvements (“ASU 2019-01”). ASU 2019-01 provides clarification to increase transparency and comparability among organizations by recognizing lease assets and liabilities on the balance sheet and disclosing essential information about leasing transactions. Specifically, ASU 2019-01 (i) allows the fair value of the underlying asset reported by lessors that are not manufacturers or dealers to continue to be its cost and not fair value as measured under the fair value definition, (ii) allows for the cash flows received for sales-type and direct financing leases to continue to be presented as results from investing, and (iii) clarifies that entities do not have to disclose the effect of the lease standard on adoption year interim amounts. The adoption of ASU 2019-01 did not have a material impact on the Company’s consolidated financial statements. Recently Issued Not Yet Effective Accounting Pronouncements: During interim periods, the Company follows the accounting policies set forth in its annual audited financial statements for the year ended December 31, 2019 as filed in its Annual Report on Form 10-K with the Securities and Exchange Commission ("SEC"). The following is a summary of recent authoritative pronouncements issued but not yet effective that could impact the accounting, reporting, and/or disclosure of financial information by the Company. In October 2019, the Financial Accounting Standards Board approved a delay for the implementation of ASU 2016-13, Financial Instruments - Credit Losses (Topic 326). The Board decided that CECL will be effective for larger Public Business Entities ("PBEs") that are SEC filers, excluding Smaller Reporting Companies ("SRCs") as currently defined by the SEC, for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. For calendar-year-end companies, this will be January 1, 2020. The determination of whether an entity is an SRC will be based on an entity’s most recent assessment in accordance with SEC regulations and the Company meets the regulations as an SRC. For all other entities, the Board decided that CECL will be effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. For all entities, early adoption will continue to be permitted; that is, early adoption is allowed for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years (that is, effective January 1, 2019, for calendar-year-end companies). The Company does not plan to adopt this standard early and being that the Company is an SRC, adoption is required for fiscal years beginning after December 15, 2022. In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. The amendments in this update simplify various aspects of the current guidance to promote consistent application of the standard among reporting entities by moving certain exceptions to the general principles. The amendments are effective for fiscal years beginning after December 15, 2020, with early adoption permitted. The Company does not plan to adopt this standard early and adoption should not have a material impact on the Company’s consolidated financial statements. In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting, which provides temporary optional guidance to ease the potential burden in accounting for reference rate reform. The ASU provides optional expedients and exceptions for applying generally accepted accounting principles to contract modifications and hedging relationships, subject to meeting certain criteria, that reference London Interbank Offered Rate (“LIBOR”). It is intended to help stakeholders during the global market-wide reference rate transition period. The guidance is effective for all entities as of March 12, 2020 through December 31, 2022. The Company is implementing a transition plan to identify and modify its loans and other financial instruments, including certain indebtedness, with attributes that are either directly or indirectly influenced by LIBOR. The Company is assessing ASU 2020-04 and its impact on the transition away from LIBOR for its loan and other financial instruments. In March 2020, various regulatory agencies, including the Board of Governors of the Federal Reserve System and the Federal Deposit Insurance Corporation, (“the agencies”) issued an interagency statement on loan modifications and reporting for financial institutions working with customers affected by COVID-19. The interagency statement was effective immediately and impacted accounting for loan modifications. Under Accounting Standards Codification 310-40, “Receivables – Troubled Debt Restructurings by Creditors,” (“ASC 310-40”), a restructuring of debt constitutes a troubled debt restructuring (“TDR”) if the creditor, for economic or legal reasons related to the debtor’s financial difficulties, grants a concession to the debtor that it would not otherwise consider. The agencies confirmed with the staff of the FASB that short-term modifications made on a good faith basis in response to COVID-19 to borrowers who were current prior to any relief, are not to be considered TDRs. This includes short-term (e.g., six months) modifications such as payment deferrals, fee waivers, extensions of repayment terms, or other delays in payment that are insignificant. Borrowers considered current are those that are less than 30 days past due on their contractual payments at the time a modification program is implemented. In regard to loans not otherwise reportable as past due, financial institutions are not expected to designate loans with deferrals granted due to COVID-19 as past due because of the deferral. A loan’s payment date is governed by the due date stipulated in the legal agreement. If a financial institution agrees to a payment deferral, these loans would not be considered past due during the period of the deferral. In regard to nonaccrual and charge-offs of loans, during short-term COVID-19 modifications, these loans generally should not be reported as nonaccrual or classified.
Reclassifications	Reclassifications: Certain captions and amounts in the 2019 consolidated financial statements were reclassified to conform to the 2020 financial statement presentation. These reclassifications had no impact on net income or shareholders’ equity as previously reported.
Earnings Per Share	Basic earnings per common share is computed by dividing net income available to common stockholders by the weighted-average number of common shares outstanding. Diluted earnings per common share is computed by dividing net income available to common shareholders by the weighted average number of common shares outstanding and dilutive common share equivalents using the treasury stock method. Dilutive common share equivalents include common shares issuable upon exercise of outstanding stock options and restricted stock.

Presentation of Financial Information (Policies)

6 Months Ended

Jun. 30, 2020

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Nature of Business:

SmartFinancial, Inc. (the "Company") is a bank holding company whose principal activity is the ownership and management of its wholly-owned subsidiary, SmartBank (the "Bank"). The Company provides a variety of financial services to individuals and corporate customers through its offices in East and Middle Tennessee, Alabama, and the Florida Panhandle. The Bank’s primary deposit products are noninterest-bearing and interest-bearing demand deposits, savings and money market deposits, and time deposits. Its primary lending products are commercial, residential, and consumer loans.

Basis of Presentation and Accounting Estimates

Basis of Presentation and Accounting Estimates:

The accounting and financial reporting policies of the Company and its wholly-owned subsidiary conform to U.S. generally accepted accounting principles (“GAAP”) and reporting guidelines of banking regulatory authorities and regulators. The accompanying interim consolidated financial statements for the Company and its wholly-owned subsidiary have not been audited. All material intercompany balances and transactions have been eliminated.

In management’s opinion, all accounting adjustments necessary to accurately reflect the financial position and results of operations on the accompanying financial statements have been made. These adjustments are normal and recurring accruals considered necessary for a fair and accurate presentation. Material estimates that are particularly susceptible to significant change in the near term relate to the determination of the allowance for loan losses, the valuation of foreclosed assets and deferred taxes, other than temporary impairments of securities, the fair value of financial instruments, goodwill, and the fair value of assets acquired and liabilities assumed in acquisitions. The results for interim periods are not necessarily indicative of results for the full year or any other interim periods. The accompanying unaudited consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes appearing in the Company’s annual report on Form 10-K for the year ended December 31, 2019.

Recently Issued and Adopted Accounting Pronouncements; Recently Issued Not Yet Effective Accounting Pronouncements

Recently Issued and Adopted Accounting Pronouncements:

As of January 1, 2020, the Company adopted ASU 2019-01, Leases: Codification Improvements (“ASU 2019-01”). ASU 2019-01 provides clarification to increase transparency and comparability among organizations by recognizing lease assets and liabilities on the balance sheet and disclosing essential information about leasing transactions. Specifically, ASU 2019-01 (i) allows the fair value of the underlying asset reported by lessors that are not manufacturers or dealers to continue to be its cost and not fair value as measured under the fair value definition, (ii) allows for the cash flows received for sales-type and direct financing leases to continue to be presented as results from investing, and (iii) clarifies that entities do not have to disclose the effect of the lease standard on adoption year interim amounts. The adoption of ASU 2019-01 did not have a material impact on the Company’s consolidated financial statements.

Recently Issued Not Yet Effective Accounting Pronouncements:

During interim periods, the Company follows the accounting policies set forth in its annual audited financial statements for the year ended December 31, 2019 as filed in its Annual Report on Form 10-K with the Securities and Exchange Commission ("SEC"). The following is a summary of recent authoritative pronouncements issued but not yet effective that could impact the accounting, reporting, and/or disclosure of financial information by the Company.

In October 2019, the Financial Accounting Standards Board approved a delay for the implementation of ASU 2016-13, Financial Instruments - Credit Losses (Topic 326). The Board decided that CECL will be effective for larger Public Business Entities ("PBEs") that are SEC filers, excluding Smaller Reporting Companies ("SRCs") as currently defined by the SEC, for fiscal years beginning after December 15, 2019, and interim periods within those fiscal years. For calendar-year-end companies, this will be January 1, 2020. The determination of whether an entity is an SRC will be based on an entity’s most recent assessment in accordance with SEC regulations and the Company meets the regulations as an SRC.

For all other entities, the Board decided that CECL will be effective for fiscal years beginning after December 15, 2022, including interim periods within those fiscal years. For all entities, early adoption will continue to be permitted; that is, early adoption is allowed for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years (that is, effective January 1, 2019, for calendar-year-end companies). The Company does not plan to adopt this standard early and being that the Company is an SRC, adoption is required for fiscal years beginning after December 15, 2022.

In December 2019, the FASB issued ASU 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. The amendments in this update simplify various aspects of the current guidance to promote consistent application of the standard among reporting entities by moving certain exceptions to the general principles. The amendments are effective for fiscal years beginning after December 15, 2020, with early adoption permitted. The Company does not plan to adopt this standard early and adoption should not have a material impact on the Company’s consolidated financial statements.

In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting, which provides temporary optional guidance to ease the potential burden in accounting for reference rate reform. The ASU provides optional expedients and exceptions for applying generally accepted accounting principles to contract modifications and hedging relationships, subject to meeting certain criteria, that reference London Interbank Offered Rate (“LIBOR”). It is intended to help stakeholders during the global market-wide reference rate transition period. The guidance is effective for all entities as of March 12, 2020 through December 31, 2022. The Company is implementing a transition plan to identify and modify its loans and other financial instruments, including certain indebtedness, with attributes that are either directly or indirectly influenced by LIBOR. The Company is assessing ASU 2020-04 and its impact on the transition away from LIBOR for its loan and other financial instruments.

In March 2020, various regulatory agencies, including the Board of Governors of the Federal Reserve System and the Federal Deposit Insurance Corporation, (“the agencies”) issued an interagency statement on loan modifications and reporting for financial institutions working with customers affected by COVID-19. The interagency statement was effective immediately and impacted accounting for loan modifications. Under Accounting Standards Codification 310-40, “Receivables – Troubled Debt Restructurings by Creditors,” (“ASC 310-40”), a restructuring of debt constitutes a troubled debt restructuring (“TDR”) if the creditor, for economic or legal reasons related to the debtor’s financial difficulties, grants a concession to the debtor that it would not otherwise consider. The agencies confirmed with the staff of the FASB that short-term modifications made on a good faith basis in response to COVID-19 to borrowers who were current prior to any relief, are not to be considered TDRs. This includes short-term (e.g., six months) modifications such as payment deferrals, fee waivers, extensions of repayment terms, or other delays in payment that are insignificant. Borrowers considered current are those that are less than 30 days past due on their contractual payments at the time a modification program is implemented. In regard to loans not otherwise reportable as past due, financial institutions are not expected to designate loans with deferrals granted due to COVID-19 as past due because of the deferral. A loan’s payment date is governed by the due date stipulated in the legal agreement. If a financial institution agrees to a payment deferral, these loans would not be considered past due during the period of the deferral. In regard to nonaccrual and charge-offs of loans, during short-term COVID-19 modifications, these loans generally should not be reported as nonaccrual or classified.

Reclassifications

Reclassifications:

Certain captions and amounts in the 2019 consolidated financial statements were reclassified to conform to the 2020 financial statement presentation. These reclassifications had no impact on net income or shareholders’ equity as previously reported.

Earnings Per Share

Basic earnings per common share is computed by dividing net income available to common stockholders by the weighted-average number of common shares outstanding. Diluted earnings per common share is computed by dividing net income available to common shareholders by the weighted average number of common shares outstanding and dilutive common share equivalents using the treasury stock method. Dilutive common share equivalents include common shares issuable upon exercise of outstanding stock options and restricted stock.