SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	12 Months Ended
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	Dec. 31, 2018
Accounting Policies [Abstract]
Nature of Business	Nature of Business Ameris Bancorp and subsidiaries (the “Company” or “Ameris”) is a financial holding company headquartered in Moultrie, Georgia, and whose primary business is presently conducted by Ameris Bank, its wholly owned banking subsidiary (the “Bank”). Through the Bank, the Company operates a full service banking business and offers a broad range of retail and commercial banking services to its customers concentrated in select markets in Georgia, Alabama, Florida and South Carolina. The Bank also engages in mortgage banking activities and SBA lending, and, as such, originates, acquires, sells and services one-to-four family residential mortgage loans and SBA loans in the Southeast. The Bank has purchased residential mortgage loan pools collateralized by properties located outside our Southeast markets, specifically in California, Washington and Illinois. The Bank purchases consumer installment home improvement loans made to borrowers throughout the United States. The Bank also originates, administers and services commercial insurance premium loans made to borrowers throughout the United States. The Company and the Bank are subject to the regulations of certain federal and state agencies and are periodically examined by those regulatory agencies.
Basis of Presentation and Accounting Estimates	Basis of Presentation and Accounting Estimates The consolidated financial statements include the accounts of the Company and its subsidiaries. Significant intercompany transactions and balances have been eliminated in consolidation. In preparing the consolidated financial statements in conformity with accounting principles generally accepted in the United States of America, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the balance sheet and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.
Acquisition Accounting	Acquisition Accounting Acquisitions are accounted for under the acquisition method of accounting. Purchased assets and assumed liabilities are recorded at their estimated fair values as of the purchase date. Any identifiable intangible assets are also recorded at fair value. When the consideration given is less than the fair value of the net assets received, the acquisition results in a “bargain purchase gain.” If the consideration given exceeds the fair value of the net assets received, goodwill is recognized. Fair values are subject to refinement for up to one year after the closing date of an acquisition as additional information regarding the closing date fair values becomes available. All identifiable intangible assets that are acquired in a business combination are recognized at fair value on the acquisition date. Identifiable intangible assets are recognized separately if they arise from contractual or other legal rights or if they are separable (i.e., capable of being sold, transferred, licensed, rented, or exchanged separately from the entity). Purchased loans acquired in a business combination are recorded at estimated fair value on their purchase date and carryover of the seller's related allowance for loan losses is prohibited. When the loans have evidence of credit deterioration since origination and it is probable at the date of acquisition that the Company will not collect all contractually required principal and interest payments, the difference between contractually required payments at acquisition and the cash flows expected to be collected at acquisition is referred to as the non-accretable difference. The Company must estimate expected cash flows at each reporting date. Subsequent decreases to the expected cash flows will generally result in a provision for loan losses. Subsequent increases in expected cash flows result in a reversal of the provision for loan losses to the extent of prior provisions and adjust accretable discount if no prior provisions have been made or have been fully reversed. This increase in accretable discount will have a positive impact on future interest income.
Transfer of financial assets	Transfer of financial assets Transfers of financial assets are accounted for as sales, when control over the assets has been relinquished. Control over transferred assets is deemed to be surrendered when the assets have been isolated from the Company, the transferee obtains the right (free of conditions that constrain it from taking advantage of that right) to pledge or exchange the transferred assets, and the Company does not maintain effective control over the transferred assets through an agreement to repurchase them before their maturity.
Cash and Cash Equivalents	Cash and Cash Equivalents For purposes of reporting cash flows, cash and cash equivalents include cash on hand, cash items in process of collection, amounts due from banks, interest-bearing deposits in banks and federal funds sold. Net cash flows are reported for customer loan and deposit transactions, securities sold under agreements to repurchase and federal funds purchased. The Bank is required to maintain reserve balances in cash or on deposit with the Federal Reserve Bank.
Investment Securities	Investment Securities The Company classifies its investment securities in one of three categories: (i) trading, (ii) held to maturity or (iii) available for sale. Trading securities are bought and held principally for the purpose of selling them in the near term. Held to maturity securities are those securities for which the Company has the ability and intent to hold until maturity. All other investment securities are classified as available for sale. At December 31, 2018 and 2017, all securities were classified as available for sale. Trading securities are carried at fair value. Unrealized gains and losses on trading securities are recorded in earnings as a component of other noninterest income. Held to maturity securities are recorded initially at cost and subsequently adjusted for paydowns and amortization of purchase premium or accretion of purchase discount. Available for sale securities are carried at fair value. Unrealized holding gains and losses, net of the related deferred tax effect, on available for sale securities are excluded from earnings and are reported in other comprehensive income as a separate component of shareholders’ equity until realized. Transfers of securities between categories are recorded at fair value at the date of transfer. Unrealized holding gains or losses associated with transfers of securities from held to maturity to available for sale are recorded as a separate component of shareholders’ equity. These unrealized holding gains or losses are amortized into income over the remaining life of the security as an adjustment to the yield in a manner consistent with the amortization or accretion of the original purchase premium or discount on the associated security. The amortization of premiums and accretion of discounts are recognized in interest income using methods approximating the interest method over the expected life of the securities. Realized gains and losses, determined on the basis of the cost of specific securities sold, are included in earnings on the trade date. A decline in the market value of any available for sale or held to maturity investment below cost that is deemed other than temporary establishes a new cost basis for the security. Other than temporary impairment deemed to be credit related is charged to earnings. Other than temporary impairment attributed to non-credit related factors is recognized in other comprehensive income. In determining whether other-than-temporary impairment losses exist, management considers (i) the length of time and the extent to which the fair value has been less than cost, (ii) the financial condition and near-term prospects of the issuer or underlying collateral of the security and (iii) the Company’s intent and ability of the Company to retain its investment in the issuer for a period of time sufficient to allow for any anticipated recovery in fair value.
Other Investments	Other Investments Other investments include Federal Home Loan Bank (“FHLB”) stock and Federal Reserve Bank stock. Prior to the Company's completion of its acquisition of USPF on January 31, 2018, the minority equity investment in USPF was also included in other investments. These investments do not have readily determinable fair values due to restrictions placed on transferability and therefore are carried at cost. These investments are periodically evaluated for impairment based on ultimate recovery of par value or cost basis. Both cash and stock dividends are reported as income.
Loans Held-for-Sale	Loans Held for Sale Loans held for sale are carried at the estimated fair value, as determined by outstanding commitments from third party investors in the secondary market. Adjustments to reflect unrealized gains and losses resulting from changes in fair value of mortgage loans held for sale and realized gains and losses upon ultimate sale of the mortgage loans held for sale are classified as mortgage banking activity in the consolidated statements of income. Adjustments to reflect unrealized gains and losses resulting from changes in fair value of SBA loans held for sale and realized gains and losses upon ultimate sale of the SBA loans held for sale are classified as gain on sale of SBA loans in the consolidated statements of income.
Servicing Rights	Servicing Rights When mortgage and SBA loans are sold with servicing retained, servicing rights are initially recorded at fair value with the income statement effect recorded in mortgage banking activity or gains on sales of SBA loans accordingly. Fair value is based on market prices for comparable servicing contracts, when available or alternatively, is based on a valuation model that calculates the present value of estimated future net servicing income. All classes of servicing assets are subsequently measured using the amortization method which requires servicing rights to be amortized into non-interest income in proportion to, and over the period of, the estimated future net servicing income of the underlying loans. Servicing fee income, which is reported on the income statement as other noninterest income, is recorded for fees earned for servicing loans. The fees are based on a contractual percentage of the outstanding principal or a fixed amount per loan and are recorded as income when earned. The amortization of servicing rights is netted against loan servicing fee income. Servicing fees totaled $4,492,000, $1,687,000 and $1,708,000 for the years ended December 31, 2018, 2017 and 2016, respectively. Late fees and ancillary fees related to loan servicing are not material. Servicing rights are evaluated for impairment based upon the fair value of the rights as compared to carrying amount. Impairment is determined by stratifying rights into strata based on predominant risk characteristics, such as interest rate, loan type and investor type. Impairment is recognized for a particular stratum through a valuation allowance, to the extent that fair value is less than the carrying amount. If the Company later determines that all or a portion of the impairment no longer exists for a particular stratum, a reduction of the valuation allowance may be recorded as an increase to income. Changes in valuation allowances related to servicing rights are reported in other noninterest income on the income statement. The fair values of servicing rights are subject to significant fluctuations as a result of changes in estimated and actual prepayment speeds and default rates and losses.
Loans	Loans Loans, excluding purchased loans and residential mortgage purchased loan pools (“purchased loan pools”) are reported at their outstanding principal balances less unearned income, net of deferred fees and origination costs. Interest income is accrued on the outstanding principal balance. For all classes of loans, the accrual of interest on loans is discontinued when, in management’s opinion, the borrower may be unable to make payments as they become due, unless the loan is well secured and in the process of collection. Interest income on mortgage and commercial loans is discontinued and placed on non-accrual status at the time the loan is 90 days delinquent unless the loan is well secured and in process of collection. Mortgage loans and commercial loans are charged off to the extent principal or interest is deemed uncollectible. Consumer loans continue to accrue interest until they are charged off, generally between 90 and 120 days past due, unless the loan is in the process of collection. Non-accrual loans and loans past due 90 days still on accrual include both smaller balance homogeneous loans that are collectively evaluated for impairment and individually classified impaired loans. All interest accrued, but not collected for loans that are placed on nonaccrual or charged off, is reversed against interest income. Interest income on nonaccrual loans is applied against principal until the loans are returned to accrual status. Loans are returned to accrual status when all the principal and interest amounts contractually due are brought current and future payments are reasonably assured.
Purchased Loans	Purchased Loans Purchased loans include loans acquired in FDIC-assisted acquisitions (“covered loans”) and other acquisitions (“purchased non-covered loans”) and are initially recorded at fair value on the date of the purchase. Purchased loans that contain evidence of credit deterioration (“purchased credit impaired loans”) on the date of purchase are carried at the net present value of expected future proceeds. All other purchased loans are recorded at their initial fair value, adjusted for subsequent advances, pay downs, amortization or accretion of any premium or discount on purchase, charge-offs and any other adjustment to carrying value. There is no carryover of the seller’s allowance for loan losses. After acquisition, losses are recognized by recording a charge-off of the loss and a corresponding provision expense. In determining the initial fair value of purchased loans without evidence of credit deterioration at the date of acquisition, management includes (i) no carryover of the seller's allowance for loan losses and (ii) an adjustment of the recorded investment to reflect an appropriate market rate of interest, given the remaining term, risk profile and grade assigned to each loan. This adjustment is accreted into earnings as a yield adjustment, using methods approximating the effective yield method, over the remaining life of each loan. Purchased credit impaired loans are accounted for individually. The Company estimates the amount and timing of expected cash flows for each loan, and the expected cash flows in excess of the amount paid is recorded as interest income over the remaining life of the loan (accretable yield). The excess of the loan’s contractual principal and interest over expected cash flows is not recorded (nonaccretable difference). Over the life of the loan, expected cash flows continue to be estimated. If the present value of expected cash flows is less than the carrying amount, an impairment loss is recorded as a provision for loan losses. If the present value of expected cash flows is greater than the carrying amount, it is recognized as part of future interest income through an increase in accretable yield.
Purchased loan pools	Purchased Loan Pools Purchased loan pools include groups of residential mortgage loans that were not acquired in bank acquisitions or FDIC-assisted transactions. Purchased loan pools are reported at their outstanding principal balances plus purchase premiums, net of accumulated amortization. Interest income is accrued on the outstanding principal balance. The accrual of interest on loans is discontinued when, in management’s opinion, the borrower may be unable to make payments as they become due, unless the loan is well secured and in the process of collection.
Allowance for Loan Losses	Allowance for Loan Losses The allowance for loan losses is established through a provision for loan losses charged to expense. Loan losses are charged against the allowance when management believes the collection of a loan’s principal is unlikely. Subsequent recoveries are credited to the allowance. The allowance is an amount that management believes will be adequate to absorb estimated losses relating to specifically identified loans, as well as probable incurred losses in the balance of the loan portfolio. The allowance for loan losses is evaluated on a regular basis by management and is based upon management’s periodic review of various risks in the loan portfolio highlighted by historical experience, the nature and volume of the loan portfolio, overall portfolio quality, review of specific problem loans, current economic conditions that may affect the borrower’s ability to pay, estimated value of any underlying collateral and prevailing economic conditions. This evaluation is inherently subjective as it requires estimates that are susceptible to significant revision as more information becomes available. The allowance for loan losses evaluation does not include the effects of expected losses on specific loans or groups of loans that are related to future events or expected changes in economic conditions. While management uses the best information available to make its evaluation, future adjustments to the allowance may be necessary if there are significant changes in economic conditions. In addition, regulatory agencies, as an integral part of their examination process, periodically review the Bank’s allowance for loan losses and may require the Bank to make additions to the allowance based on their judgment about information available to them at the time of their examinations. The allowance consists of specific and general components. The specific component includes loans management considers impaired and other loans or groups of loans that management has classified with higher risk characteristics. For such loans that are classified as impaired, an allowance is established when the discounted cash flows, collateral value or observable market price of the impaired loan is lower than the carrying value of that loan. The general component covers non-classified loans and is based on historical loss experience adjusted for qualitative factors. The allowance for loan losses represents a reserve for probable incurred losses in the loan portfolio. The adequacy of the allowance for loan losses is evaluated periodically based on a review of all significant loans, with a particular emphasis on non-accruing, past due and other loans that management believes might be potentially impaired or warrant additional attention. The Company segregates the loan portfolio by type of loan and utilizes this segregation in evaluating exposure to risks within the portfolio. In addition, based on internal reviews and external reviews performed by independent loan reviewers and regulatory authorities, the Company further segregates the loan portfolio by loan grades based on an assessment of risk for a particular loan or group of loans. In establishing allowances, management considers historical loan loss experience but adjusts this data with a significant emphasis on data such as risk ratings, current loan quality trends, current economic conditions and other factors in the markets where the Company operates. Factors considered include, among others, current valuations of real estate in their markets, unemployment rates, the effect of weather conditions on agricultural related entities and other significant local economic events. The Company has developed a methodology for determining the adequacy of the allowance for loan losses which is monitored by the Company’s Chief Credit Officer. Procedures provide for the assignment of a risk rating for every loan included in the total loan portfolio. Commercial insurance premium loans, overdraft protection loans and certain mortgage loans and consumer loans serviced by outside processors are treated as pools for risk rating purposes. The risk rating schedule provides nine ratings of which five ratings are classified as pass ratings and four ratings are classified as criticized ratings. Each risk rating is assigned a percentage factor of historical losses, calculated by loan type, and adjusted for qualitative factors to be applied to the balance of loans by risk rating and loan type, to determine the adequate amount of reserve. Many of the larger loans require an annual review by an independent loan officer in the Company’s internal loan review department. Assigned risk ratings are adjusted based on various factors including changes in borrower’s financial condition, the number of days past due and general economic conditions. The calculation of the allowance for loan losses, including underlying data and assumptions, is reviewed quarterly by the independent internal loan review department. Loan losses are charged against the allowance when management believes the collection of a loan’s principal is unlikely. Subsequent recoveries are credited to the allowance. Consumer loans are charged-off in accordance with the Federal Financial Institutions Examination Council’s (“FFIEC”) Uniform Retail Credit Classification and Account Management Policy. Commercial loans are charged-off when they are deemed uncollectible, which usually involves a triggering event within the collection effort. If the loan is collateral dependent, the loss is more easily identified and is charged-off when it is identified, usually based upon receipt of an appraisal. However, when a loan has guarantor support, and the guarantor demonstrates willingness and capacity to support the debt, the Company may carry the estimated loss as a reserve against the loan while collection efforts with the guarantor are pursued. If, after collection efforts with the guarantor are complete, the deficiency is still considered uncollectible, the loss is charged-off and any further collections are treated as recoveries. In all situations, when a loan is downgraded to a loan risk rating of 9 (Loss per the regulatory guidance), the uncollectible portion is charged-off.
Loan Commitments and Financial Instruments	Loan Commitments and Financial Instruments Financial instruments include off-balance sheet credit instruments, such as commitments to make loans and standby letters of credit, issued to meet customer financing needs. The face amount for these items represents the exposure to loss, before considering customer collateral or ability to repay. Such financial instruments are recorded when they are funded.
Premises and Equipment	Premises and Equipment Land is carried at cost. Other premises and equipment are carried at cost, less accumulated depreciation computed on the straight-line method over the estimated useful lives of the assets. In general, estimated lives for buildings are up to 40 years, furniture and equipment useful lives range from three to 20 years and the lives of software and computer related equipment range from three to five years. Leasehold improvements are amortized over the life of the related lease, or the related assets, whichever is shorter. Expenditures for major improvements of the Company’s premises and equipment are capitalized and depreciated over their estimated useful lives. Minor repairs, maintenance and improvements are charged to operations as incurred. When assets are sold or disposed of, their cost and related accumulated depreciation are removed from the accounts and any gain or loss is reflected in earnings.
FDIC Loss-Share Receivable/Payable	FDIC Loss-Share Receivable/Payable In connection with the Company’s FDIC-assisted acquisitions, the Company has recorded an FDIC loss-share receivable to reflect the indemnification provided by the FDIC. Since the indemnified items are covered loans and covered foreclosed assets, which are initially measured at fair value, the FDIC loss-share receivable is also initially measured and recorded at fair value, and is calculated by discounting the cash flows expected to be received from the FDIC. These cash flows are estimated by multiplying estimated losses by the reimbursement rates as set forth in the loss-sharing agreements. The balance of the FDIC loss-share receivable and the accretion (or amortization) thereof is adjusted periodically to reflect changes in expectations of discounted cash flows, expense reimbursements under the loss-sharing agreements and other factors. The Company is accreting (or amortizing) its FDIC loss-share receivable over the shorter of the contractual term of the indemnification agreement (ten years for the single family loss-sharing agreements, and five years for the non-single family loss-sharing agreements) or the remaining life of the indemnified asset. Pursuant to the clawback provisions of the loss-sharing agreements for the Company’s FDIC-assisted acquisitions, the Company may be required to reimburse the FDIC should actual losses be less than certain thresholds established in each loss-sharing agreement. The amount of the clawback provision for each acquisition is measured and recorded at fair value. It is calculated as the difference between management’s estimated losses on covered loans and covered foreclosed assets and the loss threshold contained in each loss-sharing agreement, multiplied by the applicable clawback provisions contained in each loss-sharing agreement. This clawback amount, which is payable to the FDIC upon termination of the applicable loss-sharing agreement, is then discounted back to net present value. To the extent that actual losses on covered loans and covered foreclosed assets are less than estimated losses, the applicable clawback payable to the FDIC upon termination of the loss-sharing agreements will increase. To the extent that actual losses on covered loans and covered foreclosed assets are more than estimated losses, the applicable clawback payable to the FDIC upon termination of the loss-sharing agreements will decrease. The balance of the FDIC clawback payable and the amortization thereof are adjusted periodically to reflect changes in expected losses on covered assets and the impact of such changes on the clawback payable and other factors.
Goodwill and Intangible Assets	Goodwill and Intangible Assets Goodwill represents the excess of cost over the fair value of the net assets purchased in business combinations. Goodwill is required to be tested annually for impairment or whenever events occur that may indicate that the recoverability of the carrying amount is not probable. In the event of an impairment, the amount by which the carrying amount exceeds the fair value is charged to earnings. The Company performs its annual impairment testing of goodwill in the fourth quarter of each year. Intangible assets include core deposit premiums from various past bank acquisitions as well as intangible assets recorded in connection with the USPF acquisition for insurance agent relationships, the "US Premium Finance" trade name and a non-compete agreement. Core deposit premiums acquired in various past bank acquisitions are based on the established value of acquired customer deposits. The core deposit premium is initially recognized based on a valuation performed as of the acquisition date and is amortized over an estimated useful life of seven to ten years. The insurance agent relationships, the "US Premium Finance" trade name and non-compete agreement intangible assets acquired in the USPF acquisition are based on the established values as of the acquisition date and are being amortized over estimated useful lives of eight years, seven years and three years, respectively. Amortization periods for intangible assets are reviewed annually in connection with the annual impairment testing of goodwill.
Cash Value of Bank Owned Life Insurance	Cash Value of Bank Owned Life Insurance The Company has purchased life insurance policies on certain officers. The life insurance is recorded at the amount that can be realized under the insurance contract at the balance sheet date, which is the cash surrender value adjusted for other charges or other amounts due that are probable at settlement.
Other Real Estate Owned	Other Real Estate Owned Foreclosed assets acquired through or in lieu of loan foreclosure are held for sale and are initially recorded at fair value less estimated cost to sell. Any write-down to fair value at the time of transfer to foreclosed assets is charged to the allowance for loan losses. Subsequent to foreclosure, valuations are periodically performed by management and the assets are carried at the lower of carrying amount or fair value less cost to sell. Costs of improvements are capitalized up to the fair value of the property, whereas costs relating to holding foreclosed assets and subsequent adjustments to the value are charged to operations.
Income Taxes	Income Taxes Deferred income tax assets and liabilities are determined using the liability method. Under this method, the net deferred tax asset or liability is determined based on the tax effects of the temporary differences between the book and tax bases of the various balance sheet assets and liabilities and gives current recognition to changes in tax rates and laws. In the event the future tax consequences of differences between the financial reporting bases and the tax bases of the assets and liabilities results in deferred tax assets, an evaluation of the probability of being able to realize the future benefits indicated by such assets is required. A valuation allowance is provided for the portion of the deferred tax asset when it is more likely than not that some portion or all of the deferred tax asset will not be realized. In assessing the realizability of the deferred tax assets, management considers the scheduled reversals of deferred tax liabilities, projected future taxable income and tax planning strategies. The Company currently evaluates income tax positions judged to be uncertain. A loss contingency reserve is accrued if it is probable that the tax position will be challenged with a tax examination being presumed to occur, it is probable that the future resolution of the challenge will confirm that a loss has been incurred, and the amount of such loss can be reasonably estimated. The Company recognizes interest and penalties related to income tax matters in other noninterest expenses.
Loss Contingencies	Loss Contingencies Loss contingencies, including claims and legal actions arising in the ordinary course of business, are recorded as liabilities when the likelihood of loss is probable and an amount or range of loss can be reasonably estimated.
Share-Based Compensation	Share-Based Compensation The Company accounts for its stock compensation plans using a fair value based method whereby compensation cost is measured at the grant date based on the value of the award and is recognized over the service period, which is usually the vesting period.
Treasury Stock	Treasury Stock The Company’s repurchases of shares of its common stock are recorded at cost as treasury stock and result in a reduction of shareholders' equity.
Earnings Per Share	Earnings Per Share Basic earnings per share are computed by dividing net income allocated to common shareholders by the weighted-average number of shares of common stock outstanding during the period. Diluted earnings per common share are computed by dividing net income allocated to common shareholders by the sum of the weighted-average number of shares of common stock outstanding and the effect of the issuance of potential common shares that are dilutive. Potential common shares consist of stock options and restricted shares for the years ended December 31, 2018, 2017 and 2016, and are determined using the treasury stock method. The Company has determined that its outstanding non-vested stock awards are participating securities, and all dividends on these awards are paid similar to other dividends.
Derivative Instruments and Hedging Activities	Derivative Instruments and Hedging Activities The goal of the Company’s interest rate risk management process is to minimize the volatility in the net interest margin caused by changes in interest rates. Derivative instruments are used to hedge certain assets or liabilities as a part of this process. The Company is required to recognize certain contracts and commitments as derivatives when the characteristics of those contracts and commitments meet the definition of a derivative. All derivative instruments are required to be carried at fair value on the balance sheet. The Company’s hedging strategies include utilizing an interest rate swap classified as a cash flow hedge. Cash flow hedges relate to converting the variability in future interest payments on a floating rate liability to fixed payments. When effective, the fair value of cash flow hedges is carried as a component of other comprehensive income rather than an income statement item. The Company had a cash flow hedge with notional amount of $37.1 million at December 31, 2018 and 2017 for the purpose of converting the variable rate on certain junior subordinated debentures to a fixed rate. The fair value of this instrument amounted to an asset of $102,000 as of December 31, 2018 and a liability of $381,000 as of December 31, 2017. No material hedge ineffectiveness from cash flow hedges was recognized in the statement of income. All components of each derivative’s gain or loss are included in the assessment of hedge effectiveness.
Mortgage Banking Derivatives	Mortgage Banking Derivatives The Company maintains a risk management program to manage interest rate risk and pricing risk associated with its mortgage lending activities. Commitments to fund mortgage loans (interest rate locks) to be sold into the secondary market and forward commitments for the future delivery of these mortgage loans are accounted for as free standing derivatives. The fair value of the interest rate lock is recorded at the time the commitment to fund the mortgage loan is executed and is adjusted for the expected exercise of the commitment before the loan is funded. In order to hedge the change in interest rates resulting from its commitments to fund the loans, the Company enters into forward commitments for the future delivery of mortgage loans when interest rate locks are entered into. Fair values of these mortgage derivatives are estimated based on changes in mortgage interest rates from the date the interest on the loan is locked. Changes in the fair values of these derivatives are included in mortgage banking activity in the Company's consolidated statement of income.
Comprehensive Income	Comprehensive Income The Company’s comprehensive income consists of net income, changes in the net unrealized holding gains and losses of securities available for sale, unrealized gain or loss on the effective portion of cash flow hedges and the realized gain or loss recognized due to the sale or unwind of cash flow hedges prior to their contractual maturity date. These amounts are carried in accumulated other comprehensive income (loss) on the consolidated statements of comprehensive income and are presented net of taxes.
Fair Value Measures	Fair Value Measures Fair values of assets and liabilities are estimated using relevant market information and other assumptions, as more fully disclosed in a separate note. Fair value estimates involve uncertainties and matters of significant judgment regarding interest rates, credit risk, prepayments, and other factors, especially in the absence of broad markets for particular items. Changes in assumptions or in market conditions could significantly affect these estimates.
Operating Segments	Operating Segments The Company has five reportable segments, the Banking Division, the Retail Mortgage Division, the Warehouse Lending Division, the SBA Division and the Premium Finance Division. The Banking Division derives its revenues from the delivery of full service financial services to include commercial loans, consumer loans and deposit accounts. The Retail Mortgage Division derives its revenues from the origination, sales and servicing of one-to-four family residential mortgage loans. The Warehouse Lending Division derives its revenues from the origination and servicing of warehouse lines to other businesses that are secured by underlying one-to-four family residential mortgage loans and residential mortgage servicing rights. The SBA Division derives its revenues from the origination, sales and servicing of SBA loans. The Premium Finance Division derives its revenues from the origination and servicing of commercial insurance premium finance loans. The Banking, Retail Mortgage, Warehouse Lending, SBA and Premium Finance Divisions are managed as separate business units because of the different products and services they provide. The Company evaluates performance and allocates resources based on profit or loss from operations. There are no material intersegment sales or transfers.
Accounting Standards Adopted in 2018 and Pending Adoption	Accounting Standards Adopted in 2018 ASU 2018-02 - Income Statement-Reporting Comprehensive Income (Topic 220): Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income ("ASU 2018-02"). Issued in February 2018, ASU 2018-02 seeks to help entities reclassify certain stranded income tax effects in accumulated other comprehensive income resulting from the Tax Cuts and Jobs Act of 2017 (the "Tax Reform Act"), enacted on December 22, 2017. ASU 2018-02 was issued in response to concerns regarding current accounting guidance that requires deferred tax assets and deferred tax liabilities to be adjusted for the effect of a change in tax laws or rates with the effect included in income from continuing operations in the reporting period that includes the enactment date, even in situations in which the related income tax effects of items in accumulated other comprehensive income were originally recognized in other comprehensive income, rather than net income, and as a result the stranded tax effects would not reflect the appropriate tax rate. The amendments of ASU 2018-02 allow an entity to make a reclassification from accumulated other comprehensive income to retained earnings for the stranded tax effects, which is the difference between the historical corporate income tax rate of 35.0% and the newly enacted corporate income tax rate of 21.0%. ASU 2018-02 is effective for fiscal years, and interim periods within those years, beginning after December 31, 2018; however, public business entities are allowed to early adopt the amendments of ASU 2018-02 in any interim period for which the financial statements have not yet been issued. The amendments of ASU 2018-02 may be applied either at the beginning of the period (annual or interim) of adoption or retrospectively to each of the period(s) in which the effect of the change in the U.S. federal corporate tax rate in the Tax Reform Act is recognized. As a result of the remeasurement of the Company's deferred tax assets and deferred tax liabilities following the enactment of the Tax Reform Act, accumulated other comprehensive loss included $392,000 of stranded tax effects at December 31, 2017. The Company early adopted ASU 2018-02 during the first quarter of 2018 and made an election to reclassify the stranded tax effects from accumulated other comprehensive loss to retained earnings at the beginning of the period of adoption. The reclassification of the stranded tax effects resulted in an increase of $392,000 in accumulated other comprehensive loss and a corresponding increase of $392,000 in retained earnings. ASU 2017-12 – Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging Activities ("ASU 2017-12"). The purposes of ASU 2017-12 are to (1) improve the transparency and understandability of information conveyed in financial statements about an entity’s risk management activities by better aligning the entity’s financial reporting for hedging relationships with the economic objectives of those risk management activities and (2) reduce the complexity of and simplify the application of hedge accounting by preparers. ASU 2017-12 is effective for interim and annual reporting periods beginning after December 15, 2018 with early adoption in an interim period permitted. ASU 2017-12 requires a modified retrospective transition method in which the Company will recognize the cumulative effect of the change on the opening balance of each affected component of equity in the statement of financial position as of the beginning of the fiscal year of adoption. During the first quarter of 2018, the Company early adopted the provisions of ASU 2017-12, and the adoption did not have a material impact on the Company's consolidated financial statements. ASU 2017-09 – Compensation – Stock Compensation (Topic 718): Scope of Modification Accounting (“ASU 2017-09”). ASU 2017-09 clarifies when changes to the terms of a share-based award must be accounted for as a modification. Companies must apply the modification accounting guidance if any of the following change: the share-based award’s fair value, vesting provisions or classification as an equity instrument or a liability instrument. The new guidance should reduce diversity in practice and result in fewer changes to the terms of share-based awards being accounted for as modifications, as the guidance will allow companies to make certain non-substantive changes to share-based awards without accounting for them as modifications. ASU 2017-09 is effective for interim and annual reporting periods beginning after December 15, 2017 with early adoption permitted. During the first quarter of 2018, the Company adopted the provisions of ASU 2017-09, and the adoption did not have a material impact on the Company's consolidated financial statements. ASU 2017-01 – Business Combinations (Topic 805): Clarifying the Definition of a Business (“ASU 2017-01”). ASU 2017-01 provides a framework to use in determining when a set of assets and activities is a business. The standard provides more consistency in applying the business combination guidance, reduces the costs of application, and makes the definition of a business more operable. ASU 2017-01 is effective for interim and annual periods within those annual periods beginning after December 15, 2017. During the first quarter of 2018, the Company adopted the provisions of ASU 2017-01, and the adoption did not have a material impact on the Company's consolidated financial statements. ASU 2016-01 – Financial Instruments - Recognition and Measurement of Financial Assets and Financial Liabilities ("ASU 2016-01"). ASU 2016-01 (1) requires equity investments that do not result in consolidation and are not accounted for under the equity method to be measured at fair value with changes recognized through net income; (2) simplifies the impairment assessment of equity investments without readily determinable fair values by allowing a qualitative assessment similar to those performed on long-lived assets, goodwill or intangibles to be utilized at each reporting period; (3) eliminates the use of the entry price method requiring all preparers to utilize the exit price notion consistent with Topic 820, Fair Value Measurement in disclosing the fair value of financial instruments measured at amortized cost; (4) requires separate disclosure within other comprehensive income of changes in the fair value of liabilities due to instrument-specific credit risk when the fair value option has been elected; and (5) requires separate presentation of financial assets and financial liabilities by measurement category and form of financial asset on the balance sheet or in the accompanying notes to the financial statements. ASU 2016-01 is effective for annual reporting periods beginning after December 15, 2017, and interim periods. During the first quarter of 2018, the Company adopted ASU 2016-01. Other than changing from the entry price method to an exit price notion in disclosing fair value of financial instruments at amortized cost, the adoption did not have a material impact on the Company's consolidated financial statements. ASU 2014-09 – Revenue from Contracts with Customers (“ASU 2014-09”). On January 1, 2018, the Company adopted ASU 2014-09 and all subsequent amendments to the ASU (collectively "ASC 606") which (1) creates a single framework for recognizing revenue from contracts with customers that fall within its scope and (2) revises when it is appropriate to recognize a gain (loss) from the transfer of nonfinancial assets, such as other real estate owned ("OREO"). The majority of the Company's revenues come from interest income and other sources, including loans, leases, investment securities and derivative financial instruments, that are outside the scope of ASC 606. With the exception of gains/losses on the sale of OREO, the Company's services that fall within the scope of ASC 606 are presented within noninterest income and are recognized as revenue as the Company satisfies its obligations to the customer. Services within the scope of ASC 606 reported in noninterest income include service charges on deposit accounts, debit card interchange fees, and ATM fees. The net of gains and losses on the sale of OREO are recorded in credit resolution related expenses in the Company's consolidated statement of income and comprehensive income. The adoption of ASC 606 did not change the timing or amount of revenue recognized for in-scope revenue streams. Accordingly, no cumulative effect adjustment was recorded under the modified retrospective transition method. See Note 15 for further discussion on the Company's accounting policies for revenue sources within the scope of ASC 606. Accounting Standards Pending Adoption ASU 2018-15 – Intangibles – Goodwill and Other – Internal-Use Software (Subtopic 350-40): Customer's Accounting for Implementation Costs incurred in a Cloud Computing Arrangement That Is a Service Contract ("ASU 2018-15"). ASU 2018-15 requires that application development stage implementation costs incurred in a Cloud Computing Arrangement ("CCA") that are service contracts be capitalized and amortized over the term of the hosting arrangement including renewal option terms if the customer entity is reasonably certain to exercise the option. Costs incurred in the preliminary project and post-implementation stages are expensed as incurred. Training costs and certain data conversion costs also cannot be capitalized for a CCA that is a service contract. Amortization expense of capitalized implementation costs will be presented in the same income statement caption as the CCA fees. Similarly, capitalized implementation costs will be presented in the same balance sheet caption as any prepaid CCA fees and cash flows from capitalized implementation costs will be classified in the statement of cash flows in the same manner as payments made for the CCA fees. The requirements of ASU 2018-15 should be applied either retrospectively or prospectively to all implementation costs incurred after the adoption date. ASU 2018-15 is effective for interim and annual periods beginning after December 15, 2019. Early adoption is permitted. The Company is currently evaluating the impact this ASU will have on the Company’s consolidated balance sheet, consolidated statement of income and comprehensive income, consolidated statement of shareholders’ equity and consolidated statement of cash flows, but it is not expected to have a material impact. ASU 2018-13 – Fair Value Measurement (Topic 820): Disclosure Framework – Changes to the Disclosure Requirements for Fair Value Measurement ("ASU 2018-13). ASU 2018-13 changes fair value measurement disclosure requirements by removing certain requirements, modifying certain requirements and adding certain new requirements. Disclosure requirements removed include the following: transfers between Level 1 and Level 2 of the fair value hierarchy; the policy for determining when transfers between any of the three levels have occurred; the valuation processes for Level 3 measurements; and the changes in unrealized gains or losses presented in earnings for Level 3 instruments held at end of the reporting period. Disclosure requirements that have been modified include the following: for investments in certain entities that calculate net asset value, an entity is required to disclose the timing of liquidation of an investee's assets and the date when restrictions from redemption might lapse only if the investee has communicated the timing to the entity or announced the timing publicly; and clarification that the Level 3 measurement uncertainty disclosure should communicate information about the uncertainty at the balance sheet date. New disclosure requirements include the following: the changes in unrealized gains and losses for the period included in other comprehensive income for recurring Level 3 instruments held at the end of the reporting period; and the range and weighted average of significant unobservable inputs used for Level 3 measurements or disclosure of other quantitative information in place of the weighted average to the extent that it would be a more reasonable and rational method to reflect the distribution of unobservable inputs. ASU 2018-13 is effective for interim and annual periods beginning after December 15, 2019. Early adoption is permitted. The Company is currently evaluating the impact this standard will have on the Company’s fair value measurement disclosures, but it is not expected to have a material impact. ASU 2017-04 – Intangibles: Goodwill and Other: Simplifying the Test for Goodwill Impairment (“ASU 2017-04”). ASU 2017-04 eliminates Step 2 from the goodwill impairment test to simplify the subsequent measurement of goodwill. The annual, or interim, goodwill impairment test is performed by comparing the fair value of a reporting unit with its carrying amount. An impairment charge should be recognized for the amount by which the carrying amount exceeds the reporting unit’s fair value; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. In addition, the income tax effects of tax deductible goodwill on the carrying amount of the reporting unit should be considered when measuring the goodwill impairment loss, if applicable. ASU 2017-04 also eliminates the requirements for any reporting unit with a zero or negative carrying amount to perform Step 2 of the goodwill impairment test. An entity still has the option to perform the qualitative assessment for a reporting unit to determine if the quantitative impairment test is necessary. The standard must be adopted using a prospective basis and the nature and reason for the change in accounting principle should be disclosed upon transition. ASU 2017-04 is effective for annual or any interim goodwill impairment tests in reporting periods beginning after December 15, 2019. Early adoption is permitted on testing dates after January 1, 2017. The Company is currently evaluating the impact this ASU will have on the Company’s results of operations, financial position and disclosures, but it is not expected to have a material impact. ASU 2016-13 – Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments (“ASU 2016-13”). ASU 2016-13 significantly changes how entities will measure credit losses for most financial assets and certain other instruments that are not measured at fair value through net income. The standard will replace the current incurred loss approach with an expected loss model, referred to as the current expected credit loss (“CECL”) model. The new standard will apply 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. ASU 2016-13 simplifies the accounting for purchased credit-impaired debt securities and loans and expands the disclosure requirements regarding an entity’s assumptions, models and methods for estimating the allowance for loan and lease losses. In addition, entities will need to disclose the amortized cost balance for each class of financial asset by credit quality indicator, disaggregated by the year of origination. ASU 2016-13 is effective for interim and annual reporting periods beginning after December 15, 2019. Early adoption is permitted for interim and annual reporting periods beginning after December 15, 2018. Upon adoption, ASU 2016-13 provides for a modified retrospective transition by means of a cumulative effect adjustment to equity as of the beginning of the period in which the guidance is effective. While the Company is currently evaluating the impact this ASU will have on the results of operations, financial position and disclosures, the Company expects to recognize a one-time cumulative effect adjustment to equity and the allowance for loan losses as of the beginning of the first reporting period in which the new standard is effective. The Company has established a steering committee which includes the appropriate members of management to evaluate the impact this ASU will have on Company’s financial position, results of operations and financial statement disclosures and determine the most appropriate method of implementing the amendments in this ASU as well as any resources needed to implement the amendments. This committee has contracted with the software vendor of choice for implementation, established an implementation time-line, conducts regular meetings to monitor the project's status, and continues to stay current on implementation issues and concerns. During the third quarter of 2018, work began with the software vendor to source and test required data feeds. During the fourth quarter of 2018, work with the software vendor continued with sourcing of required data from the Company's loan systems and testing of data feeds. Additionally, the committee has engaged consulting services from a leading international accounting professional services firm to assist management with the technical accounting, internal control, and project management aspects of the Company's CECL implementation. ASU 2016-02 – Leases (Topic 842) (“ASU 2016-02”). ASU 2016-02 amends the existing standards for lease accounting effectively requiring most leases be carried on the balance sheets of the related lessees by requiring them to recognize a right-of-use asset and a corresponding lease liability. ASU 2016-02 includes qualitative and quantitative disclosure requirements intended to provide greater insight into the nature of an entity’s leasing activities. The standard may be adopted using a modified retrospective transition method with a cumulative effect adjustment to equity as of the beginning of the period in which it is adopted. Alternatively, the standard may be adopted using an optional transition method which the Company intends to use in its adoption of the new lease accounting standard. Under the optional transition method, the initial application of the provisions of ASU 2016-02 are applied as the date of adoption, resulting in no adjustment to amounts reported in prior periods. ASU 2016-02 is effective for annual reporting periods beginning after December 15, 2018, and interim periods within those annual periods. The Company has several leased facilities, which are currently treated as operating leases, and are not currently shown on the Company’s consolidated balance sheet. After ASU 2016-02 is implemented, the Company will begin reporting these lease agreements on the balance sheet as a right-of-use asset and a corresponding liability. During the fourth quarter of 2018, the Company contracted with a software vendor for software to be used in both the implementation and ongoing accounting under the new lease accounting standard. The Company has completed its inventory of operating leases that fall under the new lease accounting guidance and is preparing to load data pertaining to each lease into the software in order to be in compliance with the new lease accounting standard for its first quarter 2019 reporting. Based on the inventory of its operating leases, the Company does not expect the adoption of ASU 2016-02 to have a material impact on the Company's consolidated balance sheet, consolidated statements of income, shareholders’ equity or cash flows. The Company estimates an increase in the range of $30.0 million to $35.0 million to both total assets and total liabilities as a result of adopting ASU 2016-02 in the first quarter of 2019.
Reclassifications	Reclassifications Certain reclassifications of prior year amounts have been made to conform with the current year presentations.
Securities Sold Under Repurchase Agreements	The Company classifies the sales of securities under agreements to repurchase as short-term borrowings. The amounts received under these agreements are reflected as a liability in the Company’s consolidated balance sheets and the securities underlying these agreements are included in investment securities in the Company’s consolidated balance sheets. At December 31, 2018 and 2017, all securities sold under agreements to repurchase mature on a daily basis. The market value of the securities fluctuate on a daily basis due to market conditions. The Company monitors the market value of the securities underlying these agreements on a daily basis and is required to transfer additional securities if the market value of the securities fall below the repurchase agreement price. The Company maintains an unpledged securities portfolio that it believes is sufficient to protect against a decline in the market value of the securities sold under agreements to repurchase.
Revenue from Contracts with Customers	Debit Card Interchange Fees - The Company earns debit card interchange fees from debit cardholder transactions conducted through various payment networks. Interchange fees from debit cardholders transactions represent a percentage of the underlying transaction amount and are recognized daily, concurrently with the transaction processing services provided to the debit cardholder. Overdraft Fees - Overdraft fees are recognized at the point in time that the overdraft occurs. Other Service Charges on Deposit Accounts - Other service charges on deposit accounts include both transaction-based fees and account maintenance fees. Transaction based fees, which include wire transfer fees, stop payment charges, statement rendering, and automated clearing house ("ACH") fees, are recognized at the time the transaction is executed as that is the point in time the Company fulfills the customer's request. Account maintenance fees, which relate primarily to monthly maintenance, are earned over the course of a month, representing the period over which the Company satisfies the performance obligation. ATM Fees - Transaction-based ATM usage fees are recognized at the time the transaction is executed as that is the point at which the Company satisfies the performance obligation. Gains/Losses on the Sale of OREO - The net gains and losses on sales of OREO are recorded in credit resolution related expenses in the Company's consolidated statement of income. The Company records a gain or loss from the sale of OREO when control of the property transfers to the buyer, which generally occurs at the time of an executed deed. When the Company finances the sale of OREO to the buyer, the Company assesses whether the buyer is committed to perform their obligations under the contract and whether collectability of the transaction price is probable. Once these criteria are met, the OREO asset is derecognized and the gain or loss on sale is recorded upon the transfer of control of the property to the buyer. The Company does not provide financing for the sale of OREO unless these criteria are met and the OREO can be derecognized.