First Guaranty Bancshares (FGBI) 10-K 15 Mar 19 2018 FY Annual report Financial data

Document and Entity Information

Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2018	Mar. 14, 2019	Jun. 30, 2018
Document and Entity Information [Abstract]
Entity Registrant Name	First Guaranty Bancshares, Inc.
Entity Central Index Key	0001408534
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Accelerated Filer
Entity Public Float			$ 120,053,574
Entity Common Stock, Shares Outstanding		8,807,175
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	FY
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2018
Entity Small Business	true
Entity Emerging Growth Company	true
Entity Ex Transition Period	true
Entity Shell Company	false

CONSOLIDATED BALANCE SHEETS

CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Cash and cash equivalents:
Cash and due from banks	$ 127,416	$ 37,205
Federal funds sold	549	823
Cash and cash equivalents	127,965	38,028
Investment securities:
Available for sale, at fair value	296,977	381,535
Held to maturity, at cost (estimated fair value of $104,840 and $118,557, respectively)	108,326	120,121
Investment securities	405,303	501,656
Federal Home Loan Bank stock, at cost	2,393	2,351
Loans held for sale	344	1,308
Loans, net of unearned income	1,225,268	1,149,014
Less: allowance for loan losses	10,776	9,225
Net loans	1,214,492	1,139,789
Premises and equipment, net	39,695	38,020
Goodwill	3,472	3,472
Intangible assets, net	3,528	4,424
Other real estate, net	1,138	1,281
Accrued interest receivable	6,716	7,982
Other assets	12,165	12,119
Total Assets	1,817,211	1,750,430
Deposits:
Noninterest-bearing demand	244,516	251,617
Interest-bearing demand	594,359	611,677
Interest-bearing demand	109,958	104,661
Time	680,789	581,331
Total deposits	1,629,622	1,549,286
Short-term borrowings	0	15,500
Accrued interest payable	3,952	2,488
Senior long-term debt	19,838	22,774
Junior subordinated debentures	14,700	14,664
Other liabilities	1,815	1,735
Total Liabilities	1,669,927	1,606,447
Common stock:
$1 par value - authorized 100,600,000 shares; issued 8,807,175 shares	8,807	8,807
Surplus	92,268	92,268
Retained earnings	53,347	44,464
Accumulated other comprehensive income (loss)	(7,138)	(1,556)
Total Shareholders' Equity	147,284	143,983
Total Liabilities and Shareholders' Equity	$ 1,817,211	$ 1,750,430

CONSOLIDATED BALANCE SHEETS (Pa

CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Investment securities:
Fair value	$ 104,840	$ 118,557
Common stock:
Common stock, par value (in dollars per share)	$ 1	$ 1
Common stock, shares authorized (in shares)	100,600,000	100,600,000
Common stock, shares issued (in shares)	8,807,175	8,807,175

CONSOLIDATED STATEMENTS OF INCO

CONSOLIDATED STATEMENTS OF INCOME - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Interest Income:
Loans (including fees)		$ 64,836	$ 54,034	$ 45,495
Deposits with other banks		612	178	69
Securities (including FHLB stock)		12,941	13,325	12,968
Federal funds sold		1	9	0
Total Interest Income		78,390	67,546	58,532
Interest Expense:
Demand deposits		8,531	5,526	2,633
Savings deposits		407	201	80
Time deposits		10,690	7,112	5,954
Borrowings		1,738	1,554	1,473
Total Interest Expense		21,366	14,393	10,140
Net Interest Income		57,024	53,153	48,392
Less: Provision for loan losses		1,354	3,822	3,705
Net Interest Income after Provision for Loan Losses		55,670	49,331	44,687
Noninterest Income:
Service charges, commissions and fees		2,988	2,589	2,388
ATM and debit card fees		2,122	1,986	1,859
Net (losses) gains on securities		(1,830)	1,397	3,799
Net gains on sale of loans		278	311	14
Other		1,722	2,057	1,395
Total Noninterest Income		5,280	8,340	9,455
Noninterest Expense:
Salaries and employee benefits		22,888	20,113	16,577
Occupancy and equipment expense		5,601	4,505	4,242
Other		14,786	13,903	12,066
Total Noninterest Expense		43,275	38,521	32,885
Income Before Income Taxes		17,675	19,150	21,257
Less: Provision for income taxes		3,462	7,399	7,164
Net Income		$ 14,213	$ 11,751	$ 14,093
Per Common Share:
Earnings (in dollars per share)	[1]	$ 1.61	$ 1.37	$ 1.68
Cash dividends paid (in dollars per share)	[1]	$ 0.64	$ 0.60	$ 0.58
Weighted Average Common Shares Outstanding (in shares)	[1]	8,807,175	8,608,088	8,369,424
[1]	All share and per share amounts have been restated to reflect the ten percent stock dividend paid December 14, 2017 to shareholders of record as of December 8, 2017.

CONSOLIDATED STATEMENTS OF IN_2

CONSOLIDATED STATEMENTS OF INCOME (Parenthetical)	Dec. 14, 2017	Dec. 31, 2018	Dec. 31, 2017
Per Common Share:
Common stock, dividend paid percentage	10.00%		10.00%
Common stock, dividend paid date		Dec. 14, 2017
Common stock, dividend record date		Dec. 8, 2017

CONSOLIDATED STATEMENTS OF COMP

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Statement of Comprehensive Income [Abstract]
Net Income	$ 14,213	$ 11,751	$ 14,093
Unrealized gains (losses) on securities:
Unrealized holding (losses) gains arising during the period	(8,508)	5,098	(955)
Reclassification adjustments for gains (losses) included in net income	1,830	(1,397)	(3,799)
Reclassification of OTTI losses included in net income	0	0	60
Change in unrealized (losses) gains on securities	(6,678)	3,701	(4,694)
Tax impact	1,402	(1,258)	1,596
Other comprehensive (loss) income	(5,276)	2,443	(3,098)
Comprehensive Income	$ 8,937	$ 14,194	$ 10,995

CONSOLIDATED STATEMENTS OF CHAN

CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Thousands		Total	Common Stock $1 Par	Surplus	Retained Earnings	Accumulated Other Comprehensive Income/(Loss)
Balance at Dec. 31, 2015	[1]	$ 118,224	$ 8,369	$ 81,000	$ 29,756	$ (901)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		14,093	0	0	14,093	0
Other comprehensive income (loss)		(3,098)	0	0	0	(3,098)
Cash dividends on common stock (in dollars per share)	[1]	(4,870)	0	0	(4,870)	0
Balance at Dec. 31, 2016		124,349	8,369	81,000	38,979	(3,999)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income		11,751	0	0	11,751	0
Common stock issued in acquisition	[1]	10,650	438	11,268	(1,056)	0
Other comprehensive income (loss)		2,443	0	0	0	2,443
Cash dividends on common stock (in dollars per share)	[1]	(5,210)	0	0	(5,210)	0
Balance at Dec. 31, 2017		143,983	8,807	92,268	44,464	(1,556)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Reclassification of stranded tax effects in accumulated other comprehensive income	[2]	0	0	0	306	(306)
Net income		14,213	0	0	14,213	0
Other comprehensive income (loss)		(5,276)	0	0	0	(5,276)
Cash dividends on common stock (in dollars per share)		(5,636)	0	0	(5,636)	0
Balance at Dec. 31, 2018		$ 147,284	$ 8,807	$ 92,268	$ 53,347	$ (7,138)
[1]	All share and per share amounts reflect the ten percent stock dividend paid December 14, 2017 to shareholders of record as of December 8, 2017.
[2]	See Note 2 - Recent Accounting Pronouncements

CONSOLIDATED STATEMENTS OF CH_2

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical)	12 Months Ended
	Dec. 31, 2017$ / sharesshares
Statement of Stockholders' Equity [Abstract]
Cash dividends paid (in dollars per share) | $ / shares	$ 0.60	[1]
Common stock issued in acquisition (in shares) | shares	437,751
Common stock, dividend paid percentage	10.00%
[1]	All share and per share amounts have been restated to reflect the ten percent stock dividend paid December 14, 2017 to shareholders of record as of December 8, 2017.

CONSOLIDATED STATEMENTS OF CASH

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Cash Flows From Operating Activities:
Net income	$ 14,213	$ 11,751	$ 14,093
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for loan losses	1,354	3,822	3,705
Depreciation and amortization	3,289	2,444	2,190
Amortization/Accretion of investments	1,445	1,788	2,239
Loss (gain) on sale/call of securities	1,830	(1,397)	(3,799)
Other than temporary impairment charge on securities	0	0	60
Gain on sale of assets	(301)	(361)	(76)
Repossessed asset write downs, gain and losses on dispositions	(47)	103	243
FHLB stock dividends	(42)	(23)	(6)
Net decrease in loans held for sale	964	347	0
Change in other assets and liabilities, net	4,184	(6,199)	3,563
Net Cash Provided by Operating Activities	26,889	12,275	22,212
Cash Flows From Investing Activities:
Proceeds from maturities, calls and sales of certificates of deposit	0	0	1,001
Proceeds from maturities and calls of HTM securities	11,197	11,703	85,875
Proceeds from maturities, calls and sales of AFS securities	384,549	542,894	1,000,905
Funds invested in HTM securities	0	(30,530)	(18,563)
Funds Invested in AFS securities	(309,346)	(517,185)	(1,024,632)
Funds invested in Federal Home Loan Bank stock	0	0	(875)
Net increase in loans	(76,354)	(80,816)	(109,467)
Purchases of premises and equipment	(3,787)	(6,814)	(4,109)
Proceeds from sales of premises and equipment	46	51	983
Proceeds from sales of other real estate owned	484	608	1,098
Cash paid in excess of cash received in acquisition	0	(2,907)	0
Net Cash Provided By (Used In) Investing Activities	6,789	(82,996)	(67,784)
Cash Flows From Financing Activities:
Net increase in deposits	80,336	95,879	30,311
Net (decrease) increase in federal funds purchased and short-term borrowings	(15,500)	(700)	4,700
Proceeds from long-term debt, net of costs	0	3,750	0
Repayment of long-term debt	(2,941)	(3,081)	(3,730)
Dividends paid	(5,636)	(5,210)	(4,870)
Net Cash Provided By Financing Activities	56,259	90,638	26,411
Net Increase (Decrease In) Cash and Cash Equivalents	89,937	19,917	(19,161)
Cash and Cash Equivalents at the Beginning of the Period	38,028	18,111	37,272
Cash and Cash Equivalents at the End of the Period	127,965	38,028	18,111
Noncash Activities:
Acquisition of real estate in settlement of loans	297	1,374	123
Common stock issued in acquisition	0	10,650	0
Cash Paid During the Period:
Interest on deposits and borrowed funds	19,902	13,836	9,916
Income taxes	$ 2,400	$ 10,700	$ 3,000

Business and Summary of Signifi

Business and Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2018
Accounting Policies [Abstract]
Business and Summary of Significant Accounting Policies	Business and Summary of Significant Accounting Policies Business First Guaranty Bancshares, Inc. ("First Guaranty") is a Louisiana corporation headquartered in Hammond, LA. First Guaranty owns all of the outstanding shares of common stock of First Guaranty Bank. First Guaranty Bank (the "Bank") is a Louisiana state-chartered commercial bank that provides a diversified range of financial services to consumers and businesses in the communities in which it operates. These services include consumer and commercial lending, mortgage loan origination, the issuance of credit cards and retail banking services. The Bank also maintains an investment portfolio comprised of government, government agency, corporate, and municipal securities. The Bank has twenty-seven banking offices, including one drive-up banking facility, and thirty-six automated teller machines (ATMs) in Southeast Louisiana, Southwest Louisiana, North Louisiana and North Central Texas. Summary of significant accounting policies The accounting and reporting policies of First Guaranty conform to generally accepted accounting principles and to predominant accounting practices within the banking industry. The more significant accounting and reporting policies are as follows: Consolidation The consolidated financial statements include the accounts of First Guaranty Bancshares, Inc., and its wholly owned subsidiary, First Guaranty Bank. All significant intercompany balances and transactions have been eliminated in consolidation. Acquisition Accounting Acquisitions are accounted for under the purchase method of accounting. Purchased assets, including identifiable intangibles, and assumed liabilities are recorded at their respective acquisition date fair values. If the fair value of net assets purchased exceeds the consideration given, a gain on acquisition is recognized. 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 information relative to closing date fair values becomes available. Purchased loans acquired in a business combination are recorded at estimated fair value on their purchase date with no carryover of the related allowance for loan losses. See Acquired Loans section below for accounting policy regarding loans acquired in a business combination. Use of estimates The preparation of financial statements in conformity with generally accepted accounting principles requires Management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the dates of the financial statements and the reported amounts of revenue and expense during the reporting periods. Actual results could differ from those estimates. 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 real estate acquired in connection with foreclosures or in satisfaction of loans, and the valuation of investment securities. In connection with the determination of the allowance for loan losses and real estate owned, First Guaranty obtains independent appraisals for significant properties. Cash and cash equivalents For purposes of reporting cash flows, cash and cash equivalents are defined as cash, due from banks, interest-bearing demand deposits with banks and federal funds sold with maturities of three months or less. Securities First Guaranty reviews its financial position, liquidity and future plans in evaluating the criteria for classifying investment securities. Debt securities that Management has the ability and intent to hold to maturity are classified as held to maturity and carried at cost, adjusted for amortization of premiums and accretion of discounts using methods approximating the interest method. Securities available for sale are stated at fair value. The unrealized difference, if any, between amortized cost and fair value of these AFS securities is excluded from income and is reported, net of deferred taxes, in accumulated other comprehensive income as a part of shareholders' equity. Details of other comprehensive income are reported in the consolidated statements of comprehensive income. Realized gains and losses on securities are computed based on the specific identification method and are reported as a separate component of other income. Amortization of premiums and discounts is included in interest income. Discounts and premiums related to debt securities are amortized using the effective interest rate method. Management evaluates securities for other-than-temporary impairment ("OTTI") at least on a quarterly basis, and more frequently when economic or market conditions warrant such an evaluation. In estimating other-than-temporary losses, management considers the length of time and extent that fair value has been less than cost and the financial condition and near term prospects of the issuer. Management also assesses whether it intends to sell, or it is more likely than not that it will be required to sell, a security in an unrealized loss position before recovery of its amortized cost basis. If either of the criteria regarding intent or requirement to sell is met, the entire difference between amortized cost and fair value is recognized as impairment through earnings. For debt securities that do not meet the aforementioned criteria, the amount of impairment is split into two components as follows: 1) OTTI related to credit loss, which must be recognized in the income statement and 2) OTTI related to other factors, which is recognized in other comprehensive income. The credit loss is defined as the difference between the present value of the cash flows expected to be collected and the amortized cost basis. For equity securities, the entire amount of impairment is recognized through earnings. Loans held for sale Mortgage loans originated and intended for sale in the secondary market are carried at the lower of cost or estimated fair value in the aggregate. Net unrealized losses, if any, are recognized through a valuation allowance by charges to income. Loans held for sale have primarily been fixed rate single-family residential mortgage loans under contract to be sold in the secondary market. In most cases, loans in this category are sold within thirty days. Buyers generally have recourse to return a purchased loan under limited circumstances. Recourse conditions may include early payment default, breach of representations or warranties and documentation deficiencies. Mortgage loans held for sale are generally sold with the mortgage servicing rights released. Gains or losses on sales of mortgage loans are recognized based on the differences between the selling price and the carrying value of the related mortgage loans sold. Loans Loans are stated at the principal amounts outstanding, net of unearned income and deferred loan fees. In addition to loans issued in the normal course of business, overdrafts on customer deposit accounts are considered to be loans and reclassified as such. Interest income on all classifications of loans is calculated using the simple interest method on daily balances of the principal amount outstanding. Accrual of interest is discontinued on a loan when Management believes, after considering economic and business conditions and collection efforts, the borrower's financial condition is such that reasonable doubt exists as to the full and timely collection of principal and interest. This evaluation is made for all loans that are 90 days or more contractually past due. When a loan is placed in nonaccrual status, all interest previously accrued but not collected is reversed against current period interest income. Income on such loans is then recognized only to the extent that cash is received and where the future collection of interest and principal is probable. Loans are returned to accrual status when, in the judgment of Management, all principal and interest amounts contractually due are reasonably assured to be collected within a reasonable time frame and when the borrower has demonstrated payment performance of cash or cash equivalents; generally for a period of 6 months months. All loans, except mortgage loans, are considered past due if they are past due 30 days. Mortgage loans are considered past due when two consecutive payments have been missed. Loans that are past due 90 - 120 days and deemed uncollectible are charged-off. The loan charge off is a reduction of the allowance for loan losses. Troubled Debt Restructurings (TDRs) TDRs are loans in which the borrower is experiencing financial difficulty at the time of restructuring, and the Bank has granted a concession to the borrower. TDRs are undertaken in order to improve the likelihood of recovery on the loan and may take the form of modifications made with the stated interest rate lower than the current market rate for new debt with similar risk, other modifications to the structure of the loan that fall outside of normal underwriting policies and procedures, or in limited circumstances forgiveness of principal and / or interest. TDRs can involve loans remaining on non-accrual, moving to non-accrual, or continuing on accrual status, depending on the individual facts and circumstances of the borrower. TDRs are subject to policies governing accrual and non-accrual evaluation consistent with all other loans as discussed in the "Loans" section above. All loans with the TDR designation are considered to be impaired, even if they are accruing. First Guaranty's policy is to evaluate TDRs that have subsequently been restructured and returned to market terms after 6 months of performance. The evaluation includes a review of the loan file and analysis of the credit to assess the loan terms, including interest rate to insure such terms are consistent with market terms. The loan terms are compared to a sampling of loans with similar terms and risk characteristics, including loans originated by First Guaranty and loans lost to a competitor. The sample provides a guide to determine market terms pursuant to ASC 310-40-50-2. The loan is also evaluated at that time for impairment. A loan determined to be restructured to market terms and not considered impaired will no longer be disclosed as a TDR in the years following the restructuring. These loans will continue to be individually evaluated for impairment. A loan determined to either be restructured to below market terms or to be impaired will remain a TDR. Credit Quality First Guaranty's credit quality indicators are pass, special mention, substandard, and doubtful. Loans included in the pass category are performing loans with satisfactory debt coverage ratios, collateral, payment history, and documentation requirements. Special mention loans have potential weaknesses that deserve close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects. Borrowers may be experiencing adverse operating trends (declining revenues or margins) or an ill proportioned balance sheet (e.g., increasing inventory without an increase in sales, high leverage, tight liquidity). Adverse economic or market conditions, such as interest rate increases or the entry of a new competitor, may also support a special mention rating. Nonfinancial reasons include management problems, pending litigation, an ineffective loan agreement or other material structural weakness, and any other significant deviation from prudent lending practices. A substandard loan is inadequately protected by the paying capacity of the obligor or of the collateral pledged, if any. Loans classified as substandard have a well-defined weakness. They are characterized by the distinct possibility that First Guaranty will sustain some loss if the deficiencies are not corrected. These loans require more intensive supervision. Substandard loans are generally characterized by current or expected unprofitable operations, inadequate debt service coverage, inadequate liquidity, or marginal capitalization. Repayment may depend on collateral or other credit risk mitigates. For some substandard loans, the likelihood of full collection of interest and principal may be in doubt and interest is no longer accrued. Consumer loans that are 90 days or more past due or that are nonaccrual are considered substandard. Doubtful loans have the weaknesses of substandard loans with the additional characteristic that the weaknesses make collection or liquidation in full questionable and there is a high probability of loss based on currently existing facts, conditions and values. A loan is considered impaired when, based on current information and events, it is probable that First Guaranty will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement. Factors considered by Management in determining impairment include payment status, collateral value and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired. Management determines the significance of payment delays and payment shortfalls on a case-by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, including the length of the delay, the reasons for the delay, the borrower's prior payment record and the amount of the shortfall in relation to the principal and interest owed. Impairment is measured on a loan-by-loan basis for commercial and construction loans by either the present value of expected future cash flows discounted at the loan's effective interest rate, the loan's obtainable market price or the fair value of the collateral if the loan is collateral dependent. This process is only applied to impaired loans or relationships in excess of $500,000 . Large groups of smaller balance homogeneous loans are collectively evaluated for impairment. Accordingly, individual consumer and residential loans are not separately identified for impairment disclosures, unless such loans are the subject of a restructuring agreement. Loans that have been restructured in a troubled debt restructuring will continue to be evaluated individually for impairment, including those no longer requiring disclosure. Acquired Loans Loans are recorded at estimated fair value on their purchase date with no carryover of the related allowance for loan losses. Acquired loans are segregated between those with deteriorated credit quality at acquisition and those deemed as performing. To make this determination, Management considers such factors as past due status, nonaccrual status, credit risk ratings, interest rates and collateral position. The fair value of acquired loans deemed performing is determined by discounting cash flows, both principal and interest, for each pool at prevailing market interest rates as well as consideration of inherent potential losses. The difference between the fair value and principal balances due at acquisition date, the fair value discount, is accreted into income over the estimated life of each loan pool. Loans acquired in a business combination are recorded at their estimated fair value on their purchase date with no carryover of the related allowance for loan losses. Performing acquired loans are subsequently evaluated for any required allowance at each reporting date. An allowance for loan losses is calculated using a similar methodology for originated loans. Loan fees and costs Nonrefundable loan origination and commitment fees and direct costs associated with originating loans are deferred and recognized over the lives of the related loans as an adjustment to the loans' yield using the level yield method. Allowance for loan losses The allowance for loan losses is established through a provision for loan losses charged to expense. Loans are charged against the allowance for loan losses when Management believes that the collectability of the principal is unlikely. The allowance, which is based on evaluation of the collectability of loans and prior loan loss experience, is an amount that, in the opinion of Management, reflects the risks inherent in the existing loan portfolio and exists at the reporting date. The evaluations take into consideration a number of subjective factors including changes in the nature and volume of the loan portfolio, historical losses, overall portfolio quality, review of specific problem loans, current economic conditions that may affect a borrower's ability to pay, adequacy of loan collateral and other relevant factors. In addition, regulatory agencies, as an integral part of their examination process, periodically review the estimated losses on loans. Such agencies may require additional recognition of losses based on their judgments about information available to them at the time of their examination. The following are general credit risk factors that affect First Guaranty's loan portfolio segments. These factors do not encompass all risks associated with each loan category. Construction and land development loans have risks associated with interim construction prior to permanent financing and repayment risks due to the future sale of developed property. Farmland and agricultural loans have risks such as weather, government agricultural policies, fuel and fertilizer costs, and market price volatility. 1-4 family, multi-family, and consumer credits are strongly influenced by employment levels, consumer debt loads and the general economy. Non-farm non-residential loans include both owner occupied real estate and non-owner occupied real estate. Common risks associated with these properties is the ability to maintain tenant leases and keep lease income at a level able to service required debt and operating expenses. Commercial and industrial loans generally have non-real estate secured collateral which requires closer monitoring than real estate collateral. Although Management uses available information to recognize losses on loans, because of uncertainties associated with local economic conditions, collateral values and future cash flows on impaired loans, it is reasonably possible that a material change could occur in the allowance for loan losses in the near term. However, the amount of the change that is reasonably possible cannot be estimated. The evaluation of the adequacy of loan collateral is often based upon estimates and appraisals. Because of changing economic conditions, the valuations determined from such estimates and appraisals may also change. Accordingly, First Guaranty may ultimately incur losses that vary from Management's current estimates. Adjustments to the allowance for loan losses will be reported in the period such adjustments become known or can be reasonably estimated. All loan losses are charged to the allowance for loan losses when the loss actually occurs or when the collectability of the principal is unlikely. Recoveries are credited to the allowance at the time of recovery. The allowance consists of specific, general, and unallocated components. The specific component relates to loans that are classified as doubtful, substandard, and impaired. For such loans that are also classified as impaired, an allowance is established when the discounted cash flows (or collateral value or observable market price) of the impaired loan is lower than the carrying value of that loan. Also, a specific reserve is allocated for syndicated loans. The general component covers non-classified loans and special mention loans and is based on historical loss experience adjusted for qualitative factors. An unallocated component is maintained to cover uncertainties that could affect the estimate of probable losses. The allowance for loan losses is reviewed on a monthly basis. The monitoring of credit risk also extends to unfunded credit commitments, such as unused commercial credit lines and letters of credit. A reserve is established as needed for estimates of probable losses on such commitments. Goodwill and intangible assets Goodwill and intangible assets deemed to have indefinite lives are subject to annual impairment tests. First Guaranty's goodwill is tested for impairment on an annual basis, or more often if events or circumstances indicate that there may be impairment. Adverse changes in the economic environment, declining operations, or other factors could result in a decline in the implied fair value of goodwill. If the implied fair value is less than the carrying amount, a loss would be recognized in other non-interest expense to reduce the carrying amount to implied fair value of goodwill. The goodwill impairment test includes two steps that are preceded by a, "step zero", qualitative test. The qualitative test allows Management to assess whether qualitative factors indicate that it is more likely than not that impairment exists. If it is not more likely than not that impairment exists, then no impairment exists and the two step quantitative test would not be necessary. These qualitative indicators include factors such as earnings, share price, market conditions, etc. If the qualitative factors indicate that it is more likely than not that impairment exists, then the two step quantitative test would be necessary. Step one is used to identify potential impairment and compares the estimated fair value of a reporting unit with its carrying amount, including goodwill. If the estimated fair value of a reporting unit exceeds its carrying amount, goodwill of the reporting unit is not considered impaired. If the carrying amount of a reporting unit exceeds its estimated fair value, the second step of the goodwill impairment test is performed to measure the amount of impairment loss, if any. Step two of the goodwill impairment test compares the implied estimated fair value of reporting unit goodwill with the carrying amount of that goodwill. If the carrying amount of goodwill for that reporting unit exceeds the implied fair value of that unit's goodwill, an impairment loss is recognized in an amount equal to that excess. Identifiable intangible assets are acquired assets that lack physical substance but can be distinguished from goodwill because of contractual or legal rights or because the assets are capable of being sold or exchanged either on their own or in combination with the related contract, asset or liability. First Guaranty's intangible assets primarily relate to core deposits and loan servicing assets related to the SBA portfolio. These core deposit intangibles are amortized on a straight-line basis over terms ranging from seven to fifteen years. Management periodically evaluates whether events or circumstances have occurred that impair this deposit intangible. Premises and equipment Premises and equipment are stated at cost, less accumulated depreciation. Depreciation is computed for financial reporting purposes using the straight-line method over the estimated useful lives of the respective assets as follows: Buildings and improvements 10 - 40 years Equipment, fixtures and automobiles 3 - 10 years Expenditures for renewals and betterments are capitalized and depreciated over their estimated useful lives. Repairs, maintenance and minor improvements are charged to operating expense as incurred. Gains or losses on disposition, if any, are recorded as a separate line item in noninterest income on the Statements of Income . Other real estate Other real estate includes properties acquired through foreclosure or acceptance of deeds in lieu of foreclosure. These properties are recorded at the lower of the recorded investment in the property or its fair value less the estimated cost of disposition. Any valuation adjustments required prior to foreclosure are charged to the allowance for loan losses. Subsequent to foreclosure, losses on the periodic revaluation of the property are charged to current period earnings as other real estate expense. Costs of operating and maintaining the properties are charged to other real estate expense as incurred. Any subsequent gains or losses on dispositions are credited or charged to income in the period of disposition . Off-balance sheet financial instruments In the ordinary course of business, First Guaranty has entered into commitments to extend credit, including commitments under credit card arrangements, commitments to fund commercial real estate, construction and land development loans secured by real estate, and performance standby letters of credit. Such financial instruments are recorded when they are funded. Income taxes First Guaranty and its subsidiary file a consolidated federal income tax return on a calendar year basis. In lieu of Louisiana state income tax, the Bank is subject to the Louisiana bank shares tax, which is included in noninterest expense in First Guaranty's consolidated financial statements. With few exceptions, First Guaranty is no longer subject to U.S. federal, state or local income tax examinations for years before 2014. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax basis. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which the deferred tax assets or liabilities are expected to be settled or realized. Valuation allowances are established when necessary to reduce deferred tax assets to the amount expected to be utilized. Comprehensive income Accounting principles generally require that recognized revenue, expenses, gains and losses be included in net income. Although certain changes in assets and liabilities, such as unrealized gains and losses on available for sale securities, are reported as a separate component of the equity section of the balance sheet, such items along with net income, are components of comprehensive income. The components of other comprehensive income and related tax effects are presented in the Statements of Comprehensive Income. Fair Value Measurements The fair value of a financial instrument is the current amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. A fair value measurement assumes that the transaction to sell the asset or transfer the liability occurs in the principal market for the asset or liability or, in the absence of a principal market, the most advantageous market for the asset or liability. Valuation techniques use certain inputs to arrive at fair value. Inputs to valuation techniques are the assumptions that market participants would use in pricing the asset or liability. They may be observable or unobservable. First Guaranty uses a fair value hierarchy for valuation inputs that gives the highest priority to quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs. See Note 20 for a detailed description of fair value measurements. Transfers of Financial Assets Transfers of financial assets are accounted for as sales, when control over the assets has been surrendered. Control over transferred assets is deemed to be surrendered when (i) the assets have been isolated from First Guaranty, (ii) 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 (iii) First Guaranty does not maintain effective control over the transferred assets through an agreement to repurchase them before their maturity. Earnings per common share Earnings per share represents income available to common shareholders divided by the weighted average number of common shares outstanding during the period. In December of 2017, First Guaranty issued a pro rata, 10% common stock dividend. The shares issued for the stock dividend have been retrospectively factored into the calculation of earnings per share as well as cash dividends paid on common stock and represented on the face of the financial statements. No convertible shares of First Guaranty's stock are outstanding. Operating Segments All of First Guaranty's operations are considered by management to be aggregated into one reportable operating segment. While the chief decision-makers monitor the revenue streams of the various products and services, the identifiable segments are not material. Operations are managed and financial performance is evaluated on a Company-wide basis. Reclassifications Certain reclassifications have been made to prior year end financial statements in order to conform to the classification adopted for reporting in 2018 .

Recent Accounting Pronouncement

Recent Accounting Pronouncements	12 Months Ended
	Dec. 31, 2018
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Recent Accounting Pronouncements	Recent Accounting Pronouncements In February 2016, the FASB issued ASU 2016-02, "Leases: Conforming Amendments Related to Leases". This ASU amends the codification regarding leases in order to increase transparency and comparability. The ASU requires companies to recognize lease assets and liabilities on the balance sheet and disclose key information about leasing arrangements. A lessee would recognize a liability to make lease payments and a right-of-use asset representing its right to use the leased asset for the lease term. The ASU is effective for annual and interim periods beginning after December 15, 2018. The adoption of this ASU is not expected to have a material effect on First Guaranty's Consolidated Financial Statements. In June 2016, the FASB issued ASU 2016-13, "Financial Instruments- Credit Losses: Measurement of Credit Losses on Financial Instruments". This ASU amends guidance on reporting credit losses for assets held at amortized cost basis and available for sale debt securities. The ASU amendments require the measurement of all expected credit losses for financial assets held at the reporting date be based on historical experience, current conditions, and reasonable and supportable forecasts. The ASU requires assets held at cost basis to reflect the company's current estimate of all expected credit losses. For available for sale debt securities, credit losses should be presented as an allowance rather than as a write-down. In addition, this ASU amends the accounting for purchased financial assets with credit deterioration. This ASU is effective for annual and interim periods beginning after December 15, 2019. First Guaranty is currently evaluating the impact of this accounting standard and is implementing a new software application to assist in determining the impact on the Consolidated Financial Statements. In January 2017, the FASB issued ASU 2017-04, "Intangibles - Goodwill and Other: Simplifying the Test for Goodwill Impairment". This ASU amends the guidance on impairment testing. The ASU eliminates Step 2 from the goodwill impairment test. 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, income tax effects from any tax deductible goodwill on the carrying amount of the reporting unit should be considered when measuring the goodwill impairment loss, if applicable. The ASU also eliminates the requirements for any reporting unit with a zero or negative carrying amount to perform a qualitative assessment and, if it fails that qualitative test, 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. This ASU is effective for annual and interim periods beginning after December 15, 2019. First Guaranty is currently evaluating the impact of the adoption of this guidance on the Consolidated Financial Statements. In March 2017, the FASB issued ASU 2017-08, "Receivables- Nonrefundable Fees and Other Costs, Premium Amortization on Purchased Callable Debt Securities". This ASU shortens the amortization period for certain callable debt securities held at a premium. Specifically, this ASU requires the premium to be amortized to the earliest call date. This ASU does not require an accounting change for securities held at a discount, the discount continues to be amortized to maturity. This ASU is effective for annual and interim periods beginning after December 15, 2018. First Guaranty is currently evaluating the impact of the adoption of this guidance on the Consolidated Financial Statements. In February 2018, the FASB issued ASU 2018-02, "Income Statement - Reporting Comprehensive Income: Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income". This ASU provides an option to reclassify stranded tax effects within AOCI to retained earnings in each period in which the effect of the change in the U.S. federal corporate income tax rate in the Tax Cuts and Jobs Act (or portion thereof) is recorded. This ASU requires disclosure of a description of the accounting policy for releasing income tax effects from AOCI; whether election is made to reclassify the stranded income tax effects from the Tax Cuts and Jobs Act; and information about the other income tax effects that are reclassified. This ASU is effective for annual and interim periods beginning after December 15, 2018. First Guaranty adopted this ASU in the third quarter of 2018 and reclassified its stranded tax credit of $306,000 from accumulated other comprehensive income to retained earnings. In August 2018, the FASB issued ASU No. 2018-13, "Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement." This ASU removes, modifies, and adds certain disclosure requirements for fair value measurements. For example, public entities will no longer be required to disclose the valuation processes for Level 3 fair value measurements, but will be required to disclose the range and weighted average used to develop significant unobservable inputs for Level 3 fair value measurements. This ASU is effective for interim and annual reporting periods beginning after December 15, 2019. In addition, entities may early adopt the modified or eliminated disclosure requirements and delay adoption of the additional disclosure requirements until their effective date. First Guaranty does not believe the adoption of this ASU will have a material impact on the Consolidated Financial Statements, as the update only revises disclosure requirements.

Merger Transaction

Merger Transaction	12 Months Ended
	Dec. 31, 2018
Business Combinations [Abstract]
Merger Transaction	Merger Transaction Effective at the close of business on June 16, 2017 , First Guaranty completed its acquisition of 100% of the outstanding shares of Premier Bancshares, Inc., a Texas corporation ("Premier"), a single bank holding company headquartered in McKinney, Texas and its wholly owned subsidiary, Synergy Bank. This acquisition allowed First Guaranty to expand its presence into the North Central Texas market area. Under terms of an agreement and plan of merger dated January 30, 2017 , First Guaranty issued 0.119 of a share of its common stock for each share of Premier for a total of 397,988 shares at a price of $25.86 (unadjusted for the 10% stock dividend in December 2017 ) and paid $10.3 million in cash for an acquisition value of approximately $21.0 million . The purchase price resulted in approximately $1.5 million in goodwill and $2.7 million in core deposit intangible, none of which is deductible for tax purposes. First Guaranty accounts for business combinations under the acquisition method in accordance with ASC Topic 805, Business Combinations. Accordingly, for each transaction, the purchase price is allocated to the fair value of the assets acquired and liabilities assumed as of the date of the acquisition. In conjunction with the adoption of ASU 2015-16, upon receipt of final fair value estimates during the measurement period, which must be within one year of the acquisition dates, First Guaranty records any adjustments to the preliminary fair value estimates in the reporting period in which the adjustments are determined. During the second quarter of 2018, First Guaranty finalized the purchase price allocations related to the Premier acquisition. No adjustments to goodwill were made in 2018. (in thousands) Premier Bancshares, Inc. Cash and due from banks $ 4,542 Federal funds sold 2,855 Securities available for sale 5,892 Loans 128,018 Premises and equipment 9,493 Goodwill 1,474 Intangible assets 3,809 Other real estate 221 Other assets 2,009 Total assets acquired $ 158,313 Deposits 127,228 FHLB borrowings 9,700 Other liabilities 431 Total liabilities assumed $ 137,359 Net assets acquired $ 20,954 The following pro forma information for the twelve months ended December 31, 2017 and December 31, 2016 reflects First Guaranty's estimated consolidated results of operations as if the acquisition of Premier occurred at January 1, 2016, unadjusted for potential cost savings. (in thousands, except share data) 2017 2016 Net Interest Income $ 55,663 $ 53,190 Noninterest Income 8,540 11,541 Noninterest Expense 42,434 39,395 Net Income 10,885 13,709 Earnings per common share $ 1.24 $ 1.56

Cash and Due from Banks

Cash and Due from Banks	12 Months Ended
	Dec. 31, 2018
Cash and Cash Equivalents [Abstract]
Cash and Due from Banks	Cash and Due from Banks Certain reserves are required to be maintained at the Federal Reserve Bank. There was no reserve requirement as of December 31, 2018 and 2017 . At December 31, 2018 First Guaranty had only one account at correspondent banks, excluding the Federal Reserve Bank, that exceeded the FDIC insurable limit of $250,000 . This account was over the insurable limit by $127,000 . At December 31, 2017 First Guaranty had only one account at correspondent banks, excluding the Federal Reserve Bank, that exceeded the FDIC insurable limit of $250,000 . This account was over the insurable limit by $630,000 .

Securities

Securities	12 Months Ended
	Dec. 31, 2018
Investments, Debt and Equity Securities [Abstract]
Securities	Securities A summary comparison of securities by type at December 31, 2018 and 2017 is shown below. December 31, 2018 December 31, 2017 (in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Available for sale: U.S. Treasuries $ — $ — $ — $ — $ 19,490 $ — $ (4 ) $ 19,486 U.S. Government Agencies 146,911 — (5,522 ) 141,389 200,052 — (4,069 ) 195,983 Corporate debt securities 76,310 72 (3,504 ) 72,878 91,770 661 (946 ) 91,485 Mutual funds or other equity securities 483 — — 483 500 — (7 ) 493 Municipal bonds 32,956 1,120 (175 ) 33,901 37,210 2,434 (75 ) 39,569 Collateralized mortgage obligations 918 — (14 ) 904 1,191 — (6 ) 1,185 Mortgage-backed securities 48,434 — (1,012 ) 47,422 33,680 — (346 ) 33,334 Total available for sale securities $ 306,012 $ 1,192 $ (10,227 ) $ 296,977 $ 383,893 $ 3,095 $ (5,453 ) $ 381,535 Held to maturity: U.S. Government Agencies $ 28,172 $ — $ (1,081 ) $ 27,091 $ 28,169 $ — $ (670 ) $ 27,499 Municipal bonds 5,227 — (101 ) 5,126 5,322 15 (12 ) 5,325 Mortgage-backed securities 74,927 — (2,304 ) 72,623 86,630 6 (903 ) 85,733 Total held to maturity securities $ 108,326 $ — $ (3,486 ) $ 104,840 $ 120,121 $ 21 $ (1,585 ) $ 118,557 The scheduled maturities of securities at December 31, 2018 , by contractual maturity, are shown below. Actual maturities may differ from contractual maturities due to call or prepayments. Mortgage-backed securities are not due at a single maturity because of amortization and potential prepayment of the underlying mortgages. For this reason they are presented separately in the maturity table below. December 31, 2018 (in thousands) Amortized Cost Fair Value Available for sale: Due in one year or less $ 3,035 $ 3,048 Due after one year through five years 55,844 54,601 Due after five years through 10 years 180,855 174,307 Over 10 years 16,926 16,695 Subtotal 256,660 248,651 Collateralized mortgage obligations 918 904 Mortgage-backed Securities 48,434 47,422 Total available for sale securities $ 306,012 $ 296,977 Held to maturity: Due in one year or less $ — $ — Due after one year through five years 7,248 7,074 Due after five years through 10 years 17,339 16,545 Over 10 years 8,812 8,598 Subtotal 33,399 32,217 Mortgage-backed Securities 74,927 72,623 Total held to maturity securities $ 108,326 $ 104,840 The following is a summary of the fair value of securities with gross unrealized losses and an aging of those gross unrealized losses at December 31, 2018 . December 31, 2018 Less Than 12 Months 12 Months or More Total (in thousands) Number of Securities Fair Value Gross Unrealized Losses Number of Securities Fair Value Gross Unrealized Losses Number of Securities Fair Value Gross Unrealized Losses Available for sale: U.S. Treasuries — $ — $ — — $ — $ — — $ — $ — U.S. Government Agencies 1 4,227 (273 ) 50 137,162 (5,249 ) 51 141,389 (5,522 ) Corporate debt securities 37 9,560 (252 ) 183 58,877 (3,252 ) 220 68,437 (3,504 ) Mutual funds or other equity securities — — — — — — — — — Municipal bonds 1 115 — 19 8,436 (175 ) 20 8,551 (175 ) Collateralized mortgage obligations — — — 5 904 (14 ) 5 904 (14 ) Mortgage-backed securities 16 19,453 (73 ) 38 27,969 (939 ) 54 47,422 (1,012 ) Total available for sale securities 55 $ 33,355 $ (598 ) 295 $ 233,348 $ (9,629 ) 350 $ 266,703 $ (10,227 ) Held to maturity: U.S. Government Agencies — $ — $ — 14 $ 27,091 $ (1,081 ) 14 $ 27,091 $ (1,081 ) Municipal bonds — — — 9 5,126 (101 ) 9 5,126 (101 ) Mortgage-backed securities — — — 56 72,623 (2,304 ) 56 72,623 (2,304 ) Total held to maturity securities — $ — $ — 79 $ 104,840 $ (3,486 ) 79 $ 104,840 $ (3,486 ) The following is a summary of the fair value of securities with gross unrealized losses and an aging of those gross unrealized losses at December 31, 2017 . December 31, 2017 Less Than 12 Months 12 Months or More Total (in thousands) Number of Securities Fair Value Gross Unrealized Losses Number of Securities Fair Value Gross Unrealized Losses Number of Securities Fair Value Gross Unrealized Losses Available for sale: U.S. Treasuries 6 $ 19,486 $ (4 ) — $ — $ — 6 $ 19,486 $ (4 ) U.S. Government Agencies 30 62,991 (519 ) 36 132,992 (3,550 ) 66 195,983 (4,069 ) Corporate debt securities 56 19,050 (240 ) 70 22,818 (706 ) 126 41,868 (946 ) Mutual funds or other equity securities 1 493 (7 ) — — — 1 493 (7 ) Municipal bonds 9 4,431 (36 ) 1 1,079 (39 ) 10 5,510 (75 ) Collateralized mortgage obligations 4 936 (6 ) — — — 4 936 (6 ) Mortgage-backed securities 26 14,737 (73 ) 11 18,313 (273 ) 37 33,050 (346 ) Total available for sale securities 132 $ 122,124 $ (885 ) 118 $ 175,202 $ (4,568 ) 250 $ 297,326 $ (5,453 ) Held to maturity: U.S. Government Agencies 4 $ 9,925 $ (75 ) 10 $ 17,574 $ (595 ) 14 $ 27,499 $ (670 ) Municipal bonds 6 3,191 (12 ) — — — 6 3,191 (12 ) Mortgage-backed securities 35 54,186 (515 ) 17 26,852 (388 ) 52 81,038 (903 ) Total held to maturity securities 45 $ 67,302 $ (602 ) 27 $ 44,426 $ (983 ) 72 $ 111,728 $ (1,585 ) As of December 31, 2018 , 429 of First Guaranty's debt securities had unrealized losses totaling 3.6% of the individual securities' amortized cost basis and 3.3% of First Guaranty's total amortized cost basis of the investment securities portfolio. 374 of the 429 securities had been in a continuous loss position for over 12 months at such date. The 374 securities had an aggregate amortized cost basis of $351.3 million and an unrealized loss of $13.1 million at December 31, 2018 . Management has the intent and ability to hold these debt securities until maturity or until anticipated recovery. Securities are evaluated for other-than-temporary impairment at least quarterly and more frequently when economic or market conditions warrant such evaluation. Consideration is given to (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, (iii) the recovery of contractual principal and interest and (iv) the intent and ability of First Guaranty to retain its investment in the issuer for a period of time sufficient to allow for any anticipated recovery in fair value. Investment securities issued by the U.S. Government and Government sponsored enterprises with unrealized losses and the amount of unrealized losses on those investment securities that are the result of changes in market interest rates will not be other-than-temporarily impaired. First Guaranty has the ability and intent to hold these securities until recovery, which may not be until maturity. Corporate debt securities in a loss position consist primarily of corporate bonds issued by businesses in the financial, insurance, utility, manufacturing, industrial, consumer products and oil and gas industries. One issuer has other-than-temporary impairment losses at December 31, 2018 . First Guaranty believes that the remaining issuer will be able to fulfill the obligations of these securities based on evaluations described above. First Guaranty has the ability and intent to hold these securities until they recover, which could be at their maturity dates. During the years ended December 31, 2018 , 2017 , and 2016 , First Guaranty recorded OTTI losses on available for sale securities as follows: (in thousands) Year Ended December 31, 2018 Year Ended December 31, 2017 Year Ended December 31, 2016 Total OTTI charge realized and unrealized $ — $ — $ 66 OTTI recognized in other comprehensive income (non-credit component) — — 6 Net impairment losses recognized in earnings (credit component) $ — $ — $ 60 There were $0 , $0 , and $0.1 million other-than-temporary impairment losses recognized on securities in 2018 , 2017 and 2016 , respectively. The following table presents a roll-forward of the amount of credit losses on debt securities held by First Guaranty for which a portion of OTTI was recognized in other comprehensive income for the year ended December 31, 2018 , 2017 , and 2016 : (in thousands) Year Ended December 31, 2018 Year Ended December 31, 2017 Year Ended December 31, 2016 Beginning balance of credit losses at beginning of year $ 60 $ 60 $ 175 Other-than-temporary impairment credit losses on securities not previously OTTI — — 60 Increases for additional credit losses on securities previously determined to be OTTI — — — Reduction for increases in cash flows — — — Reduction due to credit impaired securities sold or fully settled — — (175 ) Ending balance of cumulative credit losses recognized in earnings at end of year $ 60 $ 60 $ 60 In 2018 there were no other-than-temporary impairment credit losses on securities for which First Guaranty had previously recognized OTTI. For securities that have indications of credit related impairment, management analyzes future expected cash flows to determine if any credit related impairment is evident. Estimated cash flows are determined using management's best estimate of future cash flows based on specific assumptions. The assumptions used to determine the cash flows were based on estimates of loss severity and credit default probabilities. Management reviews reports from credit rating agencies and public filings of issuers. In 2017 there were no other-than-temporary impairment credit losses on securities for which First Guaranty had previously recognized OTTI. For securities that have indications of credit related impairment, management analyzes future expected cash flows to determine if any credit related impairment is evident. Estimated cash flows are determined using management's best estimate of future cash flows based on specific assumptions. The assumptions used to determine the cash flows were based on estimates of loss severity and credit default probabilities. Management reviews reports from credit rating agencies and public filings of issuers. In 2016 there were no other-than-temporary impairment credit losses on securities for which First Guaranty had previously recognized OTTI. The amount related to losses on securities with no previous losses amounted to $0.1 million at December 31, 2016 . For securities that have indications of credit related impairment, management analyzes future expected cash flows to determine if any credit related impairment is evident. Estimated cash flows are determined using management's best estimate of future cash flows based on specific assumptions. The assumptions used to determine the cash flows were based on estimates of loss severity and credit default probabilities. Management reviews reports from credit rating agencies and public filings of issuers. The credit related impairment was related to one corporate debt security with a book balance of $0.1 million that experienced declines in its financial performance associated with the utilities industry. This corporate debt security had a non-credit related impairment of approximately $6,000 . Non-credit related other-than-temporary impairment losses recognized in other comprehensive income totaled zero in 2018 , zero in 2017 , and $6,000 in 2016 . The impairment losses in 2016 were related to one available for sale corporate bond security, described above, which had original amortized cost of $0.1 million . At December 31, 2018 and 2017 the carrying value of pledged securities totaled $289.7 million and $412.2 million , respectively. Gross realized gains on sales of securities were $0.1 million , $1.4 million and $3.6 million for the years ended December 31, 2018 , 2017 and 2016 , respectively. Gross realized losses were $1.9 million , $0.1 million and $53,000 for the years ended December 31, 2018 , 2017 and 2016 . The tax applicable to these transactions amounted to $(0.4) million , $0.5 million , and $1.3 million for 2018 , 2017 and 2016 , respectively. Proceeds from sales of securities classified as available for sale amounted to $114.5 million , $148.0 million and $191.0 million for the years ended December 31, 2018 , 2017 and 2016 , respectively. Net unrealized losses on available for sale securities included in accumulated other comprehensive income (loss) ("AOCI"), net of applicable income taxes, totaled $7.1 million at December 31, 2018 . At December 31, 2017 net unrealized losses included in AOCI, net of applicable income taxes, totaled $1.6 million . During 2018 and 2017 net gains, net of tax, reclassified out of AOCI into earnings totaled $0.1 million and $0.9 million , respectively. At December 31, 2018 , First Guaranty's exposure to investment securities issuers that exceeded 10% of shareholders' equity as follows: December 31, 2018 (in thousands) Amortized Cost Fair Value Federal Home Loan Bank (FHLB) 42,398 40,882 Federal Home Loan Mortgage Corporation (Freddie Mac-FHLMC) 47,577 46,399 Federal National Mortgage Association (Fannie Mae-FNMA) 94,193 90,973 Federal Farm Credit Bank (FFCB) 114,276 110,271 Total $ 298,444 $ 288,525

Loans

Loans	12 Months Ended
	Dec. 31, 2018
Receivables [Abstract]
Loans	Loans The following table summarizes the components of First Guaranty's loan portfolio as of December 31, 2018 and December 31, 2017 : December 31, 2018 December 31, 2017 (in thousands except for %) Balance As % of Category Balance As % of Category Real Estate: Construction & land development $ 124,644 10.1 % $ 112,603 9.8 % Farmland 18,401 1.5 % 25,691 2.2 % 1- 4 Family 172,760 14.1 % 158,733 13.8 % Multifamily 42,918 3.5 % 16,840 1.4 % Non-farm non-residential 586,263 47.7 % 530,293 46.1 % Total Real Estate 944,986 76.9 % 844,160 73.3 % Non-Real Estate: Agricultural 23,108 1.9 % 21,514 1.9 % Commercial and industrial 200,877 16.4 % 230,638 20.0 % Consumer and other 59,443 4.8 % 55,185 4.8 % Total Non-Real Estate 283,428 23.1 % 307,337 26.7 % Total Loans Before Unearned Income 1,228,414 100.0 % 1,151,497 100.0 % Unearned income (3,146 ) (2,483 ) Total Loans Net of Unearned Income $ 1,225,268 $ 1,149,014 The following table summarizes fixed and floating rate loans by contractual maturity, excluding nonaccrual loans, as of December 31, 2018 and December 31, 2017 unadjusted for scheduled principal payments, prepayments, or repricing opportunities. The average life of the loan portfolio may be substantially less than the contractual terms when these adjustments are considered. December 31, 2018 December 31, 2017 (in thousands) Fixed Floating Total Fixed Floating Total One year or less $ 108,160 $ 80,895 $ 189,055 $ 89,383 $ 75,361 $ 164,744 One to five years 393,344 287,737 681,081 390,333 251,135 641,468 Five to 15 years 118,715 86,779 205,494 124,215 70,273 194,488 Over 15 years 85,611 58,430 144,041 70,366 67,881 138,247 Subtotal $ 705,830 $ 513,841 1,219,671 $ 674,297 $ 464,650 1,138,947 Nonaccrual loans 8,743 12,550 Total Loans Before Unearned Income 1,228,414 1,151,497 Unearned income (3,146 ) (2,483 ) Total Loans Net of Unearned Income $ 1,225,268 $ 1,149,014 As of December 31, 2018 , $27.7 million of floating rate loans were at their interest rate floor. At December 31, 2017 , $95.4 million of floating rate loans were at their interest rate floor. Nonaccrual loans have been excluded from these totals. The following tables present the age analysis of past due loans at December 31, 2018 and December 31, 2017 : As of December 31, 2018 (in thousands) 30-89 Days Past Due 90 Days or Greater Past Due Total Past Due Current Total Loans Recorded Investment 90 Days Accruing Real Estate: Construction & land development $ 936 $ 311 $ 1,247 $ 123,397 $ 124,644 $ — Farmland — 1,293 1,293 17,108 18,401 — 1- 4 family 4,333 2,272 6,605 166,155 172,760 26 Multifamily 648 — 648 42,270 42,918 — Non-farm non-residential 4,897 864 5,761 580,502 586,263 — Total Real Estate 10,814 4,740 15,554 929,432 944,986 26 Non-Real Estate: Agricultural 528 3,651 4,179 18,929 23,108 — Commercial and industrial 742 370 1,112 199,765 200,877 53 Consumer and other 537 127 664 58,779 59,443 66 Total Non-Real Estate 1,807 4,148 5,955 277,473 283,428 119 Total Loans Before Unearned Income $ 12,621 $ 8,888 $ 21,509 $ 1,206,905 1,228,414 $ 145 Unearned income (3,146 ) Total Loans Net of Unearned Income $ 1,225,268 As of December 31, 2017 (in thousands) 30-89 Days Past Due 90 Days or Greater Past Due Total Past Due Current Total Loans Recorded Investment 90 Days Accruing Real Estate: Construction & land development $ 95 $ 371 $ 466 $ 112,137 $ 112,603 $ — Farmland 175 65 240 25,451 25,691 — 1- 4 family 1,481 1,953 3,434 155,299 158,733 — Multifamily — — — 16,840 16,840 — Non-farm non-residential 1,006 3,758 4,764 525,529 530,293 — Total Real Estate 2,757 6,147 8,904 835,256 844,160 — Non-Real Estate: Agricultural 239 1,537 1,776 19,738 21,514 41 Commercial and industrial 630 5,624 6,254 224,384 230,638 798 Consumer and other 463 81 544 54,641 55,185 — Total Non-Real Estate 1,332 7,242 8,574 298,763 307,337 839 Total Loans Before Unearned Income $ 4,089 $ 13,389 $ 17,478 $ 1,134,019 1,151,497 $ 839 Unearned income (2,483 ) Total Loans Net of Unearned Income $ 1,149,014 The tables above include $8.7 million and $12.6 million of nonaccrual loans for December 31, 2018 and 2017 , respectively. See the tables below for more detail on nonaccrual loans. The following is a summary of nonaccrual loans by class at the dates indicated: As of December 31, (in thousands) 2018 2017 Real Estate: Construction & land development $ 311 $ 371 Farmland 1,293 65 1- 4 family 2,246 1,953 Multifamily — — Non-farm non-residential 864 3,758 Total Real Estate 4,714 6,147 Non-Real Estate: Agricultural 3,651 1,496 Commercial and industrial 317 4,826 Consumer and other 61 81 Total Non-Real Estate 4,029 6,403 Total Nonaccrual Loans $ 8,743 $ 12,550 The following table identifies the credit exposure of the loan portfolio, including loans acquired with deteriorated credit quality, by specific credit ratings as of the dates indicated: As of December 31, 2018 As of December 31, 2017 (in thousands) Pass Special Mention Substandard Doubtful Total Pass Special Mention Substandard Doubtful Total Real Estate: Construction & land development $ 116,062 $ 5,698 $ 2,884 $ — $ 124,644 $ 108,291 $ 125 $ 4,187 $ — $ 112,603 Farmland 13,151 3,888 1,362 — 18,401 25,030 569 92 — 25,691 1- 4 family 160,581 2,815 9,364 — 172,760 149,428 1,856 7,449 — 158,733 Multifamily 35,554 — 7,364 — 42,918 9,366 639 6,835 — 16,840 Non-farm non-residential 564,993 2,888 17,859 523 586,263 511,239 2,490 16,564 — 530,293 Total Real Estate 890,341 15,289 38,833 523 944,986 803,354 5,679 35,127 — 844,160 Non-Real Estate: Agricultural 19,050 43 4,015 — 23,108 19,050 995 1,469 — 21,514 Commercial and industrial 186,176 10,930 3,771 — 200,877 201,962 19,187 4,929 4,560 230,638 Consumer and other 59,119 151 173 — 59,443 48,225 68 6,892 — 55,185 Total Non-Real Estate 264,345 11,124 7,959 — 283,428 269,237 20,250 13,290 4,560 307,337 Total Loans Before Unearned Income $ 1,154,686 $ 26,413 $ 46,792 $ 523 1,228,414 $ 1,072,591 $ 25,929 $ 48,417 $ 4,560 1,151,497 Unearned income (3,146 ) (2,483 ) Total Loans Net of Unearned Income $ 1,225,268 $ 1,149,014 Purchased Impaired Loans As part of the acquisition of Premier Bancshares, Inc. on June 16, 2017 , First Guaranty purchased credit impaired loans for which there was, at acquisition, evidence of deterioration of credit quality since their origination and it was probable, at acquisition, that all contractually required payments would not be collected. The carrying amount of those loans is as follows at December 31, 2018 and 2017 . (in thousands) As of December 31, 2018 As of December 31, 2017 Real Estate: Construction & land development $ — $ 1,135 Farmland 1 8 1- 4 family 48 50 Multifamily — — Non-farm non-residential 2,301 2,148 Total Real Estate 2,350 3,341 Non-Real Estate: Agricultural — — Commercial and industrial 909 1,017 Consumer and other — — Total Non-Real Estate 909 1,017 Total $ 3,259 $ 4,358 For those purchased loans disclosed above, there was no allowance for loan losses at December 31, 2018 or December 31, 2017 . Where First Guaranty can reasonably estimate the cash flows expected to be collected on the loans, a portion of the purchase discount is allocated to an accretable yield adjustment based upon the present value of the future estimated cash flows versus the current carrying value of the loan and the accretable yield portion is being recognized as interest income over the remaining life of the loan. Where First Guaranty cannot reasonably estimate the cash flows expected to be collected on the loans, it has decided to account for those loans using the cost recovery method of income recognition. As such, no portion of a purchase discount adjustment has been determined to meet the definition of an accretable yield adjustment on those loans accounted for using the cost recovery method. If, in the future, cash flows from the borrower(s) can be reasonably estimated, a portion of the purchase discount would be allocated to an accretable yield adjustment based upon the present value of the future estimated cash flows versus the current carrying value of the loan and the accretable yield portion would be recognized as interest income over the remaining life of the loan. Until such accretable yield can be calculated, under the cost recovery method of income recognition, all payments will be used to reduce the carrying value of the loan and no income will be recognized on the loan until the carrying value is reduced to zero. The accretable yield, or income expected to be collected, on the purchased loans above is as follows for the years ended December 31, 2018 and 2017 . (in thousands) Year Ended December 31, 2018 Year Ended December 31, 2017 Balance, beginning of period $ 1,031 $ — Acquisition accretable yield — 1,195 Accretion (418 ) (164 ) Net transfers from nonaccretable difference to accretable yield — — Balance, end of period $ 613 $ 1,031

Allowance for Loan Losses

Allowance for Loan Losses	12 Months Ended
	Dec. 31, 2018
Allowance for Loan Losses [Abstract]
Allowance for Loan Losses	Allowance for Loan Losses A summary of changes in the allowance for loan losses, by loan type, for the years ended December 31, 2018 , 2017 and 2016 are as follows: As of December 31, 2018 2017 (in thousands) Beginning Allowance (12/31/17) Charge-offs Recoveries Provision Ending Allowance (12/31/18) Beginning Allowance (12/31/16) Charge-offs Recoveries Provision Ending Allowance (12/31/17) Real Estate: Construction & land development $ 628 $ — $ 3 $ (50 ) $ 581 $ 1,232 $ — $ 43 $ (647 ) $ 628 Farmland 5 — — 36 41 19 — — (14 ) 5 1- 4 family 1,078 (99 ) 90 (158 ) 911 1,204 (33 ) 92 (185 ) 1,078 Multifamily 994 — 20 304 1,318 591 — 40 363 994 Non-farm non-residential 2,811 (404 ) 89 2,275 4,771 3,451 (1,291 ) 85 566 2,811 Total Real Estate 5,516 (503 ) 202 2,407 7,622 6,497 (1,324 ) 260 83 5,516 Non-Real Estate: Agricultural 187 (300 ) 26 426 339 74 (162 ) 138 137 187 Commercial and industrial 2,377 (179 ) 1,642 (1,931 ) 1,909 3,543 (3,629 ) 30 2,433 2,377 Consumer and other 1,125 (907 ) 216 457 891 972 (1,247 ) 223 1,177 1,125 Unallocated 20 — — (5 ) 15 28 — — (8 ) 20 Total Non-Real Estate 3,709 (1,386 ) 1,884 (1,053 ) 3,154 4,617 (5,038 ) 391 3,739 3,709 Total $ 9,225 $ (1,889 ) $ 2,086 $ 1,354 $ 10,776 $ 11,114 $ (6,362 ) $ 651 $ 3,822 $ 9,225 As of December 31, 2016 (in thousands) Beginning Allowance (12/31/15) Charge-offs Recoveries Provision Ending Allowance (12/31/16) Real Estate: Construction & land development $ 962 $ — $ 4 $ 266 $ 1,232 Farmland 54 — — (35 ) 19 1- 4 family 1,771 (244 ) 45 (368 ) 1,204 Multifamily 557 — 401 (367 ) 591 Non-farm non-residential 3,298 (1,373 ) 16 1,510 3,451 Total Real Estate 6,642 (1,617 ) 466 1,006 6,497 Non-Real Estate: Agricultural 16 (83 ) 113 28 74 Commercial and industrial 2,527 (579 ) 146 1,449 3,543 Consumer and other 230 (635 ) 183 1,194 972 Unallocated — — — 28 28 Total Non-Real Estate 2,773 (1,297 ) 442 2,699 4,617 Total $ 9,415 $ (2,914 ) $ 908 $ 3,705 $ 11,114 Negative provisions are caused by changes in the composition and credit quality of the loan portfolio. The result is an allocation of the loan loss reserve from one category to another. A summary of the allowance and loans, including loans acquired with deteriorated credit quality, individually and collectively evaluated for impairment are as follows: As of December 31, 2018 (in thousands) Allowance Individually Evaluated for Impairment Allowance Individually Evaluated for Purchased Credit-Impairment Allowance Collectively Evaluated for Impairment Total Allowance for Credit Losses Loans Individually Evaluated for Impairment Loans Individually Evaluated for Purchased Credit-Impairment Loans Collectively Evaluated for Impairment Total Loans before Unearned Income Real Estate: Construction & land development $ 38 $ — $ 543 $ 581 $ 304 $ — $ 124,340 $ 124,644 Farmland — — 41 41 552 1 17,848 18,401 1- 4 family — — 911 911 631 48 172,081 172,760 Multifamily — — 1,318 1,318 — — 42,918 42,918 Non-farm non-residential 1,152 — 3,619 4,771 4,881 2,301 579,081 586,263 Total Real Estate 1,190 — 6,432 7,622 6,368 2,350 936,268 944,986 Non-Real Estate: Agricultural — — 339 339 2,983 — 20,125 23,108 Commercial and industrial 110 — 1,799 1,909 1,088 909 198,880 200,877 Consumer and other — — 891 891 — — 59,443 59,443 Unallocated — — 15 15 — — — — Total Non-Real Estate 110 — 3,044 3,154 4,071 909 278,448 283,428 Total $ 1,300 $ — $ 9,476 $ 10,776 $ 10,439 $ 3,259 $ 1,214,716 $ 1,228,414 Unearned Income (3,146 ) Total Loans Net of Unearned Income $ 1,225,268 As of December 31, 2017 (in thousands) Allowance Individually Evaluated for Impairment Allowance Individually Evaluated for Purchased Credit-Impairment Allowance Collectively Evaluated for Impairment Total Allowance for Credit Losses Loans Individually Evaluated for Impairment Loans Individually Evaluated for Purchased Credit-Impairment Loans Collectively Evaluated for Impairment Total Loans before Unearned Income Real Estate: Construction & land development $ — $ — $ 628 $ 628 $ 334 $ 1,135 $ 111,134 $ 112,603 Farmland — — 5 5 — 8 25,683 25,691 1- 4 family — — 1,078 1,078 — 50 158,683 158,733 Multifamily — — 994 994 — — 16,840 16,840 Non-farm non-residential 236 — 2,575 2,811 8,990 2,148 519,155 530,293 Total Real Estate 236 — 5,280 5,516 9,324 3,341 831,495 844,160 Non-Real Estate: Agricultural 66 — 121 187 861 — 20,653 21,514 Commercial and industrial 565 — 1,812 2,377 5,731 1,017 223,890 230,638 Consumer and other — — 1,125 1,125 — — 55,185 55,185 Unallocated — — 20 20 — — — — Total Non-Real Estate 631 — 3,078 3,709 6,592 1,017 299,728 307,337 Total $ 867 $ — $ 8,358 $ 9,225 $ 15,916 $ 4,358 $ 1,131,223 $ 1,151,497 Unearned Income (2,483 ) Total Loans Net of Unearned Income $ 1,149,014 As of December 31, 2018 , 2017 and 2016 , First Guaranty had loans totaling $8.7 million , $12.6 million and $21.7 million , respectively, not accruing interest. As of December 31, 2018 , 2017 and 2016 , First Guaranty had loans past due 90 days or more and still accruing interest totaling $0.1 million , $0.8 million and $0.2 million , respectively. The average outstanding balance of nonaccrual loans in 2018 was $8.9 million compared to $17.3 million in 2017 and $22.5 million in 2016 . As of December 31, 2018 , First Guaranty has no outstanding commitments to advance additional funds in connection with impaired loans. The following is a summary of impaired loans, excluding loans acquired with deteriorated credit quality, by class at December 31, 2018 : As of December 31, 2018 (in thousands) Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Interest Income Recognized Interest Income Cash Basis Impaired Loans with no related allowance: Real Estate: Construction & land development $ — $ — $ — $ — $ — $ — Farmland — — — — — — 1- 4 family 631 631 — 626 13 — Multifamily — — — — — — Non-farm non-residential 523 523 — 536 33 34 Total Real Estate 1,154 1,154 — 1,162 46 34 Non-Real Estate: Agricultural 3,535 3,613 — 3,583 173 272 Commercial and industrial — — — — — — Consumer and other — — — — — — Total Non-Real Estate 3,535 3,613 — 3,583 173 272 Total Impaired Loans with no related allowance 4,689 4,767 — 4,745 219 306 Impaired Loans with an allowance recorded: Real estate: Construction & land development — — — — — — Farmland — — — — — — 1- 4 family — — — — — — Multifamily — — — — — — Non-farm non-residential 3,070 3,070 1,150 3,104 139 139 Total Real Estate 3,070 3,070 1,150 3,104 139 139 Non-Real Estate: Agricultural — — — — — — Commercial and industrial 1,088 1,088 110 1,115 55 64 Consumer and other — — — — — — Total Non-Real Estate 1,088 1,088 110 1,115 55 64 Total Impaired Loans with an allowance recorded 4,158 4,158 1,260 4,219 194 203 Total Impaired Loans $ 8,847 $ 8,925 $ 1,260 $ 8,964 $ 413 $ 509 The following is a summary of impaired loans, excluding loans acquired with deteriorated credit quality, by class at December 31, 2017 : As of December 31, 2017 (in thousands) Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Interest Income Recognized Interest Income Cash Basis Impaired Loans with no related allowance: Real Estate: Construction & land development $ — $ — $ — $ — $ — $ — Farmland — — — — — — 1- 4 family — — — — — — Multifamily — — — — — — Non-farm non-residential 5,771 5,771 — 5,933 248 279 Total Real Estate 5,771 5,771 — 5,933 248 279 Non-Real Estate: Agricultural — — — — — — Commercial and industrial — — — — — — Consumer and other — — — — — — Total Non-Real Estate — — — — — — Total Impaired Loans with no related allowance 5,771 5,771 — 5,933 248 279 Impaired Loans with an allowance recorded: Real estate: Construction & land development — — — — — — Farmland — — — — — — 1- 4 family — — — — — — Multifamily — — — — — — Non-farm non-residential 3,219 3,570 236 3,555 183 127 Total Real Estate 3,219 3,570 236 3,555 183 127 Non-Real Estate: Agricultural 861 920 66 1,117 70 17 Commercial and industrial 5,731 9,062 565 8,121 65 84 Consumer and other — — — — — — Total Non-Real Estate 6,592 9,982 631 9,238 135 101 Total Impaired Loans with an allowance recorded 9,811 13,552 867 12,793 318 228 Total Impaired Loans $ 15,582 $ 19,323 $ 867 $ 18,726 $ 566 $ 507 Troubled Debt Restructurings A Troubled Debt Restructuring ("TDR") is considered such if the lender 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 modifications to First Guaranty's TDRs were concessions on either the interest rate charged or the amortization. The effect of the modifications to First Guaranty was a reduction in interest income. These loans have an allocated reserve in First Guaranty's allowance for loan losses. First Guaranty has not restructured any loans that are considered TDRs in the years ended December 31, 2018 and 2017 . The following table is an age analysis of TDRs as of December 31, 2018 and December 31, 2017 : December 31, 2018 December 31, 2017 Accruing Loans Accruing Loans (in thousands) Current 30-89 Days Past Due Nonaccrual Total TDRs Current 30-89 Days Past Due Nonaccrual Total TDRs Real Estate: Construction & land development $ — $ — $ 304 $ 304 $ — $ — $ 334 $ 334 Farmland — — — — — — — — 1- 4 family — — — — — — — — Multifamily — — — — — — — — Non-farm non-residential 1,288 — — 1,288 2,138 — — 2,138 Total Real Estate 1,288 — 304 1,592 2,138 — 334 2,472 Non-Real Estate: Agricultural — — — — — — — — Commercial and industrial — — — — — — — — Consumer and other — — — — — — — — Total Non-Real Estate — — — — — — — — Total $ 1,288 $ — $ 304 $ 1,592 $ 2,138 $ — $ 334 $ 2,472 The following table discloses TDR activity for the twelve months ended December 31, 2018 . Trouble Debt Restructured Loans Activity Twelve Months Ended December 31, 2018 (in thousands) Beginning balance (December 31, 2017) New TDRs Charge-offs post-modification Transferred to ORE Paydowns Construction to permanent financing Restructured to market terms Other adjustments Ending balance (December 31, 2018) Real Estate: Construction & land development $ 334 $ — $ — $ — $ (30 ) $ — $ — $ — $ 304 Farmland — — — — — — — — — 1- 4 family — — — — — — — — — Multifamily — — — — — — — — — Non-farm non-residential 2,138 — — — (850 ) — — — 1,288 Total Real Estate 2,472 — — — (880 ) — — — 1,592 Non-Real Estate: Agricultural — — — — — — — — — Commercial and industrial — — — — — — — — — Consumer and other — — — — — — — — — Total Non-Real Estate — — — — — — — — — Total Impaired Loans with no related allowance $ 2,472 $ — $ — $ — $ (880 ) $ — $ — $ — $ 1,592 There were no commitments to lend additional funds to debtors whose terms have been modified in a troubled debt restructuring at December 31, 2018 .

Premises and Equipment

Premises and Equipment	12 Months Ended
	Dec. 31, 2018
Property, Plant and Equipment [Abstract]
Premises and Equipment	Premises and Equipment The components of premises and equipment at December 31, 2018 and 2017 are as follows: (in thousands) December 31, 2018 December 31, 2017 Land $ 12,875 $ 12,875 Bank premises 33,457 32,687 Furniture and equipment 25,453 24,305 Construction in progress 2,046 382 Acquired value 73,831 70,249 Less: accumulated depreciation 34,136 32,229 Net book value $ 39,695 $ 38,020 Depreciation expense amounted to $2.1 million , $1.8 million and $1.7 million for 2018 , 2017 and 2016 , respectively. Interest cost capitalized as a construction cost was $54,000 for 2018 and $0 for 2017.

Goodwill and Other Intangible A

Goodwill and Other Intangible Assets	12 Months Ended
	Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Other Intangible Assets	Goodwill and Other Intangible Assets Goodwill and intangible assets deemed to have indefinite lives are no longer amortized, but are subject to impairment testing. Other intangible assets continue to be amortized over their useful lives. Goodwill represents the purchase price over the fair value of net assets acquired from the Homestead Bancorp in 2007 and Premier Bancshares, Inc. in 2017. No impairment charges have been recognized since acquisition. Goodwill totaled $3.5 million at December 31, 2018 and 2017 , respectively. The following table summarizes intangible assets subject to amortization. December 31, 2018 December 31, 2017 (in thousands) Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Core deposit intangibles $ 12,053 $ 9,349 $ 2,704 $ 12,053 $ 8,804 $ 3,249 Loan servicing assets 1,441 617 824 1,373 198 1,175 Total $ 13,494 $ 9,966 $ 3,528 $ 13,426 $ 9,002 $ 4,424 The core deposits intangible reflect the value of deposit relationships, including the beneficial rates, which arose from acquisitions. The weighted-average amortization period remaining for the core deposit intangibles is 9.5 years . Amortization expense relating to purchase accounting intangibles totaled $0.5 million , $0.4 million , and $0.3 million for the years ended December 31, 2018 , 2017 , and 2016 , respectively. Amortization expense of the core deposit intangible assets for the next five years is as follows: For the Years Ended Estimated Amortization Expense (in thousands) December 31, 2019 $ 361 December 31, 2020 $ 361 December 31, 2021 $ 293 December 31, 2022 $ 225 December 31, 2023 $ 225

Other Real Estate

Other Real Estate	12 Months Ended
	Dec. 31, 2018
Real Estate [Abstract]
Other Real Estate	Other Real Estate Other real estate owned consists of the following at the dates indicated: (in thousands) December 31, 2018 December 31, 2017 Real Estate Owned Acquired by Foreclosure: Residential $ 120 $ 23 Construction & land development 241 304 Non-farm non-residential 777 954 Total Other Real Estate Owned and Foreclosed Property $ 1,138 $ 1,281

Deposits

Deposits	12 Months Ended
	Dec. 31, 2018
Deposits [Abstract]
Deposits	Deposits A schedule of maturities of all time deposits are as follows: (in thousands) December 31, 2018 2019 $ 417,005 2020 106,655 2021 28,268 2022 45,355 2023 and thereafter 83,506 Total $ 680,789 The table above includes, for December 31, 2018 , brokered deposits totaling $37.4 million . The aggregate amount of jumbo time deposits, each with a minimum denomination of $250,000 totaled $301.8 million and $266.2 million at December 31, 2018 and 2017 , respectively.

Borrowings

Borrowings	12 Months Ended
	Dec. 31, 2018
Debt Disclosure [Abstract]
Borrowings	Borrowings Short-term borrowings are summarized as follows: (in thousands) December 31, 2018 December 31, 2017 Federal Home Loan Bank advances $ — $ 15,500 Line of credit — — Total short-term borrowings $ — $ 15,500 First Guaranty maintains borrowing relationships with other financial institutions as well as the Federal Home Loan Bank on a short and long-term basis to meet liquidity needs. First Guaranty had no short-term borrowings outstanding at December 31, 2018 compared to $15.5 million outstanding at December 31, 2017 . First Guaranty has an available line of credit of $6.5 million , with no outstanding balance at December 31, 2018 . Available lines of credit totaled $216.4 million at December 31, 2018 and $150.8 million at December 31, 2017 . The following schedule provides certain information about First Guaranty's short-term borrowings for the periods indicated: December 31, (in thousands except for %) 2018 2017 2016 Outstanding at year end $ — $ 15,500 $ 6,500 Maximum month-end outstanding $ 37,000 $ 28,000 $ 25,000 Average daily outstanding $ 7,119 $ 5,833 $ 8,775 Weighted average rate during the year 2.21 % 1.06 % 0.85 % Weighted average rate at year end — % 1.51 % 0.65 % Long-term debt is summarized as follows: Senior long-term debt with a commercial bank, priced at floating 3-month LIBOR plus 250 basis points (4.92%) , totaled $19.8 million at December 31, 2018 and $22.8 million at December 31, 2017 . First Guaranty pays $735,294 principal plus interest quarterly . This loan was originated in December 2015 and has a contractual maturity date of December 22, 2020 . This long-term debt is secured by a pledge of 85% ( 4,823,899 shares) of First Guaranty's interest in First Guaranty Bank (a wholly owned subsidiary). First Guaranty modified its existing senior long-term debt in the second quarter of 2017. The modification increased the principal balance to $25.0 million with new net proceeds of $3.8 million . The existing amortization terms and rates remained the same. The $3.8 million in additional proceeds were contributed to First Guaranty Bank for future growth. Junior subordinated debt, priced at Wall Street Journal Prime plus 75 basis points (4.00%) , totaled $14.7 million at December 31, 2018 and December 31, 2017 . First Guaranty pays interest semi-annually for the Fixed Interest Rate Period and quarterly for the Floating Interest Rate Period. The Note is unsecured and ranks junior in right of payment to any senior indebtedness and obligations to general and secured creditors. The Note was originated in December 2015 and is scheduled to mature on December 21, 2025 . Subject to limited exceptions, First Guaranty cannot repay the Note until after December 21, 2020. The Note qualifies for treatment as Tier 2 capital for regulatory capital purposes. First Guaranty maintains a revolving line of credit for $6.5 million with an availability of $6.5 million at December 31, 2018 . This line of credit is secured by a pledge of 13.2% ( 735,745 shares) of First Guaranty's interest in First Guaranty Bank (a wholly owned subsidiary) and is priced at 5.50% . At December 31, 2018 , letters of credit issued by the FHLB totaling $344.3 million were outstanding and carried as off-balance sheet items, all of which expire in 2019 . At December 31, 2017 , letters of credit issued by the FHLB totaling $294.2 million were outstanding and carried as off-balance sheet items, all of which expired in 2018 . The letters of credit are solely used for pledging towards public fund deposits. The FHLB has a blanket lien on substantially all of the loans in First Guaranty's portfolio which is used to secure borrowing availability from the FHLB. First Guaranty has obtained a subordination agreement from the FHLB on First Guaranty's farmland, agricultural, and commercial and industrial loans. These loans are available to be pledged for additional reserve liquidity. As of December 31, 2018 obligations on senior long-term debt and junior subordinated debentures totaled $34.5 million . The scheduled maturities are as follows: (in thousands) Senior Long-term Debt Junior Subordinated Debentures 2019 $ 2,941 $ — 2020 16,912 — 2021 — — 2022 — — 2023 — — 2024 and thereafter — 15,000 Subtotal $ 19,853 $ 15,000 Debt issuance costs (15 ) (300 ) Total $ 19,838 $ 14,700

Capital Requirements

Capital Requirements	12 Months Ended
	Dec. 31, 2018
Banking and Thrift [Abstract]
Capital Requirements	Capital Requirements First Guaranty Bank is subject to various regulatory capital requirements administered by federal and state banking agencies. Failure to meet minimum capital requirements can initiate certain mandatory and possibly additional discretionary actions that, if undertaken, could have a direct material effect on First Guaranty's financial statements. Under capital adequacy guidelines and the regulatory framework for prompt corrective action, the Bank must meet specific capital guidelines that involve quantitative measures of their assets, liabilities and certain off-balance sheet items as calculated under regulatory accounting practices. The capital amounts and classification are also subject to qualitative judgments by the regulators about components, risk weightings and other factors. Quantitative measures established by regulation to ensure capital adequacy require the Bank to maintain minimum amounts and ratios of total and Tier 1 capital to risk-weighted assets and of Tier 1 capital to average assets. Management believes, as of December 31, 2018 and 2017 , that the Bank met all capital adequacy requirements. In addition to establishing the minimum regulatory capital requirements, the regulations limit capital distributions and certain discretionary bonus payments to management if the institution does not hold a "capital conservation buffer" consisting of 2.5% of common equity Tier 1 capital to risk-weighted asset above the amount necessary to meet its minimum risk-based capital requirements. The capital conservation buffer requirement is being phased in beginning January 1, 2016 at 0.625% of risk-weighted assets and increasing each year until fully implemented at 2.5% on January 1, 2019. For 2018, the capital conservation buffer will be 1.875% of risk-weighted assets. First Guaranty Bank's capital conservation buffer was 4.97% at December 31, 2018 . As of December 31, 2018 , the most recent notification from the Federal Deposit Insurance Corporation categorized the Bank as well capitalized under the regulatory framework for prompt corrective action. To be categorized as well capitalized, an institution must maintain minimum total risk-based, Tier 1 risk-based and Tier 1 leverage ratios as set forth in the following table. There are no conditions or events since the notification that Management believes have changed the Bank's category. First Guaranty Bank's actual capital amounts and ratios as of December 31, 2018 and 2017 are presented in the following table. Actual Minimum Capital Requirements Minimum to be Well Capitalized Under Action Provisions (in thousands except for %) Amount Ratio Amount Ratio Amount Ratio December 31, 2018 Total Risk-based Capital: Consolidated N/A N/A N/A N/A N/A N/A Bank $ 181,618 12.97 % $ 112,055 8.00 % $ 140,069 10.00 % Tier 1 Capital: Consolidated N/A N/A N/A N/A N/A N/A Bank $ 170,842 12.20 % $ 84,041 6.00 % $ 112,055 8.00 % Tier 1 Leverage Capital: Consolidated N/A N/A N/A N/A N/A N/A Bank $ 170,842 9.79 % $ 69,822 4.00 % $ 87,277 5.00 % Common Equity Tier One Capital: Consolidated N/A N/A N/A N/A N/A N/A Bank $ 170,842 12.20 % $ 63,031 4.50 % $ 91,045 6.50 % December 31, 2017 Total Risk-based Capital: Consolidated $ 164,545 12.14 % $ 108,427 8.00 % N/A N/A Bank $ 176,398 13.07 % $ 107,961 8.00 % $ 134,951 10.00 % Tier 1 Capital: Consolidated $ 140,320 10.35 % $ 81,320 6.00 % N/A N/A Bank $ 167,173 12.39 % $ 80,971 6.00 % $ 107,961 8.00 % Tier 1 Leverage Capital: Consolidated $ 140,320 8.27 % $ 67,899 4.00 % N/A N/A Bank $ 167,173 9.88 % $ 67,709 4.00 % $ 84,636 5.00 % Common Equity Tier One Capital: Consolidated $ 140,320 10.35 % $ 60,990 4.50 % N/A N/A Bank $ 167,173 12.39 % $ 60,728 4.50 % $ 87,718 6.50 %

Dividend Restrictions

Dividend Restrictions	12 Months Ended
	Dec. 31, 2018
Dividend Restrictions [Abstract]
Dividend Restrictions	Dividend Restrictions The Federal Reserve Bank ("FRB") has stated that, generally, a bank holding company should not maintain a rate of distributions to shareholders unless its available net income has been sufficient to fully fund the distributions, and the prospective rate of earnings retention appears consistent with the bank holding company's capital needs, asset quality and overall financial condition. As a Louisiana corporation, First Guaranty is restricted under the Louisiana corporate law from paying dividends under certain conditions. First Guaranty Bank may not pay dividends or distribute capital assets if it is in default on any assessment due to the FDIC. First Guaranty Bank is also subject to regulations that impose minimum regulatory capital and minimum state law earnings requirements that affect the amount of cash available for distribution. In addition, under the Louisiana Banking Law, dividends may not be paid if it would reduce the unimpaired surplus below 50% of outstanding capital stock in any year. The Bank is restricted under applicable laws in the payment of dividends to an amount equal to current year earnings plus undistributed earnings for the immediately preceding year, unless prior permission is received from the Commissioner of Financial Institutions for the State of Louisiana. Dividends payable by the Bank in 2019 without permission will be limited to 2019 earnings plus the undistributed earnings of $4.3 million from 2018 . Accordingly, at January 1, 2019 , $165.6 million of First Guaranty's equity in the net assets of the Bank was restricted. In addition, dividends paid by the Bank to First Guaranty would be prohibited if the effect thereof would cause the Bank's capital to be reduced below applicable minimum capital requirements.

Related Party Transactions

Related Party Transactions	12 Months Ended
	Dec. 31, 2018
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions In the normal course of business, First Guaranty and its subsidiary, First Guaranty Bank, have loans, deposits and other transactions with its executive officers, directors, affiliates and certain business organizations and individuals with which such persons are associated. These transactions are completed with terms no less favorable than current market rates. An analysis of the activity of loans made to such borrowers during the year ended December 31, 2018 and 2017 follows: December 31, (in thousands) 2018 2017 Balance, beginning of year $ 82,918 $ 58,279 Net (Decrease) Increase (19,011 ) 24,639 Balance, end of year $ 63,907 $ 82,918 Unfunded commitments to First Guaranty and Bank directors and executive officers totaled $8.6 million and $17.5 million at December 31, 2018 and 2017 , respectively. At December 31, 2018 First Guaranty and the Bank had deposits from directors and executives totaling $37.8 million . There were no participations in loans purchased from affiliated financial institutions included in First Guaranty's loan portfolio in 2018 or 2017 . During the years ended 2018 , 2017 and 2016 , First Guaranty paid approximately $0.3 million , $0.4 million and $0.3 million , respectively, for printing services and supplies and office furniture and equipment to Champion Industries, Inc., of which Mr. Marshall T. Reynolds, the Chairman of First Guaranty's Board of Directors, is President, Chief Executive Officer, Chairman of the Board of Directors and a major shareholder of Champion. On December 21, 2015, First Guaranty issued a $15.0 million subordinated note (the "Note") to Edgar Ray Smith III, a director of First Guaranty. The Note is for a ten -year term (non-callable for first five years) and will bear interest at a fixed annual rate of 4.0% for the first five years of the term and then adjust to a floating rate based on the Prime Rate as reported by the Wall Street Journal plus 75 basis points for the period of time after the fifth year until redemption or maturity. First Guaranty paid interest of $0.6 million in 2018 and 2017 for this note. During the years ended 2018 , 2017 and 2016 , First Guaranty paid approximately $0.2 million , $6,000 and $0.1 million , respectively, for the purchase and maintenance of First Guaranty's automobiles to subsidiaries of Hood Automotive Group, of which William K. Hood, a director of First Guaranty, is President. During the years ended 2018 , 2017 and 2016 , First Guaranty paid approximately $0.7 million , $0.2 million and $0.3 million , respectively, for architectural services in relation to bank branches to Gasaway Gasaway Bankston Architects, of which bank subsidiary board member Andrew B. Gasaway is part owner. During the year ended December 31, 2018 , First Guaranty paid approximately $0.2 million to Centurion Insurance, an insurance brokerage agency, to bind coverage at market terms for property casualty insurance and health insurance. First Guaranty owns a 50% interest in Centurion and accounts for this investment under the equity method.

Employee Benefit Plans

Employee Benefit Plans	12 Months Ended
	Dec. 31, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Employee Benefit Plans	Employee Benefit Plans First Guaranty has an employee savings plan to which employees, who meet certain service requirements, may defer 1% to 20% of their base salaries, 6% of which may be matched up to 100% , at its sole discretion. Contributions to the savings plan were $292,000 , $240,000 and $191,000 in 2018 , 2017 and 2016 , respectively. First Guaranty has an Employee Stock Ownership Plan ("ESOP") which was frozen in 2010. No contributions were made to the ESOP for the years 2018 , 2017 or 2016 . As of December 31, 2018 , the ESOP held 15,530 shares. First Guaranty is in the process of terminating the plan.

Other Expenses

Other Expenses	12 Months Ended
	Dec. 31, 2018
Other Expenses [Abstract]
Other Expenses	Other Expenses The following is a summary of the significant components of other noninterest expense: December 31, (in thousands) 2018 2017 2016 Other noninterest expense: Legal and professional fees $ 2,362 $ 3,049 $ 2,185 Data processing 1,692 1,608 1,259 ATM Fees 1,214 1,161 1,044 Marketing and public relations 1,329 1,205 878 Taxes - sales, capital and franchise 1,066 970 787 Operating supplies 562 496 471 Software expense and amortization 1,119 923 835 Travel and lodging 978 910 710 Telephone 208 167 177 Amortization of core deposits 545 432 320 Donations 380 322 298 Net costs from other real estate and repossessions 186 306 498 Regulatory assessment 941 726 1,005 Other 2,204 1,628 1,599 Total other noninterest expense $ 14,786 $ 13,903 $ 12,066 First Guaranty does not capitalize advertising costs. They are expensed as incurred and are included in other noninterest expense on the Consolidated Statements of Income. Advertising expense was $0.9 million , $0.7 million and $0.6 million for 2018 , 2017 and 2016 , respectively.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Income Taxes	Income Taxes On December 22, 2017, the Tax Cuts and Jobs Act ("TCJA") was signed into law. The TCJA makes broad and complex changes to the U.S. tax code that affected income tax expense in 2017. The TCJA reduces the U.S. federal corporate income tax rate from 35% to 21% beginning January 1, 2018 and also establishes new tax laws that affect 2018. ASC 740 requires a company to record the effects of a tax law change in the period of enactment, however, shortly after the enactment of the TCJA, the SEC staff issued SAB 118, which allows a company to record a provisional amount when it does not have the necessary information available, prepared, or analyzed in reasonable detail to complete its accounting for the change in the tax law. The measurement period ends when the company has obtained, prepared and analyzed the information necessary to finalize its accounting, but cannot extend beyond one year. The following is a summary of the provision for income taxes included in the Consolidated Statements of Income: December 31, (in thousands) 2018 2017 2016 Current $ 3,929 $ 4,638 $ 8,168 Deferred (467 ) 2,761 (1,004 ) Total $ 3,462 $ 7,399 $ 7,164 The difference between income taxes computed by applying the statutory federal income tax rate and the provision for income taxes in the financial statements is reconciled as follows: December 31, (in thousands except for %) 2018 2017 2016 Statutory tax rate 21.0 % 35.0 % 35.0 % Federal income taxes at statutory rate $ 3,712 $ 6,703 $ 7,440 Tax exempt municipal income (166 ) (254 ) (283 ) Other (1) (84 ) 950 7 Total $ 3,462 $ 7,399 $ 7,164 (1) Included in other for the year ended December 31, 2017 is $0.9 million related to the estimated net impact from the remeasurement of deferred tax assets and liabilities as a result of the passage of the Tax Cuts and Jobs Act in December 2017. Deferred taxes are recorded based upon differences between the financial statement and tax basis of assets and liabilities, and available tax credit carry forwards. Temporary differences between the financial statement and tax values of assets and liabilities give rise to deferred taxes. The significant components of deferred taxes classified in First Guaranty's Consolidated Balance Sheets at December 31, 2018 and 2017 are as follows: December 31, (in thousands) 2018 2017 Deferred tax assets: Allowance for loan losses $ 2,159 $ 1,804 Other real estate owned 28 25 Unrealized losses on available for sale securities 1,897 495 Net operating loss 1,374 1,463 Other 456 546 Gross deferred tax assets 5,914 4,333 Deferred tax liabilities: Depreciation and amortization (1,537 ) (1,688 ) Core deposit intangibles (552 ) (662 ) Other (589 ) (566 ) Gross deferred tax liabilities (2,678 ) (2,916 ) Net deferred tax assets $ 3,236 $ 1,417 Net operating loss carryforwards for income tax purposes were $6.5 million as of December 31, 2018 and $7.0 million in 2017 . The carryforwards were acquired in 2017 in the Premier acquisition and expire from 2027 to 2034 , and will be utilized subject to annual Internal Revenue Code Section 382 limitations. ASC 740-10, Income Taxes, clarifies the accounting for uncertainty in income taxes and prescribes a recognition threshold and measurement attribute for the consolidated financial statements recognition and measurement of a tax position taken or expected to be taken in a tax return. First Guaranty does not believe it has any unrecognized tax benefits included in its consolidated financial statements. First Guaranty has not had any settlements in the current period with taxing authorities, nor has it recognized tax benefits as a result of a lapse of the applicable statute of limitations. First Guaranty recognizes interest and penalties accrued related to unrecognized tax benefits, if applicable, in noninterest expense. During the years ended December 31, 2018 , 2017 and 2016 , First Guaranty did not recognize any interest or penalties in its consolidated financial statements, nor has it recorded an accrued liability for interest or penalty payments.

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Off-balance sheet commitments First Guaranty is a party to financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of its customers and to reduce its own exposure to fluctuations in interest rates. These financial instruments include commitments to extend credit and standby and commercial letters of credit. Those instruments involve, to varying degrees, elements of credit and interest rate risk in excess of the amount recognized in the Consolidated Balance Sheets. The contract or notional amounts of those instruments reflect the extent of the involvement in particular classes of financial instruments. The exposure to credit loss in the event of nonperformance by the other party to the financial instrument for commitments to extend credit and standby and commercial letters of credit is represented by the contractual notional amount of those instruments. Unless otherwise noted, collateral or other security is not required to support financial instruments with credit risk. Set forth below is a summary of the notional amounts of the financial instruments with off-balance sheet risk at December 31, 2018 and December 31, 2017 . Contract Amount December 31, 2018 December 31, 2017 (in thousands) Commitments to Extend Credit $ 108,348 $ 78,125 Unfunded Commitments under lines of credit $ 122,212 $ 101,344 Commercial and Standby letters of credit $ 6,912 $ 7,886 Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since commitments may expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. Each customer's creditworthiness is evaluated on a case-by-case basis. The amount of collateral obtained, if deemed necessary upon extension of credit, is based on Management's credit evaluation of the counterpart. Collateral requirements vary but may include accounts receivable, inventory, property, plant and equipment, residential real estate and commercial properties. Standby and commercial letters of credit are conditional commitments to guarantee the performance of a customer to a third party. These guarantees are primarily issued to support public and private borrowing arrangements, including commercial paper, bond financing and similar transactions. The majority of these guarantees are short-term, one year or less; however, some guarantees extend for up to three years . The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loan facilities. Collateral requirements are the same as on-balance sheet instruments and commitments to extend credit. There were no losses incurred on off-balance sheet commitments in 2018 , 2017 or 2016 . First Guaranty currently has two new facilities under construction with total construction commitments of $12.9 million .

Fair Value Measurements

Fair Value Measurements	12 Months Ended
	Dec. 31, 2018
Fair Value Disclosures [Abstract]
Fair Value Measurements	Fair Value Measurements The fair value of a financial instrument is the current amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. A fair value measurement assumes that the transaction to sell the asset or transfer the liability occurs in the principal market for the asset or liability or, in the absence of a principal market, the most advantageous market for the asset or liability. Valuation techniques use certain inputs to arrive at fair value. Inputs to valuation techniques are the assumptions that market participants would use in pricing the asset or liability. They may be observable or unobservable. First Guaranty uses a fair value hierarchy for valuation inputs that gives the highest priority to quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs. The fair value hierarchy is as follows: Level 1 Inputs – Unadjusted quoted market prices in active markets for identical assets or liabilities that the reporting entity has the ability to access at the measurement date. Level 2 Inputs – Inputs other than quoted prices included in Level 1 that are observable for the asset or liability, either directly or indirectly. These might include quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability (such as interest rates, volatilities, prepayment speeds or credit risks) or inputs that are derived principally from or corroborated by market data by correlation or other means. Level 3 Inputs – Unobservable inputs for determining the fair values of assets or liabilities that reflect an entity's own assumptions about the assumptions that market participants would use in pricing the assets or liabilities. A description of the valuation methodologies used for instruments measured at fair value follows, as well as the classification of such instruments within the valuation hierarchy. Securities available for sale. Securities are classified within Level 1 where quoted market prices are available in an active market. Inputs include securities that have quoted prices in active markets for identical assets. If quoted market prices are unavailable, fair value is estimated using quoted prices of securities with similar characteristics, at which point the securities would be classified within Level 2 of the hierarchy. Securities classified Level 3 as of December 31, 2018 includes corporate debt and municipal securities. Impaired loans . Loans are measured for impairment using the methods permitted by ASC Topic 310. Fair value of impaired loans is measured by either the fair value of the collateral if the loan is collateral dependent (Level 2 or Level 3), or the present value of expected future cash flows, discounted at the loan's effective interest rate (Level 3). Fair value of the collateral is determined by appraisals or by independent valuation. Other real estate owned. Properties are recorded at the balance of the loan or at estimated fair value less estimated selling costs, whichever is less, at the date acquired. Fair values of other real estate owned ("OREO") at December 31, 2018 and 2017 are determined by sales agreement or appraisal, and costs to sell are based on estimation per the terms and conditions of the sales agreement or amounts commonly used in real estate transactions. Inputs include appraisal values or recent sales activity for similar assets in the property's market; thus OREO measured at fair value would be classified within either Level 2 or Level 3 of the hierarchy. Certain non-financial assets and non-financial liabilities are measured at fair value on a non-recurring basis including assets and liabilities related to reporting units measured at fair value in the testing of goodwill impairment, as well as intangible assets and other non-financial long-lived assets measured at fair value for impairment assessment. The following table summarizes financial assets measured at fair value on a recurring basis as of December 31, 2018 and 2017 , segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value: (in thousands) December 31, 2018 December 31, 2017 Available for Sale Securities Fair Value Measurements Using: Level 1: Quoted Prices in Active Markets For Identical Assets $ 483 $ 19,980 Level 2: Significant Other Observable Inputs 291,733 355,022 Level 3: Significant Unobservable Inputs 4,761 6,533 Securities available for sale measured at fair value $ 296,977 $ 381,535 First Guaranty's valuation methodologies may produce a fair value calculation that may not be indicative of net realizable value or reflective of future fair values. While Management believes the methodologies used are appropriate and consistent with other market participants, the use of different methodologies or assumptions to determine the fair value of certain financial instruments could result in a different estimate of fair value. The change in Level 1 securities available for sale from December 31, 2017 was due principally to a net decrease in Treasury bills of $19.5 million . The change in Level 2 and Level 3 securities available for sale from December 31, 2017 was due principally to a reduction in agency and corporate bonds related to sales and maturities offset by the purchase of mortgage-backed securities. There were no transfers between Level 1 and 2 securities available for sale from December 31, 2017 to December 31, 2018 . The following table reconciles assets measured at fair value on a recurring basis using unobservable inputs ( Level 3 ): Level 3 Changes (in thousands) December 31, 2018 December 31, 2017 Balance, beginning of year $ 6,533 $ 19,400 Total gains or losses (realized/unrealized): Included in earnings (15 ) 54 Included in other comprehensive income (79 ) — Purchases, sales, issuances and settlements, net (1,886 ) 10,574 Transfers in and/or out of Level 3 208 (23,495 ) Balance as of end of year $ 4,761 $ 6,533 There were no gains or losses for the period included in earnings attributable to the change in unrealized gains or losses relating to assets still held as of December 31, 2018 . The following table measures financial assets and financial liabilities measured at fair value on a non-recurring basis as of December 31, 2018 , segregated by the level of valuation inputs within the fair value hierarchy utilized to measure fair value: (in thousands) At December 31, 2018 At December 31, 2017 Fair Value Measurements Using: Impaired Loans Level 1: Quoted Prices in Active Markets For Identical Assets $ — $ — Level 2: Significant Other Observable Inputs — — Level 3: Significant Unobservable Inputs 3,620 12,003 Impaired loans measured at fair value $ 3,620 $ 12,003 Fair Value Measurements Using: Other Real Estate Owned Level 1: Quoted Prices in Active Markets For Identical Assets $ — $ — Level 2: Significant Other Observable Inputs 1,012 1,249 Level 3: Significant Unobservable Inputs 126 32 Other real estate owned measured at fair value $ 1,138 $ 1,281 ASC 825-10 provides First Guaranty with an option to report selected financial assets and liabilities at fair value. The fair value option established by this statement permits First Guaranty to choose to measure eligible items at fair value at specified election dates and report unrealized gains and losses on items for which the fair value option has been elected in earnings at each reporting date subsequent to implementation. First Guaranty has chosen not to elect the fair value option for any items that are not already required to be measured at fair value in accordance with accounting principles generally accepted in the United States.

Financial Instruments

Financial Instruments	12 Months Ended
	Dec. 31, 2018
Financial Instruments, Owned, at Fair Value [Abstract]
Financial Instruments	Financial Instruments Fair value estimates are generally subjective in nature and are dependent upon a number of significant assumptions associated with each instrument or group of similar instruments, including estimates of discount rates, risks associated with specific financial instruments, estimates of future cash flows and relevant available market information. Fair value information is intended to represent an estimate of an amount at which a financial instrument could be exchanged in a current transaction between a willing buyer and seller engaging in an exchange transaction. However, since there are no established trading markets for a significant portion of First Guaranty's financial instruments, First Guaranty may not be able to immediately settle financial instruments; as such, the fair values are not necessarily indicative of the amounts that could be realized through immediate settlement. In addition, the majority of the financial instruments, such as loans and deposits, are held to maturity and are realized or paid according to the contractual agreement with the customer. Quoted market prices are used to estimate fair values when available. However, due to the nature of the financial instruments, in many instances quoted market prices are not available. Accordingly, estimated fair values have been estimated based on other valuation techniques, such as discounting estimated future cash flows using a rate commensurate with the risks involved or other acceptable methods. Fair values are estimated without regard to any premium or discount that may result from concentrations of ownership of financial instruments, possible income tax ramifications or estimated transaction costs. The fair value estimates are subjective in nature and involve matters of significant judgment and, therefore, cannot be determined with precision. Fair values are also estimated at a specific point in time and are based on interest rates and other assumptions at that date. As events change the assumptions underlying these estimates, the fair values of financial instruments will change. Disclosure of fair values is not required for certain items such as lease financing, investments accounted for under the equity method of accounting, obligations of pension and other postretirement benefits, premises and equipment, other real estate, prepaid expenses, the value of long-term relationships with depositors (core deposit intangibles) and other customer relationships, other intangible assets and income tax assets and liabilities. Fair value estimates are presented for existing on- and off-balance sheet financial instruments without attempting to estimate the value of anticipated future business and the value of assets and liabilities that are not considered financial instruments. In addition, the tax ramifications related to the realization of the unrealized gains and losses have not been considered in the estimates. Accordingly, the aggregate fair value amounts presented do not purport to represent and should not be considered representative of the underlying market or franchise value of First Guaranty. Because the standard permits many alternative calculation techniques and because numerous assumptions have been used to estimate the fair values, reasonable comparison of the fair value information with other financial institutions' fair value information cannot necessarily be made. The methods and assumptions used to estimate the fair values of financial instruments are as follows: Cash and due from banks, interest-bearing deposits with banks, federal funds sold and federal funds purchased . These items are generally short-term and the carrying amounts reported in the consolidated balance sheets are a reasonable estimation of the fair values. Investment Securities. Fair values are principally based on quoted market prices. If quoted market prices are not available, fair values are based on quoted market prices of comparable instruments or the use of discounted cash flow analyses. Loans Held for Sale. Fair values of mortgage loans held for sale are based on commitments on hand from investors or prevailing market prices. These loans are classified within level 3 of the fair value hierarchy. Loans, net . Market values are computed present values using net present value formulas. The present value is the sum of the present value of all projected cash flows on an item at a specified discount rate. The discount rate is set as an appropriate rate index, plus or minus an appropriate spread. These loans are classified within level 3 of the fair value hierarchy. Impaired loans. Fair value of impaired loans is measured by either the fair value of the collateral if the loan is collateral dependent (Level 2 or Level 3), or the present value of expected future cash flows, discounted at the loan's effective interest rate (Level 3). Fair value of the collateral is determined by appraisals or by independent valuation. Accrued interest receivable. The carrying amount of accrued interest receivable approximates its fair value. Deposits. Market values are actually computed present values using net present value formulas. The present value is the sum of the present value of all projected cash flows on an item at a specified discount rate. The discount rate is set as an appropriate rate index, plus or minus an appropriate spread. Deposits are classified within level 3 of the fair value hierarchy. Accrued interest payable. The carrying amount of accrued interest payable approximates its fair value. Borrowings . The carrying amount of federal funds purchased and other short-term borrowings approximate their fair values. The fair value of First Guaranty's long-term borrowings is computed using net present value formulas. The present value is the sum of the present value of all projected cash flows on an item at a specified discount rate. The discount rate is set as an appropriate rate index, plus or minus an appropriate spread. Borrowings are classified within level 3 of the fair value hierarchy. Other Unrecognized Financial Instruments. The fair value of commitments to extend credit is estimated using the fees charged to enter into similar legally binding agreements, taking into account the remaining terms of the agreements and customers' credit ratings. For fixed-rate loan commitments, fair value also considers the difference between current levels of interest rates and the committed rates. Noninterest-bearing deposits are held at cost. The fair values of letters of credit are based on fees charged for similar agreements or on estimated cost to terminate them or otherwise settle the obligations with the counterparties at the reporting date. At December 31, 2018 and 2017 the fair value of guarantees under commercial and standby letters of credit was not material. The estimated fair values and carrying values of the financial instruments at December 31, 2018 and 2017 are presented in the following table: December 31, 2018 2017 (in thousands) Carrying Value Estimated Fair Value Carrying Value Estimated Fair Value Assets Cash and cash equivalents $ 127,965 $ 127,965 $ 38,028 $ 38,028 Securities, available for sale $ 296,977 $ 296,977 $ 381,535 $ 381,535 Securities, held to maturity $ 108,326 $ 104,840 $ 120,121 $ 118,557 Federal Home Loan Bank stock $ 2,393 $ 2,393 $ 2,351 $ 2,351 Loans held for sale $ 344 $ 379 $ 1,308 $ 1,439 Loans, net $ 1,214,492 $ 1,193,886 $ 1,139,789 $ 1,133,868 Accrued interest receivable $ 6,716 $ 6,716 $ 7,982 $ 7,982 Liabilities Deposits $ 1,629,622 $ 1,625,827 $ 1,549,286 $ 1,549,449 Borrowings $ 19,838 $ 19,853 $ 38,274 $ 38,294 Junior subordinated debentures $ 14,700 $ 14,537 $ 14,664 $ 14,324 Accrued interest payable $ 3,952 $ 3,952 $ 2,488 $ 2,488 There is no material difference between the contract amount and the estimated fair value of off-balance sheet items that are primarily comprised of short-term unfunded loan commitments that are generally at market prices.

Concentrations of Credit and Ot

Concentrations of Credit and Other Risks	12 Months Ended
	Dec. 31, 2018
Risks and Uncertainties [Abstract]
Concentrations of Credit and Other Risks	Concentrations of Credit and Other Risks First Guaranty monitors loan portfolio concentrations by region, collateral type, loan type, and industry on a monthly basis and has established maximum thresholds as a percentage of its capital to ensure that the desired mix and diversification of its loan portfolio is achieved. First Guaranty is compliant with the established thresholds as of December 31, 2018 . Personal, commercial and residential loans are granted to customers, most of who reside in northern and southern areas of Louisiana. Although First Guaranty has a diversified loan portfolio, significant portions of the loans are collateralized by real estate located in Tangipahoa Parish and surrounding parishes in Southeast Louisiana. Declines in the Louisiana economy could result in lower real estate values which could, under certain circumstances, result in losses to First Guaranty. The distribution of commitments to extend credit approximates the distribution of loans outstanding. Commercial and standby letters of credit were granted primarily to commercial borrowers. Approximately 39.6% of First Guaranty's deposits are derived from local governmental agencies at December 31, 2018 . These governmental depositing authorities are generally long-term customers. A number of the depositing authorities are under contractual obligation to maintain their operating funds exclusively with First Guaranty. In most cases, First Guaranty is required to pledge securities or letters of credit issued by the Federal Home Loan Bank to the depositing authorities to collateralize their deposits. Under certain circumstances, the withdrawal of all of, or a significant portion of, the deposits of one or more of the depositing authorities may result in a temporary reduction in liquidity, depending primarily on the maturities and/or classifications of the securities pledged against such deposits and the ability to replace such deposits with either new deposits or other borrowings. Public fund deposits totaled $645.5 million at December 31, 2018 .

Litigation

Litigation	12 Months Ended
	Dec. 31, 2018
Litigation [Abstract]
Litigation	Litigation First Guaranty is subject to various legal proceedings in the normal course of its business. It is Management's belief that the ultimate resolution of such claims will not have a material adverse effect on First Guaranty's financial position or results of operations.

Condensed Parent Company Inform

Condensed Parent Company Information	12 Months Ended
	Dec. 31, 2018
Condensed Financial Information Disclosure [Abstract]
Condensed Parent Company Information	Condensed Parent Company Information The following condensed financial information reflects the accounts and transactions of First Guaranty Bancshares, Inc. for the dates indicated: First Guaranty Bancshares, Inc. Condensed Balance Sheets December 31, (in thousands) 2018 2017 Assets Cash $ 8,069 $ 5,214 Investment in bank subsidiary 169,880 170,836 Investment Securities (available for sale, at fair value) — — Other assets 4,724 6,086 Total Assets $ 182,673 $ 182,136 Liabilities and Shareholders' Equity Short-term debt $ — $ — Senior long-term debt 19,838 22,774 Junior subordinated debentures 14,700 14,664 Other liabilities 851 715 Total Liabilities 35,389 38,153 Shareholders' Equity 147,284 143,983 Total Liabilities and Shareholders' Equity $ 182,673 $ 182,136 First Guaranty Bancshares, Inc. Condensed Statements of Income December 31, (in thousands) 2018 2017 2016 Operating Income Dividends received from bank subsidiary $ 11,788 $ 10,622 $ 11,858 Net gains on securities — 54 — Other income 289 171 160 Total operating income 12,077 10,847 12,018 Operating Expenses Interest expense 1,675 1,518 1,444 Salaries & Benefits 133 495 200 Other expenses 916 1,147 948 Total operating expenses 2,724 3,160 2,592 Income before income tax benefit and increase in equity in undistributed earnings of subsidiary 9,353 7,687 9,426 Income tax benefit 540 834 846 Income before increase in equity in undistributed earnings of subsidiary 9,893 8,521 10,272 Increase in equity in undistributed earnings of subsidiary 4,320 3,230 3,821 Net Income $ 14,213 $ 11,751 $ 14,093 First Guaranty Bancshares, Inc. Condensed Statements of Cash Flows December 31, (in thousands) 2018 2017 2016 Cash flows from operating activities: Net income $ 14,213 $ 11,751 $ 14,093 Adjustments to reconcile net income to net cash provided by operating activities: Increase in equity in undistributed earnings of subsidiary (4,320 ) (3,230 ) (3,821 ) Depreciation and amortization 43 43 7 Gain on sale of securities — (54 ) — Net change in other liabilities 136 187 318 Net change in other assets 1,360 (1,306 ) (971 ) Net cash provided by operating activities 11,432 7,391 9,626 Cash flows from investing activities: Proceeds from maturities, calls and sales of AFS securities — 134 — Funds invested in AFS securities — — — Funds invested in bank subsidiary — (3,750 ) — Cash paid in acquisition — (10,108 ) — Net cash used in investing activities — (13,724 ) — Cash flows from financing activities: Net decrease in short-term borrowings — — (1,800 ) Proceeds from long-term debt, net of costs — 3,750 — Repayment of long-term debt (2,941 ) (3,081 ) (3,730 ) Proceeds from junior subordinated debentures, net of costs — — — Issuance of common stock, net of costs — — — Redemption of preferred stock — — — Dividends paid (5,636 ) (5,210 ) (4,870 ) Net cash used in financing activities (8,577 ) (4,541 ) (10,400 ) Net increase (decrease) in cash and cash equivalents 2,855 (10,874 ) (774 ) Cash and cash equivalents at the beginning of the period 5,214 16,088 16,862 Cash and cash equivalents at the end of the period $ 8,069 $ 5,214 $ 16,088

Business and Summary of Signi_2

Business and Summary of Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2018
Accounting Policies [Abstract]
Consolidation	Consolidation The consolidated financial statements include the accounts of First Guaranty Bancshares, Inc., and its wholly owned subsidiary, First Guaranty Bank. All significant intercompany balances and transactions have been eliminated in consolidation.
Acquisition Accounting	Acquisition Accounting Acquisitions are accounted for under the purchase method of accounting. Purchased assets, including identifiable intangibles, and assumed liabilities are recorded at their respective acquisition date fair values. If the fair value of net assets purchased exceeds the consideration given, a gain on acquisition is recognized. 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 information relative to closing date fair values becomes available. Purchased loans acquired in a business combination are recorded at estimated fair value on their purchase date with no carryover of the related allowance for loan losses. See Acquired Loans section below for accounting policy regarding loans acquired in a business combination.
Use of Estimates	Use of estimates The preparation of financial statements in conformity with generally accepted accounting principles requires Management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the dates of the financial statements and the reported amounts of revenue and expense during the reporting periods. Actual results could differ from those estimates. 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 real estate acquired in connection with foreclosures or in satisfaction of loans, and the valuation of investment securities. In connection with the determination of the allowance for loan losses and real estate owned, First Guaranty obtains independent appraisals for significant properties.
Cash and Cash Equivalents	Cash and cash equivalents For purposes of reporting cash flows, cash and cash equivalents are defined as cash, due from banks, interest-bearing demand deposits with banks and federal funds sold with maturities of three months or less.
Securities	Securities First Guaranty reviews its financial position, liquidity and future plans in evaluating the criteria for classifying investment securities. Debt securities that Management has the ability and intent to hold to maturity are classified as held to maturity and carried at cost, adjusted for amortization of premiums and accretion of discounts using methods approximating the interest method. Securities available for sale are stated at fair value. The unrealized difference, if any, between amortized cost and fair value of these AFS securities is excluded from income and is reported, net of deferred taxes, in accumulated other comprehensive income as a part of shareholders' equity. Details of other comprehensive income are reported in the consolidated statements of comprehensive income. Realized gains and losses on securities are computed based on the specific identification method and are reported as a separate component of other income. Amortization of premiums and discounts is included in interest income. Discounts and premiums related to debt securities are amortized using the effective interest rate method. Management evaluates securities for other-than-temporary impairment ("OTTI") at least on a quarterly basis, and more frequently when economic or market conditions warrant such an evaluation. In estimating other-than-temporary losses, management considers the length of time and extent that fair value has been less than cost and the financial condition and near term prospects of the issuer. Management also assesses whether it intends to sell, or it is more likely than not that it will be required to sell, a security in an unrealized loss position before recovery of its amortized cost basis. If either of the criteria regarding intent or requirement to sell is met, the entire difference between amortized cost and fair value is recognized as impairment through earnings. For debt securities that do not meet the aforementioned criteria, the amount of impairment is split into two components as follows: 1) OTTI related to credit loss, which must be recognized in the income statement and 2) OTTI related to other factors, which is recognized in other comprehensive income. The credit loss is defined as the difference between the present value of the cash flows expected to be collected and the amortized cost basis. For equity securities, the entire amount of impairment is recognized through earnings.
Loans Held for Sale	Loans held for sale Mortgage loans originated and intended for sale in the secondary market are carried at the lower of cost or estimated fair value in the aggregate. Net unrealized losses, if any, are recognized through a valuation allowance by charges to income. Loans held for sale have primarily been fixed rate single-family residential mortgage loans under contract to be sold in the secondary market. In most cases, loans in this category are sold within thirty days. Buyers generally have recourse to return a purchased loan under limited circumstances. Recourse conditions may include early payment default, breach of representations or warranties and documentation deficiencies. Mortgage loans held for sale are generally sold with the mortgage servicing rights released. Gains or losses on sales of mortgage loans are recognized based on the differences between the selling price and the carrying value of the related mortgage loans sold.
Loans	Loans Loans are stated at the principal amounts outstanding, net of unearned income and deferred loan fees. In addition to loans issued in the normal course of business, overdrafts on customer deposit accounts are considered to be loans and reclassified as such. Interest income on all classifications of loans is calculated using the simple interest method on daily balances of the principal amount outstanding. Accrual of interest is discontinued on a loan when Management believes, after considering economic and business conditions and collection efforts, the borrower's financial condition is such that reasonable doubt exists as to the full and timely collection of principal and interest. This evaluation is made for all loans that are 90 days or more contractually past due. When a loan is placed in nonaccrual status, all interest previously accrued but not collected is reversed against current period interest income. Income on such loans is then recognized only to the extent that cash is received and where the future collection of interest and principal is probable. Loans are returned to accrual status when, in the judgment of Management, all principal and interest amounts contractually due are reasonably assured to be collected within a reasonable time frame and when the borrower has demonstrated payment performance of cash or cash equivalents; generally for a period of 6 months months. All loans, except mortgage loans, are considered past due if they are past due 30 days. Mortgage loans are considered past due when two consecutive payments have been missed. Loans that are past due 90 - 120 days and deemed uncollectible are charged-off. The loan charge off is a reduction of the allowance for loan losses.
Troubled Debt Restructurings (TDRs)	Troubled Debt Restructurings (TDRs) TDRs are loans in which the borrower is experiencing financial difficulty at the time of restructuring, and the Bank has granted a concession to the borrower. TDRs are undertaken in order to improve the likelihood of recovery on the loan and may take the form of modifications made with the stated interest rate lower than the current market rate for new debt with similar risk, other modifications to the structure of the loan that fall outside of normal underwriting policies and procedures, or in limited circumstances forgiveness of principal and / or interest. TDRs can involve loans remaining on non-accrual, moving to non-accrual, or continuing on accrual status, depending on the individual facts and circumstances of the borrower. TDRs are subject to policies governing accrual and non-accrual evaluation consistent with all other loans as discussed in the "Loans" section above. All loans with the TDR designation are considered to be impaired, even if they are accruing. First Guaranty's policy is to evaluate TDRs that have subsequently been restructured and returned to market terms after 6 months of performance. The evaluation includes a review of the loan file and analysis of the credit to assess the loan terms, including interest rate to insure such terms are consistent with market terms. The loan terms are compared to a sampling of loans with similar terms and risk characteristics, including loans originated by First Guaranty and loans lost to a competitor. The sample provides a guide to determine market terms pursuant to ASC 310-40-50-2. The loan is also evaluated at that time for impairment. A loan determined to be restructured to market terms and not considered impaired will no longer be disclosed as a TDR in the years following the restructuring. These loans will continue to be individually evaluated for impairment. A loan determined to either be restructured to below market terms or to be impaired will remain a TDR.
Credit Quality	Credit Quality First Guaranty's credit quality indicators are pass, special mention, substandard, and doubtful. Loans included in the pass category are performing loans with satisfactory debt coverage ratios, collateral, payment history, and documentation requirements. Special mention loans have potential weaknesses that deserve close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects. Borrowers may be experiencing adverse operating trends (declining revenues or margins) or an ill proportioned balance sheet (e.g., increasing inventory without an increase in sales, high leverage, tight liquidity). Adverse economic or market conditions, such as interest rate increases or the entry of a new competitor, may also support a special mention rating. Nonfinancial reasons include management problems, pending litigation, an ineffective loan agreement or other material structural weakness, and any other significant deviation from prudent lending practices. A substandard loan is inadequately protected by the paying capacity of the obligor or of the collateral pledged, if any. Loans classified as substandard have a well-defined weakness. They are characterized by the distinct possibility that First Guaranty will sustain some loss if the deficiencies are not corrected. These loans require more intensive supervision. Substandard loans are generally characterized by current or expected unprofitable operations, inadequate debt service coverage, inadequate liquidity, or marginal capitalization. Repayment may depend on collateral or other credit risk mitigates. For some substandard loans, the likelihood of full collection of interest and principal may be in doubt and interest is no longer accrued. Consumer loans that are 90 days or more past due or that are nonaccrual are considered substandard. Doubtful loans have the weaknesses of substandard loans with the additional characteristic that the weaknesses make collection or liquidation in full questionable and there is a high probability of loss based on currently existing facts, conditions and values. A loan is considered impaired when, based on current information and events, it is probable that First Guaranty will be unable to collect the scheduled payments of principal or interest when due according to the contractual terms of the loan agreement. Factors considered by Management in determining impairment include payment status, collateral value and the probability of collecting scheduled principal and interest payments when due. Loans that experience insignificant payment delays and payment shortfalls generally are not classified as impaired. Management determines the significance of payment delays and payment shortfalls on a case-by-case basis, taking into consideration all of the circumstances surrounding the loan and the borrower, including the length of the delay, the reasons for the delay, the borrower's prior payment record and the amount of the shortfall in relation to the principal and interest owed. Impairment is measured on a loan-by-loan basis for commercial and construction loans by either the present value of expected future cash flows discounted at the loan's effective interest rate, the loan's obtainable market price or the fair value of the collateral if the loan is collateral dependent. This process is only applied to impaired loans or relationships in excess of $500,000 . Large groups of smaller balance homogeneous loans are collectively evaluated for impairment. Accordingly, individual consumer and residential loans are not separately identified for impairment disclosures, unless such loans are the subject of a restructuring agreement. Loans that have been restructured in a troubled debt restructuring will continue to be evaluated individually for impairment, including those no longer requiring disclosure.
Acquired Loans	Acquired Loans Loans are recorded at estimated fair value on their purchase date with no carryover of the related allowance for loan losses. Acquired loans are segregated between those with deteriorated credit quality at acquisition and those deemed as performing. To make this determination, Management considers such factors as past due status, nonaccrual status, credit risk ratings, interest rates and collateral position. The fair value of acquired loans deemed performing is determined by discounting cash flows, both principal and interest, for each pool at prevailing market interest rates as well as consideration of inherent potential losses. The difference between the fair value and principal balances due at acquisition date, the fair value discount, is accreted into income over the estimated life of each loan pool. Loans acquired in a business combination are recorded at their estimated fair value on their purchase date with no carryover of the related allowance for loan losses. Performing acquired loans are subsequently evaluated for any required allowance at each reporting date. An allowance for loan losses is calculated using a similar methodology for originated loans.
Loan Fees and Costs	Loan fees and costs Nonrefundable loan origination and commitment fees and direct costs associated with originating loans are deferred and recognized over the lives of the related loans as an adjustment to the loans' yield using the level yield method.
Allowance for Loan Losses	Allowance for loan losses The allowance for loan losses is established through a provision for loan losses charged to expense. Loans are charged against the allowance for loan losses when Management believes that the collectability of the principal is unlikely. The allowance, which is based on evaluation of the collectability of loans and prior loan loss experience, is an amount that, in the opinion of Management, reflects the risks inherent in the existing loan portfolio and exists at the reporting date. The evaluations take into consideration a number of subjective factors including changes in the nature and volume of the loan portfolio, historical losses, overall portfolio quality, review of specific problem loans, current economic conditions that may affect a borrower's ability to pay, adequacy of loan collateral and other relevant factors. In addition, regulatory agencies, as an integral part of their examination process, periodically review the estimated losses on loans. Such agencies may require additional recognition of losses based on their judgments about information available to them at the time of their examination. The following are general credit risk factors that affect First Guaranty's loan portfolio segments. These factors do not encompass all risks associated with each loan category. Construction and land development loans have risks associated with interim construction prior to permanent financing and repayment risks due to the future sale of developed property. Farmland and agricultural loans have risks such as weather, government agricultural policies, fuel and fertilizer costs, and market price volatility. 1-4 family, multi-family, and consumer credits are strongly influenced by employment levels, consumer debt loads and the general economy. Non-farm non-residential loans include both owner occupied real estate and non-owner occupied real estate. Common risks associated with these properties is the ability to maintain tenant leases and keep lease income at a level able to service required debt and operating expenses. Commercial and industrial loans generally have non-real estate secured collateral which requires closer monitoring than real estate collateral. Although Management uses available information to recognize losses on loans, because of uncertainties associated with local economic conditions, collateral values and future cash flows on impaired loans, it is reasonably possible that a material change could occur in the allowance for loan losses in the near term. However, the amount of the change that is reasonably possible cannot be estimated. The evaluation of the adequacy of loan collateral is often based upon estimates and appraisals. Because of changing economic conditions, the valuations determined from such estimates and appraisals may also change. Accordingly, First Guaranty may ultimately incur losses that vary from Management's current estimates. Adjustments to the allowance for loan losses will be reported in the period such adjustments become known or can be reasonably estimated. All loan losses are charged to the allowance for loan losses when the loss actually occurs or when the collectability of the principal is unlikely. Recoveries are credited to the allowance at the time of recovery. The allowance consists of specific, general, and unallocated components. The specific component relates to loans that are classified as doubtful, substandard, and impaired. For such loans that are also classified as impaired, an allowance is established when the discounted cash flows (or collateral value or observable market price) of the impaired loan is lower than the carrying value of that loan. Also, a specific reserve is allocated for syndicated loans. The general component covers non-classified loans and special mention loans and is based on historical loss experience adjusted for qualitative factors. An unallocated component is maintained to cover uncertainties that could affect the estimate of probable losses. The allowance for loan losses is reviewed on a monthly basis. The monitoring of credit risk also extends to unfunded credit commitments, such as unused commercial credit lines and letters of credit. A reserve is established as needed for estimates of probable losses on such commitments.
Goodwill and Intangible Assets	Goodwill and intangible assets Goodwill and intangible assets deemed to have indefinite lives are subject to annual impairment tests. First Guaranty's goodwill is tested for impairment on an annual basis, or more often if events or circumstances indicate that there may be impairment. Adverse changes in the economic environment, declining operations, or other factors could result in a decline in the implied fair value of goodwill. If the implied fair value is less than the carrying amount, a loss would be recognized in other non-interest expense to reduce the carrying amount to implied fair value of goodwill. The goodwill impairment test includes two steps that are preceded by a, "step zero", qualitative test. The qualitative test allows Management to assess whether qualitative factors indicate that it is more likely than not that impairment exists. If it is not more likely than not that impairment exists, then no impairment exists and the two step quantitative test would not be necessary. These qualitative indicators include factors such as earnings, share price, market conditions, etc. If the qualitative factors indicate that it is more likely than not that impairment exists, then the two step quantitative test would be necessary. Step one is used to identify potential impairment and compares the estimated fair value of a reporting unit with its carrying amount, including goodwill. If the estimated fair value of a reporting unit exceeds its carrying amount, goodwill of the reporting unit is not considered impaired. If the carrying amount of a reporting unit exceeds its estimated fair value, the second step of the goodwill impairment test is performed to measure the amount of impairment loss, if any. Step two of the goodwill impairment test compares the implied estimated fair value of reporting unit goodwill with the carrying amount of that goodwill. If the carrying amount of goodwill for that reporting unit exceeds the implied fair value of that unit's goodwill, an impairment loss is recognized in an amount equal to that excess. Identifiable intangible assets are acquired assets that lack physical substance but can be distinguished from goodwill because of contractual or legal rights or because the assets are capable of being sold or exchanged either on their own or in combination with the related contract, asset or liability. First Guaranty's intangible assets primarily relate to core deposits and loan servicing assets related to the SBA portfolio. These core deposit intangibles are amortized on a straight-line basis over terms ranging from seven to fifteen years. Management periodically evaluates whether events or circumstances have occurred that impair this deposit intangible.
Premises and Equipment	Premises and equipment Premises and equipment are stated at cost, less accumulated depreciation. Depreciation is computed for financial reporting purposes using the straight-line method over the estimated useful lives of the respective assets as follows: Buildings and improvements 10 - 40 years Equipment, fixtures and automobiles 3 - 10 years Expenditures for renewals and betterments are capitalized and depreciated over their estimated useful lives. Repairs, maintenance and minor improvements are charged to operating expense as incurred. Gains or losses on disposition, if any, are recorded as a separate line item in noninterest income on the Statements of Income .
Other Real Estate	Other real estate Other real estate includes properties acquired through foreclosure or acceptance of deeds in lieu of foreclosure. These properties are recorded at the lower of the recorded investment in the property or its fair value less the estimated cost of disposition. Any valuation adjustments required prior to foreclosure are charged to the allowance for loan losses. Subsequent to foreclosure, losses on the periodic revaluation of the property are charged to current period earnings as other real estate expense. Costs of operating and maintaining the properties are charged to other real estate expense as incurred. Any subsequent gains or losses on dispositions are credited or charged to income in the period of disposition .
Off-balance Sheet Financial Instruments	Off-balance sheet financial instruments In the ordinary course of business, First Guaranty has entered into commitments to extend credit, including commitments under credit card arrangements, commitments to fund commercial real estate, construction and land development loans secured by real estate, and performance standby letters of credit. Such financial instruments are recorded when they are funded.
Income Taxes	Income taxes First Guaranty and its subsidiary file a consolidated federal income tax return on a calendar year basis. In lieu of Louisiana state income tax, the Bank is subject to the Louisiana bank shares tax, which is included in noninterest expense in First Guaranty's consolidated financial statements. With few exceptions, First Guaranty is no longer subject to U.S. federal, state or local income tax examinations for years before 2014. Deferred tax assets and liabilities are recognized for the future tax consequences attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax basis. Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the years in which the deferred tax assets or liabilities are expected to be settled or realized. Valuation allowances are established when necessary to reduce deferred tax assets to the amount expected to be utilized.
Comprehensive Income	Comprehensive income Accounting principles generally require that recognized revenue, expenses, gains and losses be included in net income. Although certain changes in assets and liabilities, such as unrealized gains and losses on available for sale securities, are reported as a separate component of the equity section of the balance sheet, such items along with net income, are components of comprehensive income. The components of other comprehensive income and related tax effects are presented in the Statements of Comprehensive Income.
Fair Value Measurements	Fair Value Measurements The fair value of a financial instrument is the current amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. A fair value measurement assumes that the transaction to sell the asset or transfer the liability occurs in the principal market for the asset or liability or, in the absence of a principal market, the most advantageous market for the asset or liability. Valuation techniques use certain inputs to arrive at fair value. Inputs to valuation techniques are the assumptions that market participants would use in pricing the asset or liability. They may be observable or unobservable. First Guaranty uses a fair value hierarchy for valuation inputs that gives the highest priority to quoted prices in active markets for identical assets or liabilities and the lowest priority to unobservable inputs. See Note 20 for a detailed description of fair value measurements.
Transfers of Financial Assets	Transfers of Financial Assets Transfers of financial assets are accounted for as sales, when control over the assets has been surrendered. Control over transferred assets is deemed to be surrendered when (i) the assets have been isolated from First Guaranty, (ii) 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 (iii) First Guaranty does not maintain effective control over the transferred assets through an agreement to repurchase them before their maturity.
Earnings per Common Share	Earnings per common share Earnings per share represents income available to common shareholders divided by the weighted average number of common shares outstanding during the period. In December of 2017, First Guaranty issued a pro rata, 10% common stock dividend. The shares issued for the stock dividend have been retrospectively factored into the calculation of earnings per share as well as cash dividends paid on common stock and represented on the face of the financial statements. No convertible shares of First Guaranty's stock are outstanding.
Operating Segments	Operating Segments All of First Guaranty's operations are considered by management to be aggregated into one reportable operating segment. While the chief decision-makers monitor the revenue streams of the various products and services, the identifiable segments are not material. Operations are managed and financial performance is evaluated on a Company-wide basis.
Reclassifications	Reclassifications Certain reclassifications have been made to prior year end financial statements in order to conform to the classification adopted for reporting in 2018 .
Recent Accounting Pronouncements	Recent Accounting Pronouncements In February 2016, the FASB issued ASU 2016-02, "Leases: Conforming Amendments Related to Leases". This ASU amends the codification regarding leases in order to increase transparency and comparability. The ASU requires companies to recognize lease assets and liabilities on the balance sheet and disclose key information about leasing arrangements. A lessee would recognize a liability to make lease payments and a right-of-use asset representing its right to use the leased asset for the lease term. The ASU is effective for annual and interim periods beginning after December 15, 2018. The adoption of this ASU is not expected to have a material effect on First Guaranty's Consolidated Financial Statements. In June 2016, the FASB issued ASU 2016-13, "Financial Instruments- Credit Losses: Measurement of Credit Losses on Financial Instruments". This ASU amends guidance on reporting credit losses for assets held at amortized cost basis and available for sale debt securities. The ASU amendments require the measurement of all expected credit losses for financial assets held at the reporting date be based on historical experience, current conditions, and reasonable and supportable forecasts. The ASU requires assets held at cost basis to reflect the company's current estimate of all expected credit losses. For available for sale debt securities, credit losses should be presented as an allowance rather than as a write-down. In addition, this ASU amends the accounting for purchased financial assets with credit deterioration. This ASU is effective for annual and interim periods beginning after December 15, 2019. First Guaranty is currently evaluating the impact of this accounting standard and is implementing a new software application to assist in determining the impact on the Consolidated Financial Statements. In January 2017, the FASB issued ASU 2017-04, "Intangibles - Goodwill and Other: Simplifying the Test for Goodwill Impairment". This ASU amends the guidance on impairment testing. The ASU eliminates Step 2 from the goodwill impairment test. 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, income tax effects from any tax deductible goodwill on the carrying amount of the reporting unit should be considered when measuring the goodwill impairment loss, if applicable. The ASU also eliminates the requirements for any reporting unit with a zero or negative carrying amount to perform a qualitative assessment and, if it fails that qualitative test, 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. This ASU is effective for annual and interim periods beginning after December 15, 2019. First Guaranty is currently evaluating the impact of the adoption of this guidance on the Consolidated Financial Statements. In March 2017, the FASB issued ASU 2017-08, "Receivables- Nonrefundable Fees and Other Costs, Premium Amortization on Purchased Callable Debt Securities". This ASU shortens the amortization period for certain callable debt securities held at a premium. Specifically, this ASU requires the premium to be amortized to the earliest call date. This ASU does not require an accounting change for securities held at a discount, the discount continues to be amortized to maturity. This ASU is effective for annual and interim periods beginning after December 15, 2018. First Guaranty is currently evaluating the impact of the adoption of this guidance on the Consolidated Financial Statements. In February 2018, the FASB issued ASU 2018-02, "Income Statement - Reporting Comprehensive Income: Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income". This ASU provides an option to reclassify stranded tax effects within AOCI to retained earnings in each period in which the effect of the change in the U.S. federal corporate income tax rate in the Tax Cuts and Jobs Act (or portion thereof) is recorded. This ASU requires disclosure of a description of the accounting policy for releasing income tax effects from AOCI; whether election is made to reclassify the stranded income tax effects from the Tax Cuts and Jobs Act; and information about the other income tax effects that are reclassified. This ASU is effective for annual and interim periods beginning after December 15, 2018. First Guaranty adopted this ASU in the third quarter of 2018 and reclassified its stranded tax credit of $306,000 from accumulated other comprehensive income to retained earnings. In August 2018, the FASB issued ASU No. 2018-13, "Disclosure Framework - Changes to the Disclosure Requirements for Fair Value Measurement." This ASU removes, modifies, and adds certain disclosure requirements for fair value measurements. For example, public entities will no longer be required to disclose the valuation processes for Level 3 fair value measurements, but will be required to disclose the range and weighted average used to develop significant unobservable inputs for Level 3 fair value measurements. This ASU is effective for interim and annual reporting periods beginning after December 15, 2019. In addition, entities may early adopt the modified or eliminated disclosure requirements and delay adoption of the additional disclosure requirements until their effective date. First Guaranty does not believe the adoption of this ASU will have a material impact on the Consolidated Financial Statements, as the update only revises disclosure requirements.

Merger Transaction (Tables)

Merger Transaction (Tables)	12 Months Ended
	Dec. 31, 2018
Business Combinations [Abstract]
Fair Value of Tangible and Intangible Assets Acquired and Liabilities Assumed	(in thousands) Premier Bancshares, Inc. Cash and due from banks $ 4,542 Federal funds sold 2,855 Securities available for sale 5,892 Loans 128,018 Premises and equipment 9,493 Goodwill 1,474 Intangible assets 3,809 Other real estate 221 Other assets 2,009 Total assets acquired $ 158,313 Deposits 127,228 FHLB borrowings 9,700 Other liabilities 431 Total liabilities assumed $ 137,359 Net assets acquired $ 20,954
Pro Forma Information	The following pro forma information for the twelve months ended December 31, 2017 and December 31, 2016 reflects First Guaranty's estimated consolidated results of operations as if the acquisition of Premier occurred at January 1, 2016, unadjusted for potential cost savings. (in thousands, except share data) 2017 2016 Net Interest Income $ 55,663 $ 53,190 Noninterest Income 8,540 11,541 Noninterest Expense 42,434 39,395 Net Income 10,885 13,709 Earnings per common share $ 1.24 $ 1.56

Securities (Tables)

Securities (Tables)	12 Months Ended
	Dec. 31, 2018
Investments, Debt and Equity Securities [Abstract]
Summary Comparison of Securities by Type	A summary comparison of securities by type at December 31, 2018 and 2017 is shown below. December 31, 2018 December 31, 2017 (in thousands) Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Amortized Cost Gross Unrealized Gains Gross Unrealized Losses Fair Value Available for sale: U.S. Treasuries $ — $ — $ — $ — $ 19,490 $ — $ (4 ) $ 19,486 U.S. Government Agencies 146,911 — (5,522 ) 141,389 200,052 — (4,069 ) 195,983 Corporate debt securities 76,310 72 (3,504 ) 72,878 91,770 661 (946 ) 91,485 Mutual funds or other equity securities 483 — — 483 500 — (7 ) 493 Municipal bonds 32,956 1,120 (175 ) 33,901 37,210 2,434 (75 ) 39,569 Collateralized mortgage obligations 918 — (14 ) 904 1,191 — (6 ) 1,185 Mortgage-backed securities 48,434 — (1,012 ) 47,422 33,680 — (346 ) 33,334 Total available for sale securities $ 306,012 $ 1,192 $ (10,227 ) $ 296,977 $ 383,893 $ 3,095 $ (5,453 ) $ 381,535 Held to maturity: U.S. Government Agencies $ 28,172 $ — $ (1,081 ) $ 27,091 $ 28,169 $ — $ (670 ) $ 27,499 Municipal bonds 5,227 — (101 ) 5,126 5,322 15 (12 ) 5,325 Mortgage-backed securities 74,927 — (2,304 ) 72,623 86,630 6 (903 ) 85,733 Total held to maturity securities $ 108,326 $ — $ (3,486 ) $ 104,840 $ 120,121 $ 21 $ (1,585 ) $ 118,557
Investments Classified by Contractual Maturity Date	The scheduled maturities of securities at December 31, 2018 , by contractual maturity, are shown below. Actual maturities may differ from contractual maturities due to call or prepayments. Mortgage-backed securities are not due at a single maturity because of amortization and potential prepayment of the underlying mortgages. For this reason they are presented separately in the maturity table below. December 31, 2018 (in thousands) Amortized Cost Fair Value Available for sale: Due in one year or less $ 3,035 $ 3,048 Due after one year through five years 55,844 54,601 Due after five years through 10 years 180,855 174,307 Over 10 years 16,926 16,695 Subtotal 256,660 248,651 Collateralized mortgage obligations 918 904 Mortgage-backed Securities 48,434 47,422 Total available for sale securities $ 306,012 $ 296,977 Held to maturity: Due in one year or less $ — $ — Due after one year through five years 7,248 7,074 Due after five years through 10 years 17,339 16,545 Over 10 years 8,812 8,598 Subtotal 33,399 32,217 Mortgage-backed Securities 74,927 72,623 Total held to maturity securities $ 108,326 $ 104,840
Schedule of Unrealized Loss on Investments	The following is a summary of the fair value of securities with gross unrealized losses and an aging of those gross unrealized losses at December 31, 2018 . December 31, 2018 Less Than 12 Months 12 Months or More Total (in thousands) Number of Securities Fair Value Gross Unrealized Losses Number of Securities Fair Value Gross Unrealized Losses Number of Securities Fair Value Gross Unrealized Losses Available for sale: U.S. Treasuries — $ — $ — — $ — $ — — $ — $ — U.S. Government Agencies 1 4,227 (273 ) 50 137,162 (5,249 ) 51 141,389 (5,522 ) Corporate debt securities 37 9,560 (252 ) 183 58,877 (3,252 ) 220 68,437 (3,504 ) Mutual funds or other equity securities — — — — — — — — — Municipal bonds 1 115 — 19 8,436 (175 ) 20 8,551 (175 ) Collateralized mortgage obligations — — — 5 904 (14 ) 5 904 (14 ) Mortgage-backed securities 16 19,453 (73 ) 38 27,969 (939 ) 54 47,422 (1,012 ) Total available for sale securities 55 $ 33,355 $ (598 ) 295 $ 233,348 $ (9,629 ) 350 $ 266,703 $ (10,227 ) Held to maturity: U.S. Government Agencies — $ — $ — 14 $ 27,091 $ (1,081 ) 14 $ 27,091 $ (1,081 ) Municipal bonds — — — 9 5,126 (101 ) 9 5,126 (101 ) Mortgage-backed securities — — — 56 72,623 (2,304 ) 56 72,623 (2,304 ) Total held to maturity securities — $ — $ — 79 $ 104,840 $ (3,486 ) 79 $ 104,840 $ (3,486 ) The following is a summary of the fair value of securities with gross unrealized losses and an aging of those gross unrealized losses at December 31, 2017 . December 31, 2017 Less Than 12 Months 12 Months or More Total (in thousands) Number of Securities Fair Value Gross Unrealized Losses Number of Securities Fair Value Gross Unrealized Losses Number of Securities Fair Value Gross Unrealized Losses Available for sale: U.S. Treasuries 6 $ 19,486 $ (4 ) — $ — $ — 6 $ 19,486 $ (4 ) U.S. Government Agencies 30 62,991 (519 ) 36 132,992 (3,550 ) 66 195,983 (4,069 ) Corporate debt securities 56 19,050 (240 ) 70 22,818 (706 ) 126 41,868 (946 ) Mutual funds or other equity securities 1 493 (7 ) — — — 1 493 (7 ) Municipal bonds 9 4,431 (36 ) 1 1,079 (39 ) 10 5,510 (75 ) Collateralized mortgage obligations 4 936 (6 ) — — — 4 936 (6 ) Mortgage-backed securities 26 14,737 (73 ) 11 18,313 (273 ) 37 33,050 (346 ) Total available for sale securities 132 $ 122,124 $ (885 ) 118 $ 175,202 $ (4,568 ) 250 $ 297,326 $ (5,453 ) Held to maturity: U.S. Government Agencies 4 $ 9,925 $ (75 ) 10 $ 17,574 $ (595 ) 14 $ 27,499 $ (670 ) Municipal bonds 6 3,191 (12 ) — — — 6 3,191 (12 ) Mortgage-backed securities 35 54,186 (515 ) 17 26,852 (388 ) 52 81,038 (903 ) Total held to maturity securities 45 $ 67,302 $ (602 ) 27 $ 44,426 $ (983 ) 72 $ 111,728 $ (1,585 )
Schedule of Other than Temporary Impairment Losses on Available-for-Sale Securities	During the years ended December 31, 2018 , 2017 , and 2016 , First Guaranty recorded OTTI losses on available for sale securities as follows: (in thousands) Year Ended December 31, 2018 Year Ended December 31, 2017 Year Ended December 31, 2016 Total OTTI charge realized and unrealized $ — $ — $ 66 OTTI recognized in other comprehensive income (non-credit component) — — 6 Net impairment losses recognized in earnings (credit component) $ — $ — $ 60
Credit Losses on Debt Securities for which Portion of OTTI Recognized in OCI	The following table presents a roll-forward of the amount of credit losses on debt securities held by First Guaranty for which a portion of OTTI was recognized in other comprehensive income for the year ended December 31, 2018 , 2017 , and 2016 : (in thousands) Year Ended December 31, 2018 Year Ended December 31, 2017 Year Ended December 31, 2016 Beginning balance of credit losses at beginning of year $ 60 $ 60 $ 175 Other-than-temporary impairment credit losses on securities not previously OTTI — — 60 Increases for additional credit losses on securities previously determined to be OTTI — — — Reduction for increases in cash flows — — — Reduction due to credit impaired securities sold or fully settled — — (175 ) Ending balance of cumulative credit losses recognized in earnings at end of year $ 60 $ 60 $ 60
Schedule of Exposure to Investment Securities Issuers that Exceeded 10% of Shareholder's Equity	At December 31, 2018 , First Guaranty's exposure to investment securities issuers that exceeded 10% of shareholders' equity as follows: December 31, 2018 (in thousands) Amortized Cost Fair Value Federal Home Loan Bank (FHLB) 42,398 40,882 Federal Home Loan Mortgage Corporation (Freddie Mac-FHLMC) 47,577 46,399 Federal National Mortgage Association (Fannie Mae-FNMA) 94,193 90,973 Federal Farm Credit Bank (FFCB) 114,276 110,271 Total $ 298,444 $ 288,525

Loans (Tables)

Loans (Tables)	12 Months Ended
	Dec. 31, 2018
Receivables [Abstract]
Summary of Components of Loan Portfolio	The following table summarizes the components of First Guaranty's loan portfolio as of December 31, 2018 and December 31, 2017 : December 31, 2018 December 31, 2017 (in thousands except for %) Balance As % of Category Balance As % of Category Real Estate: Construction & land development $ 124,644 10.1 % $ 112,603 9.8 % Farmland 18,401 1.5 % 25,691 2.2 % 1- 4 Family 172,760 14.1 % 158,733 13.8 % Multifamily 42,918 3.5 % 16,840 1.4 % Non-farm non-residential 586,263 47.7 % 530,293 46.1 % Total Real Estate 944,986 76.9 % 844,160 73.3 % Non-Real Estate: Agricultural 23,108 1.9 % 21,514 1.9 % Commercial and industrial 200,877 16.4 % 230,638 20.0 % Consumer and other 59,443 4.8 % 55,185 4.8 % Total Non-Real Estate 283,428 23.1 % 307,337 26.7 % Total Loans Before Unearned Income 1,228,414 100.0 % 1,151,497 100.0 % Unearned income (3,146 ) (2,483 ) Total Loans Net of Unearned Income $ 1,225,268 $ 1,149,014
Summary of Fixed and Floating Rate Loans by Contractual Maturity, Excluding Nonaccrual Loans	The following table summarizes fixed and floating rate loans by contractual maturity, excluding nonaccrual loans, as of December 31, 2018 and December 31, 2017 unadjusted for scheduled principal payments, prepayments, or repricing opportunities. The average life of the loan portfolio may be substantially less than the contractual terms when these adjustments are considered. December 31, 2018 December 31, 2017 (in thousands) Fixed Floating Total Fixed Floating Total One year or less $ 108,160 $ 80,895 $ 189,055 $ 89,383 $ 75,361 $ 164,744 One to five years 393,344 287,737 681,081 390,333 251,135 641,468 Five to 15 years 118,715 86,779 205,494 124,215 70,273 194,488 Over 15 years 85,611 58,430 144,041 70,366 67,881 138,247 Subtotal $ 705,830 $ 513,841 1,219,671 $ 674,297 $ 464,650 1,138,947 Nonaccrual loans 8,743 12,550 Total Loans Before Unearned Income 1,228,414 1,151,497 Unearned income (3,146 ) (2,483 ) Total Loans Net of Unearned Income $ 1,225,268 $ 1,149,014
Past due Financing Receivables	The following tables present the age analysis of past due loans at December 31, 2018 and December 31, 2017 : As of December 31, 2018 (in thousands) 30-89 Days Past Due 90 Days or Greater Past Due Total Past Due Current Total Loans Recorded Investment 90 Days Accruing Real Estate: Construction & land development $ 936 $ 311 $ 1,247 $ 123,397 $ 124,644 $ — Farmland — 1,293 1,293 17,108 18,401 — 1- 4 family 4,333 2,272 6,605 166,155 172,760 26 Multifamily 648 — 648 42,270 42,918 — Non-farm non-residential 4,897 864 5,761 580,502 586,263 — Total Real Estate 10,814 4,740 15,554 929,432 944,986 26 Non-Real Estate: Agricultural 528 3,651 4,179 18,929 23,108 — Commercial and industrial 742 370 1,112 199,765 200,877 53 Consumer and other 537 127 664 58,779 59,443 66 Total Non-Real Estate 1,807 4,148 5,955 277,473 283,428 119 Total Loans Before Unearned Income $ 12,621 $ 8,888 $ 21,509 $ 1,206,905 1,228,414 $ 145 Unearned income (3,146 ) Total Loans Net of Unearned Income $ 1,225,268 As of December 31, 2017 (in thousands) 30-89 Days Past Due 90 Days or Greater Past Due Total Past Due Current Total Loans Recorded Investment 90 Days Accruing Real Estate: Construction & land development $ 95 $ 371 $ 466 $ 112,137 $ 112,603 $ — Farmland 175 65 240 25,451 25,691 — 1- 4 family 1,481 1,953 3,434 155,299 158,733 — Multifamily — — — 16,840 16,840 — Non-farm non-residential 1,006 3,758 4,764 525,529 530,293 — Total Real Estate 2,757 6,147 8,904 835,256 844,160 — Non-Real Estate: Agricultural 239 1,537 1,776 19,738 21,514 41 Commercial and industrial 630 5,624 6,254 224,384 230,638 798 Consumer and other 463 81 544 54,641 55,185 — Total Non-Real Estate 1,332 7,242 8,574 298,763 307,337 839 Total Loans Before Unearned Income $ 4,089 $ 13,389 $ 17,478 $ 1,134,019 1,151,497 $ 839 Unearned income (2,483 ) Total Loans Net of Unearned Income $ 1,149,014
Summary of Nonaccrual Loans by Class	The following is a summary of nonaccrual loans by class at the dates indicated: As of December 31, (in thousands) 2018 2017 Real Estate: Construction & land development $ 311 $ 371 Farmland 1,293 65 1- 4 family 2,246 1,953 Multifamily — — Non-farm non-residential 864 3,758 Total Real Estate 4,714 6,147 Non-Real Estate: Agricultural 3,651 1,496 Commercial and industrial 317 4,826 Consumer and other 61 81 Total Non-Real Estate 4,029 6,403 Total Nonaccrual Loans $ 8,743 $ 12,550
Credit Exposure of Loan Portfolio, Including Loans Acquired with Deteriorated Credit Quality, by Specific Credit Ratings	The following table identifies the credit exposure of the loan portfolio, including loans acquired with deteriorated credit quality, by specific credit ratings as of the dates indicated: As of December 31, 2018 As of December 31, 2017 (in thousands) Pass Special Mention Substandard Doubtful Total Pass Special Mention Substandard Doubtful Total Real Estate: Construction & land development $ 116,062 $ 5,698 $ 2,884 $ — $ 124,644 $ 108,291 $ 125 $ 4,187 $ — $ 112,603 Farmland 13,151 3,888 1,362 — 18,401 25,030 569 92 — 25,691 1- 4 family 160,581 2,815 9,364 — 172,760 149,428 1,856 7,449 — 158,733 Multifamily 35,554 — 7,364 — 42,918 9,366 639 6,835 — 16,840 Non-farm non-residential 564,993 2,888 17,859 523 586,263 511,239 2,490 16,564 — 530,293 Total Real Estate 890,341 15,289 38,833 523 944,986 803,354 5,679 35,127 — 844,160 Non-Real Estate: Agricultural 19,050 43 4,015 — 23,108 19,050 995 1,469 — 21,514 Commercial and industrial 186,176 10,930 3,771 — 200,877 201,962 19,187 4,929 4,560 230,638 Consumer and other 59,119 151 173 — 59,443 48,225 68 6,892 — 55,185 Total Non-Real Estate 264,345 11,124 7,959 — 283,428 269,237 20,250 13,290 4,560 307,337 Total Loans Before Unearned Income $ 1,154,686 $ 26,413 $ 46,792 $ 523 1,228,414 $ 1,072,591 $ 25,929 $ 48,417 $ 4,560 1,151,497 Unearned income (3,146 ) (2,483 ) Total Loans Net of Unearned Income $ 1,225,268 $ 1,149,014
Carrying Amount of Purchased Impaired Loans	The carrying amount of those loans is as follows at December 31, 2018 and 2017 . (in thousands) As of December 31, 2018 As of December 31, 2017 Real Estate: Construction & land development $ — $ 1,135 Farmland 1 8 1- 4 family 48 50 Multifamily — — Non-farm non-residential 2,301 2,148 Total Real Estate 2,350 3,341 Non-Real Estate: Agricultural — — Commercial and industrial 909 1,017 Consumer and other — — Total Non-Real Estate 909 1,017 Total $ 3,259 $ 4,358
Accretable Yield, or Income Expected to be Collected, on Purchased Loans	The accretable yield, or income expected to be collected, on the purchased loans above is as follows for the years ended December 31, 2018 and 2017 . (in thousands) Year Ended December 31, 2018 Year Ended December 31, 2017 Balance, beginning of period $ 1,031 $ — Acquisition accretable yield — 1,195 Accretion (418 ) (164 ) Net transfers from nonaccretable difference to accretable yield — — Balance, end of period $ 613 $ 1,031

Allowance for Loan Losses (Tabl

Allowance for Loan Losses (Tables)	12 Months Ended
	Dec. 31, 2018
Allowance for Loan Losses [Abstract]
Summary of Changes in Allowance for Loan Losses and Allowance and Loans Individually and Collectively Evaluated for Impairment	A summary of changes in the allowance for loan losses, by loan type, for the years ended December 31, 2018 , 2017 and 2016 are as follows: As of December 31, 2018 2017 (in thousands) Beginning Allowance (12/31/17) Charge-offs Recoveries Provision Ending Allowance (12/31/18) Beginning Allowance (12/31/16) Charge-offs Recoveries Provision Ending Allowance (12/31/17) Real Estate: Construction & land development $ 628 $ — $ 3 $ (50 ) $ 581 $ 1,232 $ — $ 43 $ (647 ) $ 628 Farmland 5 — — 36 41 19 — — (14 ) 5 1- 4 family 1,078 (99 ) 90 (158 ) 911 1,204 (33 ) 92 (185 ) 1,078 Multifamily 994 — 20 304 1,318 591 — 40 363 994 Non-farm non-residential 2,811 (404 ) 89 2,275 4,771 3,451 (1,291 ) 85 566 2,811 Total Real Estate 5,516 (503 ) 202 2,407 7,622 6,497 (1,324 ) 260 83 5,516 Non-Real Estate: Agricultural 187 (300 ) 26 426 339 74 (162 ) 138 137 187 Commercial and industrial 2,377 (179 ) 1,642 (1,931 ) 1,909 3,543 (3,629 ) 30 2,433 2,377 Consumer and other 1,125 (907 ) 216 457 891 972 (1,247 ) 223 1,177 1,125 Unallocated 20 — — (5 ) 15 28 — — (8 ) 20 Total Non-Real Estate 3,709 (1,386 ) 1,884 (1,053 ) 3,154 4,617 (5,038 ) 391 3,739 3,709 Total $ 9,225 $ (1,889 ) $ 2,086 $ 1,354 $ 10,776 $ 11,114 $ (6,362 ) $ 651 $ 3,822 $ 9,225 As of December 31, 2016 (in thousands) Beginning Allowance (12/31/15) Charge-offs Recoveries Provision Ending Allowance (12/31/16) Real Estate: Construction & land development $ 962 $ — $ 4 $ 266 $ 1,232 Farmland 54 — — (35 ) 19 1- 4 family 1,771 (244 ) 45 (368 ) 1,204 Multifamily 557 — 401 (367 ) 591 Non-farm non-residential 3,298 (1,373 ) 16 1,510 3,451 Total Real Estate 6,642 (1,617 ) 466 1,006 6,497 Non-Real Estate: Agricultural 16 (83 ) 113 28 74 Commercial and industrial 2,527 (579 ) 146 1,449 3,543 Consumer and other 230 (635 ) 183 1,194 972 Unallocated — — — 28 28 Total Non-Real Estate 2,773 (1,297 ) 442 2,699 4,617 Total $ 9,415 $ (2,914 ) $ 908 $ 3,705 $ 11,114 A summary of the allowance and loans, including loans acquired with deteriorated credit quality, individually and collectively evaluated for impairment are as follows: As of December 31, 2018 (in thousands) Allowance Individually Evaluated for Impairment Allowance Individually Evaluated for Purchased Credit-Impairment Allowance Collectively Evaluated for Impairment Total Allowance for Credit Losses Loans Individually Evaluated for Impairment Loans Individually Evaluated for Purchased Credit-Impairment Loans Collectively Evaluated for Impairment Total Loans before Unearned Income Real Estate: Construction & land development $ 38 $ — $ 543 $ 581 $ 304 $ — $ 124,340 $ 124,644 Farmland — — 41 41 552 1 17,848 18,401 1- 4 family — — 911 911 631 48 172,081 172,760 Multifamily — — 1,318 1,318 — — 42,918 42,918 Non-farm non-residential 1,152 — 3,619 4,771 4,881 2,301 579,081 586,263 Total Real Estate 1,190 — 6,432 7,622 6,368 2,350 936,268 944,986 Non-Real Estate: Agricultural — — 339 339 2,983 — 20,125 23,108 Commercial and industrial 110 — 1,799 1,909 1,088 909 198,880 200,877 Consumer and other — — 891 891 — — 59,443 59,443 Unallocated — — 15 15 — — — — Total Non-Real Estate 110 — 3,044 3,154 4,071 909 278,448 283,428 Total $ 1,300 $ — $ 9,476 $ 10,776 $ 10,439 $ 3,259 $ 1,214,716 $ 1,228,414 Unearned Income (3,146 ) Total Loans Net of Unearned Income $ 1,225,268 As of December 31, 2017 (in thousands) Allowance Individually Evaluated for Impairment Allowance Individually Evaluated for Purchased Credit-Impairment Allowance Collectively Evaluated for Impairment Total Allowance for Credit Losses Loans Individually Evaluated for Impairment Loans Individually Evaluated for Purchased Credit-Impairment Loans Collectively Evaluated for Impairment Total Loans before Unearned Income Real Estate: Construction & land development $ — $ — $ 628 $ 628 $ 334 $ 1,135 $ 111,134 $ 112,603 Farmland — — 5 5 — 8 25,683 25,691 1- 4 family — — 1,078 1,078 — 50 158,683 158,733 Multifamily — — 994 994 — — 16,840 16,840 Non-farm non-residential 236 — 2,575 2,811 8,990 2,148 519,155 530,293 Total Real Estate 236 — 5,280 5,516 9,324 3,341 831,495 844,160 Non-Real Estate: Agricultural 66 — 121 187 861 — 20,653 21,514 Commercial and industrial 565 — 1,812 2,377 5,731 1,017 223,890 230,638 Consumer and other — — 1,125 1,125 — — 55,185 55,185 Unallocated — — 20 20 — — — — Total Non-Real Estate 631 — 3,078 3,709 6,592 1,017 299,728 307,337 Total $ 867 $ — $ 8,358 $ 9,225 $ 15,916 $ 4,358 $ 1,131,223 $ 1,151,497 Unearned Income (2,483 ) Total Loans Net of Unearned Income $ 1,149,014
Summary of Impaired Loans, Excluding Loans Acquired with Deteriorated Credit Quality, by Class	The following is a summary of impaired loans, excluding loans acquired with deteriorated credit quality, by class at December 31, 2018 : As of December 31, 2018 (in thousands) Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Interest Income Recognized Interest Income Cash Basis Impaired Loans with no related allowance: Real Estate: Construction & land development $ — $ — $ — $ — $ — $ — Farmland — — — — — — 1- 4 family 631 631 — 626 13 — Multifamily — — — — — — Non-farm non-residential 523 523 — 536 33 34 Total Real Estate 1,154 1,154 — 1,162 46 34 Non-Real Estate: Agricultural 3,535 3,613 — 3,583 173 272 Commercial and industrial — — — — — — Consumer and other — — — — — — Total Non-Real Estate 3,535 3,613 — 3,583 173 272 Total Impaired Loans with no related allowance 4,689 4,767 — 4,745 219 306 Impaired Loans with an allowance recorded: Real estate: Construction & land development — — — — — — Farmland — — — — — — 1- 4 family — — — — — — Multifamily — — — — — — Non-farm non-residential 3,070 3,070 1,150 3,104 139 139 Total Real Estate 3,070 3,070 1,150 3,104 139 139 Non-Real Estate: Agricultural — — — — — — Commercial and industrial 1,088 1,088 110 1,115 55 64 Consumer and other — — — — — — Total Non-Real Estate 1,088 1,088 110 1,115 55 64 Total Impaired Loans with an allowance recorded 4,158 4,158 1,260 4,219 194 203 Total Impaired Loans $ 8,847 $ 8,925 $ 1,260 $ 8,964 $ 413 $ 509 The following is a summary of impaired loans, excluding loans acquired with deteriorated credit quality, by class at December 31, 2017 : As of December 31, 2017 (in thousands) Recorded Investment Unpaid Principal Balance Related Allowance Average Recorded Investment Interest Income Recognized Interest Income Cash Basis Impaired Loans with no related allowance: Real Estate: Construction & land development $ — $ — $ — $ — $ — $ — Farmland — — — — — — 1- 4 family — — — — — — Multifamily — — — — — — Non-farm non-residential 5,771 5,771 — 5,933 248 279 Total Real Estate 5,771 5,771 — 5,933 248 279 Non-Real Estate: Agricultural — — — — — — Commercial and industrial — — — — — — Consumer and other — — — — — — Total Non-Real Estate — — — — — — Total Impaired Loans with no related allowance 5,771 5,771 — 5,933 248 279 Impaired Loans with an allowance recorded: Real estate: Construction & land development — — — — — — Farmland — — — — — — 1- 4 family — — — — — — Multifamily — — — — — — Non-farm non-residential 3,219 3,570 236 3,555 183 127 Total Real Estate 3,219 3,570 236 3,555 183 127 Non-Real Estate: Agricultural 861 920 66 1,117 70 17 Commercial and industrial 5,731 9,062 565 8,121 65 84 Consumer and other — — — — — — Total Non-Real Estate 6,592 9,982 631 9,238 135 101 Total Impaired Loans with an allowance recorded 9,811 13,552 867 12,793 318 228 Total Impaired Loans $ 15,582 $ 19,323 $ 867 $ 18,726 $ 566 $ 507
Troubled Debt Restructurings	The following table is an age analysis of TDRs as of December 31, 2018 and December 31, 2017 : December 31, 2018 December 31, 2017 Accruing Loans Accruing Loans (in thousands) Current 30-89 Days Past Due Nonaccrual Total TDRs Current 30-89 Days Past Due Nonaccrual Total TDRs Real Estate: Construction & land development $ — $ — $ 304 $ 304 $ — $ — $ 334 $ 334 Farmland — — — — — — — — 1- 4 family — — — — — — — — Multifamily — — — — — — — — Non-farm non-residential 1,288 — — 1,288 2,138 — — 2,138 Total Real Estate 1,288 — 304 1,592 2,138 — 334 2,472 Non-Real Estate: Agricultural — — — — — — — — Commercial and industrial — — — — — — — — Consumer and other — — — — — — — — Total Non-Real Estate — — — — — — — — Total $ 1,288 $ — $ 304 $ 1,592 $ 2,138 $ — $ 334 $ 2,472 The following table discloses TDR activity for the twelve months ended December 31, 2018 . Trouble Debt Restructured Loans Activity Twelve Months Ended December 31, 2018 (in thousands) Beginning balance (December 31, 2017) New TDRs Charge-offs post-modification Transferred to ORE Paydowns Construction to permanent financing Restructured to market terms Other adjustments Ending balance (December 31, 2018) Real Estate: Construction & land development $ 334 $ — $ — $ — $ (30 ) $ — $ — $ — $ 304 Farmland — — — — — — — — — 1- 4 family — — — — — — — — — Multifamily — — — — — — — — — Non-farm non-residential 2,138 — — — (850 ) — — — 1,288 Total Real Estate 2,472 — — — (880 ) — — — 1,592 Non-Real Estate: Agricultural — — — — — — — — — Commercial and industrial — — — — — — — — — Consumer and other — — — — — — — — — Total Non-Real Estate — — — — — — — — — Total Impaired Loans with no related allowance $ 2,472 $ — $ — $ — $ (880 ) $ — $ — $ — $ 1,592

Premises and Equipment (Tables)

Premises and Equipment (Tables)	12 Months Ended
	Dec. 31, 2018
Property, Plant and Equipment [Abstract]
Premises and Equipment	The components of premises and equipment at December 31, 2018 and 2017 are as follows: (in thousands) December 31, 2018 December 31, 2017 Land $ 12,875 $ 12,875 Bank premises 33,457 32,687 Furniture and equipment 25,453 24,305 Construction in progress 2,046 382 Acquired value 73,831 70,249 Less: accumulated depreciation 34,136 32,229 Net book value $ 39,695 $ 38,020

Goodwill and Other Intangible_2

Goodwill and Other Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2018
Goodwill and Intangible Assets Disclosure [Abstract]
Finite-lived Intangible Assets	The following table summarizes intangible assets subject to amortization. December 31, 2018 December 31, 2017 (in thousands) Gross Carrying Amount Accumulated Amortization Net Carrying Amount Gross Carrying Amount Accumulated Amortization Net Carrying Amount Core deposit intangibles $ 12,053 $ 9,349 $ 2,704 $ 12,053 $ 8,804 $ 3,249 Loan servicing assets 1,441 617 824 1,373 198 1,175 Total $ 13,494 $ 9,966 $ 3,528 $ 13,426 $ 9,002 $ 4,424
Amortization Expense of Core Deposit Intangible Assets for Next Five Years	Amortization expense of the core deposit intangible assets for the next five years is as follows: For the Years Ended Estimated Amortization Expense (in thousands) December 31, 2019 $ 361 December 31, 2020 $ 361 December 31, 2021 $ 293 December 31, 2022 $ 225 December 31, 2023 $ 225

Other Real Estate (Tables)

Other Real Estate (Tables)	12 Months Ended
	Dec. 31, 2018
Real Estate [Abstract]
Components of Other Real Estate Owned	Other real estate owned consists of the following at the dates indicated: (in thousands) December 31, 2018 December 31, 2017 Real Estate Owned Acquired by Foreclosure: Residential $ 120 $ 23 Construction & land development 241 304 Non-farm non-residential 777 954 Total Other Real Estate Owned and Foreclosed Property $ 1,138 $ 1,281

Deposits (Tables)

Deposits (Tables)	12 Months Ended
	Dec. 31, 2018
Deposits [Abstract]
Schedule of Maturities of All Time Deposits	A schedule of maturities of all time deposits are as follows: (in thousands) December 31, 2018 2019 $ 417,005 2020 106,655 2021 28,268 2022 45,355 2023 and thereafter 83,506 Total $ 680,789

Borrowings (Tables)

Borrowings (Tables)	12 Months Ended
	Dec. 31, 2018
Debt Disclosure [Abstract]
Schedule of Short-term Borrowings	Short-term borrowings are summarized as follows: (in thousands) December 31, 2018 December 31, 2017 Federal Home Loan Bank advances $ — $ 15,500 Line of credit — — Total short-term borrowings $ — $ 15,500
Short-term Borrowings	The following schedule provides certain information about First Guaranty's short-term borrowings for the periods indicated: December 31, (in thousands except for %) 2018 2017 2016 Outstanding at year end $ — $ 15,500 $ 6,500 Maximum month-end outstanding $ 37,000 $ 28,000 $ 25,000 Average daily outstanding $ 7,119 $ 5,833 $ 8,775 Weighted average rate during the year 2.21 % 1.06 % 0.85 % Weighted average rate at year end — % 1.51 % 0.65 %
Obligations on Senior Long-term Debt and Junior Subordinated Debentures	As of December 31, 2018 obligations on senior long-term debt and junior subordinated debentures totaled $34.5 million . The scheduled maturities are as follows: (in thousands) Senior Long-term Debt Junior Subordinated Debentures 2019 $ 2,941 $ — 2020 16,912 — 2021 — — 2022 — — 2023 — — 2024 and thereafter — 15,000 Subtotal $ 19,853 $ 15,000 Debt issuance costs (15 ) (300 ) Total $ 19,838 $ 14,700

Capital Requirements (Tables)

Capital Requirements (Tables)	12 Months Ended
	Dec. 31, 2018
Banking and Thrift [Abstract]
Actual and Required Capital Amounts and Ratios	First Guaranty Bank's actual capital amounts and ratios as of December 31, 2018 and 2017 are presented in the following table. Actual Minimum Capital Requirements Minimum to be Well Capitalized Under Action Provisions (in thousands except for %) Amount Ratio Amount Ratio Amount Ratio December 31, 2018 Total Risk-based Capital: Consolidated N/A N/A N/A N/A N/A N/A Bank $ 181,618 12.97 % $ 112,055 8.00 % $ 140,069 10.00 % Tier 1 Capital: Consolidated N/A N/A N/A N/A N/A N/A Bank $ 170,842 12.20 % $ 84,041 6.00 % $ 112,055 8.00 % Tier 1 Leverage Capital: Consolidated N/A N/A N/A N/A N/A N/A Bank $ 170,842 9.79 % $ 69,822 4.00 % $ 87,277 5.00 % Common Equity Tier One Capital: Consolidated N/A N/A N/A N/A N/A N/A Bank $ 170,842 12.20 % $ 63,031 4.50 % $ 91,045 6.50 % December 31, 2017 Total Risk-based Capital: Consolidated $ 164,545 12.14 % $ 108,427 8.00 % N/A N/A Bank $ 176,398 13.07 % $ 107,961 8.00 % $ 134,951 10.00 % Tier 1 Capital: Consolidated $ 140,320 10.35 % $ 81,320 6.00 % N/A N/A Bank $ 167,173 12.39 % $ 80,971 6.00 % $ 107,961 8.00 % Tier 1 Leverage Capital: Consolidated $ 140,320 8.27 % $ 67,899 4.00 % N/A N/A Bank $ 167,173 9.88 % $ 67,709 4.00 % $ 84,636 5.00 % Common Equity Tier One Capital: Consolidated $ 140,320 10.35 % $ 60,990 4.50 % N/A N/A Bank $ 167,173 12.39 % $ 60,728 4.50 % $ 87,718 6.50 %

Related Party Transactions (Tab

Related Party Transactions (Tables)	12 Months Ended
	Dec. 31, 2018
Related Party Transactions [Abstract]
Schedule of Related Party Transactions	An analysis of the activity of loans made to such borrowers during the year ended December 31, 2018 and 2017 follows: December 31, (in thousands) 2018 2017 Balance, beginning of year $ 82,918 $ 58,279 Net (Decrease) Increase (19,011 ) 24,639 Balance, end of year $ 63,907 $ 82,918

Other Expenses (Tables)

Other Expenses (Tables)	12 Months Ended
	Dec. 31, 2018
Other Expenses [Abstract]
Summary of Significant Components of Other Noninterest Expense	The following is a summary of the significant components of other noninterest expense: December 31, (in thousands) 2018 2017 2016 Other noninterest expense: Legal and professional fees $ 2,362 $ 3,049 $ 2,185 Data processing 1,692 1,608 1,259 ATM Fees 1,214 1,161 1,044 Marketing and public relations 1,329 1,205 878 Taxes - sales, capital and franchise 1,066 970 787 Operating supplies 562 496 471 Software expense and amortization 1,119 923 835 Travel and lodging 978 910 710 Telephone 208 167 177 Amortization of core deposits 545 432 320 Donations 380 322 298 Net costs from other real estate and repossessions 186 306 498 Regulatory assessment 941 726 1,005 Other 2,204 1,628 1,599 Total other noninterest expense $ 14,786 $ 13,903 $ 12,066

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2018
Income Tax Disclosure [Abstract]
Summary of Provision for Income Taxes	The following is a summary of the provision for income taxes included in the Consolidated Statements of Income: December 31, (in thousands) 2018 2017 2016 Current $ 3,929 $ 4,638 $ 8,168 Deferred (467 ) 2,761 (1,004 ) Total $ 3,462 $ 7,399 $ 7,164
Effective Income Tax Rate Reconciliation	The difference between income taxes computed by applying the statutory federal income tax rate and the provision for income taxes in the financial statements is reconciled as follows: December 31, (in thousands except for %) 2018 2017 2016 Statutory tax rate 21.0 % 35.0 % 35.0 % Federal income taxes at statutory rate $ 3,712 $ 6,703 $ 7,440 Tax exempt municipal income (166 ) (254 ) (283 ) Other (1) (84 ) 950 7 Total $ 3,462 $ 7,399 $ 7,164
Components of Deferred Tax Assets and Liabilities	The significant components of deferred taxes classified in First Guaranty's Consolidated Balance Sheets at December 31, 2018 and 2017 are as follows: December 31, (in thousands) 2018 2017 Deferred tax assets: Allowance for loan losses $ 2,159 $ 1,804 Other real estate owned 28 25 Unrealized losses on available for sale securities 1,897 495 Net operating loss 1,374 1,463 Other 456 546 Gross deferred tax assets 5,914 4,333 Deferred tax liabilities: Depreciation and amortization (1,537 ) (1,688 ) Core deposit intangibles (552 ) (662 ) Other (589 ) (566 ) Gross deferred tax liabilities (2,678 ) (2,916 ) Net deferred tax assets $ 3,236 $ 1,417

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2018
Commitments and Contingencies Disclosure [Abstract]
Summary of Notional Amounts of Financial Instruments with Off-Balance Sheet Risk	Set forth below is a summary of the notional amounts of the financial instruments with off-balance sheet risk at December 31, 2018 and December 31, 2017 . Contract Amount December 31, 2018 December 31, 2017 (in thousands) Commitments to Extend Credit $ 108,348 $ 78,125 Unfunded Commitments under lines of credit $ 122,212 $ 101,344 Commercial and Standby letters of credit $ 6,912 $ 7,886

Fair Value Measurements (Tables

Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2018
Fair Value Disclosures [Abstract]
Fair Value, Assets Measured on Recurring Basis	The following table summarizes financial assets measured at fair value on a recurring basis as of December 31, 2018 and 2017 , segregated by the level of the valuation inputs within the fair value hierarchy utilized to measure fair value: (in thousands) December 31, 2018 December 31, 2017 Available for Sale Securities Fair Value Measurements Using: Level 1: Quoted Prices in Active Markets For Identical Assets $ 483 $ 19,980 Level 2: Significant Other Observable Inputs 291,733 355,022 Level 3: Significant Unobservable Inputs 4,761 6,533 Securities available for sale measured at fair value $ 296,977 $ 381,535
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation	The following table reconciles assets measured at fair value on a recurring basis using unobservable inputs ( Level 3 ): Level 3 Changes (in thousands) December 31, 2018 December 31, 2017 Balance, beginning of year $ 6,533 $ 19,400 Total gains or losses (realized/unrealized): Included in earnings (15 ) 54 Included in other comprehensive income (79 ) — Purchases, sales, issuances and settlements, net (1,886 ) 10,574 Transfers in and/or out of Level 3 208 (23,495 ) Balance as of end of year $ 4,761 $ 6,533
Fair Value Measurements, Nonrecurring	The following table measures financial assets and financial liabilities measured at fair value on a non-recurring basis as of December 31, 2018 , segregated by the level of valuation inputs within the fair value hierarchy utilized to measure fair value: (in thousands) At December 31, 2018 At December 31, 2017 Fair Value Measurements Using: Impaired Loans Level 1: Quoted Prices in Active Markets For Identical Assets $ — $ — Level 2: Significant Other Observable Inputs — — Level 3: Significant Unobservable Inputs 3,620 12,003 Impaired loans measured at fair value $ 3,620 $ 12,003 Fair Value Measurements Using: Other Real Estate Owned Level 1: Quoted Prices in Active Markets For Identical Assets $ — $ — Level 2: Significant Other Observable Inputs 1,012 1,249 Level 3: Significant Unobservable Inputs 126 32 Other real estate owned measured at fair value $ 1,138 $ 1,281

Financial Instruments (Tables)

Financial Instruments (Tables)	12 Months Ended
	Dec. 31, 2018
Financial Instruments, Owned, at Fair Value [Abstract]
Schedule of Estimated Fair Values and Carrying Values of Financial Instruments	The estimated fair values and carrying values of the financial instruments at December 31, 2018 and 2017 are presented in the following table: December 31, 2018 2017 (in thousands) Carrying Value Estimated Fair Value Carrying Value Estimated Fair Value Assets Cash and cash equivalents $ 127,965 $ 127,965 $ 38,028 $ 38,028 Securities, available for sale $ 296,977 $ 296,977 $ 381,535 $ 381,535 Securities, held to maturity $ 108,326 $ 104,840 $ 120,121 $ 118,557 Federal Home Loan Bank stock $ 2,393 $ 2,393 $ 2,351 $ 2,351 Loans held for sale $ 344 $ 379 $ 1,308 $ 1,439 Loans, net $ 1,214,492 $ 1,193,886 $ 1,139,789 $ 1,133,868 Accrued interest receivable $ 6,716 $ 6,716 $ 7,982 $ 7,982 Liabilities Deposits $ 1,629,622 $ 1,625,827 $ 1,549,286 $ 1,549,449 Borrowings $ 19,838 $ 19,853 $ 38,274 $ 38,294 Junior subordinated debentures $ 14,700 $ 14,537 $ 14,664 $ 14,324 Accrued interest payable $ 3,952 $ 3,952 $ 2,488 $ 2,488

Condensed Parent Company Info_2

Condensed Parent Company Information (Tables)	12 Months Ended
	Dec. 31, 2018
Condensed Financial Information Disclosure [Abstract]
Condensed Balance Sheets	First Guaranty Bancshares, Inc. Condensed Balance Sheets December 31, (in thousands) 2018 2017 Assets Cash $ 8,069 $ 5,214 Investment in bank subsidiary 169,880 170,836 Investment Securities (available for sale, at fair value) — — Other assets 4,724 6,086 Total Assets $ 182,673 $ 182,136 Liabilities and Shareholders' Equity Short-term debt $ — $ — Senior long-term debt 19,838 22,774 Junior subordinated debentures 14,700 14,664 Other liabilities 851 715 Total Liabilities 35,389 38,153 Shareholders' Equity 147,284 143,983 Total Liabilities and Shareholders' Equity $ 182,673 $ 182,136
Condensed Statements of Income	First Guaranty Bancshares, Inc. Condensed Statements of Income December 31, (in thousands) 2018 2017 2016 Operating Income Dividends received from bank subsidiary $ 11,788 $ 10,622 $ 11,858 Net gains on securities — 54 — Other income 289 171 160 Total operating income 12,077 10,847 12,018 Operating Expenses Interest expense 1,675 1,518 1,444 Salaries & Benefits 133 495 200 Other expenses 916 1,147 948 Total operating expenses 2,724 3,160 2,592 Income before income tax benefit and increase in equity in undistributed earnings of subsidiary 9,353 7,687 9,426 Income tax benefit 540 834 846 Income before increase in equity in undistributed earnings of subsidiary 9,893 8,521 10,272 Increase in equity in undistributed earnings of subsidiary 4,320 3,230 3,821 Net Income $ 14,213 $ 11,751 $ 14,093
Condensed Statements of Cash Flows	First Guaranty Bancshares, Inc. Condensed Statements of Cash Flows December 31, (in thousands) 2018 2017 2016 Cash flows from operating activities: Net income $ 14,213 $ 11,751 $ 14,093 Adjustments to reconcile net income to net cash provided by operating activities: Increase in equity in undistributed earnings of subsidiary (4,320 ) (3,230 ) (3,821 ) Depreciation and amortization 43 43 7 Gain on sale of securities — (54 ) — Net change in other liabilities 136 187 318 Net change in other assets 1,360 (1,306 ) (971 ) Net cash provided by operating activities 11,432 7,391 9,626 Cash flows from investing activities: Proceeds from maturities, calls and sales of AFS securities — 134 — Funds invested in AFS securities — — — Funds invested in bank subsidiary — (3,750 ) — Cash paid in acquisition — (10,108 ) — Net cash used in investing activities — (13,724 ) — Cash flows from financing activities: Net decrease in short-term borrowings — — (1,800 ) Proceeds from long-term debt, net of costs — 3,750 — Repayment of long-term debt (2,941 ) (3,081 ) (3,730 ) Proceeds from junior subordinated debentures, net of costs — — — Issuance of common stock, net of costs — — — Redemption of preferred stock — — — Dividends paid (5,636 ) (5,210 ) (4,870 ) Net cash used in financing activities (8,577 ) (4,541 ) (10,400 ) Net increase (decrease) in cash and cash equivalents 2,855 (10,874 ) (774 ) Cash and cash equivalents at the beginning of the period 5,214 16,088 16,862 Cash and cash equivalents at the end of the period $ 8,069 $ 5,214 $ 16,088

Business and Summary of Signi_3

Business and Summary of Significant Accounting Policies (Details)	Dec. 14, 2017	Dec. 31, 2018USD ($)SegmentATMPaymentOfficeFacility	Dec. 31, 2017
Accounting Policies [Abstract]
Number of banking offices | Office		27
Number of drive up banking facility | Facility		1
Number of automated teller machines (ATMs) | ATM		36
Acquisition Accounting [Abstract]
Maximum period of fair value refinement after closing date of acquisition		1 year
Loans [Abstract]
Past due period after which evaluation is made for discontinuation of interest accrual on loan		90 days
Period of payment performance after which loans are returned to accrual status		6 months
Troubled Debt Restructurings (TDRs) [Abstract]
Period of performance, after which the Company evaluates TDRs that have subsequently been restructured and returned to market terms		6 months
Credit Quality [Abstract]
Minimum balance of impaired loans over which impairment method is applied | $		$ 500,000
Earnings per common share [Abstract]
Common stock, dividend paid percentage	10.00%		10.00%
Segment Reporting, Disclosure of Entity's Reportable Segments [Abstract]
Number of reportable operating segments | Segment		1
Minimum
Loans [Abstract]
Threshold period past due for charge-off of loans		90 days
Maximum
Loans [Abstract]
Threshold period past due for charge-off of loans		120 days
Single-Family Residential | Fixed Rate Residential Mortgage
Loans Receivable Held-for-sale, Net, Not Part of Disposal Group [Abstract]
Period within which loans are sold in secondary market		30 days
All Loans Except Mortgage Loans
Loans [Abstract]
Past due period after which loans are considered past due		30 days
Mortgage Loans
Loans [Abstract]
Number of consecutive payments missed after which loans are considered past due | Payment		2
Building and Building Improvements | Minimum
Premises and equipment [Abstract]
Estimated useful life		10 years
Building and Building Improvements | Maximum
Premises and equipment [Abstract]
Estimated useful life		40 years
Equipment, Fixtures and Automobiles | Minimum
Premises and equipment [Abstract]
Estimated useful life		3 years
Equipment, Fixtures and Automobiles | Maximum
Premises and equipment [Abstract]
Estimated useful life		10 years
Core Deposits | Minimum
Finite-Lived Intangible Assets [Line Items]
Amortization period		7 years
Core Deposits | Maximum
Finite-Lived Intangible Assets [Line Items]
Amortization period		15 years
Consumer Portfolio Segment
Credit Quality [Abstract]
Period past due after which loans are considered substandard		90 days

Recent Accounting Pronounceme_2

Recent Accounting Pronouncements (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018USD ($)	[1]
Change in Accounting Estimate [Line Items]
Reclassification of stranded tax effects in accumulated other comprehensive income	$ 0
Retained Earnings
Change in Accounting Estimate [Line Items]
Reclassification of stranded tax effects in accumulated other comprehensive income	$ 306
[1]	See Note 2 - Recent Accounting Pronouncements

Merger Transaction (Details)

Merger Transaction (Details) - USD ($) $ / shares in Units, $ in Thousands	Dec. 14, 2017	Jun. 16, 2017	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017
Business Acquisition [Line Items]
Common stock, dividend paid percentage	10.00%				10.00%
Goodwill			$ 3,472	$ 3,472	$ 3,472
Goodwill adjustments				$ 0
Premier Bancshares, Inc.
Business Acquisition [Line Items]
Percentage of outstanding shares acquired		100.00%
Number of shares of common stock issued for each share of acquired entity (in shares)		0.119
Total number of shares of common stock issued in acquisition (in shares)		397,988
Share price (in dollars per share)		$ 25.86
Common stock, dividend paid percentage			10.00%
Acquisition value paid in cash		$ 10,300
Net assets acquired		20,954
Goodwill		1,474
Intangible assets		3,809
Premier Bancshares, Inc. | Core Deposits
Business Acquisition [Line Items]
Intangible assets		$ 2,700

Merger Transaction - Fair Value

Merger Transaction - Fair Value of Assets and Liabilities Assumed (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Jun. 16, 2017
Business Acquisition [Line Items]
Goodwill	$ 3,472	$ 3,472
Premier Bancshares, Inc.
Business Acquisition [Line Items]
Cash and due from banks			$ 4,542
Federal funds sold			2,855
Securities available for sale			5,892
Loans			128,018
Premises and equipment			9,493
Goodwill			1,474
Intangible assets			3,809
Other real estate			221
Other assets			2,009
Total assets acquired			158,313
Deposits			127,228
FHLB borrowings			9,700
Other liabilities			431
Total liabilities assumed			137,359
Net assets acquired			$ 20,954

Merger Transaction - Pro Forma

Merger Transaction - Pro Forma information (Details) - Premier Bancshares, Inc. - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Business Acquisition [Line Items]
Net Interest Income	$ 55,663	$ 53,190
Noninterest Income	8,540	11,541
Noninterest Expense	42,434	39,395
Net Income	$ 10,885	$ 13,709
Earnings per common share (in dollars per share)	$ 1.24	$ 1.56

Cash and Due from Banks (Detail

Cash and Due from Banks (Details)	Dec. 31, 2018USD ($)Account	Dec. 31, 2017USD ($)Account
Cash and Cash Equivalents [Abstract]
Reserve maintained at Federal Reserve Bank	$ 0	$ 0
Number of accounts that exceeded FDIC insurable limit | Account	1	1
FDIC insurable limit	$ 250,000	$ 250,000
Balance in excess of FDIC insurable limit	$ 127,000	$ 630,000

Securities - Summary Comparison

Securities - Summary Comparison of Securities by Type (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Available for sale:
Amortized Cost	$ 306,012	$ 383,893
Gross Unrealized Gains	1,192	3,095
Gross Unrealized Losses	(10,227)	(5,453)
Available for sale, at fair value	296,977	381,535
Held to maturity:
Amortized cost	108,326	120,121
Gross unrealized gains	0	21
Gross unrealized losses	(3,486)	(1,585)
Fair value	104,840	118,557
U.S. Treasuries
Available for sale:
Amortized Cost	0	19,490
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	(4)
Available for sale, at fair value	0	19,486
U.S. Government Agencies
Available for sale:
Amortized Cost	146,911	200,052
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(5,522)	(4,069)
Available for sale, at fair value	141,389	195,983
Corporate debt securities
Available for sale:
Amortized Cost	76,310	91,770
Gross Unrealized Gains	72	661
Gross Unrealized Losses	(3,504)	(946)
Available for sale, at fair value	72,878	91,485
Mutual funds or other equity securities
Available for sale:
Amortized Cost	483	500
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	(7)
Available for sale, at fair value	483	493
Municipal bonds
Available for sale:
Amortized Cost	32,956	37,210
Gross Unrealized Gains	1,120	2,434
Gross Unrealized Losses	(175)	(75)
Available for sale, at fair value	33,901	39,569
Held to maturity:
Amortized cost	5,227	5,322
Gross unrealized gains	0	15
Gross unrealized losses	(101)	(12)
Fair value	5,126	5,325
Collateralized mortgage obligations
Available for sale:
Amortized Cost	918	1,191
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(14)	(6)
Available for sale, at fair value	904	1,185
Mortgage-backed securities
Available for sale:
Amortized Cost	48,434	33,680
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(1,012)	(346)
Available for sale, at fair value	47,422	33,334
Held to maturity:
Amortized cost	74,927	86,630
Gross unrealized gains	0	6
Gross unrealized losses	(2,304)	(903)
Fair value	72,623	85,733
U.S. Government Agencies
Held to maturity:
Amortized cost	28,172	28,169
Gross unrealized gains	0	0
Gross unrealized losses	(1,081)	(670)
Fair value	$ 27,091	$ 27,499

Securities - Scheduled Maturiti

Securities - Scheduled Maturities of Securities by Contractual Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Available for Sale Securities, Debt Maturities, Amortized Cost [Abstract]
Due in one year or less	$ 3,035
Due after one year through five years	55,844
Due after five years through 10 years	180,855
Over 10 years	16,926
Subtotal	256,660
Amortized cost	306,012
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Due in one year or less	3,048
Due after one year through five years	54,601
Due after five years through 10 years	174,307
Over 10 years	16,695
Subtotal	248,651
Fair value	296,977
Debt Securities, Held-to-maturity, Maturity, Amortized Cost [Abstract]
Due in one year or less	0
Due after one year through five years	7,248
Due after five years through 10 years	17,339
Over 10 years	8,812
Subtotal	33,399
Mortgage-backed Securities	74,927
Amortized cost	108,326	$ 120,121
Debt Securities, Held-to-maturity, Maturity, Fair Value [Abstract]
Due in one year or less	0
Due after one year through five years	7,074
Due after five years through 10 years	16,545
Over 10 years	8,598
Subtotal	32,217
Mortgage-backed Securities	72,623
Fair value	104,840	118,557
Collateralized mortgage obligations
Available for Sale Securities, Debt Maturities, Amortized Cost [Abstract]
Without single maturity date	918
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Without single maturity date	904
Mortgage-backed securities
Available for Sale Securities, Debt Maturities, Amortized Cost [Abstract]
Without single maturity date	48,434
Debt Securities, Available-for-sale, Fair Value, Fiscal Year Maturity [Abstract]
Without single maturity date	47,422
Debt Securities, Held-to-maturity, Maturity, Amortized Cost [Abstract]
Amortized cost	74,927	86,630
Debt Securities, Held-to-maturity, Maturity, Fair Value [Abstract]
Fair value	$ 72,623	$ 85,733

Securities - Summary of Securit

Securities - Summary of Securities in Continuous Unrealized Loss Position (Details) $ in Thousands	Dec. 31, 2018USD ($)Security	Dec. 31, 2017USD ($)Security
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, number of securities | Security	55	132
Less than 12 months, fair value	$ 33,355	$ 122,124
Less than 12 months, gross unrealized losses	$ (598)	$ (885)
12 months or more, number of securities | Security	295	118
12 months or more, fair value	$ 233,348	$ 175,202
12 months or more, gross unrealized losses	$ (9,629)	$ (4,568)
Total, number of securities | Security	350	250
Total, fair value	$ 266,703	$ 297,326
Total, gross unrealized losses	$ (10,227)	$ (5,453)
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, number of securities | Security	0	45
Less than 12 months, fair value	$ 0	$ 67,302
Less than 12 months, gross unrealized losses	$ 0	$ (602)
12 months or more, number of securities | Security	(79)	(27)
12 months or more, fair value	$ 104,840	$ 44,426
12 months or more, gross unrealized losses	$ (3,486)	$ (983)
Total, number of securities | Security	79	72
Total, fair value	$ 104,840	$ 111,728
Total, gross unrealized losses	$ (3,486)	$ (1,585)
U.S. Treasuries
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, number of securities | Security	0	6
Less than 12 months, fair value	$ 0	$ 19,486
Less than 12 months, gross unrealized losses	$ 0	$ (4)
12 months or more, number of securities | Security	0	0
12 months or more, fair value	$ 0	$ 0
12 months or more, gross unrealized losses	$ 0	$ 0
Total, number of securities | Security	0	6
Total, fair value	$ 0	$ 19,486
Total, gross unrealized losses	$ 0	$ (4)
U.S. Government Agencies
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, number of securities | Security	1	30
Less than 12 months, fair value	$ 4,227	$ 62,991
Less than 12 months, gross unrealized losses	$ (273)	$ (519)
12 months or more, number of securities | Security	50	36
12 months or more, fair value	$ 137,162	$ 132,992
12 months or more, gross unrealized losses	$ (5,249)	$ (3,550)
Total, number of securities | Security	51	66
Total, fair value	$ 141,389	$ 195,983
Total, gross unrealized losses	$ (5,522)	$ (4,069)
Corporate debt securities
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, number of securities | Security	37	56
Less than 12 months, fair value	$ 9,560	$ 19,050
Less than 12 months, gross unrealized losses	$ (252)	$ (240)
12 months or more, number of securities | Security	183	70
12 months or more, fair value	$ 58,877	$ 22,818
12 months or more, gross unrealized losses	$ (3,252)	$ (706)
Total, number of securities | Security	220	126
Total, fair value	$ 68,437	$ 41,868
Total, gross unrealized losses	$ (3,504)	$ (946)
Mutual funds or other equity securities
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, number of securities | Security	0	1
Less than 12 months, fair value	$ 0	$ 493
Less than 12 months, gross unrealized losses	$ 0	$ (7)
12 months or more, number of securities | Security	0	0
12 months or more, fair value	$ 0	$ 0
12 months or more, gross unrealized losses	$ 0	$ 0
Total, number of securities | Security	0	1
Total, fair value	$ 0	$ 493
Total, gross unrealized losses	$ 0	$ (7)
Municipal bonds
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, number of securities | Security	1	9
Less than 12 months, fair value	$ 115	$ 4,431
Less than 12 months, gross unrealized losses	$ 0	$ (36)
12 months or more, number of securities | Security	19	1
12 months or more, fair value	$ 8,436	$ 1,079
12 months or more, gross unrealized losses	$ (175)	$ (39)
Total, number of securities | Security	20	10
Total, fair value	$ 8,551	$ 5,510
Total, gross unrealized losses	$ (175)	$ (75)
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, number of securities | Security	0	6
Less than 12 months, fair value	$ 0	$ 3,191
Less than 12 months, gross unrealized losses	$ 0	$ (12)
12 months or more, number of securities | Security	(9)	0
12 months or more, fair value	$ 5,126	$ 0
12 months or more, gross unrealized losses	$ (101)	$ 0
Total, number of securities | Security	9	6
Total, fair value	$ 5,126	$ 3,191
Total, gross unrealized losses	$ (101)	$ (12)
Collateralized mortgage obligations
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, number of securities | Security	0	4
Less than 12 months, fair value	$ 0	$ 936
Less than 12 months, gross unrealized losses	$ 0	$ (6)
12 months or more, number of securities | Security	5	0
12 months or more, fair value	$ 904	$ 0
12 months or more, gross unrealized losses	$ (14)	$ 0
Total, number of securities | Security	5	4
Total, fair value	$ 904	$ 936
Total, gross unrealized losses	$ (14)	$ (6)
Mortgage-backed securities
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, number of securities | Security	16	26
Less than 12 months, fair value	$ 19,453	$ 14,737
Less than 12 months, gross unrealized losses	$ (73)	$ (73)
12 months or more, number of securities | Security	38	11
12 months or more, fair value	$ 27,969	$ 18,313
12 months or more, gross unrealized losses	$ (939)	$ (273)
Total, number of securities | Security	54	37
Total, fair value	$ 47,422	$ 33,050
Total, gross unrealized losses	$ (1,012)	$ (346)
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, number of securities | Security	0	35
Less than 12 months, fair value	$ 0	$ 54,186
Less than 12 months, gross unrealized losses	$ 0	$ (515)
12 months or more, number of securities | Security	(56)	(17)
12 months or more, fair value	$ 72,623	$ 26,852
12 months or more, gross unrealized losses	$ (2,304)	$ (388)
Total, number of securities | Security	56	52
Total, fair value	$ 72,623	$ 81,038
Total, gross unrealized losses	$ (2,304)	$ (903)
U.S. Government Agencies
Debt Securities, Held-to-maturity, Continuous Unrealized Loss Position [Abstract]
Less than 12 months, number of securities | Security	0	4
Less than 12 months, fair value	$ 0	$ 9,925
Less than 12 months, gross unrealized losses	$ 0	$ (75)
12 months or more, number of securities | Security	(14)	(10)
12 months or more, fair value	$ 27,091	$ 17,574
12 months or more, gross unrealized losses	$ (1,081)	$ (595)
Total, number of securities | Security	14	14
Total, fair value	$ 27,091	$ 27,499
Total, gross unrealized losses	$ (1,081)	$ (670)

Securities - Other Than Tempora

Securities - Other Than Temporary Impairments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Other-than-temporary Impairment Loss, Debt Securities, Available-for-sale, Reportable Items [Abstract]
Total OTTI charge realized and unrealized	$ 0	$ 0	$ 66
OTTI recognized in other comprehensive income (non-credit component)	0	0	6
Net impairment losses recognized in earnings (credit component)	0	0	60
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Roll Forward]
Beginning balance of credit losses at beginning of year	60	60	175
Other-than-temporary impairment credit losses on securities not previously OTTI	0	0	60
Increases for additional credit losses on securities previously determined to be OTTI	0	0	0
Reduction for increases in cash flows	0	0	0
Reduction due to credit impaired securities sold or fully settled	0	0	(175)
Ending balance of cumulative credit losses recognized in earnings at end of year	$ 60	$ 60	$ 60

Securities - Exposure to Invest

Securities - Exposure to Investment Securities Issuers That Exceeded 10 Percent of Stockholders' Equity (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Exposure to investment securities issuers that exceeded 10% of shareholders' equity [Abstract]
Amortized Cost	$ 405,303	$ 501,656
Stockholders' Equity, Total
Exposure to investment securities issuers that exceeded 10% of shareholders' equity [Abstract]
Amortized Cost	298,444
Fair Value	288,525
Stockholders' Equity, Total | Federal Home Loan Bank (FHLB)
Exposure to investment securities issuers that exceeded 10% of shareholders' equity [Abstract]
Amortized Cost	42,398
Fair Value	40,882
Stockholders' Equity, Total | Federal Home Loan Mortgage Corporation (Freddie Mac-FHLMC)
Exposure to investment securities issuers that exceeded 10% of shareholders' equity [Abstract]
Amortized Cost	47,577
Fair Value	46,399
Stockholders' Equity, Total | Federal National Mortgage Association (Fannie Mae-FNMA)
Exposure to investment securities issuers that exceeded 10% of shareholders' equity [Abstract]
Amortized Cost	94,193
Fair Value	90,973
Stockholders' Equity, Total | Federal Farm Credit Bank (FFCB)
Exposure to investment securities issuers that exceeded 10% of shareholders' equity [Abstract]
Amortized Cost	114,276
Fair Value	$ 110,271

Securities - Narrative (Details

Securities - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018USD ($)SecurityIssuer	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)Security
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Number of debt securities with unrealized losses | Security	429
Unrealized losses on debt securities in continuous loss position as percentage of total individual securities' amortized cost basis	3.60%
Unrealized losses on debt securities in continuous loss position as percentage of amortized cost basis of investment securities portfolio	3.30%
Number of debt securities in continuous loss position for over 12 months | Security	374
Debt securities in a continuous loss position for over 12 months, amortized cost basis	$ 351,300
Debt securities in a continuous loss position for over 12 months, unrealized loss	13,100
Other than temporary impairment charge on securities	0	$ 0	$ 60
Other-than-temporary impairment credit losses on securities not previously OTTI	0	0	60
Book balance of securities with credit related OTTI losses	306,012	383,893
OTTI recognized in other comprehensive income (non-credit component)	0	0	6
Carrying value of pledged securities	289,700	412,200
Gross realized gains	100	1,400	3,600
Gross realized losses	1,900	100	100
Tax (benefit) provision applicable to these realized net (losses)/gains	(400)	500	1,300
Proceeds from sales of securities	114,500	148,000	$ 191,000
Net unrealized gains (losses) on available-for-sale securities included in AOCI , net of applicable income taxes	(7,100)	(1,600)
Gains reclassified out of AOCI into earnings, net of tax	100	900
Corporate debt securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Book balance of securities with credit related OTTI losses	$ 76,310	$ 91,770
Available-for-sale Securities | Corporate debt securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Number of issuers having other-than-temporary impairment losses | Issuer	1
Available-for-sale Securities | Corporate Debt Securities One
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Number of securities with credit related OTTI losses | Security			1
Book balance of securities with credit related OTTI losses			$ 100
OTTI recognized in other comprehensive income (non-credit component)			$ 6
Available-for-sale Securities | Corporate Bond Securities
Other than Temporary Impairment, Credit Losses Recognized in Earnings [Line Items]
Number of securities with credit related OTTI losses | Security			1
Book balance of securities with credit related OTTI losses			$ 100

Loans - Components of Loan Port

Loans - Components of Loan Portfolio (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Balance
Total Loans Before Unearned Income	$ 1,228,414	$ 1,151,497
Unearned income	(3,146)	(2,483)
Total Loans Net of Unearned Income	$ 1,225,268	$ 1,149,014
As % of Category
Percent of category	100.00%	100.00%
Real Estate
Balance
Total Loans Before Unearned Income	$ 944,986	$ 844,160
As % of Category
Percent of category	76.90%	73.30%
Real Estate | Construction & land development
Balance
Total Loans Before Unearned Income	$ 124,644	$ 112,603
As % of Category
Percent of category	10.10%	9.80%
Real Estate | Farmland
Balance
Total Loans Before Unearned Income	$ 18,401	$ 25,691
As % of Category
Percent of category	1.50%	2.20%
Real Estate | 1- 4 Family
Balance
Total Loans Before Unearned Income	$ 172,760	$ 158,733
As % of Category
Percent of category	14.10%	13.80%
Real Estate | Multifamily
Balance
Total Loans Before Unearned Income	$ 42,918	$ 16,840
As % of Category
Percent of category	3.50%	1.40%
Real Estate | Non-farm non-residential
Balance
Total Loans Before Unearned Income	$ 586,263	$ 530,293
As % of Category
Percent of category	47.70%	46.10%
Non-Real Estate
Balance
Total Loans Before Unearned Income	$ 283,428	$ 307,337
As % of Category
Percent of category	23.10%	26.70%
Non-Real Estate | Agricultural
Balance
Total Loans Before Unearned Income	$ 23,108	$ 21,514
As % of Category
Percent of category	1.90%	1.90%
Non-Real Estate | Commercial and industrial
Balance
Total Loans Before Unearned Income	$ 200,877	$ 230,638
As % of Category
Percent of category	16.40%	20.00%
Non-Real Estate | Consumer and other
Balance
Total Loans Before Unearned Income	$ 59,443	$ 55,185
As % of Category
Percent of category	4.80%	4.80%

Loans - Fixed and Floating Rate

Loans - Fixed and Floating Rate Loans by Contractual Maturity (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Financing Receivables, Fixed and Floating Rate Loans by Contractual Maturity [Abstract]
One year or less	$ 189,055	$ 164,744
One to five years	681,081	641,468
Five to 15 years	205,494	194,488
Over 15 years	144,041	138,247
Subtotal	1,219,671	1,138,947
Nonaccrual loans	8,743	12,550
Total Loans Before Unearned Income	1,228,414	1,151,497
Unearned income	(3,146)	(2,483)
Total Loans Net of Unearned Income	1,225,268	1,149,014
Fixed
Financing Receivables, Fixed and Floating Rate Loans by Contractual Maturity [Abstract]
One year or less	108,160	89,383
One to five years	393,344	390,333
Five to 15 years	118,715	124,215
Over 15 years	85,611	70,366
Subtotal	705,830	674,297
Floating
Financing Receivables, Fixed and Floating Rate Loans by Contractual Maturity [Abstract]
One year or less	80,895	75,361
One to five years	287,737	251,135
Five to 15 years	86,779	70,273
Over 15 years	58,430	67,881
Subtotal	513,841	464,650
Loans at interest rate floor	$ 27,700	$ 95,400

Loans - Receivables Past Due (D

Loans - Receivables Past Due (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	$ 21,509	$ 17,478
Current	1,206,905	1,134,019
Total Loans Before Unearned Income	1,228,414	1,151,497
Recorded Investment 90 Days Accruing	145	839	$ 179
Unearned income	(3,146)	(2,483)
Total Loans Net of Unearned Income	1,225,268	1,149,014
30-89 Days Past Due
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	12,621	4,089
90 Days or Greater Past Due
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	8,888	13,389
Real Estate
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	15,554	8,904
Current	929,432	835,256
Total Loans Before Unearned Income	944,986	844,160
Recorded Investment 90 Days Accruing	26	0
Real Estate | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	10,814	2,757
Real Estate | 90 Days or Greater Past Due
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	4,740	6,147
Real Estate | Construction & land development
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	1,247	466
Current	123,397	112,137
Total Loans Before Unearned Income	124,644	112,603
Recorded Investment 90 Days Accruing	0	0
Real Estate | Construction & land development | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	936	95
Real Estate | Construction & land development | 90 Days or Greater Past Due
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	311	371
Real Estate | Farmland
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	1,293	240
Current	17,108	25,451
Total Loans Before Unearned Income	18,401	25,691
Recorded Investment 90 Days Accruing	0	0
Real Estate | Farmland | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	0	175
Real Estate | Farmland | 90 Days or Greater Past Due
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	1,293	65
Real Estate | 1- 4 Family
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	6,605	3,434
Current	166,155	155,299
Total Loans Before Unearned Income	172,760	158,733
Recorded Investment 90 Days Accruing	26	0
Real Estate | 1- 4 Family | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	4,333	1,481
Real Estate | 1- 4 Family | 90 Days or Greater Past Due
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	2,272	1,953
Real Estate | Multifamily
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	648	0
Current	42,270	16,840
Total Loans Before Unearned Income	42,918	16,840
Recorded Investment 90 Days Accruing	0	0
Real Estate | Multifamily | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	648	0
Real Estate | Multifamily | 90 Days or Greater Past Due
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	0	0
Real Estate | Non-farm non-residential
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	5,761	4,764
Current	580,502	525,529
Total Loans Before Unearned Income	586,263	530,293
Recorded Investment 90 Days Accruing	0	0
Real Estate | Non-farm non-residential | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	4,897	1,006
Real Estate | Non-farm non-residential | 90 Days or Greater Past Due
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	864	3,758
Non-Real Estate
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	5,955	8,574
Current	277,473	298,763
Total Loans Before Unearned Income	283,428	307,337
Recorded Investment 90 Days Accruing	119	839
Non-Real Estate | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	1,807	1,332
Non-Real Estate | 90 Days or Greater Past Due
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	4,148	7,242
Non-Real Estate | Agricultural
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	4,179	1,776
Current	18,929	19,738
Total Loans Before Unearned Income	23,108	21,514
Recorded Investment 90 Days Accruing	0	41
Non-Real Estate | Agricultural | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	528	239
Non-Real Estate | Agricultural | 90 Days or Greater Past Due
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	3,651	1,537
Non-Real Estate | Commercial and industrial
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	1,112	6,254
Current	199,765	224,384
Total Loans Before Unearned Income	200,877	230,638
Recorded Investment 90 Days Accruing	53	798
Non-Real Estate | Commercial and industrial | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	742	630
Non-Real Estate | Commercial and industrial | 90 Days or Greater Past Due
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	370	5,624
Non-Real Estate | Consumer and other
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	664	544
Current	58,779	54,641
Total Loans Before Unearned Income	59,443	55,185
Recorded Investment 90 Days Accruing	66	0
Non-Real Estate | Consumer and other | 30-89 Days Past Due
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	537	463
Non-Real Estate | Consumer and other | 90 Days or Greater Past Due
Financing Receivable, Recorded Investment, Aging [Abstract]
Total Past Due	$ 127	$ 81

Loans - Nonaccrual Loans (Detai

Loans - Nonaccrual Loans (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans	$ 8,743	$ 12,550
Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans	4,714	6,147
Real Estate | Construction & land development
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans	311	371
Real Estate | Farmland
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans	1,293	65
Real Estate | 1- 4 Family
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans	2,246	1,953
Real Estate | Multifamily
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans	0	0
Real Estate | Non-farm non-residential
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans	864	3,758
Non-Real Estate
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans	4,029	6,403
Non-Real Estate | Agricultural
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans	3,651	1,496
Non-Real Estate | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans	317	4,826
Non-Real Estate | Consumer and other
Financing Receivable, Recorded Investment, Past Due [Line Items]
Nonaccrual loans	$ 61	$ 81

Loans - Credit Exposure of Port

Loans - Credit Exposure of Portfolio (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	$ 1,228,414	$ 1,151,497
Unearned income	(3,146)	(2,483)
Total Loans Net of Unearned Income	1,225,268	1,149,014
Pass
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	1,154,686	1,072,591
Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	26,413	25,929
Substandard
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	46,792	48,417
Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	523	4,560
Real Estate
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	944,986	844,160
Real Estate | Pass
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	890,341	803,354
Real Estate | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	15,289	5,679
Real Estate | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	38,833	35,127
Real Estate | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	523	0
Real Estate | Construction & land development
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	124,644	112,603
Real Estate | Construction & land development | Pass
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	116,062	108,291
Real Estate | Construction & land development | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	5,698	125
Real Estate | Construction & land development | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	2,884	4,187
Real Estate | Construction & land development | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	0	0
Real Estate | Farmland
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	18,401	25,691
Real Estate | Farmland | Pass
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	13,151	25,030
Real Estate | Farmland | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	3,888	569
Real Estate | Farmland | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	1,362	92
Real Estate | Farmland | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	0	0
Real Estate | 1- 4 Family
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	172,760	158,733
Real Estate | 1- 4 Family | Pass
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	160,581	149,428
Real Estate | 1- 4 Family | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	2,815	1,856
Real Estate | 1- 4 Family | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	9,364	7,449
Real Estate | 1- 4 Family | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	0	0
Real Estate | Multifamily
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	42,918	16,840
Real Estate | Multifamily | Pass
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	35,554	9,366
Real Estate | Multifamily | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	0	639
Real Estate | Multifamily | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	7,364	6,835
Real Estate | Multifamily | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	0	0
Real Estate | Non-farm non-residential
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	586,263	530,293
Real Estate | Non-farm non-residential | Pass
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	564,993	511,239
Real Estate | Non-farm non-residential | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	2,888	2,490
Real Estate | Non-farm non-residential | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	17,859	16,564
Real Estate | Non-farm non-residential | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	523	0
Non-Real Estate
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	283,428	307,337
Non-Real Estate | Pass
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	264,345	269,237
Non-Real Estate | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	11,124	20,250
Non-Real Estate | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	7,959	13,290
Non-Real Estate | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	0	4,560
Non-Real Estate | Agricultural
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	23,108	21,514
Non-Real Estate | Agricultural | Pass
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	19,050	19,050
Non-Real Estate | Agricultural | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	43	995
Non-Real Estate | Agricultural | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	4,015	1,469
Non-Real Estate | Agricultural | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	0	0
Non-Real Estate | Commercial and industrial
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	200,877	230,638
Non-Real Estate | Commercial and industrial | Pass
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	186,176	201,962
Non-Real Estate | Commercial and industrial | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	10,930	19,187
Non-Real Estate | Commercial and industrial | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	3,771	4,929
Non-Real Estate | Commercial and industrial | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	0	4,560
Non-Real Estate | Consumer and other
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	59,443	55,185
Non-Real Estate | Consumer and other | Pass
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	59,119	48,225
Non-Real Estate | Consumer and other | Special Mention
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	151	68
Non-Real Estate | Consumer and other | Substandard
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	173	6,892
Non-Real Estate | Consumer and other | Doubtful
Financing Receivable, Recorded Investment [Line Items]
Total Loans Before Unearned Income	$ 0	$ 0

Loans - Purchased Impaired Loan

Loans - Purchased Impaired Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Financing Receivable, Impaired [Line Items]
Carrying amount	$ 3,259	$ 4,358
Certain Loans Acquired in Transfer Not Accounted for as Debt Securities, Accretable Yield Movement Schedule [Roll Forward]
Balance, beginning of period	1,031	0
Acquisition accretable yield	0	1,195
Accretion	(418)	(164)
Net transfers from nonaccretable difference to accretable yield	0	0
Balance, end of period	613	1,031
Real Estate
Financing Receivable, Impaired [Line Items]
Carrying amount	2,350	3,341
Real Estate | Construction & land development
Financing Receivable, Impaired [Line Items]
Carrying amount	0	1,135
Real Estate | Farmland
Financing Receivable, Impaired [Line Items]
Carrying amount	1	8
Real Estate | 1- 4 Family
Financing Receivable, Impaired [Line Items]
Carrying amount	48	50
Real Estate | Multifamily
Financing Receivable, Impaired [Line Items]
Carrying amount	0	0
Real Estate | Non-farm non-residential
Financing Receivable, Impaired [Line Items]
Carrying amount	2,301	2,148
Non-Real Estate
Financing Receivable, Impaired [Line Items]
Carrying amount	909	1,017
Non-Real Estate | Agricultural
Financing Receivable, Impaired [Line Items]
Carrying amount	0	0
Non-Real Estate | Commercial and industrial
Financing Receivable, Impaired [Line Items]
Carrying amount	909	1,017
Non-Real Estate | Consumer and other
Financing Receivable, Impaired [Line Items]
Carrying amount	$ 0	$ 0

Allowance for Loan Losses - Sum

Allowance for Loan Losses - Summary of Changes in Allowance for Loan Losses, by Portfolio Type (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Summary of changes in allowance for loan losses, by portfolio type [Roll Forward]
Beginning allowance	$ 9,225	$ 11,114	$ 9,415
Charge-offs	(1,889)	(6,362)	(2,914)
Recoveries	2,086	651	908
Provision for loan losses	1,354	3,822	3,705
Ending allowance	10,776	9,225	11,114
Real Estate
Summary of changes in allowance for loan losses, by portfolio type [Roll Forward]
Beginning allowance	5,516	6,497	6,642
Charge-offs	(503)	(1,324)	(1,617)
Recoveries	202	260	466
Provision for loan losses	2,407	83	1,006
Ending allowance	7,622	5,516	6,497
Real Estate | Construction & land development
Summary of changes in allowance for loan losses, by portfolio type [Roll Forward]
Beginning allowance	628	1,232	962
Charge-offs	0	0	0
Recoveries	3	43	4
Provision for loan losses	(50)	(647)	266
Ending allowance	581	628	1,232
Real Estate | Farmland
Summary of changes in allowance for loan losses, by portfolio type [Roll Forward]
Beginning allowance	5	19	54
Charge-offs	0	0	0
Recoveries	0	0	0
Provision for loan losses	36	(14)	(35)
Ending allowance	41	5	19
Real Estate | 1- 4 Family
Summary of changes in allowance for loan losses, by portfolio type [Roll Forward]
Beginning allowance	1,078	1,204	1,771
Charge-offs	(99)	(33)	(244)
Recoveries	90	92	45
Provision for loan losses	(158)	(185)	(368)
Ending allowance	911	1,078	1,204
Real Estate | Multifamily
Summary of changes in allowance for loan losses, by portfolio type [Roll Forward]
Beginning allowance	994	591	557
Charge-offs	0	0	0
Recoveries	20	40	401
Provision for loan losses	304	363	(367)
Ending allowance	1,318	994	591
Real Estate | Non-farm non-residential
Summary of changes in allowance for loan losses, by portfolio type [Roll Forward]
Beginning allowance	2,811	3,451	3,298
Charge-offs	(404)	(1,291)	(1,373)
Recoveries	89	85	16
Provision for loan losses	2,275	566	1,510
Ending allowance	4,771	2,811	3,451
Non-Real Estate
Summary of changes in allowance for loan losses, by portfolio type [Roll Forward]
Beginning allowance	3,709	4,617	2,773
Charge-offs	(1,386)	(5,038)	(1,297)
Recoveries	1,884	391	442
Provision for loan losses	(1,053)	3,739	2,699
Ending allowance	3,154	3,709	4,617
Non-Real Estate | Agricultural
Summary of changes in allowance for loan losses, by portfolio type [Roll Forward]
Beginning allowance	187	74	16
Charge-offs	(300)	(162)	(83)
Recoveries	26	138	113
Provision for loan losses	426	137	28
Ending allowance	339	187	74
Non-Real Estate | Commercial and industrial
Summary of changes in allowance for loan losses, by portfolio type [Roll Forward]
Beginning allowance	2,377	3,543	2,527
Charge-offs	(179)	(3,629)	(579)
Recoveries	1,642	30	146
Provision for loan losses	(1,931)	2,433	1,449
Ending allowance	1,909	2,377	3,543
Non-Real Estate | Consumer and other
Summary of changes in allowance for loan losses, by portfolio type [Roll Forward]
Beginning allowance	1,125	972	230
Charge-offs	(907)	(1,247)	(635)
Recoveries	216	223	183
Provision for loan losses	457	1,177	1,194
Ending allowance	891	1,125	972
Non-Real Estate | Unallocated
Summary of changes in allowance for loan losses, by portfolio type [Roll Forward]
Beginning allowance	20	28	0
Charge-offs	0	0	0
Recoveries	0	0	0
Provision for loan losses	(5)	(8)	28
Ending allowance	$ 15	$ 20	$ 28

Allowance for Loan Losses - S_2

Allowance for Loan Losses - Summary of Allowance and Loans Individually and Collectively Evaluated for Impairment (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Summary of allowance and loans individually and collectively evaluated for impairment [Abstract]
Allowance Individually Evaluated for Impairment	$ 1,300	$ 867
Allowance Individually Evaluated for Purchased Credit-Impairment	0	0
Allowance Collectively Evaluated for Impairment	9,476	8,358
Total Allowance for Credit Losses	10,776	9,225	$ 11,114	$ 9,415
Loans Individually Evaluated for Impairment	10,439	15,916
Loans Individually Evaluated for Purchased Credit-Impairment	3,259	4,358
Loans Collectively Evaluated for Impairment	1,214,716	1,131,223
Total Loans Before Unearned Income	1,228,414	1,151,497
Unearned income	(3,146)	(2,483)
Total Loans Net of Unearned Income	1,225,268	1,149,014
Financing receivable recorded investment not accruing interest	8,700	12,600	21,700
Financing receivable, recorded investment, 90 days past due and still accruing	145	839	179
Financing receivable average recorded investment nonaccrual status	8,900	17,300	22,500
Real Estate
Summary of allowance and loans individually and collectively evaluated for impairment [Abstract]
Allowance Individually Evaluated for Impairment	1,190	236
Allowance Individually Evaluated for Purchased Credit-Impairment	0	0
Allowance Collectively Evaluated for Impairment	6,432	5,280
Total Allowance for Credit Losses	7,622	5,516	6,497	6,642
Loans Individually Evaluated for Impairment	6,368	9,324
Loans Individually Evaluated for Purchased Credit-Impairment	2,350	3,341
Loans Collectively Evaluated for Impairment	936,268	831,495
Total Loans Before Unearned Income	944,986	844,160
Financing receivable, recorded investment, 90 days past due and still accruing	26	0
Real Estate | Construction & land development
Summary of allowance and loans individually and collectively evaluated for impairment [Abstract]
Allowance Individually Evaluated for Impairment	38	0
Allowance Individually Evaluated for Purchased Credit-Impairment	0	0
Allowance Collectively Evaluated for Impairment	543	628
Total Allowance for Credit Losses	581	628	1,232	962
Loans Individually Evaluated for Impairment	304	334
Loans Individually Evaluated for Purchased Credit-Impairment	0	1,135
Loans Collectively Evaluated for Impairment	124,340	111,134
Total Loans Before Unearned Income	124,644	112,603
Financing receivable, recorded investment, 90 days past due and still accruing	0	0
Real Estate | Farmland
Summary of allowance and loans individually and collectively evaluated for impairment [Abstract]
Allowance Individually Evaluated for Impairment	0	0
Allowance Individually Evaluated for Purchased Credit-Impairment	0	0
Allowance Collectively Evaluated for Impairment	41	5
Total Allowance for Credit Losses	41	5	19	54
Loans Individually Evaluated for Impairment	552	0
Loans Individually Evaluated for Purchased Credit-Impairment	1	8
Loans Collectively Evaluated for Impairment	17,848	25,683
Total Loans Before Unearned Income	18,401	25,691
Financing receivable, recorded investment, 90 days past due and still accruing	0	0
Real Estate | 1- 4 Family
Summary of allowance and loans individually and collectively evaluated for impairment [Abstract]
Allowance Individually Evaluated for Impairment	0	0
Allowance Individually Evaluated for Purchased Credit-Impairment	0	0
Allowance Collectively Evaluated for Impairment	911	1,078
Total Allowance for Credit Losses	911	1,078	1,204	1,771
Loans Individually Evaluated for Impairment	631	0
Loans Individually Evaluated for Purchased Credit-Impairment	48	50
Loans Collectively Evaluated for Impairment	172,081	158,683
Total Loans Before Unearned Income	172,760	158,733
Financing receivable, recorded investment, 90 days past due and still accruing	26	0
Real Estate | Multifamily
Summary of allowance and loans individually and collectively evaluated for impairment [Abstract]
Allowance Individually Evaluated for Impairment	0	0
Allowance Individually Evaluated for Purchased Credit-Impairment	0	0
Allowance Collectively Evaluated for Impairment	1,318	994
Total Allowance for Credit Losses	1,318	994	591	557
Loans Individually Evaluated for Impairment	0	0
Loans Individually Evaluated for Purchased Credit-Impairment	0	0
Loans Collectively Evaluated for Impairment	42,918	16,840
Total Loans Before Unearned Income	42,918	16,840
Financing receivable, recorded investment, 90 days past due and still accruing	0	0
Real Estate | Non-farm non-residential
Summary of allowance and loans individually and collectively evaluated for impairment [Abstract]
Allowance Individually Evaluated for Impairment	1,152	236
Allowance Individually Evaluated for Purchased Credit-Impairment	0	0
Allowance Collectively Evaluated for Impairment	3,619	2,575
Total Allowance for Credit Losses	4,771	2,811	3,451	3,298
Loans Individually Evaluated for Impairment	4,881	8,990
Loans Individually Evaluated for Purchased Credit-Impairment	2,301	2,148
Loans Collectively Evaluated for Impairment	579,081	519,155
Total Loans Before Unearned Income	586,263	530,293
Financing receivable, recorded investment, 90 days past due and still accruing	0	0
Non-Real Estate
Summary of allowance and loans individually and collectively evaluated for impairment [Abstract]
Allowance Individually Evaluated for Impairment	110	631
Allowance Individually Evaluated for Purchased Credit-Impairment	0	0
Allowance Collectively Evaluated for Impairment	3,044	3,078
Total Allowance for Credit Losses	3,154	3,709	4,617	2,773
Loans Individually Evaluated for Impairment	4,071	6,592
Loans Individually Evaluated for Purchased Credit-Impairment	909	1,017
Loans Collectively Evaluated for Impairment	278,448	299,728
Total Loans Before Unearned Income	283,428	307,337
Financing receivable, recorded investment, 90 days past due and still accruing	119	839
Non-Real Estate | Agricultural
Summary of allowance and loans individually and collectively evaluated for impairment [Abstract]
Allowance Individually Evaluated for Impairment	0	66
Allowance Individually Evaluated for Purchased Credit-Impairment	0	0
Allowance Collectively Evaluated for Impairment	339	121
Total Allowance for Credit Losses	339	187	74	16
Loans Individually Evaluated for Impairment	2,983	861
Loans Individually Evaluated for Purchased Credit-Impairment	0	0
Loans Collectively Evaluated for Impairment	20,125	20,653
Total Loans Before Unearned Income	23,108	21,514
Financing receivable, recorded investment, 90 days past due and still accruing	0	41
Non-Real Estate | Commercial and industrial
Summary of allowance and loans individually and collectively evaluated for impairment [Abstract]
Allowance Individually Evaluated for Impairment	110	565
Allowance Individually Evaluated for Purchased Credit-Impairment	0	0
Allowance Collectively Evaluated for Impairment	1,799	1,812
Total Allowance for Credit Losses	1,909	2,377	3,543	2,527
Loans Individually Evaluated for Impairment	1,088	5,731
Loans Individually Evaluated for Purchased Credit-Impairment	909	1,017
Loans Collectively Evaluated for Impairment	198,880	223,890
Total Loans Before Unearned Income	200,877	230,638
Financing receivable, recorded investment, 90 days past due and still accruing	53	798
Non-Real Estate | Consumer and other
Summary of allowance and loans individually and collectively evaluated for impairment [Abstract]
Allowance Individually Evaluated for Impairment	0	0
Allowance Individually Evaluated for Purchased Credit-Impairment	0	0
Allowance Collectively Evaluated for Impairment	891	1,125
Total Allowance for Credit Losses	891	1,125	972	230
Loans Individually Evaluated for Impairment	0	0
Loans Individually Evaluated for Purchased Credit-Impairment	0	0
Loans Collectively Evaluated for Impairment	59,443	55,185
Total Loans Before Unearned Income	59,443	55,185
Financing receivable, recorded investment, 90 days past due and still accruing	66	0
Non-Real Estate | Unallocated
Summary of allowance and loans individually and collectively evaluated for impairment [Abstract]
Allowance Individually Evaluated for Impairment	0	0
Allowance Individually Evaluated for Purchased Credit-Impairment	0	0
Allowance Collectively Evaluated for Impairment	15	20
Total Allowance for Credit Losses	15	20	$ 28	$ 0
Loans Individually Evaluated for Impairment	0	0
Loans Individually Evaluated for Purchased Credit-Impairment	0	0
Loans Collectively Evaluated for Impairment	0	0
Total Loans Before Unearned Income	$ 0	$ 0

Allowance for Loan Losses - Imp

Allowance for Loan Losses - Impaired Loans by Class (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Impaired Loans with no related allowance:
Recorded Investment	$ 4,689	$ 5,771
Unpaid Principal Balance	4,767	5,771
Average Recorded Investment	4,745	5,933
Interest Income Recognized	219	248
Interest Income Cash Basis	306	279
Impaired Loans with an allowance recorded:
Recorded Investment	4,158	9,811
Unpaid Principal Balance	4,158	13,552
Related Allowance	1,260	867
Average Recorded Investment	4,219	12,793
Interest Income Recognized	194	318
Interest Income Cash Basis	203	228
Total impaired loans [Abstract]
Recorded investment	8,847	15,582
Unpaid principal balance	8,925	19,323
Related Allowance	1,260	867
Average recorded investment	8,964	18,726
Interest income recognized	413	566
Interest income cash basis	509	507
Real Estate
Impaired Loans with no related allowance:
Recorded Investment	1,154	5,771
Unpaid Principal Balance	1,154	5,771
Average Recorded Investment	1,162	5,933
Interest Income Recognized	46	248
Interest Income Cash Basis	34	279
Impaired Loans with an allowance recorded:
Recorded Investment	3,070	3,219
Unpaid Principal Balance	3,070	3,570
Related Allowance	1,150	236
Average Recorded Investment	3,104	3,555
Interest Income Recognized	139	183
Interest Income Cash Basis	139	127
Total impaired loans [Abstract]
Related Allowance	1,150	236
Real Estate | Construction & land development
Impaired Loans with no related allowance:
Recorded Investment	0	0
Unpaid Principal Balance	0	0
Average Recorded Investment	0	0
Interest Income Recognized	0	0
Interest Income Cash Basis	0	0
Impaired Loans with an allowance recorded:
Recorded Investment	0	0
Unpaid Principal Balance	0	0
Related Allowance	0	0
Average Recorded Investment	0	0
Interest Income Recognized	0	0
Interest Income Cash Basis	0	0
Total impaired loans [Abstract]
Related Allowance	0	0
Real Estate | Farmland
Impaired Loans with no related allowance:
Recorded Investment	0	0
Unpaid Principal Balance	0	0
Average Recorded Investment	0	0
Interest Income Recognized	0	0
Interest Income Cash Basis	0	0
Impaired Loans with an allowance recorded:
Recorded Investment	0	0
Unpaid Principal Balance	0	0
Related Allowance	0	0
Average Recorded Investment	0	0
Interest Income Recognized	0	0
Interest Income Cash Basis	0	0
Total impaired loans [Abstract]
Related Allowance	0	0
Real Estate | 1- 4 Family
Impaired Loans with no related allowance:
Recorded Investment	631	0
Unpaid Principal Balance	631	0
Average Recorded Investment	626	0
Interest Income Recognized	13	0
Interest Income Cash Basis	0	0
Impaired Loans with an allowance recorded:
Recorded Investment	0	0
Unpaid Principal Balance	0	0
Related Allowance	0	0
Average Recorded Investment	0	0
Interest Income Recognized	0	0
Interest Income Cash Basis	0	0
Total impaired loans [Abstract]
Related Allowance	0	0
Real Estate | Multifamily
Impaired Loans with no related allowance:
Recorded Investment	0	0
Unpaid Principal Balance	0	0
Average Recorded Investment	0	0
Interest Income Recognized	0	0
Interest Income Cash Basis	0	0
Impaired Loans with an allowance recorded:
Recorded Investment	0	0
Unpaid Principal Balance	0	0
Related Allowance	0	0
Average Recorded Investment	0	0
Interest Income Recognized	0	0
Interest Income Cash Basis	0	0
Total impaired loans [Abstract]
Related Allowance	0	0
Real Estate | Non-farm non-residential
Impaired Loans with no related allowance:
Recorded Investment	523	5,771
Unpaid Principal Balance	523	5,771
Average Recorded Investment	536	5,933
Interest Income Recognized	33	248
Interest Income Cash Basis	34	279
Impaired Loans with an allowance recorded:
Recorded Investment	3,070	3,219
Unpaid Principal Balance	3,070	3,570
Related Allowance	1,150	236
Average Recorded Investment	3,104	3,555
Interest Income Recognized	139	183
Interest Income Cash Basis	139	127
Total impaired loans [Abstract]
Related Allowance	1,150	236
Non-Real Estate
Impaired Loans with no related allowance:
Recorded Investment	3,535	0
Unpaid Principal Balance	3,613	0
Average Recorded Investment	3,583	0
Interest Income Recognized	173	0
Interest Income Cash Basis	272	0
Impaired Loans with an allowance recorded:
Recorded Investment	1,088	6,592
Unpaid Principal Balance	1,088	9,982
Related Allowance	110	631
Average Recorded Investment	1,115	9,238
Interest Income Recognized	55	135
Interest Income Cash Basis	64	101
Total impaired loans [Abstract]
Related Allowance	110	631
Non-Real Estate | Agricultural
Impaired Loans with no related allowance:
Recorded Investment	3,535	0
Unpaid Principal Balance	3,613	0
Average Recorded Investment	3,583	0
Interest Income Recognized	173	0
Interest Income Cash Basis	272	0
Impaired Loans with an allowance recorded:
Recorded Investment	0	861
Unpaid Principal Balance	0	920
Related Allowance	0	66
Average Recorded Investment	0	1,117
Interest Income Recognized	0	70
Interest Income Cash Basis	0	17
Total impaired loans [Abstract]
Related Allowance	0	66
Non-Real Estate | Commercial and industrial
Impaired Loans with no related allowance:
Recorded Investment	0	0
Unpaid Principal Balance	0	0
Average Recorded Investment	0	0
Interest Income Recognized	0	0
Interest Income Cash Basis	0	0
Impaired Loans with an allowance recorded:
Recorded Investment	1,088	5,731
Unpaid Principal Balance	1,088	9,062
Related Allowance	110	565
Average Recorded Investment	1,115	8,121
Interest Income Recognized	55	65
Interest Income Cash Basis	64	84
Total impaired loans [Abstract]
Related Allowance	110	565
Non-Real Estate | Consumer and other
Impaired Loans with no related allowance:
Recorded Investment	0	0
Unpaid Principal Balance	0	0
Average Recorded Investment	0	0
Interest Income Recognized	0	0
Interest Income Cash Basis	0	0
Impaired Loans with an allowance recorded:
Recorded Investment	0	0
Unpaid Principal Balance	0	0
Related Allowance	0	0
Average Recorded Investment	0	0
Interest Income Recognized	0	0
Interest Income Cash Basis	0	0
Total impaired loans [Abstract]
Related Allowance	$ 0	$ 0

Allowance for Loan Losses - Age

Allowance for Loan Losses - Age Analysis of TDRs (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018USD ($)Contract	Dec. 31, 2017USD ($)Contract
Financing Receivable, Modifications [Line Items]
Number of troubled debt restructurings | Contract	0	0
Total TDRs	$ 1,592	$ 2,472
Nonaccrual
Financing Receivable, Modifications [Line Items]
Total TDRs	304	334
Current and Still Accruing
Financing Receivable, Modifications [Line Items]
Total TDRs	1,288	2,138
30-89 Days Past Due and Still Accruing
Financing Receivable, Modifications [Line Items]
Total TDRs	0	0
Real Estate
Financing Receivable, Modifications [Line Items]
Total TDRs	1,592	2,472
Real Estate | Nonaccrual
Financing Receivable, Modifications [Line Items]
Total TDRs	304	334
Real Estate | Current and Still Accruing
Financing Receivable, Modifications [Line Items]
Total TDRs	1,288	2,138
Real Estate | 30-89 Days Past Due and Still Accruing
Financing Receivable, Modifications [Line Items]
Total TDRs	0	0
Real Estate | Construction & land development
Financing Receivable, Modifications [Line Items]
Total TDRs	304	334
Real Estate | Construction & land development | Nonaccrual
Financing Receivable, Modifications [Line Items]
Total TDRs	304	334
Real Estate | Construction & land development | Current and Still Accruing
Financing Receivable, Modifications [Line Items]
Total TDRs	0	0
Real Estate | Construction & land development | 30-89 Days Past Due and Still Accruing
Financing Receivable, Modifications [Line Items]
Total TDRs	0	0
Real Estate | Farmland
Financing Receivable, Modifications [Line Items]
Total TDRs	0	0
Real Estate | Farmland | Nonaccrual
Financing Receivable, Modifications [Line Items]
Total TDRs	0	0
Real Estate | Farmland | Current and Still Accruing
Financing Receivable, Modifications [Line Items]
Total TDRs	0	0
Real Estate | Farmland | 30-89 Days Past Due and Still Accruing
Financing Receivable, Modifications [Line Items]
Total TDRs	0	0
Real Estate | 1- 4 Family
Financing Receivable, Modifications [Line Items]
Total TDRs	0	0
Real Estate | 1- 4 Family | Nonaccrual
Financing Receivable, Modifications [Line Items]
Total TDRs	0	0
Real Estate | 1- 4 Family | Current and Still Accruing
Financing Receivable, Modifications [Line Items]
Total TDRs	0	0
Real Estate | 1- 4 Family | 30-89 Days Past Due and Still Accruing
Financing Receivable, Modifications [Line Items]
Total TDRs	0	0
Real Estate | Multifamily
Financing Receivable, Modifications [Line Items]
Total TDRs	0	0
Real Estate | Multifamily | Nonaccrual
Financing Receivable, Modifications [Line Items]
Total TDRs	0	0
Real Estate | Multifamily | Current and Still Accruing
Financing Receivable, Modifications [Line Items]
Total TDRs	0	0
Real Estate | Multifamily | 30-89 Days Past Due and Still Accruing
Financing Receivable, Modifications [Line Items]
Total TDRs	0	0
Real Estate | Non-farm non-residential
Financing Receivable, Modifications [Line Items]
Total TDRs	1,288	2,138
Real Estate | Non-farm non-residential | Nonaccrual
Financing Receivable, Modifications [Line Items]
Total TDRs	0	0
Real Estate | Non-farm non-residential | Current and Still Accruing
Financing Receivable, Modifications [Line Items]
Total TDRs	1,288	2,138
Real Estate | Non-farm non-residential | 30-89 Days Past Due and Still Accruing
Financing Receivable, Modifications [Line Items]
Total TDRs	0	0
Non-Real Estate
Financing Receivable, Modifications [Line Items]
Total TDRs	0	0
Non-Real Estate | Nonaccrual
Financing Receivable, Modifications [Line Items]
Total TDRs	0	0
Non-Real Estate | Current and Still Accruing
Financing Receivable, Modifications [Line Items]
Total TDRs	0	0
Non-Real Estate | 30-89 Days Past Due and Still Accruing
Financing Receivable, Modifications [Line Items]
Total TDRs	0	0
Non-Real Estate | Agricultural
Financing Receivable, Modifications [Line Items]
Total TDRs	0	0
Non-Real Estate | Agricultural | Nonaccrual
Financing Receivable, Modifications [Line Items]
Total TDRs	0	0
Non-Real Estate | Agricultural | Current and Still Accruing
Financing Receivable, Modifications [Line Items]
Total TDRs	0	0
Non-Real Estate | Agricultural | 30-89 Days Past Due and Still Accruing
Financing Receivable, Modifications [Line Items]
Total TDRs	0	0
Non-Real Estate | Commercial and industrial
Financing Receivable, Modifications [Line Items]
Total TDRs	0	0
Non-Real Estate | Commercial and industrial | Nonaccrual
Financing Receivable, Modifications [Line Items]
Total TDRs	0	0
Non-Real Estate | Commercial and industrial | Current and Still Accruing
Financing Receivable, Modifications [Line Items]
Total TDRs	0	0
Non-Real Estate | Commercial and industrial | 30-89 Days Past Due and Still Accruing
Financing Receivable, Modifications [Line Items]
Total TDRs	0	0
Non-Real Estate | Consumer and other
Financing Receivable, Modifications [Line Items]
Total TDRs	0	0
Non-Real Estate | Consumer and other | Nonaccrual
Financing Receivable, Modifications [Line Items]
Total TDRs	0	0
Non-Real Estate | Consumer and other | Current and Still Accruing
Financing Receivable, Modifications [Line Items]
Total TDRs	0	0
Non-Real Estate | Consumer and other | 30-89 Days Past Due and Still Accruing
Financing Receivable, Modifications [Line Items]
Total TDRs	$ 0	$ 0

Allowance for Loan Losses - TDR

Allowance for Loan Losses - TDR Activity (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018USD ($)
TDR activity [Roll Forward]
Beginning balance	$ 2,472
New TDRs	0
Charge-offs post-modification	0
Transferred to ORE	0
Paydowns	(880)
Construction to permanent financing	0
Restructured to market terms	0
Other adjustments	0
Ending balance	1,592
Real Estate
TDR activity [Roll Forward]
Beginning balance	2,472
New TDRs	0
Charge-offs post-modification	0
Transferred to ORE	0
Paydowns	(880)
Construction to permanent financing	0
Restructured to market terms	0
Other adjustments	0
Ending balance	1,592
Real Estate | Construction & land development
TDR activity [Roll Forward]
Beginning balance	334
New TDRs	0
Charge-offs post-modification	0
Transferred to ORE	0
Paydowns	(30)
Construction to permanent financing	0
Restructured to market terms	0
Other adjustments	0
Ending balance	304
Real Estate | Farmland
TDR activity [Roll Forward]
Beginning balance	0
New TDRs	0
Charge-offs post-modification	0
Transferred to ORE	0
Paydowns	0
Construction to permanent financing	0
Restructured to market terms	0
Other adjustments	0
Ending balance	0
Real Estate | 1- 4 Family
TDR activity [Roll Forward]
Beginning balance	0
New TDRs	0
Charge-offs post-modification	0
Transferred to ORE	0
Paydowns	0
Construction to permanent financing	0
Restructured to market terms	0
Other adjustments	0
Ending balance	0
Real Estate | Multifamily
TDR activity [Roll Forward]
Beginning balance	0
New TDRs	0
Charge-offs post-modification	0
Transferred to ORE	0
Paydowns	0
Construction to permanent financing	0
Restructured to market terms	0
Other adjustments	0
Ending balance	0
Real Estate | Non-farm non-residential
TDR activity [Roll Forward]
Beginning balance	2,138
New TDRs	0
Charge-offs post-modification	0
Transferred to ORE	0
Paydowns	(850)
Construction to permanent financing	0
Restructured to market terms	0
Other adjustments	0
Ending balance	1,288
Non-Real Estate
TDR activity [Roll Forward]
Beginning balance	0
New TDRs	0
Charge-offs post-modification	0
Transferred to ORE	0
Paydowns	0
Construction to permanent financing	0
Restructured to market terms	0
Other adjustments	0
Ending balance	0
Non-Real Estate | Agricultural
TDR activity [Roll Forward]
Beginning balance	0
New TDRs	0
Charge-offs post-modification	0
Transferred to ORE	0
Paydowns	0
Construction to permanent financing	0
Restructured to market terms	0
Other adjustments	0
Ending balance	0
Non-Real Estate | Commercial and industrial
TDR activity [Roll Forward]
Beginning balance	0
New TDRs	0
Charge-offs post-modification	0
Transferred to ORE	0
Paydowns	0
Construction to permanent financing	0
Restructured to market terms	0
Other adjustments	0
Ending balance	0
Non-Real Estate | Consumer and other
TDR activity [Roll Forward]
Beginning balance	0
New TDRs	0
Charge-offs post-modification	0
Transferred to ORE	0
Paydowns	0
Construction to permanent financing	0
Restructured to market terms	0
Other adjustments	0
Ending balance	$ 0

Premises and Equipment (Details

Premises and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Acquired value	$ 73,831	$ 70,249
Less: accumulated depreciation	34,136	32,229
Net book value	39,695	38,020
Depreciation expense	2,100	1,800	$ 1,700
Land
Property, Plant and Equipment [Line Items]
Acquired value	12,875	12,875
Bank premises
Property, Plant and Equipment [Line Items]
Acquired value	33,457	32,687
Furniture and equipment
Property, Plant and Equipment [Line Items]
Acquired value	25,453	24,305
Construction in progress
Property, Plant and Equipment [Line Items]
Acquired value	$ 2,046	$ 382

Goodwill and Other Intangible_3

Goodwill and Other Intangible Assets (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Finite-Lived Intangible Assets [Line Items]
Impairment charges recognized on the Company's intangible assets	$ 0
Goodwill	3,472	$ 3,472
Amortization expense	$ 500	$ 400	$ 300
Core Deposits
Finite-Lived Intangible Assets [Line Items]
Weighted-average amortization	9 years 6 months

Goodwill and Other Intangible_4

Goodwill and Other Intangible Assets - Summary of Intangible Assets Subject to Amortization (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 13,494	$ 13,426
Accumulated Amortization	9,966	9,002
Net Carrying Amount	3,528	4,424
Core deposit intangibles
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	12,053	12,053
Accumulated Amortization	9,349	8,804
Net Carrying Amount	2,704	3,249
Loan servicing assets
Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,441	1,373
Accumulated Amortization	617	198
Net Carrying Amount	$ 824	$ 1,175

Goodwill and Other Intangible_5

Goodwill and Other Intangible Assets - Amortization Expense Related to Purchase Accounting Intangibles (Details) $ in Thousands	Dec. 31, 2018USD ($)
Goodwill and Intangible Assets Disclosure [Abstract]
December 31, 2019	$ 361
December 31, 2020	361
December 31, 2021	293
December 31, 2022	225
December 31, 2023	$ 225

Other Real Estate (Details)

Other Real Estate (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Real Estate Owned Acquired by Foreclosure [Abstract]
Residential	$ 120	$ 23
Construction & land development	241	304
Non-farm non-residential	777	954
Total Other Real Estate Owned and Foreclosed Property	$ 1,138	$ 1,281

Deposits (Details)

Deposits (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Maturities of time deposits [Abstract]
2019	$ 417,005
2020	106,655
2021	28,268
2022	45,355
2023 and thereafter	83,506
Total	680,789	$ 581,331
Brokered deposits	37,400
Aggregate amount of time deposits in denominations of $250,000 or more	$ 301,800	$ 266,200

Borrowings - Short-term Borrowi

Borrowings - Short-term Borrowings (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Short-term borrowings [Abstract]
Federal Home Loan Bank advances	$ 0	$ 15,500
Line of credit	0	0
Total short-term borrowings	0	15,500	$ 6,500
Line of credit facility, maximum borrowing capacity	6,500
Available lines of credit including FHLB	216,400	150,800
Schedule of certain information short-term borrowings [Abstract]
Outstanding at year end	0	15,500	6,500
Maximum month-end outstanding	37,000	28,000	25,000
Average daily outstanding	$ 7,119	$ 5,833	$ 8,775
Weighted average rate during the year	2.21%	1.06%	0.85%
Weighted average rate at year end	0.00%	1.51%	0.65%

Borrowings - Long-term Debt (De

Borrowings - Long-term Debt (Details) - USD ($)	3 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Debt Instrument [Line Items]
Long-term debt outstanding		$ 34,500,000
Proceeds from long-term debt, net of costs		0	$ 3,750,000	$ 0
Parent Company
Debt Instrument [Line Items]
Proceeds from long-term debt, net of costs		0	3,750,000	0
Funds invested in bank subsidiary	$ 3,800,000	0	3,750,000	$ 0
Senior Long-term Debt
Debt Instrument [Line Items]
Long-term debt outstanding		$ 19,838,000
Debt instrument, face amount	25,000,000
Proceeds from long-term debt, net of costs	$ 3,750,000
Senior Long-term Debt | Wall Street Journal Prime Rate
Debt Instrument [Line Items]
Percentage of interest used in secured pledge borrowings		13.20%
Number of shares used in secured pledge borrowings (in shares)		735,745
Senior Long-term Debt | Floating 3-Month LIBOR
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		2.50%
Interest rate		4.92%
Long-term debt outstanding		$ 19,800,000	22,800,000
Periodic principal payment		$ 735,294
Principal payment frequency		quarterly
Debt maturity date		Dec. 22, 2020
Percentage of interest used in secured pledge borrowings		85.00%
Number of shares used in secured pledge borrowings (in shares)		4,823,899
Junior Subordinated Debt
Debt Instrument [Line Items]
Long-term debt outstanding		$ 14,700,000
Junior Subordinated Debt | Wall Street Journal Prime Rate
Debt Instrument [Line Items]
Debt instrument, basis spread on variable rate		0.75%
Interest rate		4.00%
Long-term debt outstanding		$ 14,700,000	$ 14,700,000
Debt maturity date		Dec. 21, 2025
Junior Subordinated Debt | Wall Street Journal Prime Rate | Fixed Interest Rate Period
Debt Instrument [Line Items]
Principal payment frequency		semi-annually
Junior Subordinated Debt | Wall Street Journal Prime Rate | Floating Interest Rate Period
Debt Instrument [Line Items]
Principal payment frequency		quarterly

Borrowings - Line of Credit and

Borrowings - Line of Credit and Letters of Credit (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	$ 6.5
Line of credit facility, remaining borrowing capacity	216.4	$ 150.8
Revolving Credit Facility
Line of Credit Facility [Line Items]
Line of credit facility, maximum borrowing capacity	6.5
Line of credit facility, remaining borrowing capacity	$ 6.5
Line of credit facility, interest rate	5.50%
Federal Home Loan Bank (FHLB) | Letters of Credit
Line of Credit Facility [Line Items]
Letters of credit amount at FHLB	$ 344.3	$ 294.2

Borrowings - Obligations on Lon

Borrowings - Obligations on Long-term Debt (Details) $ in Thousands	Dec. 31, 2018USD ($)
Obligations on senior long-term debt and junior subordinated debentures [Abstract]
Total	$ 34,500
Senior Long-term Debt
Obligations on senior long-term debt and junior subordinated debentures [Abstract]
2019	2,941
2020	16,912
2021	0
2022	0
2023	0
2024 and thereafter	0
Subtotal	19,853
Debt issuance costs	(15)
Total	19,838
Junior Subordinated Debentures
Obligations on senior long-term debt and junior subordinated debentures [Abstract]
2019	0
2020	0
2021	0
2022	0
2023	0
2024 and thereafter	15,000
Subtotal	15,000
Debt issuance costs	(300)
Total	$ 14,700

Capital Requirements (Details)

Capital Requirements (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Capital conservation percentage	1.875%
Total Risk-based Capital, Amount [Abstract]
Actual Amount		$ 164,545
Minimum Capital Requirement		$ 108,427
Total Risk-based Capital, Ratio [Abstract]
Actual Ratio		12.14%
Minimum Capital Requirement		8.00%
Tier 1 Capital, Amount [Abstract]
Actual Amount		$ 140,320
Minimum Capital Requirement		$ 81,320
Tier 1 Capital, Ratio [Abstract]
Actual Ratio		10.35%
Minimum Capital Requirement		6.00%
Tier 1 Leverage Capital, Amount [Abstract]
Actual Amount		$ 140,320
Minimum Capital Requirement		$ 67,899
Tier 1 Leverage Capital, Ratio [Abstract]
Actual Ratio		8.27%
Minimum Capital Requirement		4.00%
Common Equity Tier One Capital, Amount [Abstract]
Actual Amount		$ 140,320
Minimum Capital Requirement		$ 60,990
Common Equity Tier One Capital, Ratio [Abstract]
Actual Ratio		10.35%
Minimum Capital Requirement		4.50%
Subsidiaries
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]
Capital conservation percentage	4.97%
Total Risk-based Capital, Amount [Abstract]
Actual Amount	$ 181,618	$ 176,398
Minimum Capital Requirement	112,055	107,961
Minimum to be Well Capitalized Under Action Provisions	$ 140,069	$ 134,951
Total Risk-based Capital, Ratio [Abstract]
Actual Ratio	12.97%	13.07%
Minimum Capital Requirement	8.00%	8.00%
Minimum to be Well Capitalized Under Action Provisions	10.00%	10.00%
Tier 1 Capital, Amount [Abstract]
Actual Amount	$ 170,842	$ 167,173
Minimum Capital Requirement	84,041	80,971
Minimum to be Well Capitalized Under Action Provisions	$ 112,055	$ 107,961
Tier 1 Capital, Ratio [Abstract]
Actual Ratio	12.20%	12.39%
Minimum Capital Requirement	6.00%	6.00%
Minimum to be Well Capitalized Under Action Provisions	8.00%	8.00%
Tier 1 Leverage Capital, Amount [Abstract]
Actual Amount	$ 170,842	$ 167,173
Minimum Capital Requirement	69,822	67,709
Minimum to be Well Capitalized Under Action Provisions	$ 87,277	$ 84,636
Tier 1 Leverage Capital, Ratio [Abstract]
Actual Ratio	9.79%	9.88%
Minimum Capital Requirement	4.00%	4.00%
Minimum to be Well Capitalized Under Action Provisions	5.00%	5.00%
Common Equity Tier One Capital, Amount [Abstract]
Actual Amount	$ 170,842	$ 167,173
Minimum Capital Requirement	63,031	60,728
Minimum to be Well Capitalized Under Action Provisions	$ 91,045	$ 87,718
Common Equity Tier One Capital, Ratio [Abstract]
Actual Ratio	12.20%	12.39%
Minimum Capital Requirement	4.50%	4.50%
Minimum to be Well Capitalized Under Action provisions	6.50%	6.50%

Dividend Restrictions (Details)

Dividend Restrictions (Details) $ in Millions	12 Months Ended
	Dec. 31, 2018USD ($)
Dividend Restrictions [Abstract]
Percentage of outstanding capital stock, maximum	50.00%
Undistributed earnings	$ 4.3
Restricted investments	$ 165.6

Related Party Transactions (Det

Related Party Transactions (Details) - USD ($) $ in Thousands	Dec. 21, 2015	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Loans and Leases Receivable, Related Parties [Roll Forward]
Balance, beginning of year		$ 82,918	$ 58,279
Net (Decrease) Increase		(19,011)	24,639
Balance, end of year		63,907	82,918	$ 58,279
Directors and Executive Officers
Loans and Leases Receivable, Related Parties [Roll Forward]
Deposit from related party		37,800
Directors and Executive Officers | Unfunded Loan Commitment
Loans and Leases Receivable, Related Parties [Roll Forward]
Balance, beginning of year		17,500
Balance, end of year		$ 8,600	17,500
Director | Subordinated Debt
Loans and Leases Receivable, Related Parties [Roll Forward]
Debt instrument, face amount	$ 15,000
Debt instrument, term		10 years
Interest amount		$ 600	600
Director | Subordinated Debt | Fixed Interest Rate Period
Loans and Leases Receivable, Related Parties [Roll Forward]
Debt instrument, term		5 years
Debt instrument, non-callable term		5 years
Debt instrument, interest rate	4.00%
Director | Subordinated Debt | Floating Interest Rate Period
Loans and Leases Receivable, Related Parties [Roll Forward]
Debt instrument, term		5 years
Director | Subordinated Debt | Floating Interest Rate Period | Wall Street Journal Prime Rate
Loans and Leases Receivable, Related Parties [Roll Forward]
Debt instrument, basis spread on variable rate	0.75%
Centurion Insurance
Loans and Leases Receivable, Related Parties [Roll Forward]
Equity method investment, ownership percentage		50.00%
Centurion Insurance | Equity Method Investee
Loans and Leases Receivable, Related Parties [Roll Forward]
Expenses from transactions with related party		$ 200
Champion Industries, Inc. | Affiliated Entity
Loans and Leases Receivable, Related Parties [Roll Forward]
Expenses from transactions with related party		300	400	300
Hood Automotive Group | Affiliated Entity
Loans and Leases Receivable, Related Parties [Roll Forward]
Expenses from transactions with related party		200	6	100
Gasaway Gasaway Bankston | Affiliated Entity
Loans and Leases Receivable, Related Parties [Roll Forward]
Expenses from transactions with related party		$ 700	$ 200	$ 300

Employee Benefit Plans (Details

Employee Benefit Plans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Deferment percentage of base salary, minimum	1.00%
Deferment percentage of base salary, maximum	20.00%
Employer matching contribution	6.00%
Maximum employer matching contribution percentage	100.00%
Contributions to savings plan	$ 292	$ 240	$ 191
Contributions made to ESOP	$ 0	$ 0	$ 0
Shares held under ESOP (in shares)	15,530

Other Expenses (Details)

Other Expenses (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Other noninterest expense [Abstract]
Legal and professional fees	$ 2,362	$ 3,049	$ 2,185
Data processing	1,692	1,608	1,259
ATM Fees	1,214	1,161	1,044
Marketing and public relations	1,329	1,205	878
Taxes - sales, capital and franchise	1,066	970	787
Operating supplies	562	496	471
Software expense and amortization	1,119	923	835
Travel and lodging	978	910	710
Telephone	208	167	177
Amortization of core deposits	545	432	320
Donations	380	322	298
Net costs from other real estate and repossessions	186	306	498
Regulatory assessment	941	726	1,005
Other	2,204	1,628	1,599
Total other noninterest expense	14,786	13,903	12,066
Advertising expense	$ 900	$ 700	$ 600

Income Taxes (Details)

Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Tax Expense (Benefit), Continuing Operations [Abstract]
Current	$ 3,929	$ 4,638	$ 8,168
Deferred	(467)	2,761	(1,004)
Total	$ 3,462	$ 7,399	$ 7,164
Effective Income Tax Rate Reconciliation, Percent [Abstract]
Statutory tax rate	21.00%	35.00%	35.00%
Federal income taxes at statutory rate	$ 3,712	$ 6,703	$ 7,440
Tax exempt municipal income	(166)	(254)	(283)
Other	(84)	950	7
Total	3,462	7,399	7,164
Estimated net impact from remeasurement of deferred tax assets and liabilities	900
Deferred tax assets:
Allowance for loan losses	2,159	1,804
Other real estate owned	28	25
Unrealized losses on available for sale securities	1,897	495
Net operating loss	1,374	1,463
Other	456	546
Gross deferred tax assets	5,914	4,333
Deferred tax liabilities:
Depreciation and amortization	(1,537)	(1,688)
Core deposit intangibles	(552)	(662)
Other	(589)	(566)
Gross deferred tax liabilities	(2,678)	(2,916)
Net deferred tax assets	3,236	1,417
Operating Loss Carryforwards [Line Items]
Net operating loss carryforwards	6,500	7,000
Income Tax Uncertainties [Abstract]
Income tax penalties expense	0	0	0
Interest on income taxes expense	0	0	0
Income tax penalties accrued	0	0	0
Interest on income taxes accrued	$ 0	$ 0	$ 0
Earliest Tax Year
Operating Loss Carryforwards [Line Items]
Expiration date	Dec. 31, 2027
Latest Tax Year
Operating Loss Carryforwards [Line Items]
Expiration date	Dec. 31, 2034

Commitments and Contingencies_2

Commitments and Contingencies (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018USD ($)Facility	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Extension period of majority of short-term borrowing	1 year
Maximum extension period of short-term borrowing	3 years
Losses incurred on off-balance sheet commitments	$ 0	$ 0	$ 0
Commitments to Extend Credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Notional value	108,348	78,125
Unfunded Commitments under lines of credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Notional value	122,212	101,344
Commercial and Standby letters of credit
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Notional value	6,912	$ 7,886
Construction Commitment
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]
Notional value	$ 12,900
Number of facilities under construction | Facility	2

Fair Value Measurements (Detail

Fair Value Measurements (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale measured at fair value	$ 296,977	$ 381,535
Reconciliation assets measured at fair value on a recurring basis using unobservable inputs (Level 3) [Roll Forward]
Balance, beginning of year	6,533	19,400
Included in earnings	(15)	54
Included in other comprehensive income	(79)	0
Purchases, sales, issuances and settlements, net	(1,886)	10,574
Transfers in and/or out of Level 3	208	(23,495)
Balance as of end of year	4,761	6,533
Level 1 | U.S. Treasuries
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Net decrease in available for sale securities		19,500
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale measured at fair value	296,977	381,535
Fair Value, Measurements, Recurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale measured at fair value	483	19,980
Fair Value, Measurements, Recurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale measured at fair value	291,733	355,022
Fair Value, Measurements, Recurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Securities available for sale measured at fair value	4,761	6,533
Fair Value, Measurements, Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans measured at fair value	3,620	12,003
Other real estate owned measured at fair value	1,138	1,281
Fair Value, Measurements, Nonrecurring | Level 1
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans measured at fair value	0	0
Other real estate owned measured at fair value	0	0
Fair Value, Measurements, Nonrecurring | Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans measured at fair value	0	0
Other real estate owned measured at fair value	1,012	1,249
Fair Value, Measurements, Nonrecurring | Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impaired loans measured at fair value	3,620	12,003
Other real estate owned measured at fair value	$ 126	$ 32

Financial Instruments (Details)

Financial Instruments (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Assets
Securities available for sale measured at fair value	$ 296,977	$ 381,535
Securities, held to maturity	104,840	118,557
Accrued interest receivable	6,716	7,982
Carrying Value
Assets
Cash and cash equivalents	127,965	38,028
Securities available for sale measured at fair value	296,977	381,535
Securities, held to maturity	108,326	120,121
Federal Home Loan Bank stock	2,393	2,351
Loans held for sale	344	1,308
Loans, net	1,214,492	1,139,789
Accrued interest receivable	6,716	7,982
Liabilities
Deposits	1,629,622	1,549,286
Borrowings	19,838	38,274
Junior subordinated debentures	14,700	14,664
Accrued interest payable	3,952	2,488
Estimated Fair Value
Assets
Cash and cash equivalents	127,965	38,028
Securities available for sale measured at fair value	296,977	381,535
Securities, held to maturity	104,840	118,557
Federal Home Loan Bank stock	2,393	2,351
Loans held for sale	379	1,439
Loans, net	1,193,886	1,133,868
Accrued interest receivable	6,716	7,982
Liabilities
Deposits	1,625,827	1,549,449
Borrowings	19,853	38,294
Junior subordinated debentures	14,537	14,324
Accrued interest payable	$ 3,952	$ 2,488

Concentrations of Credit and _2

Concentrations of Credit and Other Risks (Details) $ in Millions	12 Months Ended
	Dec. 31, 2018USD ($)Deposit
Risks and Uncertainties [Abstract]
Percentage of entity deposits	39.60%
Number of deposits of depositing authorities | Deposit	1
Public fund deposits | $	$ 645.5

Condensed Parent Company Info_3

Condensed Parent Company Information - Condensed Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	[1]
Assets
Available for sale, at fair value	$ 296,977	$ 381,535
Other assets	12,165	12,119
Total Assets	1,817,211	1,750,430
Liabilities and Shareholders' Equity
Outstanding at year end	0	15,500	$ 6,500
Senior long-term debt	19,838	22,774
Junior subordinated debentures	14,700	14,664
Other liabilities	1,815	1,735
Total Liabilities	1,669,927	1,606,447
Shareholders' Equity	147,284	143,983	$ 124,349	$ 118,224
Total Liabilities and Shareholders' Equity	1,817,211	1,750,430
Parent Company
Assets
Cash	8,069	5,214
Investment in bank subsidiary	169,880	170,836
Available for sale, at fair value	0	0
Other assets	4,724	6,086
Total Assets	182,673	182,136
Liabilities and Shareholders' Equity
Outstanding at year end	0	0
Senior long-term debt	19,838	22,774
Junior subordinated debentures	14,700	14,664
Other liabilities	851	715
Total Liabilities	35,389	38,153
Shareholders' Equity	147,284	143,983
Total Liabilities and Shareholders' Equity	$ 182,673	$ 182,136
[1]	All share and per share amounts reflect the ten percent stock dividend paid December 14, 2017 to shareholders of record as of December 8, 2017.

Condensed Parent Company Info_4

Condensed Parent Company Information - Condensed Statements of Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Operating Income
Net (losses) gains on securities	$ (1,830)	$ 1,397	$ 3,799
Operating Expenses
Interest expense	21,366	14,393	10,140
Salaries & Benefits	22,888	20,113	16,577
Income before income tax benefit and increase in equity in undistributed earnings of subsidiary	17,675	19,150	21,257
Income tax benefit	(3,462)	(7,399)	(7,164)
Net Income	14,213	11,751	14,093
Parent Company
Operating Income
Dividends received from bank subsidiary	11,788	10,622	11,858
Net (losses) gains on securities	0	54	0
Other income	289	171	160
Total operating income	12,077	10,847	12,018
Operating Expenses
Interest expense	1,675	1,518	1,444
Salaries & Benefits	133	495	200
Other expenses	916	1,147	948
Total operating expenses	2,724	3,160	2,592
Income before income tax benefit and increase in equity in undistributed earnings of subsidiary	9,353	7,687	9,426
Income tax benefit	540	834	846
Income before increase in equity in undistributed earnings of subsidiary	9,893	8,521	10,272
Increase in equity in undistributed earnings of subsidiary	4,320	3,230	3,821
Net Income	$ 14,213	$ 11,751	$ 14,093

Condensed Parent Company Info_5

Condensed Parent Company Information - Condensed Statements of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended	12 Months Ended
	Jun. 30, 2018	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Cash flows from operating activities:
Net income		$ 14,213	$ 11,751	$ 14,093
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		3,289	2,444	2,190
Loss (gain) on sale/call of securities		1,830	(1,397)	(3,799)
Net Cash Provided by Operating Activities		26,889	12,275	22,212
Cash flows from investing activities:
Proceeds from maturities, calls and sales of AFS securities		384,549	542,894	1,000,905
Funds Invested in AFS securities		(309,346)	(517,185)	(1,024,632)
Net Cash Provided By (Used In) Investing Activities		6,789	(82,996)	(67,784)
Cash flows from financing activities:
Net decrease in short-term borrowings		(15,500)	(700)	4,700
Proceeds from long-term debt, net of costs		0	3,750	0
Repayment of long-term debt		(2,941)	(3,081)	(3,730)
Dividends paid		(5,636)	(5,210)	(4,870)
Net Cash Provided By Financing Activities		56,259	90,638	26,411
Net Increase (Decrease In) Cash and Cash Equivalents		89,937	19,917	(19,161)
Cash and Cash Equivalents at the Beginning of the Period		38,028	18,111	37,272
Cash and Cash Equivalents at the End of the Period		127,965	38,028	18,111
Parent Company
Cash flows from operating activities:
Net income		14,213	11,751	14,093
Adjustments to reconcile net income to net cash provided by operating activities:
Increase in equity in undistributed earnings of subsidiary		(4,320)	(3,230)	(3,821)
Depreciation and amortization		43	43	7
Loss (gain) on sale/call of securities		0	(54)	0
Net change in other liabilities		136	187	318
Net change in other assets		1,360	(1,306)	(971)
Net Cash Provided by Operating Activities		11,432	7,391	9,626
Cash flows from investing activities:
Proceeds from maturities, calls and sales of AFS securities		0	134	0
Funds Invested in AFS securities		0	0	0
Funds invested in bank subsidiary	$ (3,800)	0	(3,750)	0
Cash paid in acquisition		0	(10,108)	0
Net Cash Provided By (Used In) Investing Activities		0	(13,724)	0
Cash flows from financing activities:
Net decrease in short-term borrowings		0	0	(1,800)
Proceeds from long-term debt, net of costs		0	3,750	0
Repayment of long-term debt		(2,941)	(3,081)	(3,730)
Proceeds from junior subordinated debentures, net of costs		0	0	0
Issuance of common stock, net of costs		0	0	0
Redemption of preferred stock		0	0	0
Dividends paid		(5,636)	(5,210)	(4,870)
Net Cash Provided By Financing Activities		(8,577)	(4,541)	(10,400)
Net Increase (Decrease In) Cash and Cash Equivalents		2,855	(10,874)	(774)
Cash and Cash Equivalents at the Beginning of the Period		5,214	16,088	16,862
Cash and Cash Equivalents at the End of the Period		$ 8,069	$ 5,214	$ 16,088