XML 77 R63.htm IDEA: XBRL DOCUMENT v3.19.1

Loans and Allowance for Loan Losses (Loan Risk Rating) (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 1,777,239	$ 1,323,258
All Other Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,743,081	1,290,464
All Other Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,728,896	1,270,417
All Other Loans [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	10,758	13,668
All Other Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	309	3,852
All Other Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,915	2,241
All Other Loans [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	203	286
Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	34,158	32,794
Purchased Credit Impaired Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	26,623	23,558
Purchased Credit Impaired Loans [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	3,147	2,637
Purchased Credit Impaired Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,536	538
Purchased Credit Impaired Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,852	5,308
Purchased Credit Impaired Loans [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	753
Commercial Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	860,027	642,988
Commercial Real Estate [Member] | All Other Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	842,345	625,085
Commercial Real Estate [Member] | All Other Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	834,912	616,028
Commercial Real Estate [Member] | All Other Loans [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	6,791	7,673
Commercial Real Estate [Member] | All Other Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	1,006
Commercial Real Estate [Member] | All Other Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	642	378
Commercial Real Estate [Member] | All Other Loans [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Commercial Real Estate [Member] | Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	17,682	17,903
Commercial Real Estate [Member] | Purchased Credit Impaired Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	14,050	14,386
Commercial Real Estate [Member] | Purchased Credit Impaired Loans [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,805	261
Commercial Real Estate [Member] | Purchased Credit Impaired Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,030	0
Commercial Real Estate [Member] | Purchased Credit Impaired Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	797	3,084
Commercial Real Estate [Member] | Purchased Credit Impaired Loans [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	172
Consumer Real Estate [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	407,254	293,457
Consumer Real Estate [Member] | All Other Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	398,542	286,007
Consumer Real Estate [Member] | All Other Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	394,728	279,464
Consumer Real Estate [Member] | All Other Loans [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,678	2,543
Consumer Real Estate [Member] | All Other Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	14	2,627
Consumer Real Estate [Member] | All Other Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,122	1,159
Consumer Real Estate [Member] | All Other Loans [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	214
Consumer Real Estate [Member] | Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	8,712	7,450
Consumer Real Estate [Member] | Purchased Credit Impaired Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	5,617	4,151
Consumer Real Estate [Member] | Purchased Credit Impaired Loans [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	756	1,345
Consumer Real Estate [Member] | Purchased Credit Impaired Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	446	456
Consumer Real Estate [Member] | Purchased Credit Impaired Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,893	1,192
Consumer Real Estate [Member] | Purchased Credit Impaired Loans [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	306
Construction and Land Development [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	187,895	135,409
Construction and Land Development [Member] | All Other Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	183,293	130,289
Construction and Land Development [Member] | All Other Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	182,524	129,359
Construction and Land Development [Member] | All Other Loans [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	64	383
Construction and Land Development [Member] | All Other Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	158	0
Construction and Land Development [Member] | All Other Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	547	547
Construction and Land Development [Member] | All Other Loans [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Construction and Land Development [Member] | Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	4,602	5,120
Construction and Land Development [Member] | Purchased Credit Impaired Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	4,033	4,134
Construction and Land Development [Member] | Purchased Credit Impaired Loans [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	569	649
Construction and Land Development [Member] | Purchased Credit Impaired Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Construction and Land Development [Member] | Purchased Credit Impaired Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	337
Construction and Land Development [Member] | Purchased Credit Impaired Loans [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	0
Commercial and Industrial [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	308,254	238,087
Commercial and Industrial [Member] | All Other Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	305,697	237,229
Commercial and Industrial [Member] | All Other Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	303,805	233,942
Commercial and Industrial [Member] | All Other Loans [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	1,090	3,007
Commercial and Industrial [Member] | All Other Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	137	64
Commercial and Industrial [Member] | All Other Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	462	157
Commercial and Industrial [Member] | All Other Loans [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	203	59
Commercial and Industrial [Member] | Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,557	858
Commercial and Industrial [Member] | Purchased Credit Impaired Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	2,382	68
Commercial and Industrial [Member] | Purchased Credit Impaired Loans [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	120
Commercial and Industrial [Member] | Purchased Credit Impaired Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	50	58
Commercial and Industrial [Member] | Purchased Credit Impaired Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	125	588
Commercial and Industrial [Member] | Purchased Credit Impaired Loans [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	24
Consumer and Other [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	13,809	13,317
Consumer and Other [Member] | All Other Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	13,204	11,854
Consumer and Other [Member] | All Other Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	12,927	11,624
Consumer and Other [Member] | All Other Loans [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	135	62
Consumer and Other [Member] | All Other Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	155
Consumer and Other [Member] | All Other Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	142	0
Consumer and Other [Member] | All Other Loans [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	0	13
Consumer and Other [Member] | Purchased Credit Impaired Loans [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	605	1,463
Consumer and Other [Member] | Purchased Credit Impaired Loans [Member] | Pass [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	541	819
Consumer and Other [Member] | Purchased Credit Impaired Loans [Member] | Watch [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	17	262
Consumer and Other [Member] | Purchased Credit Impaired Loans [Member] | Special Mention [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	10	24
Consumer and Other [Member] | Purchased Credit Impaired Loans [Member] | Substandard [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	37	107
Consumer and Other [Member] | Purchased Credit Impaired Loans [Member] | Doubtful [Member]
Financing Receivable, Recorded Investment [Line Items]
Total loans	$ 0	$ 251

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=82891408&loc=d3e4428-111522

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=84173941&loc=d3e5074-111524

+ Details

Name:	us-gaap_LoansAndLeasesReceivableNetOfDeferredIncome
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_CreditLossStatusAxis=smbk_ReceivablesOtherthanReceivablesAcquiredwithDeterioratedCreditQualityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_PassMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=smbk_WatchMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_SpecialMentionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_SubstandardMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_DoubtfulMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_CreditLossStatusAxis=us-gaap_FinancialAssetAcquiredWithCreditDeteriorationMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialRealEstatePortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ResidentialPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=smbk_ConstructionPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_CommercialPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivablePortfolioSegmentAxis=us-gaap_ConsumerPortfolioSegmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: