XML 44 R30.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Securities (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2017
Investments, Debt and Equity Securities [Abstract] |
Available-for-sale Securities | The amortized cost and fair value of securities available-for-sale at December 31, 2017 and 2016 are summarized as follow (in thousands):
|  | December 31, 2017
|  | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value
U.S. Government-sponsored enterprises (GSEs) |  | $ | 26,207 |  |  | $ | 1 |  |  | $ | (432 | ) |  | $ | 25,776 |
Municipal securities |  | 9,122 |  |  | 28 |  |  | (147 | ) |  | 9,003 |
Other debt securities |  | 974 |  |  | — |  |  | (24 | ) |  | 950 |
Mortgage-backed securities |  | 117,263 |  |  | 136 |  |  | (1,184 | ) |  | 116,215 |
Total |  | $ | 153,566 |  |  | $ | 165 |  |  | $ | (1,787 | ) |  | $ | 151,944 |
|  | December 31, 2016
|  | Amortized Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value
U.S. Government-sponsored enterprises (GSEs) |  | $ | 18,279 |  |  | $ | 8 |  |  | $ | (564 | ) |  | $ | 17,723 |
Municipal securities |  | 8,182 |  |  | 16 |  |  | (179 | ) |  | 8,019 |
Mortgage-backed securities |  | 104,585 |  |  | 185 |  |  | (1,090 | ) |  | 103,680 |
Total |  | $ | 131,046 |  |  | $ | 209 |  |  | $ | (1,833 | ) |  | $ | 129,422 |
Schedule Of Available For Sale Securities and Held To Maturity Reconciliation | The amortized cost and estimated market value of securities at December 31, 2017, by contractual maturity, are shown below (in thousands). Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.
|  | Amortized Cost |  | Fair Value
Due in one year or less |  | $ | 2,174 |  |  | $ | 2,175 |
Due from one year to five years |  | 21,606 |  |  | 21,292 |
Due from five years to ten years |  | 8,037 |  |  | 7,822 |
Due after ten years |  | 4,486 |  |  | 4,440 |
|  | 36,303 |  |  | 35,729 |
Mortgage-backed securities |  | 117,263 |  |  | 116,215 |
Total |  | $ | 153,566 |  |  | $ | 151,944 |
Investments Classified by Contractual Maturity Date | The following tables present the gross unrealized losses and fair value, aggregated by investment category and length of time that individual securities available-for-sale have been in a continuous unrealized loss position, as of December 31, 2017 and 2016 (in thousands):
|  | As of December 31, 2017
|  | Less than 12 Months |  | 12 Months or Greater |  | Total
|  | Fair Value |  | Gross Unrealized Losses |  | Fair Value |  | Gross Unrealized Losses |  | Fair Value |  | Gross Unrealized Losses
U.S. Government- sponsored enterprises (GSEs) |  | $ | 1,358 |  |  | $ | (1 | ) |  | $ | 13,420 |  |  | $ | (431 | ) |  | $ | 14,778 |  |  | $ | (432 | )
Municipal securities |  | 3,418 |  |  | (43 | ) |  | 2,112 |  |  | (104 | ) |  | 5,530 |  |  | (147 | )
Other debt securities |  | 950 |  |  | (24 | ) |  | — |  |  | — |  |  | 950 |  |  | (24 | )
Mortgage-backed securities |  | 61,332 |  |  | (407 | ) |  | 35,048 |  |  | (777 | ) |  | 96,380 |  |  | (1,184 | )
Total |  | $ | 67,058 |  |  | $ | (475 | ) |  | $ | 50,580 |  |  | $ | (1,312 | ) |  | $ | 117,638 |  |  | $ | (1,787 | )
|  | As of December 31, 2016
|  | Less than 12 Months |  | 12 Months or Greater |  | Total
|  | Fair Value |  | Gross Unrealized Losses |  | Fair Value |  | Gross Unrealized Losses |  | Fair Value |  | Gross Unrealized Losses
U.S. Government- sponsored enterprises (GSEs) |  | $ | 14,702 |  |  | $ | (564 | ) |  | $ | — |  |  | $ | — |  |  | $ | 14,702 |  |  | $ | (564 | )
Municipal securities |  | 6,368 |  |  | (179 | ) |  | — |  |  | — |  |  | 6,368 |  |  | (179 | )
Mortgage-backed securities |  | 67,063 |  |  | (690 | ) |  | 8,948 |  |  | (400 | ) |  | 76,011 |  |  | (1,090 | )
Total |  | $ | 88,133 |  |  | $ | (1,433 | ) |  | $ | 8,948 |  |  | $ | (400 | ) |  | $ | 97,081 |  |  | $ | (1,833 | )
Schedule of Unrealized Loss on Investments | Sales of available for sale securities for the years ended December 31, 2017 and 2016, were as follows (in thousands):
|  | 2017 |  | 2016
Proceeds |  | $ | 12,614 |  |  | $ | 31,599 |
Gains realized |  | 145 |  |  | 200 |
Losses realized |  | 2 |  |  | — |

X
- Definition Tabular disclosure representing about the securities available for sale and held to maturity. + References No definition available. + Details
Name: | smbk_ScheduleOfAvailableForSaleSecuritiesAndHeldToMaturityReconciliationTableTextBlock
Namespace Prefix: | smbk_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of available-for-sale securities which includes, but is not limited to, changes in the cost basis and fair value, fair value and gross unrealized gain (loss), fair values by type of security, contractual maturity and classification, amortized cost basis, contracts to acquire securities to be accounted for as available-for-sale, debt maturities, transfers to trading, change in net unrealized holding gain (loss) net of tax, continuous unrealized loss position fair value, aggregate losses qualitative disclosures, other than temporary impairment (OTTI) losses or other disclosures related to available for sale securities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=75019621&loc=d3e62557-112803 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27337-111563 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27198-111563 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=75019621&loc=d3e62586-112803 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27161-111563 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 9 -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27357-111563 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27290-111563 + Details
Name: | us-gaap_AvailableForSaleSecuritiesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of maturities of an entity's investments as well as any other information pertinent to the investments. + References No definition available. + Details
Name: | us-gaap_InvestmentsClassifiedByContractualMaturityDateTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_InvestmentsDebtAndEquitySecuritiesAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition For all investments in an unrealized loss position, including those for which other-than-temporary impairments have not been recognized in earnings (including investments for which a portion of an other-than-temporary impairment has been recognized in other comprehensive income), a tabular disclosure of the aggregate related fair value of investments with unrealized losses and the aggregate amount of unrealized losses (that is, the amount by which amortized cost basis exceeds fair value). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=82897076&loc=d3e27290-111563 + Details
Name: | us-gaap_ScheduleOfUnrealizedLossOnInvestmentsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration