XML 38 R24.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Small Business Lending Fund | 12 Months Ended
--- | ---
Dec. 31, 2017
Small Business Lending Fund [Abstract] |
Small Business Lending Fund | Small Business Lending Fund In connection with the Company's merger with Legacy SmartFinancial, Inc. in 2015, the Company assumed Legacy SmartFinancial's obligations under a stock purchase agreement with the U.S. Department of the Treasury and issued 12,000 shares of preferred stock at $1,000 per share under the Small Business Lending Fund Program (the "SBLF Program").The Company paid cash dividends at a one percent rate or $120,000 for the year ended December 31, 2015 on the preferred shares. On February 4, 2016 the dividend rate for the preferred shares increased to nine percent and as a result the Company incurred preferred stock dividends of $1,022,000 for the year ended December 31, 2016 . On January 30, 2017, the Company completed a public offering of 2,010,084 million shares of its common stock, par value $1.00 per share, with the gross proceeds to the Company of approximately $33.2 million. On March 6, 2017, the Company used proceeds from the offering to redeem the $12 million of preferred stock and pay the $195 thousand accrued dividend.

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

X
- Definition The entire disclosure of small business lending fund as of balance sheet date. + References No definition available. + Details
Name: | smbk_SmallBusinessLendingFundDisclosureTextBlock
Namespace Prefix: | smbk_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration