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Business Combination - Tennessee Bancshares Merger (Details) - Tennessee Bancshares [Member] $ / shares in Units, $ in Thousands | May 01, 2018 USD ($) $ / shares shares
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Business Acquisition [Line Items] |
Shares of SMBK common stock issued to TN Bancshares shareholders as of May 1, 2018 (in shares) | shares | 1,458,981
Market price of SMBK common stock on May 1, 2018 (in dollars per share) | $ / shares | $ 23.85
Estimated fair value of SMBK common stock issued (in shares) | $ 34,797
Cash consideration paid | 5
Total consideration | 34,802
Fair value of assets acquired and liabilities assumed: |
Cash and cash equivalents | 5,723
Investment securities available for sale | 24,563
Restricted investments | 464
Loans | 180,490
Premises and equipment | 9,470
Core deposit intangible | 2,290
Other real estate owned | 674
Prepaid and other assets | 2,258
Deposits | (202,272)
FHLB advances and other borrowings | (4,000)
Payables and other liabilities | (586)
Total fair value of net assets acquired | 19,074
Goodwill | $ 15,728

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