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Note 2 - Business Acquisitions - Assets and Liabilities Acquired (Details) - USD ($) $ / shares in Units, $ in Thousands |  |  | 6 Months Ended |  |
--- | --- | --- | --- | --- | ---
May 01, 2019 | Oct. 22, 2018 | Jun. 30, 2019 | Jun. 30, 2018 | Dec. 31, 2018 | Aug. 31, 2018
Cash Consideration |  |  | $ 467 |  |  |
Liabilities assumed at fair value: |  |  |  |  |  |
Goodwill, Ending Balance |  |  | 16,134 |  | $ 202 |
Market Price of CBAN Common Stock on May 1, 2019 (in dollars per share) |  |  |  |  |  | $ 17.73
Cash Consideration Paid |  |  | 467 |  |  |
Cash Consideration |  |  | 467 |  |  |
Planters First Bank, Albany Georgia Branch [Member] |  |  |  |  |  |
Cash Consideration |  | $ 10,238 |  |  |  |
Total purchase price for PFB branch acquisition |  | 10,238 |  |  |  |
Assets acquired at fair value: |  |  |  |  |  |
Cash and cash equivalents |  | 195 |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Loans Receivable |  | 20,430 |  |  |  |
Premises and equipment |  | 773 |  |  |  |
Core deposit intangible |  | 560 |  |  |  |
Other assets |  | 123 |  |  |  |
Total fair value of assets acquired |  | 22,081 |  |  |  |
Liabilities assumed at fair value: |  |  |  |  |  |
Deposits |  | 12,032 |  |  |  |
Other liabilities |  | 13 |  |  |  |
Total fair value of liabilities assumed |  | 12,045 |  |  |  |
Net Assets acquired at fair value: |  | 10,036 |  |  |  |
Goodwill, Ending Balance |  | 202 |  |  |  |
Cash Consideration Paid |  | 10,238 |  |  |  |
Total purchase price for PFB branch acquisition |  | 10,238 |  |  |  |
Deposits |  | (12,032) |  |  |  |
Total Fair Value of Liabilities Assumed |  | (12,045) |  |  |  |
Cash Consideration |  | 10,238 |  |  |  |
Business Combination, Consideration Transferred, Total |  | 10,238 |  |  |  |
Net Assets Acquired at Fair Value: |  | $ 10,036 |  |  |  |
LBC Bancshares, Inc [Member] |  |  |  |  |  |
Cash Consideration | $ 15,312 |  |  |  |  |
Total purchase price for PFB branch acquisition | 34,021 |  |  |  |  |
Assets acquired at fair value: |  |  |  |  |  |
Cash and cash equivalents | 15,678 |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Loans Receivable | 130,568 |  | 130,570 |  |  |
Premises and equipment | 3,009 |  |  |  |  |
Core deposit intangible | 3,100 |  |  |  |  |
Total fair value of assets acquired | 210,502 |  |  |  |  |
Investments Securities Available for Sale | 49,172 |  |  |  |  |
Investments Securities Held to Maturity | 1,766 |  |  |  |  |
Restricted Investments | 479 |  |  |  |  |
Other Real Owned | 243 |  |  |  |  |
Prepaid and Other Assets | 6,487 |  |  |  |  |
Liabilities assumed at fair value: |  |  |  |  |  |
Deposits | 189,896 |  |  |  |  |
Total fair value of liabilities assumed | 191,871 |  |  |  |  |
Net Assets acquired at fair value: | 18,631 |  |  |  |  |
Goodwill, Ending Balance | $ 15,390 |  |  |  |  |
Shares of CBAN Common Stock Issued to LBC Shareholders as of May 1, 2019 (in shares) | 1,054,029 |  |  |  |  |
Market Price of CBAN Common Stock on May 1, 2019 (in dollars per share) | $ 17.75 |  |  |  |  |
Estimated Fair Value of CBAN Common Stock Issued | $ 18,709 |  |  |  |  |
Cash Consideration Paid | 15,312 |  |  |  |  |
Total purchase price for PFB branch acquisition | 34,021 |  |  |  |  |
Deposits | (189,896) |  |  |  |  |
FHLB Advances | (1,000) |  |  |  |  |
Payables and Other Liabilities | (975) |  |  |  |  |
Total Fair Value of Liabilities Assumed | (191,871) |  |  |  |  |
Cash Consideration | 15,312 |  |  |  |  |
Business Combination, Consideration Transferred, Total | 34,021 |  |  |  |  |
Net Assets Acquired at Fair Value: | 18,631 |  |  |  |  |
PFB Mortgage [Member] |  |  |  |  |  |
Cash Consideration | 833 |  |  |  |  |
Total purchase price for PFB branch acquisition | 833 |  |  |  |  |
Assets acquired at fair value: |  |  |  |  |  |
Premises and equipment | 78 |  |  |  |  |
Total fair value of assets acquired | 292 |  |  |  |  |
Premium on Loan Commitments | 209 |  |  |  |  |
Other Assets | 5 |  |  |  |  |
Liabilities assumed at fair value: |  |  |  |  |  |
Total fair value of liabilities assumed |  |  |  |  |  |
Net Assets acquired at fair value: | 292 |  |  |  |  |
Goodwill, Ending Balance | 541 |  | $ 541 |  |  |
Cash Consideration Paid | 833 |  |  |  |  |
Total purchase price for PFB branch acquisition | 833 |  |  |  |  |
Total Fair Value of Liabilities Assumed |  |  |  |  |  |
Cash Consideration | 833 |  |  |  |  |
Business Combination, Consideration Transferred, Total | 833 |  |  |  |  |
Net Assets Acquired at Fair Value: | $ 292 |  |  |  |  |

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