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BUSINESS COMBINATION AND PENDING ACQUISITION (Details) |  |  | 1 Months Ended | 3 Months Ended | 6 Months Ended |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Jul. 01, 2020 USD ($) $ / shares | Apr. 01, 2019 USD ($) shares | Jun. 30, 2020 USD ($) $ / shares | Sep. 30, 2020 USD ($) | Jun. 30, 2020 USD ($) $ / shares | Dec. 31, 2019 USD ($) $ / shares | Jun. 30, 2019 USD ($) | Jun. 30, 2020 USD ($) | Jun. 30, 2019 USD ($) | Mar. 31, 2020 USD ($) | Mar. 31, 2019 USD ($) | Dec. 31, 2018 USD ($)
Goodwill, Ending Balance |  |  | $ 28,388,000 |  | $ 28,388,000 | $ 28,388,000 |  | $ 28,388,000 |  |  |  |
Debt Securities, Available-for-sale, Realized Gain (Loss), Total |  |  |  |  | 0 |  | $ 7,000 | 0 | $ 7,000 |  |  |
Business Combination, Acquisition Related Costs |  |  |  |  | 983,000 |  | 3,301,000 | 1,124,000 | 3,612,000 |  |  |
Assets, Total |  |  | 1,745,466,000 |  | 1,745,466,000 | 1,654,145,000 |  | 1,745,466,000 |  |  |  |
Liabilities, Total |  |  | 1,489,675,000 |  | 1,489,675,000 | 1,409,693,000 |  | 1,489,675,000 |  |  |  |
Stockholders' Equity Attributable to Parent, Ending Balance |  |  | $ 255,791,000 |  | $ 255,791,000 | $ 244,452,000 | 239,716,000 | 255,791,000 | 239,716,000 | $ 251,228,000 | $ 202,127,000 | $ 197,368,000
Average Closing Share Price (in dollars per share) | $ / shares |  |  | $ 20.24 |  | $ 20.14 | $ 26.05 |  |  |  |  |  |
Loans receivable |  |  | $ 1,241,413,000 |  | $ 1,241,413,000 | $ 1,182,222,000 |  | 1,241,413,000 |  |  |  |
Monument Bancorp, Inc |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred, Total |  | $ 42,700,000 |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Cash, Net of Stock Issuance Costs |  | $ 9,600,000 |  |  |  |  |  |  |  |  |  |
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares (in shares) | shares |  | 1,279,825 |  |  |  |  |  |  |  |  |  |
Payments to Acquire Businesses, Cash, Net of Stock Issuance Costs |  | $ 33,100,000 |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred, Equity Interest Issuance Costs |  | 181,000 |  |  |  |  |  |  |  |  |  |
Goodwill, Ending Balance |  | 16,400,000 |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Loans Receivable |  | 259,295,000 |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deposits |  | 223,300,000 |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Short-term Borrowing |  | 111,600,000 |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Subordinated Debt |  | 12,400,000 |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Marketable Securities |  | 94,600,000 |  |  |  |  |  |  |  |  |  |
Debt Securities, Available-for-sale, Realized Gain (Loss), Total |  | 0 |  |  |  |  |  |  |  |  |  |
Business Combination, Acquisition Related Costs |  |  |  |  |  |  | $ 3,301,000 |  | $ 3,612,000 |  |  |
Monument Bancorp, Inc | Subordinated debt, Redeemed April 1, 2019 |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Subordinated Debt |  | 5,400,000 |  |  |  |  |  |  |  |  |  |
Embedded Derivative, Gain (Loss) on Embedded Derivative, Net, Total |  | 0 |  |  |  |  |  |  |  |  |  |
Monument Bancorp, Inc | Core Deposits |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill, Total |  | $ 1,500,000 |  |  |  |  |  |  |  |  |  |
Covenant Financial Inc. |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Acquisition Related Costs |  |  |  |  | 983,000 |  |  | 1,124,000 |  |  |  |
Assets, Total |  |  | 608,000,000 |  | 608,000,000 |  |  | 608,000,000 |  |  |  |
Stockholders' Equity Attributable to Parent, Ending Balance |  |  | 44,000,000 |  | 44,000,000 |  |  | 44,000,000 |  |  |  |
Loans receivable |  |  | 472,000,000 |  | 472,000,000 |  |  | 472,000,000 |  |  |  |
Total deposits |  |  | $ 480,000,000 |  | $ 480,000,000 |  |  | $ 480,000,000 |  |  |  |
Covenant Financial Inc. | Subsequent event |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Consideration Transferred, Total | $ 63,300,000 |  |  |  |  |  |  |  |  |  |  |
Business Combination, Percent Paid in Cash | 25.00% |  |  |  |  |  |  |  |  |  |  |
Business Combination, Percent Paid in Equity | 75.00% |  |  |  |  |  |  |  |  |  |  |
Average Closing Share Price (in dollars per share) | $ / shares | $ 20.32 |  |  |  |  |  |  |  |  |  |  |
Consideration agreed, option one, fraction of shares | 0.6212 |  |  |  |  |  |  |  |  |  |  |
Consideration agreed, option two, cash per share | $ / shares | $ 16.50 |  |  |  |  |  |  |  |  |  |  |
Shareholding percentage held in the company by acquiree's shareholders prior to the consummation of merger | 12.90% |  |  |  |  |  |  |  |  |  |  |
Covenant Financial Inc. | Forecast |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Acquisition Related Costs |  |  |  | $ 8,000,000.0 |  |  |  |  |  |  |  |
Remaining expenses |  |  |  | $ 6,600,000 |  |  |  |  |  |  |  |

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