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SUBORDINATED DEBT - Additional Information (Details) - Subordinated Debt [Member] - USD ($) | 1 Months Ended
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Dec. 31, 2020 | Dec. 31, 2017 | Jun. 30, 2016
Debt Instrument [Line Items] |  |  |
Principal amount | $ 100,000,000.0 | $ 35,000,000.0 | $ 50,000,000.0
Non-callable term | 5 years | 5 years | 5 years
Notes maturity date | Dec. 22, 2030 | Dec. 15, 2027 | Jun. 30, 2026
Fixed interest rate | 3.50% | 4.75% | 6.00%
LIBOR spread | 3.26% | 2.54% | 4.85%
Debt issuance costs | $ 1,800,000 | $ 875,000 | $ 1,300,000
Parent Company [Member] |  |  |
Debt Instrument [Line Items] |  |  |
Net proceeds used to contribute to the Bank |  | 29,100,000 | 40,000,000.0
Proceeds from debt retained by parent |  | $ 5,000,000 | $ 10,000,000

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- Definition Net proceeds from debt used for contributions. + References No definition available. + Details
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- Definition Proceeds from debt retained by parent. + References No definition available. + Details
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- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
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- Definition Face (par) amount of debt instrument at time of issuance. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400 + Details
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(2)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb)(2) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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- Details
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