SALE OF BUSINESS UNIT (DISCONTINUED OPERATIONS) - Banc Home Loans Sale Additional Information (Details) - USD ($)	3 Months Ended	9 Months Ended
Sep. 30, 2019	Jun. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net gain on disposal	$ 0	$ 0	$ 0	$ 0	$ 1,275,000
Assets of discontinued operations	0			0		$ 19,490,000
Banc Home Loan \| Discontinued Operations, Disposed of by Sale
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Net gain on disposal	0		0	0	1,300,000
Income from earn-out	881,000		$ 786,000	2,100,000	$ 2,200,000
Assets of discontinued operations	0			0		19,500,000
Liabilities of discontinued operations	$ 0			$ 0		$ 0

Discontinued Operation, Gain (Loss) From Earn-Out On Disposal Of Discontinued Operation, Before Income Tax

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Amount classified as assets attributable to disposal group held for sale or disposed of.

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Amount before tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.

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