INCOME TAXES - Changes In Net Deferred Tax Asset (Liability) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
INCOME TAXES
Balance at beginning of year	$ 6,727	$ 843	$ 610
Deferred tax benefit	556	1,140	698
Coastway net deferred tax asset acquired	(165)	4,258
Change in directors' retirement plan			(391)
Change in securities available for sale	(1,084)	486	(74)
Balance at end of year	$ 6,034	$ 6,727	$ 843

Amount of deferred tax asset change due to acquisition.

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Amount of deferred tax liability change due to securities available for sale.

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Amount of deferred tax liability change due to supplemental director retirement plan.

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Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.

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Amount, after allocation of valuation allowances and deferred tax liability, of deferred tax asset attributable to deductible differences and carryforwards, without jurisdictional netting.

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