INCOME TAXES - Summary of current and deferred components (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Federal
Current	$ 2,168	$ 1,014
Deferred	(591)	100
Income tax expense	$ 1,577	$ 1,114

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

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-Publisher FASB
-Name Accounting Standards Codification
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
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-Publisher FASB
-Name Accounting Standards Codification
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration