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INCOME TAXES - Additional information (Details) - USD ($)	3 Months Ended	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Income taxes
Statutory federal income tax rate		21.00%	21.00%	21.00%
Discrete income tax provision adjustment	$ 100,000
Estimated tax benefit associated with FDII		$ 103,000
Total net income tax payments		$ 4,099,000	$ 7,330,000	$ 6,290,000
Latest tax year
Income taxes
Statutory federal income tax rate		21.00%
Earliest tax year
Income taxes
Statutory federal income tax rate		35.00%
State income taxes
Income taxes
Net operating loss carry forwards		$ 10,600,000
Other State Credits
Income taxes
Net operating loss carry forwards		$ 2,300,000

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Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Amount of income tax expense (benefit) from continuing operations attributable to an adjustment of a deferred tax liability or asset for enacted changes in tax laws or rates or a change in the tax status of the entity.

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The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.

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Amount of operating loss carryforward, before tax effects, available to reduce future taxable income under enacted tax laws.

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