Fair value of all liability derivatives designated as cash flow hedging instruments.

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The estimated net amount of existing gains or losses on cash flow hedges at the reporting date expected to be reclassified to earnings within the next 12 months.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of restricted investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Fixed interest rate related to the interest rate derivative.

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Nominal or face amount used to calculate payment on derivative.

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Fair value as of the balance sheet date of all interest rate derivative liabilities designated as cash flow hedging instruments.

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Amount of investment in marketable security.

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Amount, after tax and reclassification, of gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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NOTES PAYABLE AND LONG-TERM DEBT (Narrative) (Details) - USD ($)	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Feb. 26, 2020	May 26, 2010
Debt Instrument [Line Items]
Cash flow hedge, derivative instrument liabilities at fair value	$ 619,000	$ 65,000
Unrealized gain (loss) on interest rate swap	(438,000)	134,000
Valuation loss expected to be reclassified into earnings within the next 12 months	0
Securities on deposit	957,000	294,000
Collateral Pledged [Member]
Debt Instrument [Line Items]
Available-for-sale securities pledged as collateral	957,000	$ 294,000
Interest rate swap
Debt Instrument [Line Items]
Derivative, notional amount			$ 3,000,000	$ 9,000,000
Derivative, fixed interest rate			4.93%	8.49%
Cash flow hedge, liability at fair value	155,000
Interest rate swap
Debt Instrument [Line Items]
Derivative, notional amount			$ 9,000,000
Derivative, fixed interest rate			5.28%
Cash flow hedge, liability at fair value	$ 464,000