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SALE OF PROPERTY (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Sale of Property
Repayment of mortgages payable	$ 2,074,000	$ 3,332,000
Prepayment costs on debt related to real estate		290,000
Retail property, Onalaska, Wisconsin
Sale of Property
Proceeds from sale of real estate, net of closing costs			$ 7,093,000
Gain on Sale of Real Estate, Net		4,252,000
Repayment of mortgages payable		3,332,000
Prepayment costs on debt related to real estate		$ 290,000

X

- Definition

Proceeds, net of closing costs received from the sale of real estate during the current period.

+ References

No definition available.

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X

- Definition

The difference between the carrying value and the sale price of real estate or properties that were intended to be sold or held for capital appreciation or rental income. This element refers to the gain (loss) included in earnings and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method.

+ References

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-Publisher FASB
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-SubTopic 10
-Section 50
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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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- Definition

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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- Definition

The cash outflow to repay long-term debt that is wholly or partially secured by collateral. Excludes repayments of tax exempt secured debt.

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