INCOME TAXES (Details) - USD ($)	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
INCOME TAXES
Federal income taxes	$ 1,200,000	$ 3,000,000	$ 1,200,000	$ 3,000,000
State taxes	855,000	614,000	896,000	649,000
Payment to state tax jurisdiction exceeding threshold percentage	$ 0	$ 0	$ 0	$ 0
Threshold percentage on taxable income	5.00%	5.00%	5.00%	5.00%
Proceeds from income tax refund, state and local			$ 642,000	$ 19,000
Proceeds from income tax refund, federal		$ 16,000	977,000	65,000
Minnesota
INCOME TAXES
Tax payments made to individual state jurisdictions	$ 215,000		215,000
TEXAS
INCOME TAXES
Tax payments made to individual state jurisdictions	165,000	110,000	165,000	110,000
Illinois
INCOME TAXES
Tax payments made to individual state jurisdictions	160,000	250,000	160,000	250,000
KANSAS
INCOME TAXES
Tax payments made to individual state jurisdictions	160,000		160,000
ARIZONA
INCOME TAXES
Tax payments made to individual state jurisdictions		30,000		30,000
Colorado
INCOME TAXES
Tax payments made to individual state jurisdictions	$ 155,000	$ 210,000	155,000	210,000
Georgia
INCOME TAXES
Tax payments made to individual state jurisdictions			$ 34,000	$ 27,000

Amount of cash paid to state tax jurisdictions for tax on income, exceeding the threshold percentage on taxable income.

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The threshold percentage on taxable income.

+ References

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 740
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 15
-Subparagraph (e)
-Publisher FASB
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Amount, before income tax refund received, of cash paid to federal (national) tax jurisdiction for tax on income.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2A
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482913/230-10-50-2A

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Amount, after income tax refund received, of cash paid to state and local tax jurisdictions for tax on income.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2A
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482913/230-10-50-2A

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Amount, before income tax refund received, of cash paid to state and local tax jurisdictions for tax on income.

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Amount of cash received from federal tax jurisdiction for refund of tax on income. Includes, but is not limited to, national tax received for non-U.S. jurisdiction.

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Amount of cash received from state and local tax jurisdictions for refund of tax on income.

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