SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Earnings per share - (Details 1 - USD ($) $ / shares in Units, shares in Thousands	3 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Basic Numerator: Net income available to common stockholders	$ 2,264,000	$ 3,135,000
Basic Denominator: Weighted average shares outstanding	6,865	6,304
Basic income per common share	$ 0.33	$ 0.50
Common Class C [Member]
Basic Numerator: Net income available to common stockholders	$ 36,000	$ 50,000
Basic Denominator: Weighted average shares outstanding	383	383
Basic income per common share	$ 0.10	$ 0.13
Diluted Denominator: Weighted average shares outstanding	383	383
Convertible Class C Stock	0	0
Total Denominator for diluted earnings per share	383	383
Diluted income per common share	$ 0.10	$ 0.13
Preferred Class A [Member]
Basic Numerator: Net income available to common stockholders	$ 108,000	$ 146,000
Basic Denominator: Weighted average shares outstanding	313	313
Basic income per common share	$ 0.34	$ 0.46
Common Stock [Member]
Basic Numerator: Net income available to common stockholders	$ 2,120,000	$ 2.939
Basic Denominator: Weighted average shares outstanding	6,169	6,304
Basic income per common share	$ 0.34	$ 0.47
Diluted Denominator: Weighted average shares outstanding	6,168	6,304
Convertible Class C Stock	128	128
Total Denominator for diluted earnings per share	6,296	6,432
Diluted income per common share	$ 0.34	$ 0.46