SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Earnings Per Share - (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Sep. 30, 2023	Sep. 30, 2022
Basic Numerator: Net income available to common stockholders	$ 4,106	$ 2,047
Basic Denominator: Weighted average shares outstanding	6,408	6,545
Basic income per common share	$ 0.64	$ 0.31
Common Class C [Member]
Basic Numerator: Net income available to common stockholders	$ 64	$ 32
Basic Denominator: Weighted average shares outstanding	383	383
Basic income per common share	$ 0.17	$ 0.08
Diluted Denominator: Weighted average shares outstanding	383	383
Convertible Class C Stock
Total Denominator for Diluted Earnings Per Share	383	383
Diluted Income per Common Share	$ 0.17	$ 0.08
Common Stock [Member]
Basic Numerator: Net income available to common stockholders	$ 3,855	$ 1,923
Basic Denominator: Weighted average shares outstanding	6,408	6,545
Basic income per common share	$ 0.60	$ 0.29
Diluted Denominator: Weighted average shares outstanding	6,408	6,545
Convertible Class C Stock	128	128
Total Denominator for Diluted Earnings Per Share	6,536	6,673
Diluted Income per Common Share	$ 0.59	$ 0.29