SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Earnings Per Share - (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Basic Numerator: Net income available to common stockholders	$ 2,047	$ 3,887
Basic Denominator: Weighted average shares outstanding	6,545	6,554
Basic income per common share	$ 0.31	$ 0.59
Common Stock [Member]
Basic Numerator: Net income available to common stockholders	$ 1,923	$ 3,652
Basic Denominator: Weighted average shares outstanding	6,545	6,554
Basic income per common share	$ 0.29	$ 0.56
Diluted Denominator: Weighted average shares outstanding	6,545	6,554
Convertible Class C Stock	128	128
Common Class C [Member]
Basic Numerator: Net income available to common stockholders	$ 32	$ 60
Basic Denominator: Weighted average shares outstanding	383	383
Basic income per common share	$ 0.08	$ 0.16
Diluted Denominator: Weighted average shares outstanding	383	383
Convertible Class C Stock