CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Common Class A [Member] Common Stock [Member]	Common Class A [Member] Treasury Stock [Member]	Common Class A [Member]	Common Class C [Member] Common Stock [Member]	Common Class C [Member]	Additional Paid-in Capital [Member]	Treasury Stock [Member]	AOCI Attributable to Parent [Member]	Retained Earnings [Member]	Noncontrolling Interest [Member]	Total
Balance at Jun. 30, 2019	$ 347			$ 52		$ 15,646	$ (1,888)	$ (206)	$ 7,761	$ 467	$ 22,179
Balance (in Shares) at Jun. 30, 2019	13,866,751			2,068,797			804,959
Purchases of shares of Common Stock (class A)		$ (113)	$ (113)
Purchases of shares of Common Stock (class A) (in Shares)		105,721	105,721
Issuance of stock under ESPP shares of Common Stock (class A)						(1)	$ 4				3
Issuance of stock under ESPP shares of Common Stock (class A) (in Shares)							(1,648)
Conversion of shares of class C common stock for class A common stock (in Shares)	162			(162)
Dividends declared									(452)		(452)
Stock bonuses						(16)	$ 118				102
Stock bonuses (in Shares)							(53,600)
Stock-based compensation expense						(6)					(6)
Deconsolidation of non-controlling interest										(463)	(463)
Other comprehensive income, net of tax								202		114	316
Net income (loss)									(4,684)	$ (118)	(4,802)
Balance at Jun. 30, 2020	$ 347			$ 52		15,623	$ (1,879)	(4)	2,625		16,764
Balance (in Shares) at Jun. 30, 2020	13,866,913		13,866,913	2,068,635	2,068,635		855,432
Purchases of shares of Common Stock (class A)							$ (314)				(314)
Purchases of shares of Common Stock (class A) (in Shares)			53,151				53,151
Issuance of stock under ESPP shares of Common Stock (class A)						8	$ 5				13
Issuance of stock under ESPP shares of Common Stock (class A) (in Shares)							(2,330)
Dividends declared									(753)		(753)
Stock bonuses						3	$ 16				19
Stock bonuses (in Shares)							(7,300)
Stock-based compensation expense						43					43
Other comprehensive income, net of tax								6,591			6,591
Net income (loss)									31,961		31,961
Balance at Jun. 30, 2021	$ 347			$ 52		$ 15,677	$ (2,172)	$ 6,587	$ 33,833		$ 54,324
Balance (in Shares) at Jun. 30, 2021	13,866,913		13,866,913	2,068,635	2,068,635		898,953