CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands	Common Stock [Member] Common Class A [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, 2018	$ 347	$ 52	$ 15,650	$ (1,878)	$ 1,858	$ 9,513	$ 518	$ 26,060
Reclassification pursuant to adoption of ASU 2016-01, net of tax of $1,049					(2,089)	2,089
Balance at Jul. 01, 2018	347	52	15,650	(1,878)	(231)	11,602	518	26,060
Balance at Jun. 30, 2018	347	52	15,650	(1,878)	1,858	9,513	518	26,060
Purchases of shares of Common Stock (class A)				(2)				(2)
Issuance of stock under ESPP shares of Common Stock (class A)				2				2
Stock bonuses			(1)	2				1
Stock-based compensation expense			2					2
Other comprehensive income, net of tax					19		8	27
Net income (loss)						(1,149)	(83)	(1,232)
Balance at Sep. 30, 2018	347	52	15,651	(1,876)	(212)	10,453	443	24,858
Balance at Jun. 30, 2019	347	52	15,646	(1,888)	(206)	7,761	467	22,179
Purchases of shares of Common Stock (class A)				(3)				(3)
Issuance of stock under ESPP shares of Common Stock (class A)				1				1
Dividends declared						(114)		(114)
Stock bonuses			(1)	2				1
Other comprehensive income, net of tax					(13)		(4)	(17)
Net income (loss)						(3,567)	(48)	(3,615)
Balance at Sep. 30, 2019	$ 347	$ 52	$ 15,645	$ (1,888)	$ (219)	$ 4,080	$ 415	$ 18,432