Condensed Consolidated Statements of Shareholders' Equity (Unaudited) - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Noncontrolling Interest [Member]	Total
Balance (in shares) at Jun. 30, 2021	3,913
Balance at Jun. 30, 2021	$ 12,178,000	$ 4,233,000	$ 6,824,000	$ 2,399,000	$ 419,000	$ 26,053,000
Stock option expenses	0	459,000	0	0	0	459,000
Net income	$ 0	0	1,605,000	0	(25,000)	1,580,000
Exercise of stock option (in shares)	116
Exercise of stock option	$ 429,000	0	0	0	0	429,000
Translation adjustment	$ 0	0	0	(7,000)	(15,000)	(22,000)
Balance (in shares) at Mar. 31, 2022	4,029
Balance at Mar. 31, 2022	$ 12,607	4,692	8,429	2,392	257	28,377
Dividend declared by subsidiary	$ 0	0	0	0	(122,000)	(122,000)
Balance (in shares) at Jun. 30, 2022	4,072
Balance at Jun. 30, 2022	$ 12,750,000	4,708,000	9,219,000	1,197,000	128,000	28,002,000
Stock option expenses	0	337,000	0	0	0	337,000
Net income	$ 0	0	1,382,000	0	215,000	1,597,000
Exercise of stock option (in shares)	5
Exercise of stock option	$ 19,000	0	0	0	0	19,000
Translation adjustment	$ 0	0	0	609,000	(88,000)	521,000
Balance (in shares) at Mar. 31, 2023	4,077
Balance at Mar. 31, 2023	$ 12,769,000	$ 5,045,000	$ 10,601,000	$ 1,806,000	$ 255,000	$ 30,476,000