SEGMENT AND RELATED INFORMATION - Summarized segments - (Details) - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Revenue from External Customer [Line Items]
Net revenues from external customers	$ 26,043	$ 24,960
Total Research and development costs	440	307
Selling, general and administrative expenses	6,813	5,130
Manufacturingand Servicingof Medical Equipment [Member]
Revenue from External Customer [Line Items]
Net revenues from external customers	2,543	2,157
Salaries and wages	949	900
Rent expense
Other Cost of sales expenses**	442	479
Total Cost of sales	1,391	1,379
Salaries and wages	219	185
Other research and development costs**	221	122
Total Research and development costs	440	307
Salaries and wages	476	501
Rent expense	313	313
Other selling, general and administrative expenses**	1,127	700
Total Selling, general and administrative expenses	1,916	1,514
Total costs and expenses	3,747	3,200
(Loss) Income from operations	(1,204)	(1,043)
Investment income	21	30
Other income (expense)	16	13
(Loss) Income before provision for income taxes	(1,167)	(1,000)
Provision for income taxes	(931)	(1,132)
Net (Loss) income	(2,098)	(2,132)
Intersegment net revenues *	306	289
Depreciation and amortization	44	51
Total identifiable assets	33,062	37,593
Managementof Diagnostic Imaging Centers [Member]
Revenue from External Customer [Line Items]
Net revenues from external customers	23,500	22,803
Salaries and wages	4,868	4,680
Rent expense	1,253	1,166
Other Cost of sales expenses**	8,084	7,692
Total Cost of sales	14,205	13,538
Salaries and wages
Other research and development costs**
Total Research and development costs
Salaries and wages	2,685	2,668
Rent expense	18	24
Other selling, general and administrative expenses**	2,194	924
Total Selling, general and administrative expenses	4,897	3,616
Total costs and expenses	19,102	17,154
(Loss) Income from operations	4,398	5,649
Investment income	453	609
Other income (expense)	(2)	(9)
(Loss) Income before provision for income taxes	4,849	6,249
Provision for income taxes	(81)	(117)
Net (Loss) income	4,768	6,132
Intersegment net revenues *
Depreciation and amortization	1,146	1,012
Total identifiable assets	185,215	174,697
Total
Revenue from External Customer [Line Items]
Net revenues from external customers	26,043	24,960
Salaries and wages	5,817	5,580
Rent expense	1,253	1,166
Other Cost of sales expenses**	8,526	8,171
Total Cost of sales	15,596	14,917
Salaries and wages	219	185
Other research and development costs**	221	122
Total Research and development costs	440	307
Salaries and wages	3,161	3,169
Rent expense	331	337
Other selling, general and administrative expenses**	3,321	1,624
Total Selling, general and administrative expenses	6,813	5,130
Total costs and expenses	22,849	20,354
(Loss) Income from operations	3,194	4,606
Investment income	474	639
Other income (expense)	14	4
(Loss) Income before provision for income taxes	3,682	5,249
Provision for income taxes	(1,012)	(1,249)
Net (Loss) income	2,670	4,000
Intersegment net revenues *	306	289
Depreciation and amortization	1,190	1,063
Total identifiable assets	$ 218,277	$ 212,290