Discontinued Operations - Details of statements of operations from discontinued operations (Details) - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2024	Dec. 31, 2023
Net revenues	$ 7,935,000	$ 8,510,000	$ 15,858,000	$ 17,065,000
Costs and Expenses:
Salaries, wages and benefits	2,713,000	2,668,000	5,791,000	5,285,000
Supplies	40,000	39,000	74,000	73,000
Rent and lease expense	93,000	92,000	187,000	183,000
Depreciation and amortization	324,000	318,000	637,000	618,000
Operating Profit (Loss)	(1,012,000)	(433,000)	(2,206,000)	(883,000)
Other Income (Expense):
Interest income, net	42,000	29,000	100,000	51,000
Loss from Continuing Operations before income taxes	(1,070,000)	(404,000)	(1,512,000)	(830,000)
Income Tax Expense	0	3,000	0	5,000
Loss from Discontinued Operations, net of tax	(273,000)	(2,668,000)	(380,000)	(3,584,000)
Life Sciences And Engineering Segment [Member]
Net revenues	(62,000)	2,771,000	(46,000)	5,443,000
Costs and Expenses:
Salaries, wages and benefits	104,000	1,844,000	115,000	3,742,000
Supplies	0	267,000	0	556,000
Purchased services	25,000	600,000	69,000	1,307,000
Other operating expense	(28,000)	529,000	(4,000)	1,057,000
Rent and lease expense	0	34,000	0	67,000
Depreciation and amortization	0	133,000	0	266,000
Operating Profit (Loss)	(163,000)	(636,000)	(226,000)	(1,552,000)
Other Income (Expense):
Impairment loss of Trace Hospital Real Estate and related sale expenses	0	(2,032,000)	(44,000)	(2,032,000)
Gain (Loss) on Disposition of Other Financial Assets	(110,000)	0	(110,000)	0
Loss from Discontinued Operations before income taxes	(273,000)	(2,668,000)	(380,000)	(3,584,000)
Income Tax Expense	0	0	0	0
Loss from Discontinued Operations, net of tax	$ (273,000)	$ (2,668,000)	$ (380,000)	$ (3,584,000)