Note C - CB Oncology Partners - Financial Information (Details) - USD ($)	3 Months Ended		12 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024	Dec. 31, 2023
Rental Income	$ 0	$ 0
Current assets	3,730,000		$ 4,249,000
Net income	(424,000)	(312,000)	(2,055,000)	$ (816,000)
EHSHI's equity in earnings of BOPRE	(0)	2,000
Total assets	4,319,000		4,321,000
Current liabilities	51,000		94,000
Equity	4,228,000		4,178,000	$ 645,000
Total liabilities and equity	4,319,000		4,321,000
CB Oncology Partners ("CBOP") [Member]
EHSHI's equity in earnings of BOPRE	(92,000)	(103,000)
CB Oncology Partners ("CBOP") [Member]
Rental Income	285,000	319,000
Current assets	277,000		347,000
Net income	(305,000)	$ (360,000)
Noncurrent assets	1,636,000		1,785,000
Total assets	1,913,000		2,132,000
Current liabilities	4,224,000		4,067,000
Noncurrent liabilities	3,500,000		3,572,000
Equity	(5,811,000)		(5,507,000)
Total liabilities and equity	$ 1,913,000		$ 2,132,000