Description of Business, Basis of Presentation and Summary of Significant Accounting Policies - Intangible Assets (Details) - USD ($)	3 Months Ended		6 Months Ended		12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2025	Dec. 31, 2024	Jun. 30, 2025
Intangible assets
Amortization expense	$ 74,000	$ 79,000	$ 149,000	$ 157,000
Changes in intangible assets
Carrying value	13,848,000		13,848,000		$ 13,848,000
Accumulated amortization	(10,710,000)		(10,710,000)		(10,561,000)
Net book value	3,138,000		3,138,000		$ 3,287,000
Future amortization expense
2027	283,000		283,000
2028	269,000		269,000
2029	210,000		210,000
2030	202,000		202,000
2031	202,000		$ 202,000
Weighted average remaining period			13 years 8 months 12 days		14 years 1 month 6 days
Customer relationships
Changes in intangible assets
Carrying value	9,800,000		$ 9,800,000		$ 9,800,000
Accumulated amortization	(9,596,000)		(9,596,000)		(9,549,000)
Net book value	204,000		204,000		251,000
Trade name
Changes in intangible assets
Carrying value	4,048,000		4,048,000		4,048,000
Accumulated amortization	(1,114,000)		(1,114,000)		(1,012,000)
Net book value	$ 2,934,000		$ 2,934,000		$ 3,036,000