Accumulated Other Comprehensive Loss - Narrative (Details) - USD ($)	12 Months Ended
	Mar. 31, 2025	Mar. 31, 2011	Mar. 31, 2024	Mar. 31, 2023	Mar. 31, 2005
Accumulated Other Comprehensive Income (Loss) [Line Items]
Deferred taxes related to adjustments included in AOCI	$ (6,530,121)		$ 636,000	$ (6,371,000)
Tax effect from pension plan	201,000
Amount of charge in the minimum pension liability component of other comprehensive income					$ 406,000
Pension Plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss), net of tax	7,251,000	$ (7,605,000)
Tax expense (benefit) from reclassification	(7,050,000)
Pension Plans | Deferred Tax Asset Valuation Allowance in Fiscal 2011
Accumulated Other Comprehensive Income (Loss) [Line Items]
Tax expense (benefit) from reclassification	(7,605,000)
Pension Plans | Deferred Tax Asset Valuation Allowance in Fiscal 2005
Accumulated Other Comprehensive Income (Loss) [Line Items]
Tax expense (benefit) from reclassification	(406,000)
Defined Benefit Postretirement Life Insurance
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss), net of tax	$ 194,000	(747,000)
Postretirement Benefit Plans
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other comprehensive income (loss), net of tax		$ (935,000)