Income Taxes (Details) - USD ($) $ in Millions	12 Months Ended
	Mar. 31, 2023	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2020	Mar. 31, 2018
Income Taxes (Details) [Line Items]
Income tax expense from operations	$ 0.1
Income tax (benefit)		$ (0.8)
income tax (benefit) substantially related		(0.8)
Income tax expense related to foreign income taxes	0.1
Tax (benefit) release of valuation allowances		(0.9)
Income taxes due to taxable income at state level and timing differences related to fixed asset depreciation	0.1
Net change in valuation allowance	2.5	2.2
Net operating loss carryforwards	41.1	$ 41.1	$ 41.1	$ 41.1
Deferred tax assets, operating loss carryforwards					$ 233.5
Deferred Tax Assets, Operating Loss Carryforwards, Not Subject to Expiration	209.0
Domestic Tax Authority [Member]
Income Taxes (Details) [Line Items]
Net operating loss carryforwards	63.7
Foreign Tax Authority [Member]
Income Taxes (Details) [Line Items]
Net operating loss carryforwards	22.6
State and Local Jurisdiction [Member]
Income Taxes (Details) [Line Items]
Net operating loss carryforwards	$ 63.7