Income Taxes - Provision for income taxes (income tax benefits) (Details) - USD ($) $ in Thousands	3 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Current:
U.S. federal	$ 0
State & local	0
Total current	0
Deferred:
U.S. federal	(128)
State & local	0
Total deferred	(128)
Income tax benefit	$ (128)	$ (0)
Discontinued Operations [Member]
Current:
U.S. federal		144
State & local		0
Total current		145
Deferred:
U.S. federal		0
State & local		1
Total deferred		0
Income tax benefit		$ 145