Leases (Details) - USD ($) $ in Millions	12 Months Ended
Mar. 31, 2022	Mar. 31, 2021
Leases (Details) [Line Items]
Description of operating lease	The Company leases a space at a location under a non-cancellable operating lease with a remaining lease term of 1 year, which expired in fiscal year 2022 and was renewed for an additional year. On December 22, 2020, the Company acquired CPS which included the assumption of an operating lease for a 55,120 square foot light manufacturing facility located in Addison Illinois, expiring June 30, 2024.
Operating leases total	$ 0.3	$ 0.3
Borrowing rate		8.50%
CHICAGO BOARD OF TRADE [Member]
Leases (Details) [Line Items]
Operating leases total	0.1	$ 0.1
Lease Agreements [Member]
Leases (Details) [Line Items]
Rent expense	0.3
Operating leases total	$ 0.8	$ 0.5

The Company leases a space at a location under a non-cancellable operating lease with a remaining lease term of 1 year, which expired in fiscal year 2022 and was renewed for an additional year. On December 22, 2020, the Company acquired CPS which included the assumption of an operating lease for a 55,120 square foot light manufacturing facility located in Addison Illinois, expiring June 30, 2024.

8.50%

Leases (Details) [Line Items]

Rent expense

0.3