Note 9 - Leases (Tables)

6 Months Ended

Sep. 30, 2025

Notes Tables

Lease, Cost [Table Text Block]

	Three Months Ended September 30,				Six Months Ended September 30,
	2025		2024		2025		2024
	(in thousands)				(in thousands)
Lease cost
Operating lease cost	$	45	$	48	$	90	$	100
The supplemental cash flow information related to leases are as follows:
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases		37		42		83		95
Right-of-use assets obtained in exchange for lease obligations:
Operating leases		—		313		—		313
Finance leases		—		6		—		6

Summary of Information Relating To Lease Term And Discount Rate [Table Text Block]

Weighted average remaining lease term (in months)	As of September 30, 2025			As of September 30, 2024
Operating leases		30.2			41.3
Finance leases		44.2			56.2
Weighted average discount rate
Operating leases		10.38	%		10.39	%
Finance leases		10.50	%		10.50	%

Operating and Finance Lease Liability Maturity [Table Text Block]

(in thousands)	Operating Leases			Finance Leases
2026	$	93		$	1
2027		187			2
2028		118			2
2029		51			2
2030		—			—
Thereafter		—			—
Total lease payments	$	449		$	7
Less: Imputed interest		(53	)		(1	)
Total	$	396		$	6