Note 16 - Stock Option Plans (Tables)

12 Months Ended

Jan. 31, 2025

Notes Tables

Schedule of Share-Based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block]

	Year Ended January 31,
	2025
Risk free interest rate		3.54%-4.47%
Expected life (in years)		5.52-6.87
Expected volatility		66% -82%
Expected dividend yield		0.00	%

Share-Based Payment Arrangement, Option, Activity [Table Text Block]

						Weighted
						Average
				Weighted		Remaining		Aggregate
	Number of			Average		Contractual		Intrinsic
	Shares			Exercise		Term		Value
	(in thousands)			Price		(in years)		(in thousands)
Outstanding, January 31, 2024		358		$	27.99		5.07	$	—
Granted		418			5.90
Exercised		—			—
Forfeited		(7	)		13.14
Expired		(148	)		33.76
Outstanding, January 31, 2025		621		$	11.93		7.93	$	—
Exercisable at January 31, 2025		183		$	26.13		3.66	$	—
Nonvested at January 31, 2025		438		$	6.00		9.72	$	—