Note 16 - Stock Option Plans (Tables)

12 Months Ended

Jan. 31, 2024

Notes Tables

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

	Year Ended January 31,
	2023
Risk free interest rate		2.69% - 3.03%
Expected life (in years)		5.50 - 6.50
Expected volatility		68% -70%
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, 2023		410		$	28.41		5.91	$	—
Granted		—			—
Exercised		—			—
Forfeited		(35	)		39.67
Expired		(16	)		13.23
Outstanding, January 31, 2024		359		$	27.98		5.07	$	—
Exercisable at January 31, 2024		284		$	32.35		4.25	$	—
Nonvested at January 31, 2024		75		$	11.32		8.21	$	—

Share-Based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity [Table Text Block]

	Year Ended January 31, 2024
	Number of			Weighted Average
	Shares			Grant Date Fair
	(in thousands)			Value
Unvested, beginning of period		1		$	10.00
Granted		—			—
Vested		(1	)		10.00
Canceled		—			—
Unvested, end of period		—		$	—