Note 4 - Revenue From Contracts With Customers (Tables)

12 Months Ended

Jan. 31, 2025

Notes Tables

Disaggregation of Revenue [Table Text Block]

	Twelve Months Ended January 31,
	2025		2024
	(in thousands)
Total revenue recognized at a point in time	$	45,189	$	35,556
Total revenue recognized over time	$	1,674	$	954
Total revenue from contracts with customers	$	46,863	$	36,510

	Twelve Months Ended January 31,
	2025		2024
Revenue from contracts with customers:	(in thousands)
United States	$	2,478	$	1,086
China		17,720		7,668
Norway		21,956		14,385
Turkey		634		5,216
Singapore		366		2,192
Canada		—		1,882
Other		3,709		4,081
Total revenue from contracts with customers	$	46,863	$	36,510

Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block]

	January 31, 2025			January 31, 2024
Contract Assets:	(in thousands)
Contract assets, beginning balance	$	26		$	2
Revenue accrued	$	20		$	26
Amounts billed		(26	)		(2	)
Total unbilled revenue	$	20		$	26
Contract Liabilities:
Contract liabilities, beginning balance	$	3,649		$	359
Deferred revenue and customer deposits	$	1,526		$	3,614
Revenue recognized		(3,383	)		(324	)
Total deferred revenue & customer deposits	$	1,792		$	3,649