Revenue from Contracts with Customers (Tables)

12 Months Ended

Jan. 31, 2021

Revenue from Contract with Customer [Abstract]

Disaggregation of Revenue

The following table presents revenue from contracts with customers disaggregated by product line and timing of revenue recognition:

	Twelve Months Ended January 31,
	2021		2020
Revenue recognized at a point in time:	(in thousands)
Seamap	$	16,304	$	21,617
Klein	4,145		7,468
SAP	—		101
Total revenue recognized at a point in time	$	20,449	$	29,186
Revenue recognized over time:
Seamap	$	766	$	733
Klein	—		—
SAP	—		—
Total revenue recognized over time	766		733
Total revenue from contracts with customers	$	21,215	$	29,919

The following table presents revenue from contracts with customers disaggregated by geography, based on shipping location of our customers:

	Twelve Months Ended January 31,
	2021		2020
Revenue from contracts with customers:	(in thousands)
United States	$	3,687	$	3,920
Europe, Russia & CIS	8,512		15,262
Middle East & Africa	1,226		1,576
Asia-Pacific	6,523		5,377
Canada & Latin America	1,267		3,784
Total revenue from contracts with customers	$	21,215	$	29,919

Contract with Customer, Asset and Liability

As of January 31, 2021, contract assets and liabilities consisted of the following:

	January 31, 2021		January 31, 2020
Contract Assets:	(in thousands)
Unbilled revenue-current	$	85	$	13
Unbilled revenue - non-current	—		—
Total unbilled revenue	$	85	$	13
Contract Liabilities:
Deferred revenue & customer deposits - current	$	691	$	220
Deferred revenue & customer deposits - non-current	—		12
Total deferred revenue & customer deposits	$	691	$	232