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Note 17 - Commitments and Contingencies | 12 Months Ended
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Jan. 31, 2022
Notes to Financial Statements |
Commitments and Contingencies Disclosure [Text Block] | 17. Commitments and Contingencies Contractual Obligations—During fiscal 2021 we entered into an agreement (the “Agreement”) with a major European defense contractor (the “Co-developer”) for the joint development and marketing of synthetic aperture sonar (“SAS”) systems. Under the terms of the Agreement, we are obligated to make payments upon completion of certain developmental milestones related to a license for use of the Co-developer’s underlying technology. Our total potential commitment, assuming achievement of all milestones contemplated in the Agreement, is approximately $1.6 million, of which approximately $748,000 and $337,000 was paid as of January 31, 2022 and 2021, respectively. Purchase Obligations—On January 31, 2022, the Company had approximately $6.4 million in purchase orders outstanding.

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