Note 20 - Concentrations	12 Months Ended
Jan. 31, 2023
Notes to Financial Statements
Concentration Risk Disclosure [Text Block]	20. Concentrations Credit Risk— As of January 31, 2023, we had two customers that individually exceeded 10% of consolidated accounts receivable. During fiscal 2022, we had two customers that individually exceeded 10% of consolidated accounts receivable. Revenue Risk— In fiscal 2023 and 2022, our single largest customer accounted for approximately 17% and 23%, respectively, of our consolidated revenues, with these revenues being generated from the Seamap Marine Products segment. Together, our five largest customers accounted for approximately 47% and 51% of our consolidated revenues in fiscal 2023 and fiscal 2022, respectively. The Company maintains deposits and certificates of deposit with banks which may exceed the Federal Deposit Insurance Corporation (“FDIC”) insured limit and money market accounts which are not FDIC insured. In addition, deposits aggregating approximately $370,000 at January 31, 2023 are held in foreign banks. Management believes the risk of loss in connection with these accounts is minimal. Supplier Concentration—The Company has satisfactory relationships with its suppliers. However, should those relationships deteriorate, the Company may have difficulty in obtaining new technology requested by its customers and maintaining the existing equipment in accordance with manufacturers’ specifications.

Note 20 - Concentrations

12 Months Ended

Jan. 31, 2023

Concentration Risk Disclosure [Text Block]

20. Concentrations

Credit Risk— As of January 31, 2023, we had two customers that individually exceeded 10% of consolidated accounts receivable. During fiscal 2022, we had two customers that individually exceeded 10% of consolidated accounts receivable.

Revenue Risk— In fiscal 2023 and 2022, our single largest customer accounted for approximately 17% and 23%, respectively, of our consolidated revenues, with these revenues being generated from the Seamap Marine Products segment. Together, our five largest customers accounted for approximately 47% and 51% of our consolidated revenues in fiscal 2023 and fiscal 2022, respectively.

The Company maintains deposits and certificates of deposit with banks which may exceed the Federal Deposit Insurance Corporation (“FDIC”) insured limit and money market accounts which are not FDIC insured. In addition, deposits aggregating approximately $370,000 at January 31, 2023 are held in foreign banks. Management believes the risk of loss in connection with these accounts is minimal.

Supplier Concentration—The Company has satisfactory relationships with its suppliers. However, should those relationships deteriorate, the Company may have difficulty in obtaining new technology requested by its customers and maintaining the existing equipment in accordance with manufacturers’ specifications.