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Note 17 - Segment Reporting (Tables)
12 Months Ended
Jan. 31, 2025
Notes Tables  
Schedule of Segment Reporting Information, by Segment [Table Text Block]
  

Year Ended January 31,

 
  

2025

  

2024

 
  

Seamap Marine Products

  

Corporate Expenses

  

Consolidated

  

Seamap Marine Products

  

Corporate Expenses

  

Consolidated

 

Revenues

 $46,863  $-  $46,863  $36,510  $-  $36,510 

Cost of sales

  25,896   -   25,896   20,539   -   20,539 

Selling, general and administrative

  6,293   4,998   11,291   5,807   6,335   12,142 

Research and development

  1,610   304   1,914   1,595   538   2,133 

Depreciation and amortization expense

  926   18   944   1,160   18   1,178 

Operating income (loss)

  12,138   (5,320)  6,818   7,409   (6,891)  518 

Capital expenditures

  416   21   437   287   3   290 
Reconciliation of Operating Profit (Loss) from Segments to Consolidated [Table Text Block]
  

As of January 31,

 
  

2025

  

2024

 

Seamap Marine Products

  12,138   7,409 

Corporate Expenses

  (5,320)  (6,891)

Operating income

  6,818   518 
         

Interest income (expense)

  4   (634)

Other income

  236   354 

Income from continuing operations before income taxes

  7,058   238 
Reconciliation of Assets from Segment to Consolidated [Table Text Block]
  

Year Ended January 31,

 

Assets

 

2025

  

2024

 

Seamap Marine Products

 $35,740  $32,526 

Corporate

  980   965 

Total Assets

 $36,720  $33,491 
Long-Lived Assets by Geographic Areas [Table Text Block]
  

Year Ended January 31,

 
  

2025

  

2024

 

Property and Equipment, Net and Right-of-Use Operating Lease Assets

        

Foreign:

        

The United Kingdom

 $245  $260 

Singapore

  711   338 

Malaysia

  391   735 

Total Foreign

  1,347   1,333 

United States

  863   809 

Total PP&E net and ROU Assets

 $2,210  $2,142