v3.26.1
Note 12 - Segment Information (Tables)
9 Months Ended
Jun. 30, 2026
Notes Tables  
Segment Reporting [Table Text Block]
  

Three Months Ended

  

Nine Months Ended

 
  

June 30, 2026

  

June 30, 2025

  

June 30, 2026

  

June 30, 2025

 

Revenue:

                

Smart Water

 $4,622  $10,518  $14,106  $27,278 

Energy Solutions

  5,851   8,107   30,116   34,977 

Intelligent Industrial

  5,246   6,136   16,656   17,596 

Corporate

  85   82   254   238 
   15,804   24,843   61,132   80,089 
                 

Cost of revenue:

                

Smart Water

  3,394   5,946   10,025   16,670 

Energy Solutions

  7,596   6,213   33,619   19,337 

Intelligent Industrial

  4,274   5,107   13,499   14,545 

Corporate

  44   38   103   101 
   15,308   17,304   57,246   50,653 
                 

Gross profit (loss):

                

Smart Water

  1,228   4,572   4,081   10,608 

Energy Solutions

  (1,745)  1,894   (3,503)  15,640 

Intelligent Industrial

  972   1,029   3,157   3,051 

Corporate

  41   44   151   137 
   496   7,539   3,886   29,436 
                 

Operating expenses:

                

Smart Water

  2,176   2,339   7,452   6,585 

Energy Solutions

  2,845   3,128   9,303   10,260 

Intelligent Industrial

  1,436   2,070   5,021   6,319 

Corporate

  4,177   4,249   13,914   12,965 
   10,634   11,786   35,690   36,129 
                 

Gain on disposal of property

     4,616      4,616 
                 

Income (loss) from operations:

                

Smart Water

  (948)  2,233   (3,371)  4,023 

Energy Solutions

  (4,590)  (1,234)  (12,806)  5,380 

Intelligent Industrial

  (464)  (1,041)  (1,864)  (3,268)

Corporate

  (4,136)  411   (13,763)  (8,212)
   (10,138)  369   (31,804)  (2,077)
                 

Other segment disclosures:

                
                 

Interest income:

                

Smart Water

            

Energy Solutions

  464   403   1,598   1,202 

Intelligent Industrial

            

Corporate

  57   134   173   773 
   521   537   1,771   1,975 

Interest expense:

                

Smart Water

            

Energy Solutions

  40      112    

Intelligent Industrial

            

Corporate

     44      131 
   40   44   112   131 
                 

Depreciation and amortization expenses:

                

Smart Water

  502   118   999   351 

Energy Solutions

  1,218   1,417   4,798   4,827 

Intelligent Industrial

  547   121   1,010   375 

Corporate

  363   743   1,093   2,105 
   2,630   2,399   7,900   7,658 
                 
                 

Inventory obsolescence and stock-based compensation expenses:

                

Smart Water

  96   51   457   74 

Energy Solutions

  293   42   1,351   1,117 

Intelligent Industrial

  267   271   892   338 

Corporate

  160   135   634   771 
   816   499   3,334   2,300 
                 
Schedule of Revenue Generated by the Company's Subsidiaries [Table Text Block]
  

Three Months Ended

  

Nine Months Ended

 
  

June 30, 2026

  

June 30, 2025

  

June 30, 2026

  

June 30, 2025

 

United States

 $14,780  $23,839  $57,845  $76,888 

Canada

  362   335   1,246   1,234 

United Kingdom

  662   669   2,041   1,967 
  $15,804  $24,843  $61,132  $80,089 
Segment Reporting, Reconciliation of Revenue by Segment to Consolidated [Table Text Block]
  

Three Months Ended

  

Nine Months Ended

 
  

June 30, 2026

  

June 30, 2025

  

June 30, 2026

  

June 30, 2025

 

Asia (including Russian Federation)

 $3,189  $1,484  $5,793  $23,111 

Canada

  485   1,094   2,536   1,987 

Europe

  873   2,119   2,638   4,633 

Mexico

  368   240   476   2,332 

United States

  8,906   18,333   42,303   45,861 

South America

  1,450   1,390   5,753   1,742 

Other

  533   183   1,633   423 
  $15,804  $24,843  $61,132  $80,089 
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Long-Lived Asset [Table Text Block]
  

June 30, 2026

  

September 30, 2025

 

United States

 $55,158  $63,332 

Canada

  333   366 

Colombia

  421   392 

United Kingdom

  406   447 
  $56,318  $64,537