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Note 5 - Acquisitions (Tables)
12 Months Ended
Nov. 30, 2022
Notes Tables  
Asset Acquisition [Table Text Block]

Accounts receivable

 $465 

Prepaid expenses

  165 

Inventory

  82 

Property and equipment

  180 

Patents

  2,810 

Total acquired assets

 $3,702 
Schedule of Recognized Identified Assets Acquired and Liabilities Assumed [Table Text Block]

Cash

 $300 

Accounts receivable

  38 

Inventory

  36 

Trademarks

  360 

Customer list intangible

  70 

Accounts payable

  (59)

Deferred revenue

  (14)

Goodwill

  1,442 

Net assets acquired

 $2,173 
Schedule of Business Acquisitions, by Acquisition [Table Text Block]

Inventory

 $117 

Patents

  60 

Goodwill

  165 

Net asset acquired

 $342