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Note 9 - Commitments and Contingencies (Tables)
3 Months Ended
Mar. 31, 2024
Notes Tables  
Schedule of Product Warranty Liability [Table Text Block]
  

Three Months Ended March 31,

 
  

2024

  

2023

 

Balance at beginning of period

 $16,906  $24,082 

Warranties issued

  100   362 

Repairs, replacement and refund

  (4,015)  (672)

Changes in liability for pre-existing warranties

  (118)  (4,046)

Balance at end of period

 $12,873  $19,726 
Contractual Obligation, Fiscal Year Maturity [Table Text Block]

2024 (remaining nine months)

 $269,531 

2025

  329,050 

2026

  1,600 

2027

  29,993 

Total

 $630,174