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Note 8 - Accrued Expenses (Tables)
3 Months Ended
Mar. 31, 2022
Notes Tables  
Schedule of Accrued Liabilities [Table Text Block]
  

March 31,

  

December 31,

 
  

2022

  

2021

 

Sales commissions

 $2,012  $2,049 

Subcontracting labor

  1,977   1,622 

Salaries, bonuses and related benefits

  17,065   21,342 

Warranty accrual

  1,038   1,056 

Other

  8,024   8,384 
  $30,116  $34,453