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Note 15 - Quarterly Financial Data (Unaudited) (Tables)
12 Months Ended
Mar. 31, 2022
Notes Tables  
Quarterly Financial Information [Table Text Block]

Quarter Ended:

 

June 30, 2021

  

September 30, 2021

  

December 31, 2021

  

March 31, 2022

 
                 

Sales

 $79,312  $67,386  $60,717  $66,002 

Gross Profit

 $21,780  $19,174  $17,725  $19,397 

Income from operations

 $5,419  $8,087  $5,147  $7,057 

Net income

 $4,428  $6,349  $4,257  $6,066 

Diluted net income per common share

 $0.22  $0.31  $0.21  $0.30 
                 

Quarter Ended:

 

June 30, 2020

  

September 30, 2020

  

December 31, 2020

  

March 31, 2021

 
                 

Sales

 $96,204  $75,436  $65,896  $71,679 

Gross Profit

 $26,785  $23,018  $19,623  $20,522 

Income from operations

 $9,436  $10,471  $9,293  $8,387 

Net income

 $7,768  $8,412  $7,611  $6,812 

Diluted net income per common share

 $0.39  $0.42  $0.38  $0.34