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Note 1 - Interim Financial Information (Tables)
9 Months Ended
May 31, 2023
Notes Tables  
Schedule of Error Corrections and Prior Period Adjustments [Table Text Block]
   

As of May 31, 2023

 
   

As Reported

   

Adjustments

   

As Restated

 
                         

Receivables: Trade, excluding joint ventures, less allowance for doubtful accounts of $439,000 as of May 31, 2023

  $ 15,311,650     $ (1,139,757 )   $ 14,171,893  

Total current assets

    39,289,907       (1,139,757 )     38,150,150  

Total assets

    87,313,423       (1,139,757 )     86,173,666  

Accrued liabilities: Payroll and related benefits

    2,035,785       (200,000 )     1,835,785  

Total current liabilities

    15,550,561       (200,000 )     15,350,561  

Retained earnings

    51,662,515       (939,757 )     50,722,758  

Stockholders’ equity

    66,397,187       (939,757 )     65,457,430  

Total equity

    69,930,948       (939,757 )     68,991,191  

Total liabilities and equity

    87,313,423       (1,139,757 )     86,173,666  
   

Three Months Ended May 31, 2023

 
   

As Reported

   

Adjustments

   

As Restated

 
                         

Cost of goods sold

  $ 13,280,584     $ 109,289     $ 13,389,873  

Gross profit

    7,689,142       (109,289 )     7,579,853  

Selling expenses

    3,723,165       169,987       3,893,152  

General and administrative expenses

    3,150,643       55,002       3,205,645  

Research and development expenses

    1,150,711       131,728       1,282,439  

Total operating expenses

    8,024,519       356,717       8,381,236  

Operating income

    2,372,592       (466,006 )     1,906,586  

Income before income tax expense

    2,245,300       (466,006 )     1,779,294  

Net income

    1,703,005       (466,006 )     1,236,999  

Net income attributable to NTIC

    1,525,596       (466,006 )     1,059,590  

Net income attributable to NTIC per common share:

                       

Basic

    0.16       (0.05 )     0.11  

Diluted

    0.16       (0.05 )     0.11  
   

Nine Months Ended May 31, 2023

 
   

As Reported

   

Adjustments

   

As Restated

 
                         

Cost of goods sold

  $ 38,747,865     $ 209,407     $ 38,957,272  

Gross profit

    20,445,452       (209,407 )     20,236,045  

Selling expenses

    10,649,316       346,987       10,996,303  

General and administrative expenses

    9,365,431       105,002       9,470,433  

Research and development expenses

    3,401,885       278,361       3,680,246  

Total operating expenses

    23,416,632       730,350       24,146,982  

Operating income

    4,489,475       (939,757 )     3,549,718  

Income before income tax expense

    4,165,327       (939,757 )     3,225,570  

Net income

    3,330,504       (939,757 )     2,390,747  

Net income attributable to NTIC

    2,913,086       (939,757 )     1,973,329  

Net income attributable to NTIC per common share:

                       

Basic

    0.31       0.10       0.21  

Diluted

    0.30       0.10       0.20  
   

Three Months Ended May 31, 2023

 
   

As Reported

   

Adjustments

   

As Restated

 
                         

Net income

  $ 1,703,005     $ (466,006 )   $ 1,236,999  

Comprehensive income

    1,610,777       (466,006 )     1,144,771  

Comprehensive income attributable to NTIC

    1,800,895       (466,006 )     1,334,889  
   

Nine Months Ended May 31, 2023

 
   

As Reported

   

Adjustments

   

As Restated

 
                         

Net income

  $ 3,330,504     $ (939,757 )   $ 2,390,747  

Comprehensive income

    3,719,072       (939,757 )     2,779,315  

Comprehensive income attributable to NTIC

    4,159,373       (939,757 )     3,219,616  
   

Nine Months Ended May 31, 2023

 
   

As Reported

   

Adjustments

   

As Restated

 
                         

Net income

  $ 3,330,504     $ (939,757 )   $ 2,390,747  

Receivables: Trade, excluding joint ventures

    (1,502,567 )     1,139,757       (362,810 )

Accrued liabilities

    (209,459 )     (200,000 )     (409,459 )