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Note 6 - Income Taxes (Tables)
12 Months Ended
Sep. 30, 2022
Notes Tables  
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
  

September 30,

  

September 30,

  

September 30,

 

(In thousands)

 

2022

  

2021

  

2020

 

Current:

            

Federal

 $13,230  $5,154  $1,966 

State

  1,532   440   175 

Foreign

  48   -   - 

Current income tax expense

  14,810   5,594   2,142 

Deferred:

            

Federal

  (509)  (234)  (252)

State

  6   47   (26)

Foreign

  165   -   - 

Deferred income tax expense

  (334)  (187)  (280)

Income tax expense

 $14,472  $5,407  $1,862 
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
  

September 30,

  

September 30,

  

September 30,

 
  

2022

  

2021

  

2020

 

Federal statutory rate

  21.0%  21.0%  21.0%

State income taxes

  2.1%  2.2%  2.0%

Foreign income taxes

  0.4%  -   - 

Permanent differences

  4.6%  -   - 

Change in valuation allowance

  -   -   (0.5%)

Expiration and utilization of state NOL’s

  -   -   0.4%

Research and development credits

  (0.5%)  (0.7%)  (2.5%)

Excess tax expense (benefits) from stock-based compensation

  (4.9%)  (1.5%)  (0.1%)

Effective Tax rate

  22.7%  21.0%  20.3%
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
  

September 30,

  

September 30,

 

(In thousands)

 

2022

  

2021

 

Deferred income tax assets (liabilities):

        

Intangibles

 $(102) $(92)

Property and equipment depreciation

  (1,068)  (381)

Net operating loss carry forwards and credits

  256   300 

Stock-based compensation

  416   231 

Inventories

  813   519 

Prepaid expenses

  (163)  (48)

Accrued expenses and reserves

  1,020   519 

Foreign currency translation

  180   - 

Unrealized loss on investments

  365   - 

Goodwill

  (1,077)  (683)

Net deferred tax asset

 $640  $365