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Note 15 - Income Taxes (Tables)
12 Months Ended
Sep. 30, 2019
Notes Tables  
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
   
Years Ended September 30,
 
   
2019
   
2018
 
Current
               
Federal
  $
-
    $
-
 
State
   
4
     
19
 
Foreign
   
-
     
-
 
Total current
   
4
     
19
 
Deferred
               
Federal
   
-
     
(22
)
State
   
-
     
-
 
Total deferred
   
-
     
(22
)
Total
  $
4
    $
(3
)
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
   
Years Ended September 30,
 
   
2019
   
2018
 
Income tax benefit at the federal statutory rate
  $
(1,905
)   $
(1,497
)
Permanent differences, net
   
541
     
1,534
 
State income tax (benefit)
   
(578
)    
(437
)
Change in statutory rate
   
-
     
3,839
 
Change in valuation allowance attributable to operations
   
1,925
     
(3,495
)
Other
   
21
     
53
 
Total
  $
4
    $
(3
)
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
   
As of September 30,
 
   
2019
   
2018
 
Deferred tax assets:
               
Accrued vacation
  $
46
    $
26
 
Bad debt reserve
   
24
     
49
 
Deferred revenue
   
717
     
90
 
AMT carryforward
   
23
     
22
 
Contribution carryforward
   
1
     
15
 
Depreciation
   
8
     
36
 
Intangibles
   
401
     
437
 
Net operating loss carryforwards
   
8,895
     
7,515
 
Total deferred tax assets
   
10,115
     
8,190
 
Valuation allowance
   
(10,093
)    
(8,168
)
Net deferred tax assets
  $
22
    $
22