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Note 8 - Federal, State and Local Income Taxes (Tables)
6 Months Ended
Oct. 31, 2020
Notes Tables  
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
   
Three Months Ended October 31,
   
Six Months Ended October 31,
 
($ in thousands)
 
2020
   
2019
   
2020
   
2019
 
Current tax expense:
                               
Federal
  $
1,351
    $
1,143
    $
2,664
    $
2,133
 
State and local
   
344
     
319
     
697
     
615
 
Current tax expense
   
1,695
     
1,462
     
3,361
     
2,748
 
Deferred tax expense (benefit):
                               
Federal
   
(20
)    
(38
)    
24
     
(54
)
State and local
   
(6
)    
195
     
(5
)    
272
 
Deferred tax expense (benefit):
   
(26
)    
157
     
19
     
218
 
Income tax provision
  $
1,669
    $
1,619
    $
3,380
    $
2,966
 
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]
   
October 31,
   
April 30,
 
($ in thousands)
 
2020
   
2020
 
Federal tax liability (benefit):
               
Deferred gain on deconsolidation of EAM
  $
10,669
    $
10,669
 
Deferred non-cash post-employment compensation
   
(372
)    
(372
)
Depreciation and amortization
   
109
     
108
 
Unrealized gain on securities held for sale
   
292
     
299
 
Right of Use Asset
   
(190
)    
(182
)
Deferred charges
   
(165
)    
(166
)
Other
   
(465
)    
(207
)
Total federal tax liability
   
9,878
     
10,149
 
                 
State and local tax liabilities (benefits):
               
Deferred gain on deconsolidation of EAM
   
2,549
     
2,564
 
Deferred non-cash post-employment compensation
   
(89
)    
(88
)
Depreciation and amortization
   
26
     
44
 
Unrealized gain on securities held for sale
   
70
     
72
 
Other
   
170
     
110
 
Total state and local tax liabilities
   
2,726
     
2,702
 
Deferred tax liability, long-term
  $
12,604
    $
12,851
 
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]
   
Six Months Ended October 31,
 
   
2020
   
2019
 
U.S. statutory federal tax rate
   
21.00
%    
21.00
%
Increase (decrease) in tax rate from:
               
State and local income taxes, net of federal income tax benefit
   
4.22
%    
6.45
%
Effect of dividends received deductions
   
(0.28
)%    
(0.20
)%
Other, net
   
(0.01
)%    
0.04
%
Effective income tax rate
   
24.93
%    
27.29
%