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Accumulated Other Comprehensive Income
9 Months Ended
Apr. 30, 2019
Accumulated Other Comprehensive Income [Abstract]  
Accumulated Other Comprehensive Income
11. Accumulated Other Comprehensive Income:
 
The only component of accumulated other comprehensive income is unrealized gain (loss) on marketable securities.
 
           A summary of the changes in accumulated other comprehensive income for the three and nine months ended April 30, 2019 and 2018 is as follows:

Three Months Ended Nine Months Ended
April 30 April 30
2019 2018 2019 2018
      (Unaudited)       (Unaudited)       (Unaudited)       (Unaudited)
Beginning balance, net of tax effect $      $      545,831 $      487,136 $      368,476
 
Other comprehensive income, net of tax effect:
Unrealized gain on marketable securities (144,250 ) 101,932
Tax effect 27,037 (43,963 )
Unrealized gain on marketable securities, net of tax effect (117,213 ) 57,969
                             
Unrealized loss on marketable securities reclassified to retained earnings (25,400 ) (800,136 ) (23,420 )
Tax effect 7,770 313,000 7,963
(17,630 ) (487,136 ) (15,457 )
 
Ending balance, net of tax effect $ $ 410,988 $ $ 410,988

           A summary of the line items in the Condensed Consolidated Statements of Income and Retained Earnings affected by the amounts reclassified from accumulated other comprehensive income is as follows:
 
                     Details about accumulated other comprehensive income components       Affected line item in the statement where net income is presented
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Other comprehensive income reclassified tax effect Investment income
Income taxes provided