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Taxes (Details 1) - USD ($)
Jun. 30, 2023
Dec. 31, 2022
Deferred tax assets:    
Allowance for doubtful account $ 735,633 $ 789,151
Net operating loss carryforward 3,280,567 3,098,352
Long-lived assets impairment 657,146 696,256
Deferred tax assets 4,673,346 4,583,759
Deferred tax liabilities:    
Recognition of intangible assets arising from business combinations (17,444)
Capitalized development costs (502,734) (544,982)
Change in valuation allowance (4,170,612) (4,021,333)
Deferred tax assets(liabilities), net