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Inventories (Details) - USD ($)
Dec. 31, 2024
Jun. 30, 2024
Inventories    
Raw materials $ 2,653,677 $ 3,112,428
Work in process 2,482,370 2,333,240
Finished goods 2,498,260 2,330,287
Allowance for obsolescence (1,205,868) (1,224,896)
Inventories, net $ 6,428,439 $ 6,551,059