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Inventories (Details) - USD ($)
Dec. 31, 2017
Jun. 30, 2017
Inventory Disclosure [Abstract]    
Raw materials $ 2,452,337 $ 2,282,880
Work in process 1,996,277 1,654,653
Finished goods 2,189,238 1,904,497
Reserve for obsolescence (823,494) (767,454)
Inventories, net $ 5,814,358 $ 5,074,576