Quarterly report pursuant to Section 13 or 15(d)

Inventories, Net - Components of Inventories (Detail)

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Inventories, Net - Components of Inventories (Detail) - USD ($)
Sep. 30, 2021
Dec. 31, 2020
Inventories, Net    
Purchased Parts and Components $ 8,785,171 $ 5,252,709
Work in Process 203,103 1,381,677
Finished Goods 2,180,435 3,352,057
Less: Reserve for Obsolescence (1,288,372) (3,885,619)
Inventories, Net $ 9,880,337 $ 6,100,824