Quarterly report pursuant to Section 13 or 15(d)

Inventories (Schedule of Inventories) (Details)

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Inventories (Schedule of Inventories) (Details) - USD ($)
Jun. 30, 2021
Dec. 31, 2020
Inventories [Abstract]    
Finished goods $ 7,217,000 $ 7,871,000
Raw and processed materials 715,000 826,000
Inventories $ 7,931,875 $ 8,696,880