Note 4 - Inventory - Inventory (Details) - USD ($)	Dec. 31, 2021	Dec. 31, 2020
Raw materials and component parts	$ 3,904,865	$ 3,897,133
Work-in-process	3,949,647	3,449,252
Finished products	9,183,532	3,999,920
Total Inventory	17,038,044	11,346,305
Less: Inventory reserves	452,607	315,345
Net Inventory	$ 16,585,437	$ 11,030,960

Amount before valuation and LIFO reserves of completed merchandise or goods expected to be sold within one year or operating cycle, if longer.

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