Note 4 - Inventory - Inventory (Details) - USD ($)	Sep. 30, 2017	Sep. 30, 2016
Raw materials and component parts	$ 2,659,171	$ 2,022,092
Work-in-process	370,506	438,447
Finished products	1,301,338	1,083,852
Total Inventory	4,331,015	3,544,391
Less: Inventory reserves	473,252	235,592
Net Inventory	$ 3,857,763	$ 3,308,799

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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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount before valuation and LIFO reserves of raw materials expected to be sold, or consumed within one year or operating cycle, if longer.

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Amount of valuation reserve for inventory.

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

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