Note 3 - Inventories - Summary of Inventory (Details) - USD ($)	Mar. 31, 2018	Mar. 31, 2017
Raw materials	$ 279,073	$ 395,054
Finished goods	33,001	31,353
	312,074	426,407
Current [Member]
Raw materials	168,640	338,443
Finished goods	32,383	31,353
	201,023	369,796
Long Term [Member
Raw materials	110,433	56,611
Finished goods	618
	$ 111,051	$ 56,611

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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-SubTopic 10
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-Paragraph 1
-Subparagraph (SX 210.5-02.6(a)(1))
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Gross amount, as of the balance sheet date, of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process.

+ References

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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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