NOTE F - INVENTORIES (Details) - Schedule of Inventory, Current - USD ($) $ in Thousands	Jul. 31, 2018	Apr. 30, 2018
Schedule of Inventory, Current [Abstract]
Raw Materials and Component Parts	$ 15,108	$ 16,206
Work in Progress	8,540	8,216
Finished Goods	2,693	1,764
	$ 26,341	$ 26,186

No definition available.

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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 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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