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Inventories

9 Months Ended

Jan. 31, 2013

Inventories are stated at the lower of cost or the current estimated market values. Cost is determined using the first-in, first-out method.

Inventories consisted of the following:

	January 31,		April 30,
	2013		2012
(Amounts in thousands)
Raw materials and subassemblies	$	1,081	$	1,775
Work-in-process		3		63
Finished goods		486		821
	$	1,570	$	2,659

- Definition

The entire disclosure for inventory. This may include, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the major classes of inventory, and the nature of the cost elements included in inventory. If inventory is stated above cost, accrued net losses on firm purchase commitments for inventory and losses resulting from valuing inventory at the lower-of-cost-or-market may also be included. For LIFO inventory, may disclose the amount and basis for determining the excess of replacement or current cost over stated LIFO value and the effects of a LIFO quantities liquidation that impacts net income.

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