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Inventories (Details) - USD ($) $ in Thousands	Oct. 31, 2018	Apr. 30, 2018
Inventories [Abstract]
Finished goods	$ 32,388	$ 36,503
Work-in-process	2,473	2,139
Paper and other materials	441	550
Gross inventory	35,302	39,192
Inventory value of estimated sales returns	4,261	4,626
LIFO reserve	(4,479)	(4,329)
Total inventories	$ 35,084	$ 39,489

X

- Definition

Amount of inventory reserves for estimated sales returns.

+ References

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- Definition

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

+ References

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-Publisher FASB
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-SubTopic 10
-Section S99
-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.

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Amount by which inventory stated at last-in first-out (LIFO) is less than (in excess of) inventory stated at other inventory cost methods.

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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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