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Inventories (Details) - USD ($) $ in Thousands	Apr. 30, 2017	Apr. 30, 2016
Inventory, Net [Abstract]
Finished Goods	$ 38,329	$ 45,170
Work-in-Process	7,078	7,592
Paper and Other Materials	650	4,867
Gross Inventory	46,057	57,629
Inventory Value of Estimated Sales Returns	4,727	4,924
LIFO Reserve	(2,932)	(4,774)
Total Inventories	47,852	57,779
Inventory obsolescence reserve	$ 21,100	$ 22,000

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Amount of inventory reserves for estimated sales returns.

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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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-Publisher FASB
-Name Accounting Standards Codification
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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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