Note 2 - Correction of Immaterial Errors (Tables)

3 Months Ended

Jul. 31, 2014

Schedule of Error Corrections and Prior Period Adjustments [Table Text Block]

	Period Ended
	July 31, 2014				July 31, 2013
	As reported		As revised		As reported		As revised
Cost of goods sold	$	1,917,010		1,920,272	$	1,769,239		1,772,328
Interest, net		10,257		10,506		9,456		9,576
Federal and state income taxes		31,062		29,744		33,869		32,575
Net income		52,290		50,097		55,710		53,795
Net income per
Basic	$	1.35		1.30	$	1.45		1.40
Diluted	$	1.34		1.28	$	1.43		1.39

	Period Ended
	July 31, 2014				April 30 ,2014
	As reported		As revised		As reported		As revised
Deferred income T axes (asset)	$	12,225	$	21,192	$	11,878	$	23,292
Accrued expenses		119,887		151,344		111,583		139,529
Income taxes payable		19,900		16,123		--------		--------
Deferred income Taxes (liability)		320,136		319,959		317,953		318,023
Other long term liabilities		19,033		19,291		22,500		22,500
Retained earnings		730,552		711,758		685,988		669,386

	Period Ended
	July 31, 2014				July 31, 2013
	As reported		As revised		As reported		As revised
Net income	$	52,290	$	50,097	$	55,710	$	53,795
Deferred income taxes		1,836		4,037		3,122		1,828
Accrued expenses		7,458		10,969		20,005		23,214
Income taxes		29,301		25,782		30,207		30,207

- Definition

Tabular disclosure of prior period adjustments to previously issued financial statements including (1) the effect of the correction on each financial statement line item and any per-share amounts affected for each prior period presented (2) the cumulative effect of the change on retained earnings or other appropriate components of equity or net assets in the statement of financial position, as of the beginning of the earliest period presented, and (3) the effect of the prior period adjustments (both gross and net of applicable income tax) on the net income of each prior period presented in the entity's annual report for the year in which the adjustments are made.

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