Condensed Consolidated Statements Of Income (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Jul. 31, 2013	Jul. 31, 2012
Condensed Consolidated Statements Of Income [Abstract]
Net sales	$ 178,095	$ 148,252
Cost of sales and distribution	144,380	126,209
Gross Profit	33,715	22,043
Selling and marketing expenses	14,484	14,520
General and administrative expenses	8,401	5,639
Restructuring charges, net	82	777
Insurance proceeds	(94)	0
Operating Income	10,842	1,107
Interest expense	186	151
Other income	(26)	(59)
Income Before Income Taxes	10,682	1,015
Income tax expense	4,027	454
Net Income	$ 6,655	$ 561
Weighted Average Shares Outstanding
Basic	14,949,406	14,415,608
Diluted	15,373,260	14,576,158
Net earnings per share
Basic	$ 0.45	$ 0.04
Diluted	$ 0.43	$ 0.04