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Note N - Quarterly Results of Operations (Unaudited) (Tables)

12 Months Ended

Apr. 30, 2016

Notes Tables

Quarterly Financial Information [Table Text Block]

		Year Ended April 30, 2016
		First				Second				Third				Fourth
		Quarter				Quarter				Quarter				Quarter				Total
Revenues		$	142,690			$	133,004			$	137,463			$	154,749			$	567,906
Gross profit			52,508				46,074				49,089				53,960				201,631
Net income			4,616				(485	)			4,102				3,363				11,596
Net income attributable to common stockholders			4,606				(495	)			4,092				3,353				11,556
Earnings per share:
Basic			0.54				(0.06	)			0.49				0.41				1.38
Diluted			0.52				(0.06	)			0.47				0.40				1.33

		Year Ended April 30, 2015
		First				Second				Third				Fourth
		Quarter				Quarter				Quarter				Quarter				Total
Revenues		$	127,376			$	133,834			$	131,500			$	137,611			$	530,321
Gross profit			47,988				51,279				49,734				51,122				200,123
Net income			7,260				7,519				7,461				7,250				29,490
Net income attributable to common stockholders			7,250				7,509				7,451				7,240				29,450
Earnings per share:
Basic			0.83				0.87				0.87				0.85				3.42
Diluted			0.79				0.83				0.82				0.81				3.25