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Note 16 - Quarterly Results (Unaudited) (Tables)

12 Months Ended

Mar. 31, 2018

Notes Tables

Quarterly Financial Information [Table Text Block]

		First				Second				Third				Fourth
201 8		Quarter				Quarter				Quarter				Quarter
Revenues		$	22,673			$	22,954			$	23,671			$	26,881
Gross profit			12,671				13,233				12,681				16,034
Net income (loss)			1,517				2,353				(11,086	)			4,254
Net income (loss) per share – basic		$	0.41			$	0.63			$	(2.93	)		$	1.12
Net income (loss) per share – diluted			0.39				0.60				(2.93	)			1.08

		First				Second				Third				Fourth
201 7		Quarter				Quarter				Quarter				Quarter
Revenues		$	21,114			$	24,409			$	23,843			$	24,299
Gross profit			12,014				13,724				13,537				13,964
Net income			1,930				2,358				3,252				3,643
Net income per share – basic		$	0.53			$	0.64			$	0.88			$	0.98
Net income per share – diluted			0.51				0.62				0.84				0.94

		First				Second				Third				Fourth
201 6		Quarter				Quarter				Quarter				Quarter
Revenues		$	18,158			$	21,776			$	19,913			$	24,812
Gross profit			11,141				13,067				12,209				14,996
Net income			2,755				1,826				2,597				3,991
Net income per share – basic		$	0.77			$	0.51			$	0.72			$	1.10
Net income per share – diluted			0.74				0.48				0.69				1.06