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Note 14 - Quarterly Results (unaudited) (Tables)

12 Months Ended

Mar. 31, 2014

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information [Table Text Block]

2014		First Quarter				Second Quarter				Third Quarter				Fourth Quarter
Revenues		$	11,218			$	12,676			$	13,116			$	15,714
Gross profit			6,797				7,600				7,706				9,585
Net income			1,860				1,932				1,746				3,462
Net Income per share – basic		$	0.55			$	0.57			$	0.51			$	1.00
Net Income per share – diluted			0.52				0.54				0.48				0.95

2013		First Quarter				Second Quarter				Third Quarter				Fourth Quarter
Revenues		$	10,560			$	11,706			$	11,361			$	12,808
Gross profit			6,456				7,248				6,947				8,211
Net income			2,100				2,248				1,543				2,559
Net Income per share – basic		$	0.63			$	0.67			$	0.46			$	0.76
Net Income per share – diluted			0.59				0.64				0.44				0.71

2012		First Quarter				Second Quarter				Third Quarter				Fourth Quarter
Revenues		$	9,297			$	9,702			$	9,649			$	10,968
Gross profit			5,388				5,774				5,885				6,464
Net income			1,679				2,054				1,987				2,199
Net Income per share – basic		$	0.51			$	0.63			$	0.60			$	0.67
Net Income per share – diluted			0.49				0.59				0.57				0.64