Condensed Consolidated Income Statements (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Nov. 30, 2011	Nov. 30, 2010	Nov. 30, 2011	Nov. 30, 2010
Condensed Consolidated Income Statements [Abstract]
Net sales	$ 16,036	$ 13,121	$ 49,602	$ 44,528
Cost of goods sold	10,667	9,881	33,689	32,571
Gross profit	5,369	3,240	15,913	11,957
Operating expenses
Selling and delivery	1,413	1,081	3,994	3,184
General and administrative	2,040	1,714	6,370	5,066
Total operating expenses	3,453	2,795	10,364	8,250
Operating profit	1,916	445	5,549	3,707
Other income (expense)
Interest expense	(185)	(218)	(624)	(715)
Other, net	67	58	137	229
Total other income (expense)	(118)	(160)	(487)	(486)
Income from continuing operations before income taxes	1,798	285	5,062	3,221
Income tax expense	540	135	1,565	1,110
Net income from continuing operations	1,258	150	3,497	2,111
Loss from discontinued operations, net of income tax benefit of $287 and $308		(569)		(609)
Net income	$ 1,258	$ (419)	$ 3,497	$ 1,502
Net income per share:
From continuing operations-basic	$ 0.17	$ 0.02	$ 0.46	$ 0.26
From continuing operations-diluted	$ 0.17	$ 0.02	$ 0.45	$ 0.24
From discontinued operations-basic	$ 0	$ (0.07)	$ 0	$ (0.08)
From discontinued operations-diluted	$ 0	$ (0.07)	$ 0	$ (0.07)
Basic weighted average shares outstanding	7,628	8,365	7,619	8,365
Diluted weighted average shares outstanding	7,683	8,700	7,855	8,693