Statement of Operations (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Aug. 31, 2012	Aug. 31, 2011	Aug. 31, 2012	Aug. 31, 2011
Net sales	$ 191,715	$ 158,337	$ 385,751	$ 323,662
Cost of sales	137,029	114,475	280,569	236,112
Gross profit	54,686	43,862	105,182	87,550
Operating expenses:
Selling	11,507	11,199	24,712	23,103
General and administrative	29,591	20,765	54,816	43,418
Engineering and technical support	6,693	4,007	14,104	7,818
Acquisition-related costs	55	239	1,651	1,583
Total operating expenses	47,846	36,210	95,283	75,922
Operating income (loss)	6,840	7,652	9,899	11,628
Other (expense) income:
Interest and bank charges	1,693	1,392	3,937	2,875
Equity in income of equity investees	1,193	890	2,550	2,019
Other, net	(343)	(1,227)	(9,999)	(746)
Total other (expense) income, net	(843)	(1,729)	(11,386)	(1,602)
Income (loss) before income taxes	5,997	5,923	(1,487)	10,026
Income tax expense (benefit)	2,277	2,484	(507)	4,101
Net income (loss)	3,720	3,439	(980)	5,925
Foreign currency translation adjustments	(568)	(616)	(5,190)	712
Derivatives designated for hedging	(196)	(21)	100	(725)
Reclassificaton adjustment of other-than-temporary impairment loss on available-for-sale investment into net income	0	877	0	1,177
Unrealized holding gain (loss) on available-for-sale investment securities arising during the period, net of tax	6	7	6	(3)
Other comprehensive income (loss), net of tax	(758)	247	(5,084)	1,161
Comprehensive (loss) income	$ 2,962	$ 3,686	$ (6,064)	$ 7,086
Net income per common share (basic)	$ 0.16	$ 0.15	$ (0.04)	$ 0.26
Net income per common share (diluted)	$ 0.16	$ 0.15	$ (0.04)	$ 0.25
Weighted Average Number of Shares Outstanding, Basic	23,397,769	23,073,959	23,349,617	23,073,959
Weighted Average Number of Shares Outstanding, Diluted	23,599,929	23,254,296	23,349,617	23,268,241