Consolidated Statements of Operations and (Accumulated Deficit) Retained Earnings (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011	Dec. 31, 2010
Revenues Abstract
Net sales	$ 142,750	$ 128,696	$ 432,373	$ 380,095
Cost of products sold	104,147	99,345	318,897	291,488
Gross profit	38,603	29,351	113,476	88,607
Operating Expenses Abstract
Selling expenses	15,980	15,524	47,515	46,219
General and administrative expenses	11,605	10,275	33,956	29,855
Restructuring charges	(1,467)	150	(1,037)	1,947
Amortization of intangibles	485	452	1,515	1,315
Total operating expenses	26,603	26,401	81,949	79,336
Income (loss) from operations	12,000	2,950	31,527	9,271
Other Income & Expenses Abstract
Interest and debt expense	3,590	3,281	10,651	9,885
Investment income	275	317	824	1,020
Foreign currency exchange (loss) gain	97	(641)	(121)	(303)
Other income, net	1,399	294	1,880	933
(Loss) income from continuing operations before income tax expense (benefit)	10,181	(361)	23,459	1,036
Income Tax Expense Benefit Abstract
Income Tax Expense Benefit	1,666	39,406	5,898	39,790
Income (Loss) from continuing operations	8,515	(39,767)	17,561	(38,754)
Discontinued Operation Gain Loss On Disposal Of Discontinued Operation Net Of Tax & Other Abstract
Income from discontinued operations	0	128	409	261
ProfitLoss	8,515	(39,639)	17,970	(38,493)
Retained Earnings Accumulated Deficit Abstract
(Accumulated Deficit) retained earnings - beginning of period	8,383	36,024	(1,072)	34,878
Accumulated deficit (retained earnings) - end of period	$ 16,898	$ (3,615)	$ 16,898	$ (3,615)
Weighted Average Number Of Shares Outstanding Basic Abstract
Weighted Average Number Of Shares Outstanding Basic	19,313	19,082	19,256	19,050
Weighted Average Number Of Shares Outstanding Abstract
Weighted Average Number Of Diluted Shares Outstanding	19,488	19,082	19,526	19,050
Earnings Per Share Basic Abstract
Income Loss From Continuing Operations Per Basic Share	$ 0.44	$ (2.09)	$ 0.91	$ (2.03)
Income Loss From Discontinued Operations Net Of Tax Per Basic Share	$ 0	$ 0.01	$ 0.02	$ 0.01
Earnings Per Share Basic	$ 0.44	$ (2.08)	$ 0.93	$ (2.02)
Earnings Per Share Diluted Abstract
Income Loss From Continuing Operations Per Diluted Share	$ 0.44	$ (2.09)	$ 0.90	$ (2.03)
Income Loss From Discontinued Operations Net Of Tax Per Diluted Share	$ 0	$ 0.01	$ 0.02	$ 0.01
Earnings Per Share Diluted	$ 0.44	$ (2.08)	$ 0.92	$ (2.02)