Segment Reporting (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Nov. 30, 2013	Nov. 30, 2012	Nov. 30, 2013	Nov. 30, 2012
Segment Reporting Information [Line Items]
Revenue, Net	$ 245,814	$ 243,036	$ 622,604	$ 628,787
Income (Loss) from Equity Method Investments	1,520	1,180	4,772	3,730
Interest Expense and Bank Charges	1,830	2,286	5,609	6,223
Depreciation and amortization	4,040	4,024	12,000	12,173
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	21,833	19,460	32,690	17,973
Automotive [Member]
Segment Reporting Information [Line Items]
Revenue, Net	120,996	118,172	324,833	317,325
Income (Loss) from Equity Method Investments	1,520	1,180	4,772	3,730
Interest Expense and Bank Charges	1,718	2,155	5,568	5,466
Depreciation and amortization	2,137	2,167	6,330	6,201
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	16,135	7,282	27,087	2,512
Premium Audio [Member]
Segment Reporting Information [Line Items]
Revenue, Net	65,562	63,629	146,533	147,841
Income (Loss) from Equity Method Investments	0	0	0	0
Interest Expense and Bank Charges	2,050	1,891	5,753	5,768
Depreciation and amortization	978	919	2,726	2,756
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	5,688	8,414	8,294	12,570
Consumer Accessories [Member]
Segment Reporting Information [Line Items]
Revenue, Net	58,802	60,949	149,965	162,880
Income (Loss) from Equity Method Investments	0	0	0	0
Interest Expense and Bank Charges	2,511	2,467	7,508	7,212
Depreciation and amortization	543	604	1,716	2,036
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	875	3,269	(2,341)	1,691
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenue, Net	454	286	1,273	741
Income (Loss) from Equity Method Investments	0	0	0	0
Interest Expense and Bank Charges	(4,449)	(4,227)	(13,220)	(12,223)
Depreciation and amortization	382	334	1,228	1,180
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest	$ (865)	$ 495	$ (350)	$ 1,200