Financial and Product Information About Foreign and Domestic Operations Segment Data (Details) - USD ($)	3 Months Ended								12 Months Ended
	Feb. 28, 2017	Nov. 30, 2016	Aug. 31, 2016	May 31, 2016	Feb. 29, 2016	Nov. 30, 2015	Aug. 31, 2015	May 31, 2015	Feb. 28, 2017	Feb. 29, 2016	Feb. 28, 2015
Segment Reporting Information [Line Items]
Business Combination, Bargain Purchase, Gain Recognized, Amount									$ 0	$ 4,679,000	$ 0
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)											0
Foreign Currency Transaction Gain (Loss), before Tax									(509,000)	108,000	(6,504,000)
Revenue, Net	$ 167,387,000	$ 198,937,000	$ 159,262,000	$ 155,456,000	$ 169,683,000	$ 192,506,000	$ 154,174,000	$ 164,383,000	681,042,000	680,746,000	757,498,000
Income (Loss) from Equity Method Investments									6,797,000	6,538,000	5,866,000
Interest and Debt Expense									7,488,000	8,075,000	6,851,000
Depreciation and amortization									18,294,000	15,838,000	15,565,000
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest									(1,443,000)	(7,798,000)	696,000
Impairment of Long-Lived Assets Held-for-use									0	0	(9,304,000)
Asset Impairment Charges									0	9,070,000	9,304,000
Goodwill, Impairment Loss									$ 0	$ 0	$ 0
Concentration Risk, Percentage									10.00%	10.00%	10.00%
Consumer Accessories [Member]
Segment Reporting Information [Line Items]
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)										$ 2,860,000
Revenue, Net									$ 176,216,000	187,272,000	$ 194,104,000
Income (Loss) from Equity Method Investments									0	0	0
Interest and Debt Expense									4,716,000	5,766,000	6,431,000
Depreciation and amortization									4,702,000	2,904,000	1,192,000
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest									(20,300,000)	(17,044,000)	(3,840,000)
Automotive [Member]
Segment Reporting Information [Line Items]
Revenue, Net									337,241,000	351,665,000	396,422,000
Income (Loss) from Equity Method Investments									6,797,000	6,538,000	5,866,000
Interest and Debt Expense									3,492,000	5,811,000	6,310,000
Depreciation and amortization									7,230,000	7,327,000	8,646,000
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest									21,358,000	17,857,000	2,196,000
Intersegment Elimination [Member]
Segment Reporting Information [Line Items]
Revenue, Net									796,000	1,301,000	1,160,000
Income (Loss) from Equity Method Investments									0	0	0
Interest and Debt Expense									(6,015,000)	(12,481,000)	(14,969,000)
Depreciation and amortization									2,674,000	2,130,000	2,076,000
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest									(10,817,000)	334,000	(639,000)
Premium Audio [Member]
Segment Reporting Information [Line Items]
Impairment of Intangible Assets, Indefinite-lived (Excluding Goodwill)										6,210,000
Revenue, Net									166,789,000	140,508,000	165,812,000
Income (Loss) from Equity Method Investments									0	0	0
Interest and Debt Expense									5,295,000	8,979,000	9,079,000
Depreciation and amortization									3,688,000	3,477,000	3,651,000
Income (Loss) from Continuing Operations before Income Taxes, Extraordinary Items, Noncontrolling Interest									8,316,000	(8,945,000)	2,979,000
Goodwill, Impairment Loss									0	0	0
VENEZUELA
Segment Reporting Information [Line Items]
Foreign Currency Transaction Gain (Loss), before Tax									(8,000)	(2,000)	(7,104,000)
Bonds [Member] | VENEZUELA
Segment Reporting Information [Line Items]
Foreign Currency Transaction Gain (Loss), before Tax									$ 0	$ (23,000)	$ (7,396,000)