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Financial and Product Information About Foreign and Domestic Operations - Schedule of Segment Data from Continuing Operations (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Feb. 29, 2020	Nov. 30, 2019	Aug. 31, 2019	May 31, 2019	Feb. 28, 2019	Nov. 30, 2018	Aug. 31, 2018	May 31, 2018	Feb. 29, 2020	Feb. 28, 2019	Feb. 28, 2018
Segment Reporting Information [Line Items]
Net sales	$ 101,077	$ 110,112	$ 90,246	$ 93,454	$ 107,457	$ 129,637	$ 108,867	$ 100,855	$ 394,889	$ 446,816	$ 507,092
Equity in income of equity investee									5,174	6,618	7,178
Interest expense and bank charges									3,569	4,449	6,009
Depreciation and amortization									13,278	12,344	12,174
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest									(40,940)	(58,963)	(24,104)
Operating Segments [Member] \| Automotive Electronics [Member]
Segment Reporting Information [Line Items]
Net sales									114,154	161,647	155,480
Equity in income of equity investee									5,174	6,618	7,178
Interest expense and bank charges									436	868	967
Depreciation and amortization									878	1,002	1,027
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest									(724)	13,842	13,922
Operating Segments [Member] \| Consumer Electronics [Member]
Segment Reporting Information [Line Items]
Net sales									279,675	283,144	350,526
Equity in income of equity investee									0	0	0
Interest expense and bank charges									10,076	10,852	12,223
Depreciation and amortization									4,390	4,419	4,989
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest									9,385	(29,348)	(3,872)
Operating Segments [Member] \| Biometrics [Member]
Segment Reporting Information [Line Items]
Net sales									461	1,098	636
Equity in income of equity investee									0	0	0
Interest expense and bank charges									1,279	4,013	2,869
Depreciation and amortization									3,136	3,158	3,166
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest									(39,241)	(18,928)	(18,832)
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Net sales									599	927	450
Equity in income of equity investee									0	0	0
Interest expense and bank charges									(8,222)	(11,284)	(10,050)
Depreciation and amortization									4,874	3,765	2,992
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest									$ (10,360)	$ (24,529)	$ (15,322)