Segment Reporting - Schedule of Segment Reporting Information by Segments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 31, 2019	Aug. 31, 2018	Aug. 31, 2019	Aug. 31, 2018
Segment Reporting Information [Line Items]
Net sales	$ 90,246	$ 108,867	$ 183,700	$ 209,722
Equity in income of equity investee	1,265	1,637	2,705	3,451
Interest expense and bank charges	887	1,117	1,884	2,217
Depreciation and amortization	3,295	2,963	6,587	5,925
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	(6,049)	(14,164)	(11,066)	(17,829)
Operating Segments [Member] | Automotive Electronics [Member]
Segment Reporting Information [Line Items]
Net sales	26,845	40,006	56,487	79,652
Equity in income of equity investee	1,265	1,637	2,705	3,451
Interest expense and bank charges	118	239	217	484
Depreciation and amortization	193	224	380	463
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	316	1,010	777	5,524
Operating Segments [Member] | Consumer Electronics [Member]
Segment Reporting Information [Line Items]
Net sales	63,034	68,328	126,687	129,232
Equity in income of equity investee	0	0	0	0
Interest expense and bank charges	2,469	2,722	4,867	5,398
Depreciation and amortization	1,122	1,157	2,263	2,314
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	(1,067)	(10,432)	(607)	(12,131)
Operating Segments [Member] | Biometrics [Member]
Segment Reporting Information [Line Items]
Net sales	254	184	260	412
Equity in income of equity investee	0	0	0	0
Interest expense and bank charges	313	982	615	1,887
Depreciation and amortization	784	792	1,569	1,584
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	(3,042)	(4,335)	(6,022)	(8,458)
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Net sales	113	349	266	426
Equity in income of equity investee	0	0	0	0
Interest expense and bank charges	(2,013)	(2,826)	(3,815)	(5,552)
Depreciation and amortization	1,196	790	2,375	1,564
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest	$ (2,256)	$ (407)	$ (5,214)	$ (2,764)