Revenue from Contracts with Customers - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	May 31, 2022	May 31, 2021
Disaggregation Of Revenue [Line Items]
Net sales	$ 128,732	$ 137,060
Corporate, Non-Segment [Member]
Disaggregation Of Revenue [Line Items]
Net sales	107	85
Automotive [Member] | Operating Segments [Member]
Disaggregation Of Revenue [Line Items]
Net sales	39,585	42,657
Automotive [Member] | Operating Segments [Member] | OEM Products [Member]
Disaggregation Of Revenue [Line Items]
Net sales	16,724	14,914
Automotive [Member] | Operating Segments [Member] | Aftermarket Products [Member]
Disaggregation Of Revenue [Line Items]
Net sales	22,861	27,743
Consumer Electronics [Member] | Operating Segments [Member]
Disaggregation Of Revenue [Line Items]
Net sales	88,937	94,113
Consumer Electronics [Member] | Operating Segments [Member] | Premium Audio Products [Member]
Disaggregation Of Revenue [Line Items]
Net sales	69,944	71,593
Consumer Electronics [Member] | Operating Segments [Member] | Other Consumer Electronic Products [Member]
Disaggregation Of Revenue [Line Items]
Net sales	18,993	22,520
Biometrics [Member] | Operating Segments [Member]
Disaggregation Of Revenue [Line Items]
Net sales	103	205
Biometrics [Member] | Operating Segments [Member] | Biometric Products [Member]
Disaggregation Of Revenue [Line Items]
Net sales	$ 103	$ 205