Variable Interest Entity - Additional Information (Details) - USD ($)		3 Months Ended	12 Months Ended
	Apr. 29, 2021	May 31, 2022	Feb. 28, 2019	Feb. 28, 2022
Variable Interest Entity [Line Items]
Notes, loans and financing receivable, net, noncurrent		1.50
Long-term debt, net of debt issuance costs		$ 14,858,000		$ 9,786,000
Distribution agreement liability amount		3,692,000
GalvanEyes [Member]
Variable Interest Entity [Line Items]
Quarterly installment payment due amount received under distribution agreement		$ 1,241,000
GalvanEyes [Member] | Put Arrangement [Member]
Variable Interest Entity [Line Items]
Equity interest percentage based on occurrence of certain events	20.00%	20.00%
Arrangement after initial period Term	2 years
EyeLock [Member] | Exclusive Distribution Agreement [Member]
Variable Interest Entity [Line Items]
Distribution agreement term	3 years
EyeLock [Member] | Call Arrangement [Member]
Variable Interest Entity [Line Items]
Equity interest percentage based on occurrence of certain events	20.00%
EyeLock [Member] | GalvanEyes [Member] | Exclusive Distribution Agreement [Member]
Variable Interest Entity [Line Items]
Annual fee receivable under distribution agreement subject to certain closing conditions	$ 10,000,000
Annual fee receivable under distribution agreement term	2 years
EyeLock [Member] | GalvanEyes [Member] | Maximum [Member] | Exclusive Distribution Agreement [Member]
Variable Interest Entity [Line Items]
Quarterly fee receivable under distribution agreement subject to certain closing conditions	$ 5,000,000
Variable Interest Entity, Primary Beneficiary [Member]
Variable Interest Entity [Line Items]
Debt instrument, interest rate during period		2.50%	10.00%
Line of credit facility, maximum borrowing capacity		$ 68,200,000
Long-term debt, net of debt issuance costs		$ 66,613,000