Revenue Recognition - Additional Information (Detail) - USD ($)	3 Months Ended	12 Months Ended
	Jul. 31, 2021	Jan. 31, 2023	Jan. 31, 2022	Jan. 31, 2021	Dec. 31, 2022
Contract liabilities and extended warranties		$ 412,000	$ 262,000
Revenue recognized		248,000
Contract assets balance		1,300,000	1,300,000
Additional contract costs		100,000
Amortization of incremental direct costs		75,000	$ 60,000	$ 27,000
Deferred incremental direct contract costs reported in other current assets		$ 100,000
Capitalized contract costs additional amounts incurred amortization period		19 years
Capitalized contract cost net long term and short term		$ 1,400,000
Capitalized contract costs additional amounts incurred amortization period		6 years
Aerospace Customer [Member]
Contract with customer liability					$ 3,250,000
Revenue recognized		$ 1,100,000
Change in Accounting Method Accounted for as Change in Estimate [Member]
Capitalized contract costs additional amounts incurred amortization period	20 years