Background, Description of Business, and Basis of Presentation - Additional Information (Details)	3 Months Ended		4 Months Ended	9 Months Ended		12 Months Ended
	Jan. 31, 2022 USD ($) Customer	Jan. 31, 2021 USD ($) Customer	Jan. 31, 2021 USD ($)	Jan. 31, 2022 USD ($) Customer	Jan. 31, 2021 USD ($) Customer	Apr. 30, 2021 USD ($)
Background Description Of Business And Basis Of Presentation [Line Items]
Corporate expenses						$ 2,700,000
Distribution expenses						1,900,000
Related party sales			$ 2,400,000
Accounts receivable	$ 45,346,000			$ 45,346,000		37,487,000
Impact on previously reported net income or comprehensive income						0
Net sales	$ 70,105,000	$ 82,649,000		$ 201,633,000	$ 212,214,000
Sales Revenue Net | Customer Concentration Risk
Background Description Of Business And Basis Of Presentation [Line Items]
Number of customer | Customer	1	1		1	1
Sales Revenue Net | Customer Concentration Risk | Customer One
Background Description Of Business And Basis Of Presentation [Line Items]
Net sales	$ 25,600,000	$ 23,500,000		$ 57,600,000	$ 61,800,000
Concentration risk, percentage	36.50%	28.40%		28.60%	29.10%
Sales Revenue Net | Customer Concentration Risk | Customer Two
Background Description Of Business And Basis Of Presentation [Line Items]
Net sales				$ 20,800,000
Concentration risk, percentage				10.30%
Accounts Receivable | Credit Concentration Risk
Background Description Of Business And Basis Of Presentation [Line Items]
Number of customer | Customer				2	2
Accounts Receivable | Credit Concentration Risk | Customer One
Background Description Of Business And Basis Of Presentation [Line Items]
Accounts receivable	$ 18,400,000	$ 17,600,000	17,600,000	$ 18,400,000	$ 17,600,000
Concentration risk, percentage				40.50%	31.40%
Accounts Receivable | Credit Concentration Risk | Customer Two
Background Description Of Business And Basis Of Presentation [Line Items]
Accounts receivable	$ 6,100,000	$ 6,300,000	$ 6,300,000	$ 6,100,000	$ 6,300,000
Concentration risk, percentage				13.40%	11.20%
Minimum
Background Description Of Business And Basis Of Presentation [Line Items]
Product shipment days				20 days
Maximum
Background Description Of Business And Basis Of Presentation [Line Items]
Product shipment days				90 days
Adjustment
Background Description Of Business And Basis Of Presentation [Line Items]
Other assets, current						4,800,000
Accounts receivable						(4,800,000)
Net Sales | Smith & Wesson Brands, Inc.
Background Description Of Business And Basis Of Presentation [Line Items]
Related party sales						$ 2,400,000