SeaChange International, Inc. Quarterly report pursuant to Section 13 or 15(d)

Quarterly report pursuant to Section 13 or 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Significant Accounting Policies - Additional Information (Detail)

v3.23.1

Significant Accounting Policies - Additional Information (Detail)	3 Months Ended		12 Months Ended
	Apr. 30, 2023 USD ($) Customer	Apr. 30, 2022 USD ($) Customer	Jan. 31, 2023 USD ($)	Jan. 31, 2022 USD ($)	Mar. 13, 2023 USD ($)	Mar. 10, 2023 USD ($)
Significant Accounting Policies [Line Items]
Impairment costs			$ 0	$ 0
Deferred capitalized commission costs	$ 144,000		162,000
Amortization expense	18,000	$ 37,000
Contract assets	0		0
Retained Earnings (Accumulated Deficit)	$ (234,749,000)		$ (233,817,000)
Customer Concentration Risk [Member] \| Total Revenue [Member] \| Customer One [Member]
Significant Accounting Policies [Line Items]
Concentration risk percentage	14.00%	26.00%
Number of customers accounted \| Customer	1	1
Credit Concentration Risk [Member] \| Accounts Receivable [Member]
Significant Accounting Policies [Line Items]
Number of customers accounted \| Customer	1	1
Credit Concentration Risk [Member] \| Accounts Receivable [Member] \| Customer One [Member]
Significant Accounting Policies [Line Items]
Concentration risk percentage	22.00%		21.00%
Silicon Valley Bank [Member]
Significant Accounting Policies [Line Items]
Deposit in bank						$ 5,000,000.0
Bank deposit transferred to other financial institutions					$ 5,000,000.0
Maximum [Member]
Significant Accounting Policies [Line Items]
Contractual customer payment terms for goods or service.	1 year
Cumulative Effect, Period of Adoption, Adjustment [Member] \| Accounting Standards Update 2016-13 [Member]
Significant Accounting Policies [Line Items]
Retained Earnings (Accumulated Deficit)			$ 200,000

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