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)

v3.20.1

Significant Accounting Policies - Additional Information (Detail)	3 Months Ended		12 Months Ended
	Apr. 30, 2020 USD ($) Customer	Apr. 30, 2019 USD ($) Customer	Jan. 31, 2020 USD ($) Customer
Significant Accounting Policies [Line Items]
Accumulated goodwill impairment charges	$ 54,800,000
Impairment costs	0		$ 0
Deferred capitalized commission costs	893,000		$ 958,000
Amortization expense	$ 135,000	$ 38,000
Maximum [Member]
Significant Accounting Policies [Line Items]
Contractual customer payment terms for goods or service.	1 year
Customer Concentration Risk [Member] \| Total Revenue [Member]
Significant Accounting Policies [Line Items]
Number of customers accounted \| Customer	2	1
Customer Concentration Risk [Member] \| Total Revenue [Member] \| Customer One [Member]
Significant Accounting Policies [Line Items]
Concentration risk percentage	13.00%	17.00%
Customer Concentration Risk [Member] \| Total Revenue [Member] \| Customer Two [Member]
Significant Accounting Policies [Line Items]
Concentration risk percentage	15.00%
Credit Concentration Risk [Member] \| Accounts Receivable [Member]
Significant Accounting Policies [Line Items]
Number of customers accounted \| Customer	2		2
Credit Concentration Risk [Member] \| Accounts Receivable [Member] \| Customer One [Member]
Significant Accounting Policies [Line Items]
Concentration risk percentage	22.00%		16.00%
Credit Concentration Risk [Member] \| Accounts Receivable [Member] \| Customer Two [Member]
Significant Accounting Policies [Line Items]
Concentration risk percentage	13.00%		10.00%

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Amount of amortization expense for asset recognized from cost incurred to obtain or fulfill contract with customer.

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