Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Additional Information (Detail)

v2.4.1.9
Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)
 12 Months Ended
Jan. 31, 2015
Jan. 31, 2014
Jan. 31, 2013
Significant Accounting Policies [Line Items]      
Allowance for doubtful accounts receivable $ 400,000us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent $ 327,000us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent  
Provision for obsolescence 100,000us-gaap_InventoryValuationReserves 100,000us-gaap_InventoryValuationReserves 300,000us-gaap_InventoryValuationReserves
Foreign currency transaction gain (loss), realized 2,300,000us-gaap_ForeignCurrencyTransactionGainLossRealized 400,000us-gaap_ForeignCurrencyTransactionGainLossRealized 23,000us-gaap_ForeignCurrencyTransactionGainLossRealized
Comprehensive loss (31,106,000)us-gaap_ComprehensiveIncomeNetOfTax (3,336,000)us-gaap_ComprehensiveIncomeNetOfTax (11,217,000)us-gaap_ComprehensiveIncomeNetOfTax
Minimum period warranty of product 1 year    
Advertising expense $ 100,000us-gaap_AdvertisingExpense $ 100,000us-gaap_AdvertisingExpense $ 200,000us-gaap_AdvertisingExpense
Accounts Receivable [Member]      
Significant Accounting Policies [Line Items]      
Number of customers accounted 2seac_NumberOfMajorCustomers
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember 		1seac_NumberOfMajorCustomers
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_AccountsReceivableMember 		 
Total Revenue [Member]      
Significant Accounting Policies [Line Items]      
Number of customers accounted 2seac_NumberOfMajorCustomers
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueNetMember 		3seac_NumberOfMajorCustomers
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueNetMember 		2seac_NumberOfMajorCustomers
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueNetMember
Minimum [Member]      
Significant Accounting Policies [Line Items]      
Support agreements 12 months    
Maximum [Member]      
Significant Accounting Policies [Line Items]      
Support agreements 36 months