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Concentrations of Risk and Major Customers - Additional Information (Detail) (Customer Concentration Risk)
 12 Months Ended
Feb. 28, 2015
Feb. 28, 2014
Concentration Risk [Line Items]    
Number of customer 1vide_NumberOfMajorCustomer  
Sales Revenue, Goods, Net | Lockheed Martin
    
Concentration Risk [Line Items]    
Concentration risk, percentage of consolidated net sales 27.20%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueGoodsNetMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_MajorCustomersAxis
= vide_LockheedMartinCorpMember		  
Sales Revenue, Goods, Net | UNITED STATES
    
Concentration Risk [Line Items]    
Concentration risk, percentage of consolidated net sales 41.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueGoodsNetMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_StatementGeographicalAxis
= country_US		 28.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueGoodsNetMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_StatementGeographicalAxis
= country_US
Sales Revenue, Goods, Net | Non U S
    
Concentration Risk [Line Items]    
Concentration risk, percentage of consolidated net sales 15.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueGoodsNetMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_StatementGeographicalAxis
= vide_NonUSMember		 10.00%us-gaap_ConcentrationRiskPercentage1
/ us-gaap_ConcentrationRiskByBenchmarkAxis
= us-gaap_SalesRevenueGoodsNetMember
/ us-gaap_ConcentrationRiskByTypeAxis
= us-gaap_CustomerConcentrationRiskMember
/ us-gaap_StatementGeographicalAxis
= vide_NonUSMember