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Note 14 - Segments and Geographic Information (Details) - Revenue from Unaffiliated Customers by Geographic Area (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Note 14 - Segments and Geographic Information (Details) - Revenue from Unaffiliated Customers by Geographic Area [Line Items]    
Revenues $ 90us-gaap_SalesRevenueNet $ 152us-gaap_SalesRevenueNet
HONG KONG    
Note 14 - Segments and Geographic Information (Details) - Revenue from Unaffiliated Customers by Geographic Area [Line Items]    
Revenues 43us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_HK		  
JAPAN    
Note 14 - Segments and Geographic Information (Details) - Revenue from Unaffiliated Customers by Geographic Area [Line Items]    
Revenues 40us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_JP		 152us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_JP
CANADA    
Note 14 - Segments and Geographic Information (Details) - Revenue from Unaffiliated Customers by Geographic Area [Line Items]    
Revenues 4us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= country_CA		  
Other [Member]    
Note 14 - Segments and Geographic Information (Details) - Revenue from Unaffiliated Customers by Geographic Area [Line Items]    
Revenues $ 3us-gaap_SalesRevenueNet
/ us-gaap_StatementGeographicalAxis
= vivmf_OtherAreaMember