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10. Debt (Details Narrative) (SiliconValleyBankMember, USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
SiliconValleyBankMember
 
Credit facility with maximum borrowing $ 5,000us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
/ us-gaap_CreditFacilityAxis
= RWC_SiliconValleyBankMember