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4. Royalties and Fees (Details Narrative) (USD $)
12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Number of Franchisee 2,215us-gaap_NumberOfStores 2,029us-gaap_NumberOfStores  
Outlets opened 242NROM_NumberOfStoresOpened    
Outlets closed 56NROM_NumberOfStoresClosed    
InitialFranchiseeFees [Member]      
Royalties and Fees $ 313,000us-gaap_ProceedsFromRoyaltiesReceived
/ us-gaap_StatementBusinessSegmentsAxis
= NROM_InitialFranchiseeFeesMember
$ 788,000us-gaap_ProceedsFromRoyaltiesReceived
/ us-gaap_StatementBusinessSegmentsAxis
= NROM_InitialFranchiseeFeesMember
$ 294,000us-gaap_ProceedsFromRoyaltiesReceived
/ us-gaap_StatementBusinessSegmentsAxis
= NROM_InitialFranchiseeFeesMember
EquipmentCommission [Member]      
Royalties and Fees $ 80,000us-gaap_ProceedsFromRoyaltiesReceived
/ us-gaap_StatementBusinessSegmentsAxis
= NROM_EquipmentCommissionMember
$ 95,000us-gaap_ProceedsFromRoyaltiesReceived
/ us-gaap_StatementBusinessSegmentsAxis
= NROM_EquipmentCommissionMember
$ 81,000us-gaap_ProceedsFromRoyaltiesReceived
/ us-gaap_StatementBusinessSegmentsAxis
= NROM_EquipmentCommissionMember