v3.10.0.1
Document and Entity Information - shares
3 Months Ended
Jun. 30, 2018
Aug. 07, 2018
Document And Entity Information    
Entity Registrant Name Castle Brands Inc  
Entity Central Index Key 0001311538  
Document Type 10-Q  
Document Period End Date Jun. 30, 2018  
Amendment Flag false  
Current Fiscal Year End Date --03-31  
Entity Filer Category Accelerated Filer  
Entity Common Stock, Shares Outstanding   168,475,801
Trading Symbol ROX  
Document Fiscal Period Focus Q1  
Document Fiscal Year Focus 2019