XML 14 R1.htm IDEA: XBRL DOCUMENT v3.8.0.1
Document and Entity Information - USD ($)
shares in Millions, $ in Millions
 12 Months Ended
Mar. 31, 2018
Jun. 22, 2018
Sep. 30, 2017
Document and Entity Information [Abstract]      
Entity Registrant Name NICHOLAS FINANCIAL INC    
Entity Central Index Key 0001000045    
Trading Symbol nick    
Entity Current Reporting Status Yes    
Entity Voluntary Filers No    
Current Fiscal Year End Date --03-31    
Entity Filer Category Smaller Reporting Company    
Entity Well-known Seasoned Issuer No    
Entity Common Stock Shares Outstanding   12.6  
Entity Public Float     $ 48.8
Document Type 10-K    
Document Period End Date Mar. 31, 2018    
Amendment Flag false    
Document Fiscal Year Focus 2018    
Document Fiscal Period Focus FY