v3.19.3
Document and Entity Information - shares
9 Months Ended
Sep. 30, 2019
Nov. 06, 2019
Schedule Of Warrants Activities Used In Derivative Liability [Table Text Block]    
Entity Registrant Name Xtant Medical Holdings, Inc.  
Entity Central Index Key 0001453593  
Document Type 10-Q  
Document Period End Date Sep. 30, 2019  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business Flag true  
Entity Emerging Growth Company false  
Entity Ex Transition Period false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   13,161,762
Document Fiscal Period Focus Q3  
Document Fiscal Year Focus 2019