| Cover | Jan. 03, 2022 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Jan. 3, 2022 |
| Entity File Number | 001-34951 |
| Entity Registrant Name | XTANT MEDICAL HOLDINGS, INC. |
| Entity Central Index Key | 0001453593 |
| Entity Tax Identification Number | 20-5313323 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 664 Cruiser Lane |
| Entity Address, City or Town | Belgrade |
| Entity Address, State or Province | MT |
| Entity Address, Postal Zip Code | 59714 |
| City Area Code | (406) |
| Local Phone Number | 388-0480 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common stock, par value $0.000001 per share |
| Trading Symbol | XTNT |
| Security Exchange Name | NYSEAMER |
| Entity Emerging Growth Company | false |
