XML 46 R1.htm IDEA: XBRL DOCUMENT v3.24.1
Document And Entity Information - USD ($)
 12 Months Ended
Dec. 31, 2023
Mar. 15, 2024
Document Information [Line Items]    
Entity Central Index Key 0001004989  
Entity Registrant Name SPAR GROUP, Inc.  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Document Fiscal Period Focus FY  
Document Fiscal Year Focus 2023  
Document Type 10-K  
Document Annual Report true  
Document Period End Date Dec. 31, 2023  
Document Transition Report false  
Entity File Number 0-27408  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 33-0684451  
Entity Address, Address Line One 1910 Opdyke Court  
Entity Address, City or Town Auburn Hills  
Entity Address, State or Province MI  
Entity Address, Postal Zip Code 48326  
City Area Code 248  
Local Phone Number 364-7727  
Title of 12(b) Security Common Stock, par value $.01 per share  
Trading Symbol SGRP  
Security Exchange Name NASDAQ  
Entity Well-known Seasoned Issuer No  
Entity Voluntary Filers No  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company false  
ICFR Auditor Attestation Flag false  
Document Financial Statement Error Correction [Flag] false  
Entity Shell Company false  
Entity Public Float $ 7,145,820  
Entity Common Stock, Shares Outstanding   24,215,959
Auditor Firm ID 243  
Auditor Name BDO USA, P.C.  
Auditor Location Troy, Michigan