XML 12 R1.htm IDEA: XBRL DOCUMENT v3.8.0.1
DOCUMENT AND ENTITY INFORMATION - shares
9 Months Ended
Sep. 30, 2017
Nov. 13, 2017
Document And Entity Information [Abstract]    
Entity Registrant Name GUARANTY BANCSHARES INC /TX/  
Entity Central Index Key 0001058867  
Document Type 10-Q  
Document Period End Date Sep. 30, 2017  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Entity Filer Category Non-accelerated Filer  
Document Fiscal Year Focus 2017  
Document Fiscal Period Focus Q3  
Entity Common Stock, Shares Outstanding   11,058,956