v3.26.3
SUBSEQUENT EVENTS (Details Narrative)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Aug. 14, 2026
USD ($)
$ / shares
shares
Feb. 27, 2026
USD ($)
Integer
Mar. 31, 2026
USD ($)
Dec. 31, 2025
USD ($)
Jun. 30, 2026
USD ($)
Dec. 31, 2024
USD ($)
Subsequent Event [Line Items]            
Property carrying amount       $ 18,610 $ 16,598 $ 242
Stock issued during the period, value          
Subsequent Event [Member]            
Subsequent Event [Line Items]            
Stock issued during the period, value $ 19,200          
Stock issued during the period, other shares | shares 1.92          
Credit facility The financing is expected to be provided by a drawdown on Harte Hanks’ existing $25 million asset-based revolving credit facility with Texas Capital Bank (with the drawdown not to exceed $15 million), under which $21.3 million was available as of June 30, 2026 after giving effect to outstanding letters of credit          
Subsequent Event [Member] | HH Merger [Member]            
Subsequent Event [Line Items]            
Share price | $ / shares $ 5.00          
Stock issued during the period, shares | shares 0.5          
Stock issued during the period, value $ 19,200          
ADT Wyoming Property [Member] | Land and Building [Member]            
Subsequent Event [Line Items]            
Property carrying amount       $ 1,500    
ADT Wyoming Property [Member] | Subsequent Event [Member]            
Subsequent Event [Line Items]            
Operating lease, term of contract   20 years        
Operating lease, number of extension options | Integer   4        
Operating lease, extension term   5 years        
Initial monthly base rent   $ 12        
Sale and leaseback transaction, gain     $ 100      
Custom Capital Strategies Inc [Member] | ADT Wyoming Property [Member] | Subsequent Event [Member]            
Subsequent Event [Line Items]            
Proceeds from sale property   $ 1,600