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Earnings per share (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Earnings per share [Abstract]    
Net income (loss) $ 19 $ (1,036)
Shares [Abstract]    
Basic: Weighted average common shares outstanding (in shares) 10,043,000 9,972,000
Add: Dilutive effect of outstanding options and restricted stock units as determined by the treasury stock method (in shares) 11,000 0
Diluted: Weighted average common and common equivalent shares outstanding (in shares) 10,054,000 9,972,000
Net income (loss) per common share [Abstract]    
Basic (in dollars per share) $ 0 $ (0.1)
Diluted (in dollars per share) $ 0 $ (0.1)
Option Awards [Member]    
Earnings per share [Abstract]    
Anti-dilutive securities excluded from computation of earnings per dilutive share (in shares) 1,300 1,500
Restricted Stock Awards [Member]    
Earnings per share [Abstract]    
Anti-dilutive securities excluded from computation of earnings per dilutive share (in shares) 100 200
Stock Awards [Member]    
Earnings per share [Abstract]    
Anti-dilutive securities excluded from computation of earnings per dilutive share (in shares) 0 100