XML 79 R66.htm IDEA: XBRL DOCUMENT v3.22.1
Earnings per share (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 12 Months Ended
Dec. 31, 2021
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Dec. 31, 2020
Sep. 30, 2020
Jun. 30, 2020
Mar. 31, 2020
Dec. 31, 2021
Dec. 31, 2020
Earnings per share [Abstract]                    
Net loss $ (735) $ 910 $ (2,114) $ (2,206) $ (1,918) $ (867) $ (1,853) $ (992) $ (4,145) $ (5,630)
Shares [Abstract]                    
Basic: Weighted average common shares outstanding (in shares)                 9,298,000 7,827,000
Add: Dilutive effect of outstanding equity awards as determined by the treasury stock method (in shares)                 0 0
Diluted: Weighted average common and common equivalent shares outstanding (in shares)                 9,298,000 7,827,000
Net loss per common share [Abstract]                    
Basic (in dollars per share) $ (0.07) $ 0.10 $ (0.24) $ (0.25) $ (0.22) $ (0.11) $ (0.25) $ (0.13) $ (0.45) $ (0.72)
Diluted (in dollars per share) $ (0.07) $ 0.09 $ (0.24) $ (0.25) $ (0.22) $ (0.11) $ (0.25) $ (0.13) $ (0.45) $ (0.72)
Stock Awards [Member]                    
Earnings per share [Abstract]                    
Anti-dilutive securities excluded from computation of earnings per dilutive share (in shares)                 391,000 1,284,000