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Summary of Significant Accounting Policies - Dilutive Effect (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 3 Months Ended 12 Months Ended
Sep. 30, 2024
Jun. 30, 2024
Mar. 31, 2024
Dec. 31, 2023
Sep. 30, 2023
Jun. 30, 2023
Mar. 31, 2023
Dec. 31, 2022
Sep. 30, 2024
Sep. 30, 2023
Accounting Policies [Abstract]                    
Loss from continuing operations $ (1,878) $ (679) $ (2,030) $ (4,039) $ (3,218) $ (1,009) $ (3,237) $ (3,055) $ (8,626) $ (10,519)
Income from discontinued operations, net of tax 1,435 751 440 617 116 375 870 466 3,243 1,827
Net loss $ (443) $ 72 $ (1,590) $ (3,422) $ (3,102) $ (634) $ (2,367) $ (2,589) $ (5,383) $ (8,692)
Weighted-average common shares outstanding (basic) (in shares)                 5,996 5,929
Weighted-average common shares outstanding (diluted) (in shares)                 5,996 5,929
Continuing operations - basic (in dollars per share) $ (0.33) $ (0.11) $ (0.33) $ (0.67) $ (0.53) $ (0.17) $ (0.55) $ (0.52) $ (1.44) $ (1.77)
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Basic Share                 0.54 0.30
Discontinued Operation, Income (Loss) from Discontinued Operation, Net of Tax, Per Diluted Share                 0.54 0.30
Continuing operations - diluted (in dollars per share) (0.33) (0.11) (0.33) (0.67) (0.53) (0.17) (0.55) (0.52) (1.44) (1.77)
Discontinued operations - basic (in dollars per share) 0.25 0.12 0.07 0.10 0.01 0.06 0.15 0.08 0.54 0.30
Discontinued operations - diluted (in dollars per share) 0.25 0.12 0.07 0.10 0.01 0.06 0.15 0.08 0.54 0.30
Basic loss per share (in dollars per share) (0.08) 0.01 (0.26) (0.57) (0.52) (0.11) (0.40) (0.44) (0.90) (1.47)
Diluted loss per share (in dollars per share) $ (0.08) $ 0.01 $ (0.26) $ (0.57) $ (0.52) $ (0.11) $ (0.40) $ (0.44) $ (0.90) $ (1.47)
Anti-dilutive weighted-average common shares excluded from calculation of diluted earnings per share (in shares)                 238 202
Entity Address, Postal Zip Code                 44103