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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands | Total | Cumulative-effect adjustment for adoption of ASC 842 | Common Stock | Treasury Stock | Additional Paid-In Capital | Accumulated Deficit | Accumulated Deficit Cumulative-effect adjustment for adoption of ASC 842
--- | --- | --- | --- | --- | --- | --- | ---
Beginning Balance (in shares) at Sep. 30, 2019 |  |  | 12,036,000 | 0 |  |  |
Beginning Balance at Sep. 30, 2019 | $ 45,571 | $ (2) | $ 12 | $ 0 | $ 85,114 | $ (39,555) | $ (2)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Expense related to director restricted stock unit (in shares) |  |  | 90,000 |  |  |  |
Expense related to director restricted stock unit | 87 |  |  |  | 87 |  |
Expense related to employee stock options | 116 |  |  |  | 116 |  |
Exercise of stock options (in shares) |  |  | 20,000 |  |  |  |
Exercise of stock options | 27 |  |  |  | 27 |  |
Repurchases of common stock (in shares) |  |  |  | 27,000 |  |  |
Repurchases of common stock | $ (111) |  |  |  |  |  |
Cancellation of common stock (in shares) | (22,000) |  |  |  |  |  |
Cancellation of common stock | $ (95) |  |  |  |  |  |
Net income | 1,551 |  |  |  |  | 1,551 |
Ending Balance (in shares) at Dec. 31, 2019 |  |  | 12,124,000 | 27,000 |  |  |
Ending Balance at Dec. 31, 2019 | $ 47,144 |  | $ 12 | $ (111) | 85,249 | (38,006) |
Beginning Balance (in shares) at Sep. 30, 2020 | 12,404,000 |  | 12,404,000 | 0 |  |  |
Beginning Balance at Sep. 30, 2020 | $ 53,437 |  | $ 12 | $ 0 | 85,868 | (32,443) |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |
Expense related to director restricted stock unit (in shares) |  |  | 78,000 |  |  |  |
Expense related to director restricted stock unit | 116 |  |  |  | 116 |  |
Expense related to employee stock options | $ 342 |  |  |  | 342 |  |
Exercise of stock options (in shares) | 62,000 |  | 62,000 |  |  |  |
Exercise of stock options | $ 226 |  | $ 1 |  | 225 |  |
Net income | $ 1,814 |  |  |  |  | 1,814 |
Ending Balance (in shares) at Dec. 31, 2020 | 12,544,000 |  | 12,544,000 | 0 |  |  |
Ending Balance at Dec. 31, 2020 | $ 55,935 |  | $ 13 | $ 0 | $ 86,551 | $ (30,629) |

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