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CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY - USD ($) $ in Thousands | Total | Common Stock | Additional Paid-in Capital | Retained Earnings | Treasury Stock | Accumulated Other Comprehensive Income (Loss)
--- | --- | --- | --- | --- | --- | ---
Beginning balances at Dec. 31, 2019 |  | $ 182,627 | $ 53 | $ 46,382 | $ 153,701 | $ (11,710) | $ (5,799)
Increase (Decrease) in Shareholders' Equity [Roll Forward] |  |  |  |  |  |  |
Net income |  | 14,029 |  |  | 14,029 |  |
Other comprehensive (loss) income |  | 7,441 |  |  |  |  | 7,441
Restricted stock awards |  | 431 |  | 431 |  |  |
Restricted stock units for directors' deferred compensation plan |  | 25 |  | 25 |  |  |
Distribution of treasury stock grants for employee restricted stock awards |  | 0 |  | (7) |  | 7 |
Cash dividends declared |  | (3,743) |  |  | (3,743) |  |
Distribution of treasury stock for directors' compensation |  | 350 |  | 144 |  | 206 |
Distribution of shares of treasury stock for employee stock compensation |  | 100 |  | 41 |  | 59 |
Distribution of shares of treasury stock for deferred directors' compensation |  | (12) |  | (180) |  | 168 |
Repurchase of common stock |  | (5,137) |  |  |  | (5,137) |
Sale of treasury stock | [1] | 894 |  | 51 |  | 843 |
Forfeiture of shares of restricted stock awards |  | 0 |  | 5 |  | (5) |
Ending balances at Sep. 30, 2020 |  | 197,005 | 53 | 46,892 | 163,987 | (15,569) | 1,642
Beginning balances at Jun. 30, 2020 |  | 194,589 | 53 | 46,758 | 159,505 | (13,869) | 2,142
Increase (Decrease) in Shareholders' Equity [Roll Forward] |  |  |  |  |  |  |
Net income |  | 5,711 |  |  | 5,711 |  |
Other comprehensive (loss) income |  | (500) |  |  |  |  | (500)
Restricted stock awards |  | 125 |  | 125 |  |  |
Restricted stock units for directors' deferred compensation plan |  | 5 |  | 5 |  |  |
Cash dividends declared |  | (1,229) |  |  | (1,229) |  |
Repurchase of common stock |  | (1,816) |  |  |  | (1,816) |
Sale of treasury stock | [1] | 120 |  | 4 |  | 116 |
Ending balances at Sep. 30, 2020 |  | 197,005 | 53 | 46,892 | 163,987 | (15,569) | 1,642
Beginning balances at Dec. 31, 2020 |  | 199,699 | 53 | 46,764 | 168,006 | (17,525) | 2,401
Increase (Decrease) in Shareholders' Equity [Roll Forward] |  |  |  |  |  |  |
Net income |  | 19,971 |  |  | 19,971 |  |
Other comprehensive (loss) income |  | (9,467) |  |  |  |  | (9,467)
Restricted stock awards |  | 307 |  | 307 |  |  |
Restricted stock units for directors' deferred compensation plan |  | 14 |  | 14 |  |  |
Cash dividends declared |  | (4,104) |  |  | (4,104) |  |
Distribution of treasury stock for directors' compensation |  | 317 |  | 64 |  | 253 |
Distribution of shares of treasury stock for employee stock compensation |  | 132 |  | 27 |  | 105 |
Distribution of shares of treasury stock for deferred directors' compensation |  | 3 |  | (72) |  | 75 |
Repurchase of common stock |  | (1,050) |  |  |  | (1,050) |
Sale of treasury stock | [1] | 317 |  | 99 |  | 218 |
Ending balances at Sep. 30, 2021 |  | 206,139 | 53 | 47,203 | 183,873 | (17,924) | (7,066)
Beginning balances at Jun. 30, 2021 |  | 203,977 | 53 | 47,081 | 178,673 | (17,972) | (3,858)
Increase (Decrease) in Shareholders' Equity [Roll Forward] |  |  |  |  |  |  |
Net income |  | 6,646 |  |  | 6,646 |  |
Other comprehensive (loss) income |  | (3,208) |  |  |  |  | (3,208)
Restricted stock awards |  | 84 |  | 84 |  |  |
Restricted stock units for directors' deferred compensation plan |  | 5 |  | 5 |  |  |
Cash dividends declared |  | (1,446) |  |  | (1,446) |  |
Repurchase of common stock |  | (4) |  |  |  | (4) |
Sale of treasury stock | [1] | 85 |  | 33 |  | 52 |
Ending balances at Sep. 30, 2021 |  | $ 206,139 | $ 53 | $ 47,203 | $ 183,873 | $ (17,924) | $ (7,066)
[1] | All treasury stock sales were completed at the prevailing market price with the Chemung Canal Trust Company Profit Sharing, Savings, and Investment Plan which is a defined contribution plan sponsored by the Bank.

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