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CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY - USD ($) $ in Thousands | Total | Common stock amount | Additional paid-in capital | Retained earnings | Accumulated other comprehensive income | Treasury stock
--- | --- | --- | --- | --- | --- | ---
Balance at beginning of period at Dec. 31, 2015 | $ 154,152 | $ 13,577 | $ 21,624 | $ 122,260 | $ 3,629 | $ (6,938)
Comprehensive income: |  |  |  |  |  |
Net income | 8,717 |  |  | 8,717 |  |
Other comprehensive loss | 4,862 |  |  |  | 4,862 |
Total comprehensive income | 13,579 |  |  | 8,717 | 4,862 |
Cash dividends declared ($0.37 and $0.36 per share for the six months ended June 30, 2017 and 2016, respectively) | (3,219) |  |  | (3,219) |  |
Treasury stock purchased (2,861 and 22,425 for the six months ended June 30, 2017 and 2016, respectively) | (481) |  |  |  |  | (481)
Net issuance (49,029 and 51,636 for the six months ended June 30, 2017 and 2016, respectively) to employee stock plans, including related tax effects | 355 |  | 92 | (86) |  | 349
Stock-based compensation | 845 |  | 845 |  |  |
Balance at end of period at Jun. 30, 2016 | 165,231 | 13,577 | 22,561 | 127,672 | 8,491 | (7,070)
Balance at beginning of period at Mar. 31, 2016 |  |  |  |  | 7,065 |
Comprehensive income: |  |  |  |  |  |
Net income | 4,311 |  |  |  |  |
Other comprehensive loss | 1,426 |  |  |  |  |
Total comprehensive income | 5,737 |  |  |  |  |
Balance at end of period at Jun. 30, 2016 | 165,231 | 13,577 | 22,561 | 127,672 | 8,491 | (7,070)
Balance at beginning of period at Dec. 31, 2016 | 156,740 | 13,577 | 23,027 | 130,489 | (4,326) | (6,027)
Comprehensive income: |  |  |  |  |  |
Net income | 10,767 |  |  | 10,767 |  |
Other comprehensive loss | 2,621 |  |  |  | 2,621 |
Total comprehensive income | 13,388 |  |  | 10,767 | 2,621 |
Cash dividends declared ($0.37 and $0.36 per share for the six months ended June 30, 2017 and 2016, respectively) | (5,744) |  |  | (5,744) |  |
Treasury stock purchased (2,861 and 22,425 for the six months ended June 30, 2017 and 2016, respectively) | (86) |  |  |  |  | (86)
Acquisition of Lake Sunapee Bank Group | 181,919 | 8,328 | 173,591 |  |  |
Net issuance (49,029 and 51,636 for the six months ended June 30, 2017 and 2016, respectively) to employee stock plans, including related tax effects | 365 |  | (68) | (40) |  | 473
Three-for-two stock split | (16) | 10,952 | (10,952) | (16) |  |
Stock-based compensation | 556 |  | 556 |  |  |
Balance at end of period at Jun. 30, 2017 | 347,122 | 32,857 | 186,154 | 135,456 | (1,705) | (5,640)
Balance at beginning of period at Mar. 31, 2017 |  |  |  |  | (3,662) |
Comprehensive income: |  |  |  |  |  |
Net income | 6,556 |  |  |  |  |
Other comprehensive loss | 1,957 |  |  |  |  |
Total comprehensive income | 8,513 |  |  |  |  |
Balance at end of period at Jun. 30, 2017 | $ 347,122 | $ 32,857 | $ 186,154 | $ 135,456 | $ (1,705) | $ (5,640)

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