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Parent Company Condensed Financial Information -Condensed Statements of Cash Flows (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Cash Flows from Operating Activities |  |  |
Net income | $ 15,684 | $ 15,385 | $ 10,136
Adjustments to reconcile net income (loss) to net cash from operating activities: |  |  |
Deferred income taxes | 8,421 | 8,756 | 5,563
Change in taxes payable | 260 | 100 | 86
Stock-based compensation | 657 | 613 | 295
Net cash provided by (used in) operating activities | 27,255 | 21,137 | (6,307)
Cash Flows from Financing Activities |  |  |
Dividends paid on preferred stock |  | (2,417) | (12,390)
Dividends paid common stock | (888) |  |
Purchases of treasury stock | (254) | (117) | (46)
Proceeds from issuance of common stock |  |  | 64,331
Proceeds From Issuance Of Senior Notes | 43,994 |  |
Repayment of subordinate debt | (45,000) |  |
Proceeds from (Repayments of) Notes Payable | (500) |  |
Proceeds from Stock Options Exercised | 11 |  |
Redemption of preferred stock |  | (47,331) | (24,321)
Net cash (used in) provided by financing activities | 102,813 | 7,200 | 68,977
Net change in cash and cash equivalents | 6,996 | (3,859) | (3,463)
Cash and cash equivalents at beginning of period | 40,338 | 44,197 | 47,660
Cash and cash equivalents at end of period | 47,334 | 40,338 | 44,197
Old Second Bancorp, Inc. |  |  |
Cash Flows from Operating Activities |  |  |
Net income | 15,684 | 15,385 | 10,136
Adjustments to reconcile net income (loss) to net cash from operating activities: |  |  |
Equity in undistributed net income of subsidiaries | (20,023) | 63,208 | (14,372)
Deferred income taxes | (1,039) | (2,806) | (2,256)
Change in taxes payable | 330 | (199) | 22
Change in other assets | 171 | 36 | 692
Stock-based compensation | 657 | 613 | 295
Other, net | 282 | 69 | (17,103)
Net cash provided by (used in) operating activities | (3,938) | 76,306 | (22,586)
Cash Flows from Financing Activities |  |  |
Dividends paid on preferred stock |  | (2,417) | (12,390)
Dividends paid common stock | (888) |  |
Purchases of treasury stock | (254) | (117) | (46)
Proceeds from issuance of common stock |  |  | 64,331
Proceeds From Issuance Of Senior Notes | 43,994 |  |
Repayment of subordinate debt | (45,000) |  |
Proceeds from (Repayments of) Notes Payable | (500) |  |
Proceeds from Stock Options Exercised | 11 |  |
Redemption of preferred stock |  | (47,331) | (24,321)
Net cash (used in) provided by financing activities | (2,637) | (49,865) | 27,574
Net change in cash and cash equivalents | (6,575) | 26,441 | 4,988
Cash and cash equivalents at beginning of period | 33,500 | 7,059 | 2,071
Cash and cash equivalents at end of period | $ 26,925 | $ 33,500 | $ 7,059

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