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Note 13 - Condensed Financial Statements of Parent Company - Condensed Statements of Cash Flows (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Cash Flows from Operating Expenses |  |  |
Net income | $ 14,092 | $ 14,942 | $ 15,833
Adjustment to reconcile net income to net cash provided by operating activities: |  |  |
Amortization of premiums and accretion of discounts, net | 58 | 89 | 117
Depreciation | 805 | 801 | 749
Gain on sale of securities | (14) | (232) | (33)
Loss on disposal of fixed assets | (134) |  | 15
Other assets | (2,537) | 438 | 559
Net change in other liabilities | 101 | (41) | 963
Cash Flows from Investing Activities |  |  |
Net change in interest-bearing deposits | 29,035 | 50,543 | (28,263)
Maturities, sales and calls of securities available for sale | 13,812 | 220,581 | 64,556
Maturities and calls of securities held to maturity | 8,975 | 16,945 | 9,205
Cash Flows from Financing Activities |  |  |
Cash dividends paid | (8,141) | (8,071) | (7,930)
Stock options exercised |  |  | 173
Net change in cash | (1,048) | 1,822 | (742)
Parent Company [Member] |  |  |
Cash Flows from Operating Expenses |  |  |
Net income | 14,092 | 14,942 | 15,833
Adjustment to reconcile net income to net cash provided by operating activities: |  |  |
Equity in undistributed net income of subsidiaries | (6,532) | (5,896) | (8,533)
Amortization of premiums and accretion of discounts, net |  | 1 | 1
Depreciation | 0 |  | 3
Gain on sale of securities | (4) |  |
Loss on disposal of fixed assets |  |  | 2
Net change in refundable income taxes due from subsidiaries | (146) | (223) | 106
Other assets | (156) | 219 | (81)
Net change in other liabilities | (40) | (227) | 128
Net cash provided by operating activities | 7,214 | 8,816 | 7,459
Cash Flows from Investing Activities |  |  |
Net change in interest-bearing deposits | 807 | (1,140) | 307
Maturities, sales and calls of securities available for sale | 192 |  |
Maturities and calls of securities held to maturity |  | 450 | 0
Capital distribution to subsidiary | (100) |  |
Net cash provided by (used in) investing activities | 899 | (690) | 307
Cash Flows from Financing Activities |  |  |
Cash dividends paid | (8,141) | (8,071) | (7,930)
Stock options exercised | 0 |  | 173
Net cash used in financing activities | (8,141) | (8,071) | (7,757)
Net change in cash | (28) | 55 | 9
Cash due from subsidiaries at beginning of year | 74 | 19 | 10
Cash due from subsidiaries at end of year | $ 46 | $ 74 | $ 19

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- Definition The sum of the periodic adjustments of the differences between securities' face values and purchase prices that are charged against earnings. This is called accretion if the security was purchased at a discount and amortization if it was purchased at premium. As a noncash item, this element is an adjustment to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585 + Details
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