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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Operating Activities |  |
Net income | $ 39,632 | $ 34,785
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Depreciation, depletion and amortization | 16,240 | 14,683
Amortization of deferred financing fees | 334 | 334
Deferred income taxes | 8,698 | 9,281
Stock-based compensation | 4,924 | 3,958
Gain on sale of assets | (206) | (892)
Other | (7,405) | (7,946)
Working capital changes: |  |
Affiliates receivable/payable | 1,903 | 6,771
Accounts receivable | 8,221 | (3,008)
Inventories | (9,256) | (1,193)
Other current assets | 1,432 | (508)
Accounts payable | (388) | 60
Income taxes receivable/payable | (5,447) | (2,478)
Other current liabilities | (5,898) | 775
Net cash provided by operating activities | 52,784 | 54,622
Investing Activities |  |
Expenditures for property, plant and equipment | (24,664) | (20,930)
Proceeds from the sale of assets | 4,572 | 1,454
Other | (170) | 1,089
Net cash used for investing activities | (20,262) | (18,387)
Financing Activities |  |
Net additions (reductions) to revolving credit agreement | 12,000 | (46,000)
Additions to long-term debt | 2,000 | 396
Reductions to long-term debt | (742) | (1,125)
Cash dividends paid | (5,132) | (4,578)
Purchase of treasury shares | (3,010) | (1,294)
Other | (3) | 23
Net cash provided by (used for) financing activities | 5,113 | (52,578)
Cash and Cash Equivalents |  |
Total increase (decrease) for the year | 37,635 | (16,343)
Balance at the beginning of the year | 85,257 | 101,600
Balance at the end of the year | 122,892 | 85,257
Unallocated Items |  |
Adjustments to reconcile net income to net cash provided by operating activities: |  |
Depreciation, depletion and amortization | 246 | 349
Investing Activities |  |
Expenditures for property, plant and equipment | $ (231) | $ (884)

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- Definition The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 12 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3179-108585 + Details
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- Definition The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585 + Details
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