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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Cash flows from operating activities: |  |
Consolidated net income (loss) | $ 644 | $ (2,159)
Adjustments to reconcile consolidated net income (loss) to net cash provided by operating activities: |  |
Depreciation and amortization | 2,266 | 2,697
Stock-based compensation | 913 | 836
Deferred income taxes | (618) | (313)
Pension cost | 791 | 335
Loss on disposal of property and equipment | 48 |
Changes in operating assets and liabilities: |  |
Accounts receivable | (481) | 1,216
Prepaid expenses and other current assets | (555) | 1,248
Other assets | 270 | 332
Accounts payable, accrued expenses and other | 155 | (589)
Accrued salaries, wages and related benefits | 1,449 | (249)
Income and other taxes | 778 | 926
Net cash provided by operating activities | 5,660 | 4,280
Cash flows from investing activities: |  |
Capital expenditures | (1,414) | (1,667)
Proceeds from disposal of property and equipment | 39 |
Net cash used in investing activities | (1,375) | (1,667)
Cash flows from financing activities: |  |
Proceeds from bank loan | 580 |
Proceeds from exercise of stock options | 2,596 | 11
Payment of long-term obligations | (864) | (567)
Purchase of treasury stock |  | (1,843)
Net cash provided by (used in) financing activities | 2,312 | (2,399)
Effect of exchange rate changes on cash and cash equivalents | 102 | (209)
Net increase in cash and cash equivalents | 6,699 | 5
Cash and cash equivalents, beginning of year | 10,874 | 10,869
Cash and cash equivalents, end of year | 17,573 | 10,874
Supplemental disclosures of cash flow information: |  |
Cash paid for income taxes | 348 | 962
Cash paid for operating leases | 2,286 | 2,110
Cash paid for interest | $ 141 | $ 130

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