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CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2020 | Sep. 30, 2019
Cash flows from operating activities: |  |
Consolidated net loss | $ (543) | $ (1,719)
Adjustments to reconcile consolidated net loss to net cash provided by operating activities: |  |
Depreciation and amortization | 1,720 | 2,106
Stock-based compensation | 700 | 624
Deferred income taxes | (412) | (607)
Pension cost | 596 | 274
Loss on disposal of property and equipment | 33 |
Changes in operating assets and liabilities: |  |
Accounts receivable | 568 | 2,509
Prepaid expenses and other current assets | (297) | 904
Other assets | (8) | 367
Accounts payable, accrued expenses and others | 814 | (208)
Accrued salaries, wages and related benefits | 1,729 | (29)
Income and other taxes | 753 | 669
Net cash provided by operating activities | 5,653 | 4,890
Cash flows from investing activities: |  |
Capital expenditures | (1,115) | (1,314)
Proceeds from disposal of property and equipment | 39 |
Net cash used in investing activities | (1,076) | (1,314)
Cash flows from financing activities: |  |
Proceeds from bank loan | 580 |
Payment of long-term obligations | (800) | (922)
Proceeds from exercise of stock options | 167 |
Purchase of treasury stock |  | (44)
Net cash used in financing activities | (53) | (966)
Effect of exchange rate changes on cash and cash equivalents | (62) | (291)
Net increase in cash and cash equivalents | 4,462 | 2,319
Cash and cash equivalents, beginning of period | 10,874 | 10,869
Cash and cash equivalents, end of period | 15,336 | 13,188
Supplemental disclosures of cash flow information: |  |
Cash paid for income taxes | 209 | 726
Cash paid for operating leases | 1,412 | $ 1,909
Vendor financed software licenses acquired | $ 1,079 |

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