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CONSOLIDATED STATEMENT OF CASH FLOWS (in thousands) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
CASH FLOWS FROM OPERATING ACTIVITIES: |  |
Net income (loss) | $ (3,964) | $ (1,187)
Adjustments to reconcile income (loss) to net cash provided by (used in) operating activities: |  |
Depreciation and amortization | 815 | 867
Gain on sale of assets | 0 | (64)
Equipment transferred to cost of goods sold | 245 | 63
Share-based compensation | 1,467 | 1,171
Impairment and related charges | 943 | 0
Net change in: |  |
Trade accounts receivable | 1,664 | (375)
Inventories | (414) | 139
Other current assets | (398) | (307)
Accounts payable and accrued liabilities | (38) | (2,031)
Deferred revenue | (380) | (98)
Other long-term liabilities | (491) | (29)
Deposits and other long-term assets | 1,182 | (245)
Net cash provided by (used in) operating activities | 631 | (2,096)
CASH FLOWS FROM INVESTING ACTIVITIES: |  |
Purchases of property, plant and equipment | (860) | (612)
Net proceeds from sale of assets | 0 | 64
Cash provided by (used in) investing activities | (860) | (548)
CASH FLOWS FROM FINANCING ACTIVITIES: |  |
Net proceeds from issuance of common stock, less payments for shares withheld to cover tax | (144) | (213)
Repurchase of common stock | 0 | (1,464)
Cash provided by (used in) financing activities | (144) | (1,677)
Increase (decrease) in cash and cash equivalents | (373) | (4,321)
Effects of exchange rate changes on cash | 604 | (86)
Cash and cash equivalents at beginning of period | 13,936 | 18,343
Cash and cash equivalents at end of period | 14,167 | 13,936
Supplemental disclosure of non-cash financing activities: |  |
Cash paid during the period for: Income taxes | $ 137 | $ 307

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