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v3.20.4

CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Cash flows from operating activities: |  |
Net loss | $ (3,780) | $ (2,580)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities: |  |
Provision for doubtful accounts | 41 |
Depreciation and amortization | 143 | 185
Stock-based compensation | 257 | 263
Impairment of goodwill |  | 420
Accrued interest | 243 | 220
Loss on disposal of assets | 4 |
Amortization of lease right-of-use asset | 212 | 212
Change in operating lease liability | (220) | (219)
Other | (1) | (6)
Changes in assets and liabilities |  |
Accounts receivable | 433 | 447
Inventories | 369 | 180
Prepaid expenses and other assets | (135) | 416
Accounts payable | (142) | (18)
Deferred revenue and other liabilities | (15) | (171)
Net cash used in operating activities | (2,591) | (651)
Cash flows from investing activities: |  |
Purchases of property and equipment | (71) | (103)
Proceeds from maturities of marketable securities and investments | 300 | 1,275
Purchases of marketable securities and investments |  | (1,568)
Net cash provided by (used in) investing activities | 229 | (396)
Cash flows from financing activities: |  |
Proceeds from sale of common stock and warrants, net of issuance costs | 1,619 |
Net proceeds from exercise of pre-funded warrants | 2 |
Taxes paid to net share settle equity awards | (2) | (4)
Net cash provided by (used in) financing activities | 2,198 | (4)
Net decrease in cash and cash equivalents | (164) | (1,051)
Cash and cash equivalents at beginning of year | 6,053 | 7,104
Cash and cash equivalents at end of year | 5,889 | 6,053
Supplemental disclosure: |  |
Cash paid for income taxes | 2 | 2
Noncash investing and financing activities: |  |
Issuance of convertible notes in settlement of accrued interest | 234 | $ 187
Fair value of warrant exercise price adjustment considered as deemed dividend | 392 |
PPP Note |  |
Cash flows from financing activities: |  |
Proceeds from PPP note | $ 579 |

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