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v3.20.2

Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands | 9 Months Ended
--- | ---
Sep. 30, 2020 | Sep. 30, 2019
Cash flows from operating activities: |  |
Net loss | $ (5,044) | $ (6,423)
Adjustments to reconcile net loss to net cash used in operating activities: |  |
Depreciation and amortization expense | 1,682 | 1,449
Amortization of right-of-use assets | 417 | 419
Stock-based compensation expense | 55 | 177
Provision for doubtful accounts, net | 82 | 78
Change of inventory to net realizable value | 937 | 537
Changes in operating assets and liabilities: |  |
Receivables | (1,319) | 368
Inventories | 2,667 | 2,812
Prepaid expenses and other assets | (985) | (4,186)
Accounts payable | 1,484 | (1,994)
Accrued liabilities | 179 | 863
Income taxes payable |  | 359
Deferred product revenue | (14) | (56)
Operating lease liabilities | (421) | (973)
Other long-term liabilities | (29) |
Net cash used in operating activities | (309) | (6,570)
Cash flows from investing activities: |  |
Purchase of property and equipment | (266) | (106)
Purchase of intangibles | (140) | (43)
Capitalized patent defense costs | (5,565) | (3,371)
Proceeds from maturities and sales of marketable securities | 3,697 | 9,823
Purchases of marketable securities | (2,155) | (8,913)
Net cash used in investing activities | (4,429) | (2,610)
Cash flows from financing activities: |  |
Issuance of common stock and warrants | 4,764 |
Net proceeds from Paycheck Protection Program loan | 1,499 |
Net proceeds from equity-based compensation programs | 11 | 20
Net cash provided by financing activities | 6,274 | 20
Effect of exchange rate changes on cash and cash equivalents | (17) | (41)
Net increase (decrease) in cash and cash equivalents | 1,519 | (9,201)
Cash and cash equivalents at the beginning of the period | 4,064 | 11,211
Cash and cash equivalents at the end of the period | 5,583 | 2,010
Supplemental cash flow activities: |  |
Cash paid for income taxes | 23 | 1
Cash paid for interest | $ 189 |

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- Definition Amount of cash inflow from issuance of shares under share-based payment arrangement. Includes, but is not limited to, option exercised. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=120381028&loc=SL79508275-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585 + Details
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- Definition The cash inflow from the issuance of long-term debt that is not secured by collateral. Excludes proceeds from tax exempt unsecured debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585 + Details
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- Definition The cash inflow associated with the aggregate amount received by the entity through sale or maturity of marketable securities (held-to-maturity or available-for-sale) during the period. + References No definition available. + Details
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- Definition Amount of expense (reversal of expense) for expected credit loss on accounts receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 20 -Section 50 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=121599337&loc=SL82919249-210447 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(5)) -URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227 + Details
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- Definition Amount of noncash expense for share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3602-108585 + Details
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