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CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Mar. 31, 2020 | Mar. 31, 2019 | Dec. 31, 2019
CASH FLOWS FROM OPERATING ACTIVITIES: |  |  |
Net loss | $ (3,205) | $ (1,652) |
Adjustments to reconcile net loss to net cash flows used in operating activities: |  |  |
Depreciation and amortization | 281 | 277 |
Amortization of operating lease right-of-use asset | 56 | 61 |
Amortization of finance lease right-of-use asset | 17 | 15 |
Amortization (accretion) of deferred financing costs, debt discounts and debt premiums | 664 | (100) |
Gain on settlement of liability, net |  | (167) |
Loss on extinguishment of convertible notes | 1,225 |  |
Stock-based compensation | 168 | 156 |
Provision for losses on doubtful accounts | 268 | 204 |
Warrant revaluation | (936) | (240) |
Derivative revaluation |  | (23) |
Changes in operating assets and liabilities: |  |  |
Accounts receivable | (577) | (315) |
Inventories | (11) | 48 |
Other assets | 75 | 86 |
Accounts payable | 250 | (425) |
Operating lease liabilities | (51) | (58) |
Accrued expenses and other liabilities | 187 | 254 |
Net cash used in operating activities | (1,589) | (1,879) |
CASH FLOWS FROM INVESTING ACTIVITIES: |  |  |
Purchase of property and equipment | (24) | (3) |
Net cash used in investing activities | (24) | (3) |
CASH FLOWS FROM FINANCING ACTIVITIES: |  |  |
Principal payments on finance lease obligations | (23) | (14) |
Issuance of common stock, net of issuance costs | 1,350 | 1,726 |
Proceeds from convertible notes |  | 250 |
Principal payments on convertible notes |  | (50) |
Principal payments on long-term debt | (145) | (109) |
Net cash flows provided by financing activities | 1,182 | 1,803 |
NET CHANGE IN CASH | (431) | (79) |
CASH AT BEGINNING OF PERIOD | 848 | 381 | $ 381
CASH AT END OF PERIOD | 417 | 302 | $ 848
SUPPLEMENTAL CASH FLOW INFORMATION |  |  |
Cash paid during the period for interest | 8 | 8 |
SUPPLEMENTAL DISCLOSURE OF CONSULTING SERVICES OR ANY OTHER NON-CASH COMMON STOCK RELATED ACTIVITY |  |  |
Conversion of interest on convertible debt into common stock | 325 | 2,933 |
Conversion of interest on convertible debt into common stock | 28 | 193 |
Liabilities exchanged for convertible notes |  | 2,150 |
Write-off of beneficial conversion feature in conjunction with convertible note extinguishment | 523 |  |
Right-of-use assets obtained in exchange for lease obligations | 0 | 750 |
Write-off of debt discounts (net of debt premiums) in conjunction with convertible note conversions | $ 63 | 315 |
Write-off of derivative liability in conjunction with convertible note conversions |  | $ 39 |

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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=119407570&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=116634182&loc=SL114868664-224227 + Details
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- Definition The cash outflow from the repayment of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585 + Details
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- Definition The cash outflow for a borrowing supported by a written promise to pay an obligation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585 + Details
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- Definition Amount of increase in right-of-use asset obtained in exchange for operating lease liability. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=77888399&loc=SL77918982-209971 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (g)(2) -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980 + 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=118932676&loc=d3e3602-108585 + Details
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- Definition The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of open derivatives, commodity, or energy contracts, held at each balance sheet date, that was included in earnings for the period. + 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 (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 + Details
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