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Note 7 - Property and Equipment | 12 Months Ended
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Dec. 31, 2021
Notes to Financial Statements |
Property, Plant and Equipment Disclosure [Text Block] | NOTE 7. PROPERTY AND EQUIPMENT Property and equipment consisted of the following (in thousands):
|  | December 31, |  |  | December 31, |
|  | 2021 |  |  | 2020 |
Office and laboratory equipment |  | $ | 20 |  |  | $ | 20 |
Furniture and fixtures |  |  | 157 |  |  |  | 157 |
Computer equipment and software |  |  | 464 |  |  |  | 365 |
Production equipment |  |  | 114 |  |  |  | 65 |
Leasehold improvements |  |  | 79 |  |  |  | 79 |
Total property and equipment, at cost |  |  | 834 |  |  |  | 686 |
Less: accumulated depreciation and amortization |  |  | (641 | ) |  |  | (602 | )
Total property and equipment, net |  | $ | 193 |  |  | $ | 84 |
Depreciation and amortization expense was $59 thousand, $51 thousand, and $65 thousand for the years ended December 31, 2021, 2020 and 2019, respectively. During the years ended December 31, 2021 and 2020, the Company disposed of damaged, unusable and fully depreciated property and equipment with cost of approximately $12 thousand and $10 thousand, respectively. As a result, the Company recognized an immaterial loss on the disposal of these assets in the consolidated statements of operation and comprehensive loss for such periods.

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- Definition The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99893-112916 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI http://asc.fasb.org/topic&trid=2155823 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=120429125&loc=SL120174063-112916 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99779-112916 + Details
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