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NOTE 4 - PROPERTY, PLANT AND EQUIPMENT, NET | 12 Months Ended
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Dec. 31, 2020
Property, Plant and Equipment [Abstract] |
PROPERTY, PLANT AND EQUIPMENT, NET |
|  | December 31, 2020 |  |  | December 31, 2019 |
(in thousands) |  |  |  |  |  |
Leasehold improvements |  | $ | 421 |  |  | $ | 395 |
Equipment |  |  | 5,625 |  |  |  | 5,606 |
Sales demonstration equipment |  |  | 963 |  |  |  | 778 |
|  |  | 7,009 |  |  |  | 6,779 |
Less accumulated depreciation |  |  | 5,793 |  |  |  | 5,111 |
Property and equipment, net |  | $ | 1,216 |  |  | $ | 1,668 |
Total depreciation expense recorded for 2020 and 2019 was $815,000 and $867,000, respectively.

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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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