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PROPERTY PLANT AND EQUIPMENT NET | 12 Months Ended
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Dec. 31, 2021
PROPERTY PLANT AND EQUIPMENT NET |
PROPERTY PLANT AND EQUIPMENT NET | NOTE 4 – PROPERTY, PLANT AND EQUIPMENT, NET
|  | December 31, 2021 |  |  | December 31, 2020 |
(in thousands) |  |  |  |  |  |
Leasehold improvements |  | $ | 430 |  |  | $ | 421 |
Equipment |  |  | 5,218 |  |  |  | 5,625 |
Sales demonstration equipment |  |  | 754 |  |  |  | 963 |
|  |  | 6,402 |  |  |  | 7,009 |
Less accumulated depreciation |  |  | 5,456 |  |  |  | 5,793 |
Property and equipment, net |  | $ | 946 |  |  | $ | 1,216 |
Total depreciation expense recorded for 2021 and 2020 was $667,000 and $815,000, respectively.

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