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BALANCE SHEET DETAILS (Tables) | 12 Months Ended
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Dec. 31, 2022
Balance Sheet Related Disclosures [Abstract] |
Schedule of Inventories | The following tables provide details of selected balance sheet items:
|  | December 31, |  |  | December 31, |
|  | 2022 |  |  | 2021 |
|  | (in thousands) |
Inventories: |  |  |  |  |  |
Raw materials |  | $ | 55 |  |  | $ | 563 |
Work in process |  |  | 14 |  |  |  | 39 |
Finished goods (1) |  |  | 1,200 |  |  |  | 935 |
Total Inventories |  | $ | 1,269 |  |  | $ | 1,537 |
(1) Includes finished goods at customer sites of approximately $0.1 million and $0.1 million at December 31, 2022 and 2021, respectively, for which the customer has taken possession, but based on specific contractual terms, title has not yet passed to the customer and for which revenue has not yet been recognized.
Schedule of Prepaid and Other Current Assets |
|  | December 31, |  |  | December 31, |
|  | 2022 |  |  | 2021 |
|  | (in thousands) |
Prepaid and other current assets |  |  |  |  |  |
Prepaid tax (1) |  | $ | 553 |  |  | $ | 1,295 |
Advance to suppliers |  |  | 50 |  |  |  | 7 |
Other receivables |  |  | 446 |  |  |  | 796 |
Prepaid and others (2) |  |  | 3,046 |  |  |  | 2,713 |
Total Prepaid and other current assets |  | $ | 4,095 |  |  | $ | 4,811 |
(1) 2022 balance includes $0.1 million prepaid consumption tax, $0.2 million prepaid value added tax and $0.3 million prepaid goods and service tax. 2021 balance includes $0.1 million prepaid consumption tax, $0.9 million prepaid value added tax, $0.01 million duty recoverable and $0.3 million prepaid goods and service tax. (2) 2022 balance includes $2.1 million interest receivable. 2021 balance includes $2.0 million interest receivable.
Schedule of Property, Plant and Equipment, Net |
|  | December 31, |  |  | December 31, |
|  | 2022 |  |  | 2021 |
|  | (in thousands) |
Property, plant and equipment, net: |  |  |  |  |  |
Leasehold improvements |  | $ | 1,637 |  |  | $ | 1,801 |
Automobiles |  |  | 256 |  |  |  | 271 |
Computers and software |  |  | 3,132 |  |  |  | 4,461 |
Equipment and furniture |  |  | 19,668 |  |  |  | 22,240 |
Total |  |  | 24,693 |  |  |  | 28,773 |
Less: accumulated depreciation |  |  | (24,089 | ) |  |  | (28,171 | )
Total Property, plant and equipment, net |  | $ | 604 |  |  | $ | 602 |
Schedule of Other Current Liabilities |
|  | December 31, |  |  | December 31, |
|  | 2022 |  |  | 2021 |
|  | (in thousands) |
Other current liabilities: |  |  |  |  |  |
Warranty costs |  | $ | 67 |  |  | $ | 53 |
Accrued professional fees |  |  | 702 |  |  |  | 993 |
Accrued other taxes |  |  | 878 |  |  |  | 36 |
Provision for liquidation damages |  |  | 1,031 |  |  |  | 1,073 |
Contract deposits |  |  | 604 |  |  |  | 349 |
Others |  |  | 611 |  |  |  | 869 |
Total other current liabilities |  | $ | 3,893 |  |  | $ | 3,373 |
Schedule of Other Long-term Liabilities |
|  | December 31, |  |  | December 31, |
|  | 2022 |  |  | 2021 |
|  | (in thousands) |
Other long-term liabilities |  |  |  |  |  |
Non-current income tax payable |  | $ | 1,000 |  |  | $ | 979 |
Total other long-term liabilities |  | $ | 1,000 |  |  | $ | 979 |

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