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BALANCE SHEET DETAILS (Tables) | 12 Months Ended
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Dec. 31, 2020
Balance Sheet Related Disclosures [Abstract] |
Schedule of Inventories |
|  | December 31, |  |  | December 31, |
|  | 2020 |  |  | 2019 |
|  | (in thousands) |
Inventories: |  |  |  |  |  |
Raw materials |  | $ | 3,328 |  |  | $ | 2,362 |
Work in process |  |  | 1,766 |  |  |  | 1,285 |
Finished goods(1) |  |  | 1,601 |  |  |  | 2,495 |
Total Inventory |  | $ | 6,695 |  |  | $ | 6,142 |
(1) | Includes finished goods at customer sites of approximately $0.5 million and $0.6 million at December 31, 2020 and 2019, 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, |
|  | 2020 |  |  | 2019 |
|  | (in thousands) |
Prepaid and other current assets |  |  |  |  |  |
Prepaid tax (1) |  | $ | 1,736 |  |  | $ | 2,340 |
Advance to suppliers |  |  | 15 |  |  |  | 4 |
Other receivable |  |  | 1,054 |  |  |  | 1,361 |
Prepaid and others (2) |  |  | 2,303 |  |  |  | 1,819 |
Total Prepaid and other current assets |  | $ | 5,108 |  |  | $ | 5,524 |
(1) | 2020 balance includes $0.1 million prepaid consumption tax, $0.8 million prepaid of value added tax, $0.5 million duty recoverable and $0.3 million goods and service tax.
(2) | 2020 balance includes $1.4 million interest receivable, $0.4 million prepaid of software and license.
Schedule of Property, Plant and Equipment, Net |
|  | December 31, |  |  | December 31, |
|  | 2020 |  |  | 2019 |
|  | (in thousands) |
Property, plant and equipment, net: |  |  |  |  |  |
Leasehold improvements |  | $ | 1,846 |  |  | $ | 1,799 |
Automobiles |  |  | 340 |  |  |  | 319 |
Computer and Software |  |  | 4,579 |  |  |  | 4,764 |
Equipment and Furniture |  |  | 23,906 |  |  |  | 22,521 |
Total |  |  | 30,671 |  |  |  | 29,403 |
Less: accumulated depreciation |  |  | (30,051 | ) |  |  | (28,311 | )
Total Property, plant and equipment, net |  | $ | 620 |  |  | $ | 1,092 |
Schedule of Other Current Liabilities |
|  | December 31, |  |  | December 31, |
|  | 2020 |  |  | 2019 |
|  | (in thousands) |
Other current liabilities: |  |  |  |  |  |
Accrued contract costs |  | $ | — |  |  | $ | 140 |
Warranty costs |  |  | 54 |  |  |  | 90 |
Accrued professional fees |  |  | 685 |  |  |  | 1,074 |
Accrued other taxes |  |  | 376 |  |  |  | 1,063 |
Other |  |  | 2,930 |  |  |  | 2,381 |
Total other current liabilities |  | $ | 4,045 |  |  | $ | 4,748 |
Schedule of Other Long-term Liabilities |
|  | December 31, |  |  | December 31, |
|  | 2020 |  |  | 2019 |
|  | (in thousands) |
Other long-term liabilities |  |  |  |  |  |
Non-current income tax payable |  | $ | 1,000 |  |  | $ | 1,349 |
Other long-term liabilities |  |  | — |  |  |  | — |
Total other long-term liabilities |  | $ | 1,000 |  |  | $ | 1,349 |

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