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BALANCE SHEET DETAILS | 12 Months Ended
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Dec. 31, 2020
Balance Sheet Related Disclosures [Abstract] |
BALANCE SHEET DETAILS | NOTE 5-BALANCE SHEET DETAILS The following tables provide details of selected balance sheet items:
|  | 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.
|  | 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.
|  | 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 |
During the years ended December 31, 2020, 2019 and 2018, the Company wrote-off fully depreciated property, plant and equipment of $0.5 million with accumulated depreciation of $0.5 million, $0.1 million with accumulated depreciation of $0.1 million, and $3.3 million with accumulated depreciation of $3.3 million, respectively.
|  | 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 |
|  | 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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- Definition The entire disclosure for supplemental balance sheet disclosures, including descriptions and amounts for assets, liabilities, and equity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -URI http://asc.fasb.org/topic&trid=2122208 + Details
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