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BALANCE SHEET DETAILS (Tables) | 12 Months Ended
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Dec. 31, 2018
Balance Sheet Related Disclosures [Abstract] |
Schedule of inventories |
|  | December 31, |  |  | December 31, |
|  | 2018 |  |  | 2017 |
|  | (in thousands) |
Inventories: |  |  |  |  |  |
Raw materials |  | $ | 1,665 |  |  | $ | 3,610 |
Work in process |  |  | 2,992 |  |  |  | 2,674 |
Finished goods(1) |  |  | 21,731 |  |  |  | 10,855 |
Total Inventory |  | $ | 26,388 |  |  | $ | 17,139 |
(1) | Includes finished goods at customer sites of approximately $14.4 million and $10.6 million at December 31, 2018 and 2017, 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, |
|  | 2018 |  |  | 2017 |
|  | (in thousands) |
Prepaid and other current assets |  |  |  |  |  |
Prepaid tax |  | $ | 3,468 |  |  | $ | 3,927 |
Advance to suppliers (1) |  |  | 982 |  |  |  | 6,542 |
Other receivable |  |  | 794 |  |  |  | 983 |
Prepaid others |  |  | 1,532 |  |  |  | 2,775 |
Total Prepaid and other current assets |  | $ | 6,776 |  |  | $ | 14,227 |
(1) | The $6.5 million advance to supplier as of December 31, 2017 was for obtaining a price discount.
Schedule of property, plant and equipment, net |
|  | December 31, |  |  | December 31, |
|  | 2018 |  |  | 2017 |
|  | (in thousands) |
Property, plant and equipment, net: |  |  |  |  |  |
Leasehold improvements |  | $ | 1,893 |  |  | $ | 1,768 |
Automobiles |  |  | 323 |  |  |  | 1,885 |
Computer and Software |  |  | 4,878 |  |  |  | 6,028 |
Equipment and Furniture |  |  | 23,556 |  |  |  | 25,681 |
Total |  |  | 30,650 |  |  |  | 35,362 |
Less: accumulated depreciation |  |  | (29,392 | ) |  |  | (33,648 | )
Total Property, plant and equipment, net |  | $ | 1,258 |  |  | $ | 1,714 |
Schedule of other current liabilities |
|  | December 31, |  |  | December 31, |
|  | 2018 |  |  | 2017 |
|  | (in thousands) |
Other current liabilities: |  |  |  |  |  |
Accrued contract costs(1) |  | $ | 353 |  |  | $ | 7,734 |
Accrued payroll and compensation |  |  | 5,224 |  |  |  | 7,040 |
Warranty costs |  |  | 91 |  |  |  | 51 |
Accrued professional fees |  |  | 602 |  |  |  | 897 |
Accrued other taxes |  |  | 1,087 |  |  |  | 3,133 |
Other |  |  | 3,154 |  |  |  | 4,891 |
Total other current liabilities |  | $ | 10,511 |  |  | $ | 23,746 |
(1) | Accrued contract costs include $7.3 million cost related to product and service sales contracts from India as of December 31, 2017.
Schedule of other long-term liabilities |
|  | December 31, |  |  | December 31, |
|  | 2018 |  |  | 2017 |
|  | (in thousands) |
Other long-term liabilities |  |  |  |  |  |
Non-current income tax payable |  | $ | 1,327 |  |  | $ | 2,530 |
Other long-term liabilities |  |  | 1,170 |  |  |  | 1,123 |
Total other long-term liabilities |  | $ | 2,497 |  |  | $ | 3,653 |

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