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BALANCE SHEET DETAILS - Property, Plant and Equipment, Net (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Property, Plant and Equipment |  |  |
Total | $ 35,362 | $ 33,197 |
Less: accumulated depreciation | (33,648) | (31,587) |
Total Property, plant and equipment, net | 1,714 | 1,610 |
Write off of fully depreciated property, plant and equipment | 600 | 19,600 | $ 2,800
Accumulated depreciation related to derecognized amount of property, plant and equipment | 600 | 19,600 | 2,800
Leasehold improvements |  |  |
Property, Plant and Equipment |  |  |
Total | 1,768 | 1,591 |
Accelerated depreciation related to early lease termination |  |  | $ 100
Automobiles |  |  |
Property, Plant and Equipment |  |  |
Total | 1,885 | 1,765 |
Software |  |  |
Property, Plant and Equipment |  |  |
Total | 3,140 | 3,267 |
Computer, Equipment and Furniture |  |  |
Property, Plant and Equipment |  |  |
Total | $ 28,569 | 26,507 |
Other |  |  |
Property, Plant and Equipment |  |  |
Total |  | $ 67 |

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- Definition Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.13) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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