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Financial Statement Components (Tables) | 12 Months Ended
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Dec. 29, 2018
Organization Consolidation And Presentation Of Financial Statements [Abstract] |
Selected financial statement components | The following tables provide details of selected financial statement components as of the following dates (in thousands):
|  | At |
|  | December 29, 2018 |  |  | December 30, 2017 |
Inventories: |  |  |  |  |  |  |  |
Raw materials and sub-assemblies |  | $ | 31,434 |  |  | $ | 32,187 |
Work in process |  |  | 22,383 |  |  |  | 13,498 |
Finished goods |  |  | 8,098 |  |  |  | 7,175 |
Inventories |  |  | 61,915 |  |  |  | 52,860 |
Inventories-delivered systems |  |  | 180 |  |  |  | 1,534 |
Total inventories |  | $ | 62,095 |  |  | $ | 54,394 |
Property, plant and equipment, net:(1) |  |  |  |  |  |  |  |
Land |  | $ | 15,571 |  |  | $ | 15,573 |
Building and improvements |  |  | 21,354 |  |  |  | 20,880 |
Machinery and equipment |  |  | 39,898 |  |  |  | 36,380 |
Furniture and fixtures |  |  | 2,551 |  |  |  | 2,420 |
Software |  |  | 10,116 |  |  |  | 9,558 |
Capital in progress |  |  | 6,027 |  |  |  | 4,418 |
Total property, plant and equipment, gross |  |  | 95,517 |  |  |  | 89,229 |
Accumulated depreciation and amortization |  |  | (47,617 | ) |  |  | (44,419 | )
Total property, plant and equipment, net |  | $ | 47,900 |  |  | $ | 44,810 |
(1) Total depreciation and amortization expense for the years ended December 29, 2018, December 30, 2017 and December 31, 2016 was $6.5 million, $6.7 million, and $6.8 million, respectively. |
Other Current Liabilities: |  |  |  |  |  |  |  |
Accrued warranty |  | $ | 4,379 |  |  | $ | 4,863 |
Accrued taxes |  |  | 1,738 |  |  |  | 813 |
Customer deposits |  |  | 293 |  |  |  | — |
Accrued professional services |  |  | 448 |  |  |  | 534 |
Third party commissions |  |  | 1,382 |  |  |  | 76 |
Other |  |  | 1,181 |  |  |  | 963 |
Total other current liabilities |  | $ | 9,421 |  |  | $ | 7,249 |
Components of accumulated other comprehensive income (loss) | Components of Accumulated Other Comprehensive Income (Loss)
|  | Years Ended |
|  | Foreign Currency Translations |  |  | Defined Benefit Pension Plans |  |  | Unrealized Income (Loss) on Investment |  |  | Accumulated Other Comprehensive Income |
Balance as of December 31, 2016 |  | $ | (5,817 | ) |  | $ | (227 | ) |  | $ | (2 | ) |  | $ | (6,046 | )
Current period change |  |  | 4,170 |  |  |  | (160 | ) |  |  | (88 | ) |  |  | 3,922 |
Balance as of December 30, 2017 |  |  | (1,647 | ) |  |  | (387 | ) |  |  | (90 | ) |  |  | (2,124 | )
Current period change |  |  | (482 | ) |  |  | (259 | ) |  |  | 308 |  |  |  | (433 | )
Balance as of December 30, 2018 |  | $ | (2,129 | ) |  | $ | (646 | ) |  | $ | 218 |  |  | $ | (2,557 | )

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- Definition Tabular disclosure of condensed balance sheet, including, but not limited to, balance sheets of consolidated entities and consolidation eliminations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 3 -Paragraph i -Subsection 10 + Details
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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669686-108580 + Details
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