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Financial Statement Components | 12 Months Ended
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Dec. 30, 2017
Organization Consolidation And Presentation Of Financial Statements [Abstract] |
Financial Statement Components | Note 6. Financial Statement Components The following tables provide details of selected financial statement components as of the following dates (in thousands):
|  | At |
|  | December 30, 2017 |  |  | December 31, 2016 |
Inventories: |  |  |  |  |  |  |  |
Raw materials and sub-assemblies |  | $ | 32,187 |  |  | $ | 23,506 |
Work in process |  |  | 13,498 |  |  |  | 10,347 |
Finished goods |  |  | 7,175 |  |  |  | 4,984 |
Inventories |  |  | 52,860 |  |  |  | 38,837 |
Inventories-delivered systems |  |  | 1,534 |  |  |  | 2,457 |
Total inventories |  | $ | 54,394 |  |  | $ | 41,294 |
Property, plant and equipment, net:(1) |  |  |  |  |  |  |  |
Land |  | $ | 15,573 |  |  | $ | 15,568 |
Building and improvements |  |  | 20,880 |  |  |  | 20,532 |
Machinery and equipment |  |  | 36,380 |  |  |  | 35,659 |
Furniture and fixtures |  |  | 2,420 |  |  |  | 2,282 |
Software |  |  | 9,558 |  |  |  | 9,756 |
Capital in progress |  |  | 4,418 |  |  |  | 2,748 |
Total property, plant and equipment, gross |  |  | 89,229 |  |  |  | 86,545 |
Accumulated depreciation and amortization |  |  | (44,419 | ) |  |  | (42,319 | )
Total property, plant and equipment, net |  | $ | 44,810 |  |  | $ | 44,226 |
(1) Total depreciation and amortization expense for the years ended December 30, 2017, December 31, 2016 and December 26, 2015 was $6.7 million, $6.8 million, and $6.9 million, respectively. |
Other Current Liabilities: |  |  |  |  |  |  |  |
Accrued warranty |  | $ | 4,863 |  |  | $ | 3,838 |
Accrued taxes |  |  | 813 |  |  |  | 706 |
Customer deposits |  |  | — |  |  |  | 581 |
Accrued professional services |  |  | 534 |  |  |  | 424 |
Accrued royalties |  |  | — |  |  |  | 1,233 |
Other |  |  | 1,039 |  |  |  | 1,265 |
Total other current liabilities |  | $ | 7,249 |  |  | $ | 8,047 |
Components of Accumulated Other Comprehensive Income (Loss)
|  | Foreign Currency Translations |  |  | Defined Benefit Pension Plans |  |  | Unrealized Income (Loss) on Investment |  |  | Accumulated Other Comprehensive Income |
Balance as of December 26, 2015 |  | $ | (4,948 | ) |  | $ | (210 | ) |  | $ | (44 | ) |  | $ | (5,202 | )
Current period change |  |  | (869 | ) |  |  | (17 | ) |  |  | 42 |  |  |  | (844 | )
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 | )
The items above, except for unrealized income (loss) on investment, did not impact the Company’s income tax provision. The amounts reclassified from each component of accumulated other comprehensive income into income statement line items were insignificant.

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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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -URI http://asc.fasb.org/topic&trid=2122208 + Details
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