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Balance Sheet Components (Tables) | 12 Months Ended
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Dec. 28, 2019
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Schedule of Short-Term Marketable Securities | The following table summarizes the maturities of our formerly-held Short-term marketable securities at fair value.
(In thousands) | December 28, 2019 |  | December 29, 2018
Short-term marketable securities: |  |  |
Maturing within one year | $ | — |  |  | $ | 7,454 |
Maturing between one and two years | — |  |  | 2,170 |
Total marketable securities | $ | — |  |  | $ | 9,624 |
Schedule of Accounts Receivable |
(In thousands) | December 28, 2019 |  | December 29, 2018
Accounts receivable | $ | 65,023 |  |  | $ | 61,087 |
Less: Allowance for doubtful accounts | (106 | ) |  | (197 | )
Accounts receivable, net of allowance for doubtful accounts | $ | 64,917 |  |  | $ | 60,890 |
Schedule of Allowance for Doubtful Accounts | The following table displays the activity related to changes in our allowance for doubtful accounts:
Fiscal Years Ended (In thousands) |  | Balance at beginning of period |  | Charged (Credit) to costs and expenses |  | Charged (credit) to other accounts |  | Settlements & write-offs net of recoveries |  | Balance at end of period
Allowance for doubtful accounts |  |  |  |  |  |  |  |  |  |
December 28, 2019 |  | $ | 197 |  |  | $ | (30 | ) |  | $ | (12 | ) |  | $ | (49 | ) |  | $ | 106 |
December 29, 2018 |  | $ | 9,371 |  |  | $ | 1 |  |  | $ | 73 |  |  | $ | (9,248 | ) |  | $ | 197 |
December 30, 2017 |  | $ | 9,299 |  |  | $ | 3 |  |  | $ | 38 |  |  | $ | 31 |  |  | $ | 9,371 |
The following table displays the activity related to changes in our valuation allowance for deferred tax assets:
Fiscal Years Ended (In thousands) |  | Balance at beginning of period |  | Charged (Credit) to costs and expenses |  | Charged (credit) to other accounts |  | Balance at end of period
Valuation allowance for deferred tax assets |  |  |  |  |  |  |  |
December 28, 2019 |  | $ | 207,108 |  |  | $ | (8,609 | ) |  | $ | — |  |  | $ | 198,499 |
December 29, 2018 |  | $ | 209,691 |  |  | $ | (2,583 | ) |  | $ | — |  |  | $ | 207,108 |
December 30, 2017 |  | $ | 260,687 |  |  | $ | (50,960 | ) |  | $ | (36 | ) |  | $ | 209,691 |
Schedule of Inventories |
(In thousands) | December 28, 2019 |  | December 29, 2018
Work in progress | $ | 39,855 |  |  | $ | 47,224 |
Finished goods | 15,125 |  |  | 19,872 |
Total inventories | $ | 54,980 |  |  | $ | 67,096 |
Schedule of Accounts Payable and Accrued Expenses | Included in Accounts payable and accrued expenses in the Consolidated Balance Sheets are the following balances:
(In thousands) | December 28, 2019 |  | December 29, 2018
Trade accounts payable | $ | 44,350 |  |  | $ | 31,880 |
Liability for non-cancelable contracts | 6,964 |  |  | 6,078 |
Restructuring | 3,060 |  |  | 4,220 |
Other accrued expenses | 5,881 |  |  | 9,585 |
Total accounts payable and accrued expenses | $ | 60,255 |  |  | $ | 51,763 |

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- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3,4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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