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Selected Quarterly Financial Information (Unaudited) (Tables) | 12 Months Ended
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Dec. 26, 2020
Quarterly Financial Information Disclosure [Abstract] |
Schedule of Quarterly Financial Information | Quarterly Periods During Fiscal Year Ended December 26, 2020: Schedule of Quarterly Financial Information
(in thousands, except per share data) |  | Three months ended March 28, 2020 |  |  | Three months ended June 27, 2020 |  |  | Three months ended September 26, 2020 |  |  | Three months ended December 26, 2020 |
Total revenue |  | $ | 7,878 |  |  | $ | 8,815 |  |  | $ | 9,513 |  |  | $ | 13,922 |
Gross profit (2) |  |  | 271 |  |  |  | 1,891 |  |  |  | 1,662 |  |  |  | 3,295 |
(Loss) income from operations |  |  | (3,541 | ) |  |  | (1,095 | ) |  |  | (1,108 | ) |  |  | 981 |
Net (loss) income attributable to the controlling interest |  |  | (3,596 | ) |  |  | (1,122 | ) |  |  | (957 | ) |  |  | 1,263 |
Net (loss) income per share (1): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  | $ | (0.04 | ) |  | $ | (0.01 | ) |  | $ | (0.01 | ) |  | $ | 0.02 |
Diluted |  | $ | (0.04 | ) |  | $ | (0.01 | ) |  | $ | (0.01 | ) |  | $ | 0.02 |
Weighted average number of common shares outstanding: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic |  |  | 82,536 |  |  |  | 82,569 |  |  |  | 82,596 |  |  |  | 81,689 |
Diluted |  |  | 82,536 |  |  |  | 82,569 |  |  |  | 82,596 |  |  |  | 82,196 |
(1) | Net loss per share is computed independently for each of the quarters presented; accordingly, the sum of the quarterly net income per share may not equal the total computed for the year.
(2) | Gross profit is defined as net product revenues less cost of product revenues.
Quarterly Periods During Fiscal Year Ended December 28, 2019:
(in thousands, except per share data) |  | Three months ended March 30, 2019 |  |  | Three months ended June 29, 2019(3) |  |  | Three months ended September 28, 2019 |  |  | Three months ended December 28, 2019 |
Total revenue |  | $ | 5,543 |  |  | $ | 9,110 |  |  | $ | 6,139 |  |  | $ | 8,727 |
Gross profit (2) |  |  | (1,263 | ) |  |  | (808 | ) |  |  | 265 |  |  |  | 1,188 |
Loss from operations |  |  | (11,584 | ) |  |  | (4,838 | ) |  |  | (6,402 | ) |  |  | (3,556 | )
Net loss attributable to the controlling interest |  |  | (11,331 | ) |  |  | (4,260 | ) |  |  | (6,625 | ) |  |  | (7,290 | )
Net loss per share (1): |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic and diluted |  | $ | (0.15 | ) |  | $ | (0.05 | ) |  | $ | (0.08 | ) |  | $ | (0.09 | )
Weighted average number of common shares outstanding: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basic and diluted |  |  | 74,969 |  |  |  | 81,950 |  |  |  | 82,054 |  |  |  | 82,155 |
(1) | Net loss per share is computed independently for each of the quarters presented; accordingly, the sum of the quarterly net income per share may not equal the total computed for the year.
(2) | Gross profit is defined as net product revenues less cost of product revenues.
(3) | Includes $3.5 million revenue from licensing functional IP for the three month period ended June 29, 2019.

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- Definition Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=121640914&loc=d3e1280-108306 + Details
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