Schedule of Stock-based Compensation Expense (Details) - USD ($)	12 Months Ended
Dec. 26, 2020	Dec. 28, 2019	Dec. 29, 2018
Share-based Payment Arrangement, Expense	$ 821,122	$ 2,057,400	$ 4,791,054
Cost of Product Revenues [Member]
Share-based Payment Arrangement, Expense	113,517	102,629	418,605
Research and Development [Member]
Share-based Payment Arrangement, Expense	204,599	295,872	725,112
Selling, General and Administrative [Member]
Share-based Payment Arrangement, Expense	$ 503,006	$ 1,658,899	$ 3,647,337

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5047-113901

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section S99
-Paragraph 1
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
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-Subparagraph (h)(1)(i)
-URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901

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