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Schedule of Quarterly Financial Information (Details) - USD ($)
 3 Months Ended 12 Months Ended
Dec. 26, 2020
Sep. 26, 2020
Jun. 27, 2020
Mar. 28, 2020
Dec. 28, 2019
Sep. 28, 2019
Jun. 29, 2019
 [1]
Mar. 30, 2019
Dec. 26, 2020
Dec. 28, 2019
Dec. 29, 2018
Quarterly Financial Information Disclosure [Abstract]                      
Revenue $ 13,922,000 $ 9,513,000 $ 8,815,000 $ 7,878,000 $ 8,727,000 $ 6,139,000 $ 9,110,000 $ 5,543,000 $ 40,128,000 $ 29,519,000 $ 24,465,000
Gross profit 3,295,000 [2] 1,662,000 [2] 1,891,000 [2] 271,000 [2] 1,188,000 [3] 265,000 [3] (808,000) [3] (1,263,000) [3]      
(Loss) income from operations 981,000 (1,108,000) (1,095,000) (3,541,000) (3,556,000) (6,402,000) (4,838,000) (11,584,000)      
Net (loss) income attributable to the controlling interest $ 1,263,000 $ (957,000) $ (1,122,000) $ (3,596,000) $ (7,290,000) $ (6,625,000) $ (4,260,000) $ (11,331,000) $ (4,411,112) $ (29,506,252) $ (34,533,542)
Net (loss) income per share basic [4] $ 0.02 $ (0.01) $ (0.01) $ (0.04)              
Net (loss) income per share diluted [4] $ 0.02 $ (0.01) $ (0.01) $ (0.04)              
Weighted average number of common shares outstanding basic 81,689 82,596 82,569 82,536              
Weighted average number of common shares outstanding diluted 82,196 82,596 82,569 82,536              
Net loss per share basic and diluted         $ (0.09) [5] $ (0.08) [5] $ (0.05) [5] $ (0.15) [5] $ (0.05) $ (0.37) $ (0.47)
Weighted average number of common shares outstanding basic and diluted         82,155 82,054 81,950 74,969 82,347,741 80,282,126 73,156,545
[1] Includes $3.5 million revenue from licensing functional IP for the three month period ended June 29, 2019.
[2] Gross profit is defined as net product revenues less cost of product revenues.
[3] Gross profit is defined as net product revenues less cost of product revenues.
[4] 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.
[5] 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.