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Selected Quarterly Financial Information (Unaudited) (Details) - USD ($)
 3 Months Ended 6 Months Ended 12 Months Ended
Dec. 31, 2016
Sep. 24, 2016
Jun. 25, 2016
Mar. 26, 2016
Dec. 26, 2015
Sep. 26, 2015
Jun. 27, 2015
Mar. 28, 2015
Jun. 25, 2016
Jun. 27, 2015
Dec. 31, 2016
Dec. 26, 2015
Dec. 27, 2014
Effect of Fourth Quarter Events [Line Items]                          
Gain/loss attributable to controlling interest, immaterial misstatement     $ 65 $ 15 $ 189 $ 45 $ 98 $ 47          
Income/loss from operations, immaterial misstatement     36 11 52 0 21 12          
Quantifying Misstatement in Current Year Financial Statements, Amount     36 11 52 0 21 12          
Gain (Loss) on Sale of Properties                 $ 7,700,000        
Gain on Sale of Investments                     $ 1,000,000    
Revenues $ 6,373,000 $ 5,795,000 4,355,000 6,119,000 4,612,000 8,001,000 10,857,000 8,585,000     22,642,566 $ 32,054,419 $ 31,807,465
Gross Profit [1] 1,560,000 949,000 (550,000) 1,342,000 (118,000) 1,762,000 3,148,000 1,857,000          
(Loss) income from continuing operations (6,280,000) (6,883,000) (993,000) (6,317,000) (7,906,000) (5,923,000) (5,474,000) (5,933,000)          
Net income (loss) attributable to the controlling interest $ (5,190,000) $ (8,117,000) $ (3,194,000) $ (6,932,000) $ (6,771,000) $ (4,720,000) $ 683,000 $ (3,885,000)     $ (23,434,116) $ (14,693,416) $ (28,212,044)
Net loss per share:                          
Basic (in dollars per share) $ (0.08) [2] $ (0.13) [2] $ (0.05) [2] $ (0.11) [2] $ (0.11) [2] $ (0.07) [2] $ 0.01 [2] $ (0.06) [2]     $ (0.37) $ (0.23) $ (0.45)
Diluted (in dollars per share) $ (0.08) [2] $ (0.13) [2] $ (0.05) [2] $ (0.11) [2] $ (0.11) [2] $ (0.07) [2] $ 0.01 [2] $ (0.06) [2]     $ (0.37) $ (0.23) $ (0.45)
Shares used in computing net income per share:                          
Basic (in shares) 64,138,000 64,048,000 64,011,000 63,978,000 63,608,000 63,068,000 63,066,000 63,084,000     64,045,675 63,465,797 62,638,675
Diluted (in shares) 64,138,000 64,048,000 64,011,000 63,978,000 63,608,000 63,068,000 65,030,000 63,084,000     64,045,675 63,465,797 62,638,675
Gain on sales of investments               $ 2,100,000   $ 5,500,000 $ 1,034,396 $ 9,206,919 $ 0
[1] Gross profit is defined as net component revenue less cost of component revenues.
[2] 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.