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Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
 3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2023
Apr. 01, 2023
Sep. 28, 2024
Sep. 30, 2023
Dec. 30, 2023
Cash flows from operating activities:          
Net loss $ (2,450,313) $ (2,628,555) $ (41,930,555) $ (13,259,247)  
Adjustments to reconcile net loss to net cash used in operating activities:          
Depreciation and amortization     470,627 498,188  
Stock-based compensation     2,624,292 2,343,782  
Income taxes     125,000 117,316  
Foreign currency losses     (133,002) 27,478  
Provision for credit losses     24,000 726,413  
Noncash provision for excess inventory     1,502,468 292,405  
Investment impairment     1,787,852 2,887,893  
Loss on sale of property and plant     18,878  
Changes in other non-cash items     514,321 194,890  
Changes in assets and liabilities:          
Accounts receivable     1,031,331 (2,137,460)  
Contract assets and unbilled receivables     (5,074,336) (1,651,437)  
Inventory     (390,427) (2,944,672)  
Prepaid expenses, other current assets and other assets     (426,901) (461,365)  
Accounts payable and accrued expenses     3,106,567 1,799,444  
Contract liabilities and billings in excess of revenue earned     (671,790) (244,188)  
Accrued litigation damages     24,800,000  
Net cash used in operating activities     (12,640,553) (11,791,682) $ (15,300,000)
Cash flows from investing activities:          
Capital expenditures     (320,873) (478,282)  
Purchases of marketable securities     (16,875,308) (17,624,779)  
Proceeds from sale of marketable securities     6,915,102 10,374,593  
Other assets     (152,971) 14,656  
Net cash used in investing activities     (10,434,050) (7,713,812)  
Cash flows from financing activities:          
Issuance of common stock, net of costs     7,242,581  
Issuance of common stock and pre-funded warrants, net of costs     25,197,050 21,335,000  
Net cash provided by financing activities     32,439,631 21,335,000  
Effect of exchange rate changes on cash     4,880 11,291  
Net increase in cash, cash equivalents and restricted cash     9,369,908 1,840,797  
Cash, cash equivalents and restricted cash:          
Beginning of period   $ 8,258,878 6,210,685 8,258,878 8,258,878
End of period $ 10,099,675   $ 15,580,593 $ 10,099,675 $ 6,210,685