v3.26.1
Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)
 6 Months Ended
Jun. 27, 2026
Jun. 28, 2025
Cash flows from operating activities:    
Net loss $ (2,921,167) $ (8,280,166)
Adjustments to reconcile net income (loss) to net cash used in operating activities:    
Depreciation and amortization 431,111 444,861
Stock-based compensation 1,468,849 1,522,109
Loss on sale of property and equipment 58,818
Non-cash (gain) loss on equity investments (5,294,135) 24,000
Gain on sale of equity investment (300,000)
Income taxes (2,128,669) 104,455
Foreign currency gains (1,052) (113,183)
Provision for bad debt 13,100
Noncash provision for excess inventory 131,978 754,138
Changes in assets and liabilities:    
Accounts receivable (15,359) 2,333,500
Contract assets 1,185,058 241,431
Grant Income Receivable (401,614)
Inventory 648,585 (1,200,455)
Prepaid expenses and other current assets (939,279) (619,672)
Other receivable 551,239
Accounts payable and accrued expenses 875,518 (2,173,477)
Accrued warranty (1,112,846) (541,259)
Contract liabilities 5,054,808 172,130
Deferred collaboration arrangement income
Deferred grant income (2,688,627)
Net cash used in operating activities (5,142,502) (7,572,770)
Cash flows from investing activities:    
Proceeds from sale of marketable securities 33,960,226
Proceeds from sale of equity investment 300,000
Capital expenditures (5,111,818) (1,233,751)
Purchases of marketable securities (15,156,585)
Other assets (2,483)
Net cash provided by (used in) investing activities (5,111,818) 17,867,407
Cash flows from financing activities:    
Settlements of restricted stock for tax withholding obligations (1,070,712) (89,657)
Conversion of preferred stock (28,240)
Exercise of prefunded warrant 3,840
Net cash provided by financing activities (1,095,112) (89,657)
Effect of exchange rate changes on cash 1,055 4,210
Net change in cash, cash equivalents and restricted cash (11,348,377) 10,209,190
Cash, cash equivalents and restricted cash at beginning of year 61,627,146 15,210,120
Cash, cash equivalents and restricted cash at end of year $ 50,278,769 $ 25,419,310