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Condensed Consolidated Balance Sheets - USD ($)
Jun. 28, 2025
Dec. 28, 2024
Current assets:    
Cash and cash equivalents $ 24,369,310 $ 14,160,120
Restricted cash 1,050,000 1,050,000
Marketable securities, at fair value 2,417,877 21,419,658
Accounts receivable, net of allowance of $1,024,000 and $1,075,000 in 2025 and 2024, respectively 9,481,332 11,850,654
Contract assets 6,840,887 7,074,020
Inventory 6,685,225 6,134,096
Prepaid expenses and other current assets 1,795,521 1,153,852
Total current assets 52,640,152 62,842,400
Property, plant and equipment, net 2,684,545 2,099,708
Operating lease right-of-use assets 2,212,679 2,134,898
Other assets 123,822 123,822
Equity investments 3,523,632 3,564,938
Total assets 61,184,830 70,765,766
Current liabilities:    
Accounts payable 4,129,863 5,941,470
Accrued payroll and expenses 2,345,847 2,409,468
Accrued warranty 2,016,000 2,557,000
Contract liabilities 275,053 87,752
Operating lease liabilities 765,559 639,642
Accrued post-retirement benefits 40,000 40,000
Other accrued liabilities 648,287 685,946
Accrued legal expenses 5,961,506 6,367,900
Deferred tax liabilities 447,498 414,118
Accrued litigation damages 24,800,000 24,800,000
Total current liabilities 41,429,613 43,943,296
Noncurrent contract liabilities and asset retirement obligations 388,240 358,292
Operating lease liabilities, net of current portion 1,436,276 1,479,976
Accrued post-retirement benefits, net of current portion 190,646 230,646
Other long-term liabilities, net of current portion 1,700,221 1,471,994
Total liabilities 45,144,996 47,484,204
Commitments and contingencies (Note 13) and Litigation (Note 14)
Stockholders’ equity:    
Preferred stock, par value $.01 per share: authorized, 3,000 shares; no shares issued and outstanding as of 2025 and 2024
Common stock, par value $.01 per share: authorized, 275,000,000 shares in 2025 and 200,000,000 shares in 2024; issued 163,422,995 shares in 2025 and 161,264,507 shares in 2024; outstanding 156,589,462 shares in 2025 and 156,118,014 shares in 2024 1,570,086 1,564,308
Additional paid-in capital 423,604,168 422,087,837
Treasury stock (419,279 shares in 2025 and 312,882 shares in 2024, at cost) (459,669) (370,012)
Accumulated other comprehensive income 1,638,345 2,032,359
Accumulated deficit (410,313,096) (402,032,930)
Total stockholders’ equity 16,039,834 23,281,562
Total liabilities and stockholders’ equity $ 61,184,830 $ 70,765,766