v3.26.3
Consolidated Balance Sheets (Current Period Unaudited) - USD ($)
$ in Thousands
Sep. 30, 2026
Dec. 31, 2025
Current assets:    
Cash and cash equivalents $ 9,021 $ 7,164
Investments in debt securities- short term 5,457 4,917
Trade accounts receivable, net 40 91
Inventories 0 46
Prepaid expenses and other current assets 675 1,302
Total current assets 15,193 13,520
Investments in debt securities- long term 3,929 7,606
Property and equipment, net 7,135 7,050
Patents and trademarks, net 11 21
Other Assets 77 108
Operating lease right-of-use asset 0 809
Total assets 26,345 29,114
Current liabilities:    
Accounts payable 431 152
Accrued liabilities 293 165
Other current liabilities 902 902
Operating lease liability — current 0 309
Total current liabilities 1,626 1,528
Operating lease liability — noncurrent 0 500
Total liabilities 1,626 2,028
Commitment and Contingencies
Stockholders' equity:    
Common stock, $0.001 par value; 1,100,000,000 shares authorized; 918,552,990 and 917,285,149 shares issued and outstanding at September 30, 2026 and December 31, 2025, respectively 919 917
Warrants 18,179 18,179
Additional paid-in capital 288,523 288,420
Accumulated deficit (282,966) (280,594)
Accumulated other comprehensive income 146 245
Non-controlling interest in subsidiary (82) (81)
Total stockholders' equity 24,719 27,086
Total liabilities and stockholders' equity $ 26,345 $ 29,114