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Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($)
$ in Thousands
Sep. 30, 2025
Jun. 30, 2025
Current assets    
Cash and cash equivalents $ 2,646 $ 3,100
Short-term investments 11,290 15,108
Accounts receivable 354 485
Contract Asset 0 0
Inventory, net:    
Raw materials 2,342 2,194
Work-in-process 286 425
Finished goods 454 310
Prepaid expenses and other current assets 821 353
Total current assets 18,193 21,975
Property and equipment, net 2,606 2,395
Intangible asset, net 50 48
Operating lease assets 2,044 2,225
Other assets, net 347 346
Total assets 23,240 26,989
Current liabilities    
Accounts payable 613 1,066
Payroll related accruals 534 529
Accrued expenses and other liabilities 328 451
Lease liabilities, current 384 405
Total current liabilities 1,859 2,451
Accrued expenses and other liabilities, net of current portion 134 164
Lease liabilities, net of current portion 2,160 2,274
Total liabilities 4,153 4,889
Commitments and contingencies (Note 14)
Stockholders’ equity    
Convertible preferred stock, $0.001 par value, 2,500,000 shares authorized; 280,898 shares of Series D issued and outstanding at September 30, 2025, and June 30, 2025 0 0
Common stock, $0.001 par value, 250,000,000 shares authorized at September 30, 2025, and June 30, 2025, respectively; 1,769,269 shares issued at September 30, 2025, and June 30, 2025, respectively; 1,758,953 and 1,701,729 shares outstanding at September 30, 2025, and June 30, 2025, respectively 190,643 190,643
Treasury shares, 10,316 at September 30, 2025, and June 30, 2025, respectively (119) (119)
Additional paid-in capital 83,614 83,310
Accumulated deficit (254,335) (250,870)
Accumulated other comprehensive loss (716) (864)
Total stockholders’ equity 19,087 22,100
Total liabilities and stockholders’ equity $ 23,240 $ 26,989