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Condensed Balance Sheets - USD ($)
Sep. 30, 2025
Mar. 31, 2025
Current assets:    
Cash $ 71,731 $ 257,433
Accounts receivable 761,947 786,471
Inventories 1,468,863 1,483,182
Prepaid expenses 144,331 85,679
Total current assets 2,446,872 2,612,765
Equipment:    
Furniture, fixtures and equipment, at cost 2,628,661 2,585,446
Accumulated depreciation (2,378,645) (2,340,689)
Equipment, net 250,016 244,757
Right of use asset 1,116,454 568,395
Patents, net 161,427 171,890
Other assets 81,990 72,892
TOTAL ASSETS 4,056,759 3,670,699
Current liabilities:    
Accounts payable 314,815 346,900
Line of credit 31,706 395,964
Secured notes 35,202 44,128
Accrued compensation 199,657 180,850
Deferred Revenue 0 17,401
Other accrued liabilities 147,019 160,274
Accrued lease liability 343,172 430,398
Total current liabilities 1,071,571 1,575,915
Long-term liabilities:    
Secured notes 162,249 177,470
Accrued lease liability 958,152 266,212
Total liabilities 2,191,972 2,019,597
Commitments and contingencies (Note 4)  
Shareholders’ equity:    
Preferred stock, no par value: 10,000,000 shares authorized; none issued and outstanding 0 0
Common stock and additional paid-in capital, no par value: 100,000,000 shares authorized; 16,879,645 and 11,879,645 issued and outstanding at September 30, 2025, and March 31, 2025, respectively 24,938,998 24,416,347
Accumulated (deficit) (23,074,211) (22,765,245)
Total shareholders’ equity 1,864,787 1,651,102
TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY $ 4,056,759 $ 3,670,699