CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($)	Sep. 30, 2025	Jun. 30, 2025
Current assets:
Cash and cash equivalents	$ 2,515,913	$ 2,807,797
Short term investments	13,942,994	12,879,882
Accounts receivable, less allowance for credit losses of $2,043 at September 30, 2025 and June 30, 2025, respectively	963,457	1,135,672
Inventories	4,647,319	4,885,067
Prepaid expenses and other current assets	465,322	738,330
Interest receivable	104,364	121,178
Income taxes receivable	30,297	36,179
Total current assets	22,669,666	22,604,105
Equipment and leasehold improvements, net	1,680,042	1,476,898
Other assets:
Long term investments	4,000,985	4,000,774
Finance lease right-of-use asset	29,073
Operating lease right-of-use asset	2,454,260	2,518,088
Cash surrender value of life insurance	6,829,369	6,584,744
Total other assets	13,313,687	13,103,606
Total assets	37,663,395	37,184,609
Current liabilities:
Accounts payable	978,468	819,330
Accrued liabilities	516,381	582,140
Deferred revenue	247,884	242,644
Finance lease liability	9,957
Operating lease liability	255,909	252,579
Income taxes payable	33,088	42,958
Total current liabilities	2,041,687	1,939,651
Long-term liabilities:
Deferred compensation	2,387,338	2,226,454
Deferred revenue	135,829	119,314
Finance lease liability	19,387
Operating lease liability	2,223,916	2,289,155
Total long-term liabilities	4,766,470	4,634,923
Total liabilities	6,808,157	6,574,574
Stockholders' equity:
Common stock, $0.005 par value, authorized 20,000,000 shares; issued and outstanding 9,456,438 at September 30, 2025 and June 30, 2025, respectively	47,282	47,282
Paid in capital	13,742,858	13,741,384
Retained earnings	17,065,098	16,821,369
Total stockholders' equity	30,855,238	30,610,035
Total liabilities and stockholders' equity	$ 37,663,395	$ 37,184,609