CONSOLIDATED BALANCE SHEETS - USD ($)	Jun. 30, 2025	Jun. 30, 2024
Current assets:
Cash and cash equivalents	$ 2,807,797	$ 2,837,081
Short term investments	12,879,882	12,104,459
Accounts receivable, less allowance for credit losses of $2,043 and $1,922, respectively	1,135,672	1,208,319
Inventories	4,885,067	4,473,680
Prepaid expenses and other current assets	738,330	1,081,437
Interest receivable	121,178	170,429
Income taxes receivable	36,179	41,756
Total current assets	22,604,105	21,917,161
Equipment and leasehold improvements, net	1,476,898	1,223,391
Other assets:
Long term investments	4,000,774	4,994,327
Operating lease right-of-use asset	2,518,088	2,765,445
Cash surrender value of life insurance	6,584,744	6,299,155
Total other assets	13,103,606	14,058,927
Total assets	37,184,609	37,199,479
Current liabilities:
Accounts payable	819,330	329,829
Accrued liabilities	582,140	462,858
Deferred revenue	242,644	229,384
Operating lease liability	252,579	239,688
Income taxes payable	42,958	35,899
Total current liabilities	1,939,651	1,297,658
Long-term liabilities:
Deferred compensation	2,226,454	2,093,124
Deferred revenue	119,314	119,787
Operating lease liability	2,289,155	2,541,734
Total long-term liabilities	4,634,923	4,754,645
Total liabilities	6,574,574	6,052,303
Stockholders' equity:
Common stock, $0.005 par value, authorized 20,000,000 shares; issued and outstanding 9,456,438 and 9,299,795, respectively	47,282	46,499
Paid in capital	13,741,384	13,404,477
Retained earnings	16,821,369	17,696,200
Total stockholders' equity	30,610,035	31,147,176
Total liabilities and stockholders' equity	$ 37,184,609	$ 37,199,479