Balance Sheets (Current Period Unaudited) - USD ($)	Sep. 30, 2024	Dec. 31, 2023
Cash and cash equivalents	$ 2,441,916	$ 8,243,122
Marketable securities	7,054,469	851,318
Accounts receivable, net of allowance for credit losses of $24,321 at March 31, 2024 and $16,672 at December 31, 2023	1,494,167	1,566,839
Inventories (net)	1,191,394	1,223,506
Prepaid expenses and other current assets	138,384	191,708
Prepaid income taxes	164,309	176,220
Total current assets	12,484,639	12,252,713
Deferred income taxes	102,193	50,930
Net property, plant, and equipment:
Land	69,000	69,000
Factory equipment and fixtures	4,703,312	4,669,936
Building and improvements	3,061,105	2,976,577
Total property, plant, and equipment	7,833,417	7,715,513
Less: Accumulated depreciation	7,165,869	7,096,318
Total property, plant, and equipment (net)	667,548	619,195
TOTAL ASSETS	13,254,380	12,922,838
Accounts payable	513,204	134,449
Accrued expenses	1,340,501	1,363,044
Deferred revenue	0	15,498
Dividends payable	21,533	21,265
Total current liabilities	1,875,238	1,534,256
Total liabilities	1,875,238	1,534,256
Commitments and Contingencies
Stockholders’ equity:
Common stock $.10 par value; 10,000,000 shares authorized; 4,594,319 shares issued and outstanding at March 31, 2024 and December 31, 2023	459,432	459,432
Retained earnings	10,919,710	10,929,150
Total stockholders’ equity	11,379,142	11,388,582
TOTAL LIABILITIES AND STOCKHOLDERS’ EQUITY	$ 13,254,380	$ 12,922,838