Condensed Consolidated Balance Sheets (unaudited) - USD ($)	Jun. 30, 2025	Dec. 31, 2024
Current assets:
Cash and cash equivalents	$ 1,213,830	$ 1,922,679
Short-term investments	0	247,276
Accounts receivable - less allowances of $138,738 and $197,536	4,840,856	3,094,911
Contract assets	19,907	48,811
Inventories, net	6,440,210	6,496,170
Assets held for sale	0	348,400
Income taxes receivable	25,973	1,378
Other current assets	434,810	431,440
Total current assets	12,975,586	12,591,065
Property, plant and equipment, net	10,207,093	10,735,139
Operating lease right-of-use asset, net	413,683
Deposits with vendors	43,970	43,970
Total assets	23,640,332	23,370,174
Current liabilities:
Accounts payable	847,130	1,233,147
Accrued wages and salaries	539,873	436,417
Other accrued expenses	253,271	284,497
Unearned revenue and customer deposits	179,669	265,789
Federal and state income taxes	3,032
Current portion of operating lease liability	93,533
Total current liabilities	1,916,508	2,219,850
Note payable	500,000
Deferred income taxes, net	237,872	237,872
Operating lease liability	345,475
Other long-term liabilities	659,951	880,000
Total liabilities	3,659,806	3,337,722
Commitments and contingencies (Note 3)
Shareholders' Equity
Preferred stock, no par value, 500,000 shares authorized: none outstanding
Common stock, $1.00 par value, 4,000,000 shares authorized, 1,138,096 shares issued; 966,132 shares outstanding as of June 30, 2025 and December 31, 2024	1,138,096	1,138,096
Additional paid-in capital	447,134	447,134
Retained earnings	22,317,394	22,369,320
Treasury stock, 171,964 shares at cost	(3,922,098)	(3,922,098)
Total shareholders' equity	19,980,526	20,032,452
Total liabilities and shareholders' equity	$ 23,640,332	$ 23,370,174