Segment Reporting: Schedule of Segment Reporting by Segment (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Net sales	$ 8,050,931	$ 9,023,398	$ 16,780,656	$ 18,221,094
Depreciation			612,107	640,848
Accounts receivable - Less allowances of $146,000 and $160,000, respectively	5,904,401		5,904,401		$ 4,975,137
Inventories, net	9,423,243		9,423,243		9,121,230
Net property, plant and equipment	12,009,934		12,009,934		$ 11,861,793
Fastener
Net sales	7,361,113	8,059,612	15,217,926	16,213,445
Depreciation	272,679	281,841	545,315	563,682
Segment operating profit	(1,093,218)	499,531	(1,521,719)	1,335,038
Selling and Administrative Expenses	0	0	0	0
Interest income	0	0	0	0
Capital expenditures	406,629	22,682	742,695	178,346
Accounts receivable - Less allowances of $146,000 and $160,000, respectively	5,543,477	6,330,240	5,543,477	6,330,240
Inventories, net	7,940,159	8,341,612	7,940,159	8,341,612
Net property, plant and equipment	9,759,709	9,396,988	9,759,709	9,396,988
Other Assets	0	0	0	0
Assembly Equipment
Net sales	689,818	963,786	1,562,730	2,007,649
Depreciation	30,732	33,363	61,464	66,726
Segment operating profit	87,166	191,011	276,481	423,390
Selling and Administrative Expenses	0	0	0	0
Interest income	0	0	0	0
Capital expenditures	0	0	0	0
Accounts receivable - Less allowances of $146,000 and $160,000, respectively	360,924	511,987	360,924	511,987
Inventories, net	1,483,084	1,273,761	1,483,084	1,273,761
Net property, plant and equipment	1,242,033	1,367,179	1,242,033	1,367,179
Other Assets	0	0	0	0
Unallocated Corporate
Net sales	0	0	0	0
Depreciation	2,664	5,220	5,328	10,440
Segment operating profit	0	0	0	0
Selling and Administrative Expenses	(681,199)	(497,736)	(1,219,736)	(997,064)
Interest income	21,745	2,098	62,331	3,853
Capital expenditures	(59,800)	68,427	17,553	33,357
Accounts receivable - Less allowances of $146,000 and $160,000, respectively	0	0	0	0
Inventories, net	0	0	0	0
Net property, plant and equipment	1,008,192	1,260,552	1,008,192	1,260,552
Other Assets	$ 4,625,285	$ 4,028,553	$ 4,625,285	$ 4,028,553