Segment Reporting: Schedule of Segment Reporting by Segment (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021
Net sales	$ 8,567,785	$ 8,555,731	$ 26,788,879	$ 26,225,070
Depreciation			960,139	990,983
Gain on sale of property	4,738,394	0	4,738,394	0
Accounts receivable - Less allowances of $162,000 and $170,000, respectively	6,578,114		6,578,114		$ 5,647,984
Inventories, net	9,921,472		9,921,472		8,519,780
Net property, plant and equipment	11,907,654		11,907,654		$ 12,473,864
Fastener
Net sales	7,805,622	7,552,619	24,019,067	22,843,341
Depreciation	281,842	291,512	845,524	847,037
Segment operating profit	350,536	480,288	1,685,574	1,982,084
Selling and Administrative Expenses	0	0	0	0
Gain on sale of property	0		0
Interest income	0	0	0	0
Capital expenditures	462,445	77,007	597,991	410,281
Accounts receivable - Less allowances of $162,000 and $170,000, respectively	6,185,810	5,623,045	6,185,810	5,623,045
Inventories, net	8,549,836	6,553,617	8,549,836	6,553,617
Net property, plant and equipment	9,575,293	9,986,600	9,575,293	9,986,600
Other Assets	0	0	0	0
Assembly Equipment
Net sales	762,163	1,003,112	2,769,812	3,381,729
Depreciation	33,363	33,534	100,089	100,600
Segment operating profit	92,977	215,869	516,367	852,571
Selling and Administrative Expenses	0	0	0	0
Gain on sale of property	0		0
Interest income	0	0	0	0
Capital expenditures	0	0	0	0
Accounts receivable - Less allowances of $162,000 and $170,000, respectively	392,304	451,698	392,304	451,698
Inventories, net	1,371,636	1,191,653	1,371,636	1,191,653
Net property, plant and equipment	1,333,816	1,468,262	1,333,816	1,468,262
Other Assets	0	0	0	0
Unallocated Corporate
Net sales	0	0	0	0
Depreciation	4,086	5,448	14,526	16,346
Segment operating profit	0	0	0	0
Selling and Administrative Expenses	(565,740)	(491,547)	(1,562,804)	(1,547,845)
Gain on sale of property	4,738,394		4,738,394
Interest income	4,893	3,049	8,746	17,484
Capital expenditures	21,925	165,395	98,082	177,334
Accounts receivable - Less allowances of $162,000 and $170,000, respectively	0	0	0	0
Inventories, net	0	0	0	0
Net property, plant and equipment	998,545	1,263,290	998,545	1,263,290
Other Assets	$ 8,491,734	$ 6,093,884	$ 8,491,734	$ 6,093,884