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Segment Information - Schedule of Segment Reporting by Segment (Details) - USD ($)
 3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Dec. 31, 2024
Segment Reporting Information [Line Items]          
Net sales $ 7,360,284 $ 6,969,921 $ 21,903,997 $ 22,882,579  
Cost of Goods Sold 6,030,788 6,274,934 17,941,697 20,027,584  
Gross Profit 1,329,496 694,987 3,962,300 2,854,995  
Selling and engineering expenses 270,137 264,630 802,035 821,453  
Administrative expenses 994,789 1,253,928 3,442,952 3,652,857  
Operating income (loss) 64,570 (823,571) (282,687) (1,619,315)  
Other income 2,711 28,146 356,302 [1] 102,570  
Income (loss) before income taxes 67,281 (795,425) 73,615 (1,516,745)  
Depreciation 298,463 324,536 920,228 969,958  
Capital expenditures 145,915 310,732 239,618 709,396  
Accounts receivable, net 4,849,224 4,606,800 4,849,224 4,606,800 $ 3,094,911
Inventories, net 6,349,195 7,404,782 6,349,195 7,404,782 6,496,170
Property, Plant and Equipment, net 10,049,017 11,345,054 10,049,017 11,345,054 10,735,139
Other Assets 2,780,814 3,034,879 2,780,814 3,034,879  
Total assets 24,028,250 26,391,515 24,028,250 26,391,515 $ 23,370,174
Fastener          
Segment Reporting Information [Line Items]          
Net sales 6,433,949 5,927,316 18,990,136 19,560,720  
Cost of Goods Sold 5,555,772 5,231,973 16,461,131 17,423,963  
Gross Profit 878,177 695,342 2,529,005 2,136,756  
Selling and engineering expenses 60,848 82,650 205,680 278,376  
Administrative expenses 444,392 518,875 1,384,588 1,663,190  
Operating income (loss) 372,937 93,817 938,737 195,190  
Other income 35 38,806 35 [1] 38,806  
Income (loss) before income taxes 372,972 132,623 938,772 233,996  
Depreciation 277,035 305,612 843,942 890,986  
Capital expenditures 145,915 307,773 239,618 427,001  
Accounts receivable, net 4,178,673 4,046,025 4,178,673 4,046,025  
Inventories, net 4,585,904 6,032,338 4,585,904 6,032,338  
Property, Plant and Equipment, net 8,824,759 9,772,397 8,824,759 9,772,397  
Other Assets 0 0 0 0  
Assembly Equipment          
Segment Reporting Information [Line Items]          
Net sales 926,335 1,042,605 2,913,861 3,321,859  
Cost of Goods Sold 475,016 1,042,961 1,480,566 2,603,621  
Gross Profit 451,319 (355) 1,433,295 718,239  
Selling and engineering expenses 3,520 4,769 19,521 5,837  
Administrative expenses 2,352 104,158 13,398 137,229  
Operating income (loss) 445,447 (109,282) 1,400,376 575,173  
Other income 473 2 339,992 [1] 2  
Income (loss) before income taxes 445,920 (109,280) 1,740,368 575,175  
Depreciation 21,428 18,384 76,286 77,352  
Capital expenditures 0 2,959 0 282,395  
Accounts receivable, net 670,551 560,775 670,551 560,775  
Inventories, net 1,763,291 1,372,444 1,763,291 1,372,444  
Property, Plant and Equipment, net 1,224,258 1,572,657 1,224,258 1,572,657  
Other Assets 10,460 19,907 10,460 19,907  
Unallocated Corporate          
Segment Reporting Information [Line Items]          
Net sales 0 0 0 0  
Cost of Goods Sold 0 0 0 (0)  
Gross Profit 0 0 0 0  
Selling and engineering expenses 205,769 177,211 576,834 537,240  
Administrative expenses 548,045 630,895 2,044,966 1,852,438  
Operating income (loss) (753,814) (808,106) (2,621,800) (2,389,678)  
Other income 2,203 (10,662) 16,275 [1] 63,762  
Income (loss) before income taxes (751,611) (818,768) (2,605,525) (2,325,916)  
Depreciation 0 540 0 1,620  
Capital expenditures 0 0 0  
Accounts receivable, net 0 0 0 0  
Inventories, net 0 0 0 0  
Property, Plant and Equipment, net 0 0 0 0  
Other Assets 2,770,354 3,014,972 2,770,354 3,014,972  
Operating Segments          
Segment Reporting Information [Line Items]          
Net sales 7,325,208 6,977,426 21,920,583 22,914,184  
Operating Segments | Fastener          
Segment Reporting Information [Line Items]          
Net sales 6,398,873 5,934,820 19,006,722 19,592,324  
Operating Segments | Assembly Equipment          
Segment Reporting Information [Line Items]          
Net sales 926,335 1,042,605 2,913,861 3,321,859  
Operating Segments | Unallocated Corporate          
Segment Reporting Information [Line Items]          
Net sales 0 0 0 0  
Intercompany Sales          
Segment Reporting Information [Line Items]          
Net sales 35,076 (7,505) (16,586) (31,605)  
Intercompany Sales | Fastener          
Segment Reporting Information [Line Items]          
Net sales 35,076 (7,505) (16,586) (31,605)  
Intercompany Sales | Assembly Equipment          
Segment Reporting Information [Line Items]          
Net sales 0 0 0 0  
Intercompany Sales | Unallocated Corporate          
Segment Reporting Information [Line Items]          
Net sales $ 0 $ 0 $ 0 $ 0  
[1] Includes a one-time gain of $339,520 in the Assembly Equipment segment, from the sale of the Albia manufacturing facility in February 2025.