Schedule of Segment Reporting Information, by Segment | Fastener Assembly Equipment Other Consolidated Three Months Ended September 30, 2017: Net sales $ 7,486,193 $ 900,563 0 $ 8,386,756 Depreciation 275,820 24,390 8,970 309,180 Segment operating profit 768,247 317,602 0 1,085,849 Selling and administrative expenses 0 0 (603,809) (603,809) Interest income 0 0 18,795 18,795 Income before income taxes $ 500,835 Capital expenditures 263,563 8,325 0 271,888 Segment assets: Accounts receivable, net 5,576,022 295,070 0 5,871,092 Inventories, net 4,134,219 953,898 0 5,088,117 Property, plant and equipment, net 10,409,913 1,613,245 576,099 12,599,257 Other assets 0 0 8,452,225 8,452,225 $ 32,010,691 Three Months Ended September 30, 2016: Net sales $ 8,089,800 $ 764,474 0 $ 8,854,274 Depreciation 272,212 22,063 17,640 311,915 Segment operating profit 1,031,736 233,758 0 1,265,494 Selling and administrative expenses 0 0 (596,358) (596,358) Interest income 0 0 10,193 10,193 Income before income taxes $ 679,329 Capital expenditures 842,048 2,142 0 844,190 Segment assets: Accounts receivable, net 5,611,689 284,597 0 5,896,286 Inventories, net 3,766,136 1,038,158 0 4,804,294 Property, plant and equipment, net 10,457,807 1,594,023 508,767 12,560,597 Other assets 0 0 8,183,787 8,183,787 $ 31,444,964 Nine Months Ended September 30, 2017: Net sales $ 24,319,725 $ 2,985,866 0 $ 27,305,591 Depreciation 822,267 73,170 26,910 922,347 Segment operating profit 2,716,020 1,089,089 0 3,805,109 Selling and administrative expenses 0 0 (1,911,509) (1,911,509) Interest income 0 0 49,512 49,512 Income before income taxes $ 1,943,112 Capital expenditures 949,333 121,713 0 1,071,046 Nine Months Ended September 30, 2016: Net sales $ 25,395,165 $ 2,876,234 0 $ 28,271,399 Depreciation 801,485 65,677 52,230 919,392 Segment operating profit 3,745,167 1,012,532 0 4,757,699 Selling and administrative expenses 0 0 (1,948,769) (1,948,769) Interest income 0 0 28,515 28,515 Income before income taxes $ 2,837,445 Capital expenditures 1,550,070 190,690 42,126 1,782,886 |