Condensed Statements of Income and Comprehensive Income (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Contract Revenues	$ 1,893,945	$ 1,551,620	$ 6,626,716	$ 5,047,456
Cost of sales	776,493	636,128	3,055,932	1,909,246
Gross margin	1,117,452	915,492	3,570,784	3,138,210
Expenses:
Engineering	648,739	530,477	1,882,829	1,587,069
General and administrative	413,731	379,407	1,287,668	1,218,694
Total expenses	1,062,470	909,884	3,170,497	2,805,763
Income from operations	54,982	5,608	400,287	332,447
Other income:
Interest	322	701	1,238	2,154
Net income before income taxes	55,304	6,309	401,525	334,601
Income tax expense	18,275	(22,696)	127,364	139,064
Net income available to common shareholders	$ 37,029	$ 29,005	$ 274,161	$ 195,537
Income per common share - basic (in dollars per share)			$ 0.01	$ 0.01
Basic weighted average number of shares outstanding (in shares)	35,568,775	35,555,742	35,308,668	35,246,893
Income per common share - diluted (in dollars per share)			$ 0.01	$ 0.01
Diluted weighted average number of shares outstanding (in shares)	35,876,540	35,862,205	35,594,805	35,524,857