Statements of Income (Unaudited) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Contract revenues	$ 1,804,800	$ 1,017,121	$ 4,730,886	$ 4,890,889
Cost of sales	690,901	317,015	1,782,597	1,887,708
Gross margin	1,113,899	700,106	2,948,289	3,003,181
Expenses:
Engineering	577,722	691,337	1,719,499	2,049,425
General and administrative	355,844	349,230	1,145,449	1,182,537
Total expenses	933,566	1,040,567	2,864,948	3,231,962
Income (loss) from operations	180,333	(340,461)	83,341	(228,781)
Other income:
Interest (expense) income, net	(1,514)	898	(117)	3,569
Income (loss) before income taxes	178,819	(339,563)	83,224	(225,212)
Income tax (expense) benefit	(56,265)	130,031	(22,925)	92,764
Net income (loss) available to common shareholders	$ 122,554	$ (209,532)	$ 60,299	$ (132,448)
Income (loss) per common share - basic (in dollars per share)		$ (0.01)
Basic weighted average number of shares outstanding (in shares)	35,588,775	35,588,775	35,588,775	35,578,519
Income (loss) per common share - diluted (in dollars per share)		$ (0.01)
Diluted weighted average number of shares outstanding (in shares)	35,588,775	35,588,775	35,588,775	35,578,519