Statements of Operations and Comprehensive Income - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Engineering [Member]
Expenses:
Engineering	$ 1,551,449	$ 1,262,852
Contract revenues	7,360,204	5,527,153
Cost of sales	3,585,127	2,683,298
Gross margin	3,775,077	2,843,855
Engineering	68,018	5,388
General and administrative	1,425,242	1,114,416
Total expenses	2,976,691	2,377,268
Income from operations	798,386	466,587
Other income:
Interest	3,098	411
Net income before income taxes	801,484	466,998
Income tax expense (benefit)	339,948	(66,430)
Net income and comprehensive income	$ 461,536	$ 533,428
Basic income per common share (in dollars per share)	$ 0.01	$ 0.02
Basic weighted average number of shares outstanding (in shares)	32,020,575	31,906,572
Diluted income per common share $ 0.01 (in dollars per share)	$ 0.01	$ 0.02
Diluted weighted average number of shares outstanding (in shares)	35,607,874	35,512,585