XML 14 R5.htm IDEA: XBRL DOCUMENT v3.7.0.1
Unaudited Condensed Statements of Comprehensive Income - USD ($)
3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Statements of Other Comprehensive Income [Abstract]    
Net income $ 584,242 $ 452,448
Other comprehensive income (loss):    
Interest rate swaps, before taxes 15,735 (101,678)
Income tax applicable to interest rate swaps (5,665) 36,604
Other comprehensive income (loss), net of taxes 10,070 (65,074)
Total comprehensive income $ 594,312 $ 387,374