This is because it's responsive and will adapt percentage wise to the available screen space. If you look at your Bootstrap css file here: http://www.blackcoatinnovations.com/wp-content/themes/BootstrapParallax/css/bootstrap-responsive.css, you can set where that responsive trigger should happen.
So you have there @media (min-width: 768px) and (max-width: 979px)
It mean until it reaches the width of 767 (one less than the min width), it's going to squeeze and then as soon as it reaches 767 - go to phone layout. If you set you min-width higher on this line and your max width higher on the next media query, you could get it to snap where you want it to.
There are other ways, but this would be a quick fix.