There isn't a clear distinction between concussion and traumatic injuries that cause clear structural damage to the brain tissue such as contusions. There was a historical distinction between concussion ("commotio cerebri") and more obvious structural brain trauma ("contusio cerebri"), but these days, concussion is usually placed on the same spectrum (though at the mildest end) as more severe traumatic brain injuries.
Little's injury would be evaluated both in terms of obvious structural damage (seen on CT/MRI) and his clinical syndrome or symptoms. If he was alert after the injury (he seemed to be), was not amnestic for too long before or after the injury (can't assess that from home), and didn't have any obvious neurological deficits (such as weakness or vision loss -- can't assess that from home, but the fact that he skated off under his own power is promising), his injury would probably be classed as a mild TBI.
It would be considered more severe than a concussion, given the obvious injury to the brain from the contusion, even if he wasn't knocked out -- concussions often don't involve a true loss of consciousness).