Everything that is done within the business needs to be documented, and not just basic things like the visons, missions, roles and responsibility It is also how you expect your team to do things. Focus on the processes where the hard work is done and less on where you rely on people like yourself and other senior leaders in your business.
I know it is easier said than done, but systems and processes take priority over single or individual tasks. There is no extra benefit, and it can often be detrimental in your journey to scale if you are focusing on single-action tasks.