Yup, although this takes a little bit of advanced knowledge.
When your Application Group is defined, you have an Application ID Field that you use to assign to different Applications, in order to define different reports (by type, indexing requirements, etc.).
You should be able to get that Application ID field when you perform your query, as long as it's defined to be displayed in the folder.
The 'advanced knowledge' part is that you have to be able to equate the list of values from that Application ID field to a data type. Which needs to be in a lookup table that your code can access, because you can't access THAT piece of information with arsdoc.
The good news is that the lookup table won't need to be updated very often. Once an Application ID Value is set, and an Application is defined as having a specific data type, it can't be changed.
In all honesty, this is a requirement that's probably better suited to using the ODWEK Java API than trying to piece it together with arsdoc.
Good luck, and let us know what your ultimate solution is.
-JD.