The doors appear to be typical mass production with a router frame joint i don t know what this kind of joint is called see attached pictures.
How to disassemble a panel door.
This comes from wood central.
Hide glue can be de activated on joints that are still stuck by saturating the joint with alcohol.
Raise the garage door and disconnect the power to the automatic garage door opener if applicable.
Take one end of the cotton swab and dip it under the surface of the adhesive in your cup.
How to dissassemble a frame and panel cabinet door.
Squirt some alcohol i use denatured alcohol along the edges of the joint and it will wick in by capillary action.
Use a rubber mallet to carefully bang out the corner.
Carefully lower the door.
Undo the tension springs from the turnbuckles holding them in place.
For doors that are still reasonably tight or just beginning to loosen try the following.
Dip the cotton swab into the adhesive and slide it into the seam.
Pull the swab out and slide the swab in between the masking tape and the exposed door panel.
Use a scrap 2 by 4.
Square up the door if necessary and clamp the stiles against the rails with bar clamps under light pressure then gently tap in the tenon wedges to tighten the tenons in their mortises being careful not to crush the fibers in the tenons.
Place the door on a flat surface to begin working on the panel.
I have two kitchen cabinet doors that need to be cut shorter by several inches to accommodate the new microwave.
After several minutes the joint will be loose enough to pull apart.
Unscrew the top hinge first and remove the lower hinge with an assistant holding the door in place.