I'm very pleasepleased with Autrelle Holland's Aiki-jo manual, which contains the Suburi and Kihon (I believe those are what you refer to as "small kata". I've also been impressed with Stanford Aikido's discussion of the Jo Suburi, which contains some very precise, practical advice and a wonderful sense of humor.
Of course for video the Saito Aiki-Ken and Aiki-Jo disks are excellent - although one of these days I need to get around to asking why Saito-sensei breaks his wrists at the end of the stroke and why he drops the sword behind his back at the beginning of the stroke.