Note 10 - Operating Segments - Deferred Revenue Obligations (Details)	9 Months Ended
	Jun. 30, 2020 USD ($)
Subscription and Circulation [Member]
Deferred revenue	$ 3,195,000
Deferred Revenue, Additions	3,676,000
Deferred Revenue, Revenue Recognized	(3,857,000)
Deferred revenue	3,014,000
Installation Contracts [Member]
Deferred revenue	1,932,000
Deferred Revenue, Additions	4,039,000
Deferred Revenue, Revenue Recognized	(5,488,000)
Deferred revenue	483,000
License and Maintenance [Member]
Deferred revenue	16,057,000
Deferred Revenue, Additions	16,749,000
Deferred Revenue, Revenue Recognized	(15,823,000)
Deferred revenue	$ 16,983,000