Note 11 - Operating Segments - Deferred Revenue Obligations (Details)	3 Months Ended
	Dec. 31, 2018 USD ($)
Subscription and Circulation [Member]
Deferred revenue	$ 3,174,000
Deferred Revenue, Additions	1,111,000
Deferred Revenue, Revenue Recognized	(1,338,000)
Deferred revenue	2,947,000
Installation Contracts [Member]
Deferred revenue	2,554,000
Deferred Revenue, Additions	925,000
Deferred Revenue, Revenue Recognized	(1,037,000)
Deferred revenue	2,442,000
License and Maintenance [Member]
Deferred revenue	14,362,000
Deferred Revenue, Additions	4,662,000
Deferred Revenue, Revenue Recognized	(4,294,000)
Deferred revenue	$ 14,730,000