Note 12 - Operating Segments - Deferred Revenue Obligations (Details)	9 Months Ended
	Jun. 30, 2018 USD ($)
Subscription and Circulation [Member]
Deferred revenue	$ 3,284,000
Deferred Revenue, Additions	4,018,000
Deferred Revenue, Revenue Recognized	(4,065,000)
Deferred revenue	3,237,000
Installation Contracts [Member]
Deferred revenue	5,072,000
Deferred Revenue, Additions	1,898,000
Deferred Revenue, Revenue Recognized	(3,260,000)
Deferred revenue	3,710,000
License and Maintenance [Member]
Deferred revenue	10,201,000
Deferred Revenue, Additions	13,242,000
Deferred Revenue, Revenue Recognized	(11,974,000)
Deferred revenue	$ 11,469,000