Note 12 - Operating Segments (Details Textual) - USD ($)	3 Months Ended		6 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Product Concentration Risk [Member] | Sales Revenue, Net [Member]
Concentration Risk, Percentage	55.00%	59.00%	58.00%	57.00%
Geographic Concentration Risk [Member] | Sales Revenue, Net [Member] | Non-US [Member]
Concentration Risk, Percentage			1.00%
Traditional Business [Member]
Revenues, Total	$ 4,224,000		$ 8,305,000
Revenue Recognized Upon Completion of Services	2,868,000		5,586,000
Deferred Revenue, Revenue Recognized	1,356,000		2,719,000
Journal Technologies [Member]
Revenues, Total	5,114,000		11,285,000
Revenue Recognized Upon Completion of Services	1,289,000		3,353,000
Deferred Revenue, Revenue Recognized	$ 3,825,000		$ 7,932,000