Note 4 - Acquisitions - Assets and Liabilities Assumed (Details) - USD ($) $ in Thousands			1 Months Ended	6 Months Ended
	Mar. 13, 2019	Feb. 13, 2019	Mar. 13, 2019	Mar. 31, 2019	Mar. 31, 2018	Sep. 30, 2018	Sep. 30, 2017
Cash	$ 8		$ 8
Accounts receivable, net	1,101		1,101
Other assets	40		40
Fixed assets, net	272		272
Intangible assets	4,031		4,031
Goodwill	1,289		1,289	$ 5,346		$ 7,782	$ 12,641
Total assets	6,741		6,741
Current liabilities	556		556
Net assets acquired:	6,185		6,185
Cash Paid (including acquisition costs)			5,608	$ 5,608
Future deferred payments (present value)			97
Common stock ( fair value)			480
Total consideration paid			6,185
Seevolution Inc [Member]
Cash
Accounts receivable, net		47
Other assets
Fixed assets, net
Intangible assets		1,024
Goodwill
Total assets		1,071
Current liabilities		76
Net assets acquired:		995
Cash Paid (including acquisition costs)		418
Future deferred payments (present value)		97
Common stock ( fair value)		480
Total consideration paid		$ 995
Stantive Technologies Group Inc [Member]
Cash	8		8
Accounts receivable, net	1,054		1,054
Other assets	40		40
Fixed assets, net	272		272
Intangible assets	3,007		3,007
Goodwill	1,289		1,289
Total assets	5,670		5,670
Current liabilities	480		480
Net assets acquired:	5,190		$ 5,190
Cash Paid (including acquisition costs)	5,190
Future deferred payments (present value)
Common stock ( fair value)
Total consideration paid	$ 5,190