Note 6 - Revenue - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
Dec. 31, 2020	Dec. 31, 2019
Revenue	$ 9,165	$ 8,015
Hardware [Member]
Revenue	1,347	1,054
Software [Member]
Revenue	800	884
Shipping [Member]
Revenue	14	117
Product and Other [Member]
Revenue	2,161	2,055
Service Support [Member]
Revenue	2,008	2,291
Service Hosting [Member]
Revenue	2,376	1,502
Service Events [Member]
Revenue	1,942	2,052
Service Installs and Training [Member]
Revenue	678	115
Service [Member]
Revenue	7,004	5,960
Intersegment Eliminations [Member]
Revenue	(560)	(321)
Intersegment Eliminations [Member] \| Hardware [Member]
Revenue	(134)	(73)
Intersegment Eliminations [Member] \| Software [Member]
Revenue	(147)	(56)
Intersegment Eliminations [Member] \| Shipping [Member]
Revenue
Intersegment Eliminations [Member] \| Product and Other [Member]
Revenue	(281)	(129)
Intersegment Eliminations [Member] \| Service Support [Member]
Revenue	(216)	(192)
Intersegment Eliminations [Member] \| Service Hosting [Member]
Revenue	(63)
Intersegment Eliminations [Member] \| Service Events [Member]
Revenue
Intersegment Eliminations [Member] \| Service Installs and Training [Member]
Revenue
Intersegment Eliminations [Member] \| Service [Member]
Revenue	(279)	(192)
SOFO [Member] \| Operating Segments [Member]
Revenue	6,868	6,324
SOFO [Member] \| Operating Segments [Member] \| Hardware [Member]
Revenue	1,315	1,046
SOFO [Member] \| Operating Segments [Member] \| Software [Member]
Revenue	787	714
SOFO [Member] \| Operating Segments [Member] \| Shipping [Member]
Revenue	13	116
SOFO [Member] \| Operating Segments [Member] \| Product and Other [Member]
Revenue	2,115	1,876
SOFO [Member] \| Operating Segments [Member] \| Service Support [Member]
Revenue	1,806	2,010
SOFO [Member] \| Operating Segments [Member] \| Service Hosting [Member]
Revenue	1,477	1,006
SOFO [Member] \| Operating Segments [Member] \| Service Events [Member]
Revenue	1,053	1,318
SOFO [Member] \| Operating Segments [Member] \| Service Installs and Training [Member]
Revenue	417	114
SOFO [Member] \| Operating Segments [Member] \| Service [Member]
Revenue	4,753	4,448
SFI [Member] \| Operating Segments [Member]
Revenue	652	594
SFI [Member] \| Operating Segments [Member] \| Hardware [Member]
Revenue	86	66
SFI [Member] \| Operating Segments [Member] \| Software [Member]
Revenue	101	189
SFI [Member] \| Operating Segments [Member] \| Shipping [Member]
Revenue	1	1
SFI [Member] \| Operating Segments [Member] \| Product and Other [Member]
Revenue	188	256
SFI [Member] \| Operating Segments [Member] \| Service Support [Member]
Revenue	179	155
SFI [Member] \| Operating Segments [Member] \| Service Hosting [Member]
Revenue	258	120
SFI [Member] \| Operating Segments [Member] \| Service Events [Member]
Revenue	17	62
SFI [Member] \| Operating Segments [Member] \| Service Installs and Training [Member]
Revenue	10	1
SFI [Member] \| Operating Segments [Member] \| Service [Member]
Revenue	464	338
MSKK [Member] \| Operating Segments [Member]
Revenue	2,205	1,418
MSKK [Member] \| Operating Segments [Member] \| Hardware [Member]
Revenue	80	15
MSKK [Member] \| Operating Segments [Member] \| Software [Member]
Revenue	59	37
MSKK [Member] \| Operating Segments [Member] \| Shipping [Member]
Revenue
MSKK [Member] \| Operating Segments [Member] \| Product and Other [Member]
Revenue	139	52
MSKK [Member] \| Operating Segments [Member] \| Service Support [Member]
Revenue	239	318
MSKK [Member] \| Operating Segments [Member] \| Service Hosting [Member]
Revenue	704	376
MSKK [Member] \| Operating Segments [Member] \| Service Events [Member]
Revenue	872	672
MSKK [Member] \| Operating Segments [Member] \| Service Installs and Training [Member]
Revenue	251
MSKK [Member] \| Operating Segments [Member] \| Service [Member]
Revenue	$ 2,066	$ 1,366