Note 12 - Operating Segments (Details Textual) - USD ($)	3 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Revenue from Contract with Customer, Including Assessed Tax	$ 12,301,000	$ 11,736,000
Product Concentration Risk [Member] | Revenue Benchmark [Member] | Non-US [Member]
Concentration Risk, Percentage	7.00%
Traditional Business [Member]
Revenue from Contract with Customer, Including Assessed Tax	$ 3,787,000	3,782,000
Traditional Business [Member] | Transferred at Point in Time [Member]
Revenue from Contract with Customer, Including Assessed Tax	2,689,000	2,672,000
Traditional Business [Member] | Transferred over Time [Member]
Revenue from Contract with Customer, Including Assessed Tax	1,098,000	1,110,000
Journal Technologies [Member]
Revenue from Contract with Customer, Including Assessed Tax	$ 8,514,000	$ 7,954,000
Journal Technologies [Member] | Product Concentration Risk [Member] | Revenue Benchmark [Member]
Concentration Risk, Percentage	69.00%	68.00%
Journal Technologies [Member] | Transferred at Point in Time [Member]
Revenue from Contract with Customer, Including Assessed Tax	$ 4,121,000	$ 3,476,000
Journal Technologies [Member] | Transferred over Time [Member]
Revenue from Contract with Customer, Including Assessed Tax	$ 4,393,000	$ 4,478,000