Note 6 - Reportable Segments (Details Textual)	12 Months Ended
	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)
Number of Reportable Segments	2
Goodwill, Impairment Loss	$ 0	$ 13,400,000
Revenue from Contract with Customer, Including Assessed Tax	49,942,000	48,655,000
Traditional Business [Member]
Revenue from Contract with Customer, Including Assessed Tax	14,695,000	17,093,000
Traditional Business [Member] | Transferred at Point in Time [Member]
Revenue from Contract with Customer, Including Assessed Tax	9,605,000	11,844,000
Traditional Business [Member] | Transferred over Time [Member]
Revenue from Contract with Customer, Including Assessed Tax	5,090,000	5,249,000
Journal Technologies [Member]
Revenue from Contract with Customer, Including Assessed Tax	35,247,000	31,562,000
Journal Technologies [Member] | Transferred at Point in Time [Member]
Revenue from Contract with Customer, Including Assessed Tax	14,025,000	12,353,000
Journal Technologies [Member] | Transferred over Time [Member]
Revenue from Contract with Customer, Including Assessed Tax	$ 21,222,000	$ 19,209,000