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Note 6 - Reportable Segments (Details Textual)	12 Months Ended
	Sep. 30, 2021 USD ($)	Sep. 30, 2020 USD ($)
Number of Reportable Segments	2
Revenue from Contract with Customer, Including Assessed Tax	$ 49,389,000	$ 49,942,000
Traditional Business [Member]
Revenue from Contract with Customer, Including Assessed Tax	14,895,000	14,695,000
Traditional Business [Member] | Transferred at Point in Time [Member]
Revenue from Contract with Customer, Including Assessed Tax	10,319,000	9,605,000
Traditional Business [Member] | Transferred over Time [Member]
Revenue from Contract with Customer, Including Assessed Tax	4,576,000	5,090,000
Journal Technologies [Member]
Revenue from Contract with Customer, Including Assessed Tax	34,494,000	35,247,000
Journal Technologies [Member] | Transferred at Point in Time [Member]
Revenue from Contract with Customer, Including Assessed Tax	14,787,000	14,025,000
Journal Technologies [Member] | Transferred over Time [Member]
Revenue from Contract with Customer, Including Assessed Tax	$ 19,707,000	$ 21,222,000

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- Definition

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

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