Note 1 - Organization (Details Textual)	Mar. 31, 2020	Sep. 30, 2019
Number of Stores	157	153
Number of States in which Entity Operates	20	19

The number of states the entity operates in as of the balance sheet date.

No definition available.

Name:	us-gaap_NumberOfStatesInWhichEntityOperates
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant