Note 1 - Organization (Details Textual)	Dec. 31, 2018	Sep. 30, 2018
Number of Stores	151	148
Number of States in which Entity Operates	19	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