Note 10 - Stock-based Awards (Details) - USD ($)	12 Months Ended
Sep. 30, 2019	Sep. 30, 2018
Details
Shares Issued, Shares, Share-based Payment Arrangement, Forfeited	100,000
Stock based compensation	$ 5,000	$ 231,000

Number of shares (or other type of equity) forfeited during the period.

No definition available.

Name:	us-gaap_StockIssuedDuringPeriodSharesShareBasedCompensationForfeited
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration