Stock-Based Compensation Plans - Stock Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Share-based Payment Arrangement [Abstract]
Stock option grants	$ 59	$ 56
Annual director stock award	0	0
Stock based compensation expense	$ 59	$ 56

Amount of increase to additional paid-in capital (APIC) for recognition of cost for award under share-based payment arrangement.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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Period Type:	duration