Employee Stock Purchase Plan (Details)	12 Months Ended
	Sep. 30, 2019 shares	Sep. 30, 2018 shares	Dec. 31, 2013 shares
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Number of shares covered under the Employee Stock Purchase Plan (ESPP)			250,000
Purchase price per share as percentage of fair market value	95
Issuance of shares under employee stock purchase plan (in shares)	29,238	22,895