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Fair Value of Financial Instruments (Tables)
 3 Months Ended
Dec. 31, 2018
Fair Value Disclosures [Abstract]  
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]
The following table summarizes fair values for those assets and liabilities with fair value measured on a recurring basis.
 
 
 
Fair Value Measurements Using
 
 
 
 
 
 
Quoted Prices in

Active Markets

for Identical

Instruments

(Level 1)
 
 
Significant

Other

Observable

Inputs

(Level 2)
 
 
Significant

Unobservable

Inputs

(Level 3)
 
 
Total Fair Value
 
December 31, 2018
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Assets
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Short-term investments in U.S. Treasury Bills
 
$
1,599,067
 
 
$
-
 
 
$
-
 
 
$
1,599,067
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
September 30, 2018
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Assets
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Short-term investments in U.S. Treasury Bills
 
$
6,078,031
 
 
$
-
 
 
$
-
 
 
$
6,078,031