Note 3 - Cash, Cash Equivalents, and Investments

9 Months Ended

Jun. 30, 2021

Notes to Financial Statements

Cash and Cash Equivalents Disclosure [Text Block]

Note 3. Cash, Cash Equivalents, and Investments

The Company invests its excess cash in bank certificates of deposit (“CDs”) that are fully insured by the Federal Deposit Insurance Corporation (“FDIC”) as well as U.S. Treasury securities and money market accounts. CDs and US Treasuries with original maturities of more than three months are reported as held-to-maturity investments and are recorded at amortized cost, which approximates fair value due to the negligible risk of changes in value due to interest rates. The maturity dates of the Company’s investments as of June 30, 2021 and September 30, 2020 are as follows:

	June 30, 2021		September 30, 2020
Less than one year	$	10,864,831	$	10,582,527
1-5 years		26,721,221		25,143,000
Total	$	37,586,052	$	35,725,527