Note 3 - Cash, Cash Equivalents and Investments |
6 Months Ended | ||||||||||||||||||||||||||||||||||||
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Mar. 31, 2019 | |||||||||||||||||||||||||||||||||||||
| Notes to Financial Statements | |||||||||||||||||||||||||||||||||||||
| Cash and Cash Equivalents Disclosure [Text Block] |
Note 3. Cash, Cash Equivalents and InvestmentsThe Company currently invests its excess cash in money market accounts, treasury securities, and bank certificates of deposit (CDs) with a term of and are carried at amortized cost. Investments maturing in less than not more than five years. CDs with original maturities of more than three months are reported as held-to-maturity investmentsone year are classified as short term investments on the balance sheet, and investments maturing in one year or greater are classified as long term investments on the balance sheet.The maturity dates of the Company’s treasury securities and CDs as of March 31, 2019 and September 30, 2018 are as follows:
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