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Marketable Securities	6 Months Ended
Marketable Securities	Mar. 31, 2016
Marketable Securities [Abstract]
Cash, Cash Equivalents, and Marketable Securities [Text Block]	Marketable Securities Marketable securities consist of mutual fund investments principally in federal, state and local government debt securities of $13,294 as of March 31, 2016. Such mutual fund investments are stated at market value based on quoted market prices (Level 1 inputs) and are classified as available-for-sale under the provisions of Financial Accounting Standards Board (FASB) Accounting Standards Codification (ASC) 320, with unrealized gains and losses reported in accumulated other comprehensive loss as a component of shareholders’ equity. The cost of such securities at March 31, 2016 was $13,528, with $234 of cumulative unrealized losses reported at March 31, 2016.