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Lines of Credit (Detail) $ in Millions | 12 Months Ended
--- | ---
Sep. 30, 2018 USD ($) | Sep. 30, 2017 USD ($)
Line of Credit Facility [Line Items] |  |
Maximum borrowing capacity | $ 1.0 |
Interest rate terms | London Inter-Bank Offer Rate ("LIBOR") plus 2.5%, with a floor of 4% |
Debt Instrument, Description of Variable Rate Basis | Prime plus 5% |
liquidity ratio | 1.2 |
Minimum Net Worth Required for Compliance | $ 2.5 |
Ratio of Indebtedness to Net Capital | 5.0 |
Short-term Debt | $ 3.2 | $ 3.1
Line of Credit |  |
Line of Credit Facility [Line Items] |  |
Line of Credit Facility, Description | 0.04 | 0.04
Line of Credit | Prime Rate |  |
Line of Credit Facility [Line Items] |  |
Basis spread on variable rate | 2.50% | 2.50%

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- Definition The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR. + References No definition available. + Details
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- Definition Description of the interest rate as being fixed or variable, and, if variable, identification of the index or rate on which the interest rate is based and the number of points or percentage added to that index or rate to set the rate, and other pertinent information, such as frequency of rate resets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Description of the terms of a credit facility arrangement. Terms typically include interest rate, collateral required, guarantees required, repayment requirements, and restrictions on use of assets and activities of the entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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