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Employee 401(k) Profit Sharing Plans	12 Months Ended
	Sep. 30, 2017
Compensation And Retirement Disclosure [Abstract]
Employee 401(k) Profit Sharing Plans	17.  EMPLOYEE 401(k) PROFIT SHARING PLANS: Employees are eligible to participate in our 401(k) Profit Sharing Plan (the “Plan”) following their 90-day introductory period starting either April 1 or October 1, provided that they are 21 years of age.  Under the Plan, we match 25% of participants’ contributions, up to a maximum of 5% of each participant’s compensation. We contributed, under the Plan, or pursuant to previous similar plans, approximately $605,000, $713,000, and $765,000 for the fiscal years ended September 30, 2015, 2016, and 2017, respectively.

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- Definition

The entire disclosure for pension and other postretirement benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-URI http://asc.fasb.org/topic&trid=2235017

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