Headquarters Facility Sale and Purchase (Notes)	9 Months Ended
Headquarters Facility Sale and Purchase (Notes)	Jun. 30, 2013
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment [Text Block]	In April 2013, the Company entered into a Contract of Sale Agreement to sell its Hauppauge, New York headquarters facility for a gross sale price of $6,350,000. The sale transaction is expected to close by no later than August 29, 2013 and is subject to customary closing conditions. There can be no assurance that all of the conditions to closing will be satisfied. Upon closing, the sale transaction will generate approximately $6.0 million of cash, net of broker's commissions, and the Company expects to record a gain on the sale of approximately $3.5 million. Since March 31, 2013, this facility has been included in assets held for sale at depreciated cost and, accordingly, no additional depreciation expense has been recorded subsequent to this date. In April 2013, the Company also entered into a Contract of Sale Agreement and closed on the purchase of a new headquarters facility in Edgewood (Brentwood), New York, for a cash purchase price of $3,300,000.

Tabular disclosure of the useful life and salvage value of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale. Examples include land, buildings, machinery and equipment, and other types of furniture and equipment including, but not limited to, office equipment, furniture and fixtures, and computer equipment and software.

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