Subsequent Event (Notes)	6 Months Ended
Mar. 31, 2013
Subsequent Event [Line Items]
Subsequent Events [Text Block]	Subsequent Event In April 2013, the Company entered into a Contract of Sale Agreement (the “Agreement”) to sell its Hauppauge, New York headquarters facility for a gross sale price of $6,350,000. During the sixty day period immediately following execution and delivery of the Agreement (the “Due Diligence Period”), the buyer is entitled to conduct environmental due diligence on the subject property and may elect to terminate the Agreement at any time during this period if any environmental assessment and/or environmental testing results are unacceptable. If buyer fails to terminate the Agreement on or before the last day of such Due Diligence Period, the buyer's obligation to purchase the property on the terms and conditions in the Agreement will become final and binding, with a closing date no later than August 29, 2013. The balance of the Agreement contains representations, warranties, covenants and conditions that are typical for real estate transactions of this nature. The transactions contemplated by the Agreement are expected to close during the Company's fourth quarter ended September 30, 2013, subject to customary closing conditions. There can be no assurance that all of the conditions to closing will be satisfied. If the transaction closes, the Company expects to record a gain on the sale of approximately $3.5 million. As of March 31, 2013, this facility was included in assets held for sale at depreciated cost and, accordingly, no additional depreciation expense will be 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. The two transactions are expected to generate $2.5 million of cash upon completion.

Subsequent Event

In April 2013, the Company entered into a Contract of Sale Agreement (the “Agreement”) to sell its Hauppauge, New York headquarters facility for a gross sale price of $6,350,000.

During the sixty day period immediately following execution and delivery of the Agreement (the “Due Diligence Period”), the buyer is entitled to conduct environmental due diligence on the subject property and may elect to terminate the Agreement at any time during this period if any environmental assessment and/or environmental testing results are unacceptable. If buyer fails to terminate the Agreement on or before the last day of such Due Diligence Period, the buyer's obligation to purchase the property on the terms and conditions in the Agreement will become final and binding, with a closing date no later than August 29, 2013. The balance of the Agreement contains representations, warranties, covenants and conditions that are typical for real estate transactions of this nature.

The transactions contemplated by the Agreement are expected to close during the Company's fourth quarter ended September 30, 2013, subject to customary closing conditions. There can be no assurance that all of the conditions to closing will be satisfied. If the transaction closes, the Company expects to record a gain on the sale of approximately $3.5 million.

As of March 31, 2013, this facility was included in assets held for sale at depreciated cost and, accordingly, no additional depreciation expense will be 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.

The two transactions are expected to generate $2.5 million of cash upon completion.