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Securities and Equity Investments | 6 Months Ended
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Mar. 31, 2014
Investments, Debt and Equity Securities [Abstract] |
Cost And Equity Method Investments | 7. SECURITIES AND EQUITY INVESTMENTS Our financial instruments consist of cash and cash equivalents, accounts receivable, notes receivable, investments, accounts payable, a loan agreement, and an interest rate swap agreement. We believe that the carrying value of financial instruments, with the exception of our cost method investment in EnerTech Capital Partners II L.P. (“Enertech”), in the accompanying Consolidated Balance Sheets, approx imates their fair value due to their short-term nature. We estimate the fair value of our investment in EnerTech (Level 3) using quoted market prices for underlying publicly traded securities, and estimated enterprise values are determined using cash flow projections and market multiples of the underlying non-public companies. Investment in EnerTech The following table presents the reconciliation of the carrying val ue and unrealized gains to the fair value of the investment in EnerTech as of March 31, 2014 and September 30, 2013:
|  | March 31, |  | September 30,
|  | 2014 |  | 2013
Carrying value |  | $ | 919 |  | $ | 919
Unrealized gains |  |  | 128 |  |  | 138
Fair value |  | $ | 1,047 |  | $ | 1,057
At each reporting date, the Company performs evaluations of impairment for this investment to determine if any unrealized losses are other-than-temporary. There was no impairment for the three or six period ended March 31, 2014. On December 31, 201 3, EnerTech’s general partner, with the consent of the fund’s investors, extended the fund through December 31, 201 4. The fund will terminate on this date unless extended by the fund’s valuation committee. The fund may be extended for another one-year perio d through December 31, 201 5 with the consent of the fund’s valuation committee.

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- Definition The entire disclosure for cost method and equity method investments included basis, impairment losses, recognized or unrecognized gains (losses). + References No definition available. + Details
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