Securities and Equity Investments

6 Months Ended

Mar. 31, 2018

Investments, Debt and Equity Securities [Abstract]

7. SECURITIES AND EQUITY INVESTMENTS

Our financial instruments consist of cash and cash equivalents, accounts receivable, notes receivable, investments, accounts payable and a loan agreement. We believe that the carrying value of these financial instruments in the accompanying Condensed Consolidated Balance Sheets approximates their fair value due to their short-term nature. Additionally, we have a cost method investment in EnerTech Capital Partners II L.P. (“EnerTech”). We estimate the fair value of our investment in EnerTech (Level 3) 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 value to the fair value of the investment in EnerTech as of March 31, 2018, and September 30, 2017:

	March 31,		September 30,
	2018		2017
Carrying value	$	558	$	558
Unrealized gains		170		171
Fair value	$	728	$	729

At each reporting date, the Company performs an evaluation of impairment for securities to determine if any unrealized losses are other-than temporary. Based on the results of this evaluation, we believe the unrealized gain at March 31, 2018, and September 30, 2017, indicated our investment was not impaired.