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Marketable Securities | 3 Months Ended
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Dec. 31, 2018
Marketable Securities [Abstract] |
MARKETABLE SECURITIES | MARKETABLE SECURITIES Our marketable securities may consist of certificates of deposit, commercial paper, corporate bonds and government municipal bonds. We analyze our available-for-sale marketable securities for impairment on an ongoing basis. When we perform this analysis, we consider factors such as the length of time and extent to which the securities have been in an unrealized loss position and the trend of any unrealized losses. We also consider whether an unrealized loss is a temporary loss or an other-than-temporary loss based on factors such as: (a) whether we have the intent to sell the security, (b) whether it is more likely than not that we will be required to sell the security before its anticipated recovery, or (c) permanent impairment due to bankruptcy or insolvency. In order to estimate the fair value for each security in our investment portfolio, we obtain quoted market prices and trading activity for each security where available. We obtain relevant information from our investment advisor and, if warranted, also may review the financial solvency of certain security issuers. As of December 31, 2018, all of our securities that we held were trading below our amortized cost basis. We determined each decline in value to be temporary based upon the above described factors. We expect to realize the fair value of these securities, plus accrued interest, either at the time of maturity or when the security is sold. All of our current holdings are classified as available-for-sale marketable securities and are recorded at fair value on our consolidated balance sheet with the unrealized gains and losses recorded in accumulated other comprehensive income (loss). All of our current marketable securities will mature in less than one year. Our balance sheet classification of available for sale securities is based on our best estimate of when we expect to liquidate such investments and, presently, is consistent with the stated maturity dates of such investments. However, we are not committed to holding these investments until their maturity and may determine to liquidate some or all of these investments earlier based on our liquidity and other needs. During the three months ended December 31, 2018 and 2017, we received proceeds from our available-for-sale marketable securities of $0.5 million and $4.3 million, respectively. At December 31, 2018 our marketable securities were (in thousands):
| Amortized Cost (1) |  | Unrealized Gains |  | Unrealized Losses |  | Fair Value (1)
Current marketable securities: |  |  |  |  |  |  |
Certificates of deposit | $ | 4,262 |  |  | $ | — |  |  | $ | (15 | ) |  | $ | 4,247 |
Total marketable securities | $ | 4,262 |  |  | $ | — |  |  | $ | (15 | ) |  | $ | 4,247 |
(1) | Included in amortized cost and fair value is purchased and accrued interest of $12.
At September 30, 2018 our marketable securities were (in thousands):
| Amortized Cost (1) |  | Unrealized Gains |  | Unrealized Losses |  | Fair Value (1)
Current marketable securities: |  |  |  |  |  |  |
Certificates of deposit | $ | 4,756 |  |  | — |  |  | $ | (20 | ) |  | $ | 4,736 |
Total marketable securities | $ | 4,756 |  |  | $ | — |  |  | $ | (20 | ) |  | $ | 4,736 |
(1) | Included in amortized cost and fair value is purchased and accrued interest of $6.
The following tables show the fair values and gross unrealized losses of our available-for-sale marketable securities that have been in a continuous unrealized loss position deemed to be temporary, aggregated by investment category (in thousands):
| December 31, 2018
| Less than 12 Months |  | More than 12 Months
| Fair Value |  | Unrealized Losses |  | Fair Value |  | Unrealized Losses
Certificates of deposit | $ | — |  |  | $ | — |  |  | $ | 4,247 |  |  | $ | (15 | )
Total | $ | — |  |  | $ | — |  |  | $ | 4,247 |  |  | $ | (15 | )
6. MARKETABLE SECURITIES (CONTINUED)
| September 30, 2018
| Less than 12 Months |  | More than 12 Months
| Fair Value |  | Unrealized Losses |  | Fair Value |  | Unrealized Losses
Certificates of deposit | $ | — |  |  | $ | — |  |  | $ | 4,736 |  |  | $ | (20 | )
Total | $ | — |  |  | $ | — |  |  | $ | 4,736 |  |  | $ | (20 | )

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- Definition The entire disclosure for investments in certain debt and equity securities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2209399 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2324412 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -URI http://asc.fasb.org/topic&trid=2196928 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 940 -SubTopic 320 -URI http://asc.fasb.org/subtopic&trid=2176304 + Details
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