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FAIR VALUE OF FINANCIAL INSTRUMENTS (Tables) | 6 Months Ended
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Dec. 31, 2018
Fair Value Disclosures [Abstract] |
Financial instruments' amortized cost, gross unrealized gains and losses, and fair value | The following tables summarize the Company's financial instruments' adjusted cost, gross unrealized gains and losses, and fair value by significant investment category as of December 31, 2018 (in thousands):
| December 31, 2018 |  |  |  |  |  |  |  |  |  |  |  |
| Adjusted Cost |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value |  | Cash and Cash Equivalents (1) |  | Short-Term Investments |  | Long-Term Investments
Level 1 |  |  |  |  |  |  |  |  |  |  |  |  | —
Money market funds | $ | 4,378 |  | $ | — |  | $ | — |  | $ | 4,378 |  | $ | 4,378 |  | $ | — |  | $ | —
Subtotal | $ | 4,378 |  | $ | — |  | $ | — |  | $ | 4,378 |  | $ | 4,378 |  | $ | — |  | $ | —
Level 2 |  |  |  |  |  |  |  |  |  |  |  |  |
Commercial paper | $ | 2,581 |  | $ | — |  | $ | — |  | $ | 2,581 |  | $ | — |  | $ | 2,581 |  | $ | —
Corporate securities | 120,578 |  | 23 |  | (163) |  | 120,438 |  | — |  | 82,889 |  | 37,549
U.S agency securities | 7,083 |  | — |  | (4) |  | 7,079 |  | — |  | 7,079 |  | —
US Government Bonds | 16,441 |  | 1 |  | (5) |  | 16,437 |  | 750 |  | 10,940 |  | 4,747
Subtotal | $ | 146,683 |  | $ | 24 |  | $ | (172) |  | $ | 146,535 |  | $ | 750 |  | $ | 103,489 |  | $ | 42,296
Total | $ | 151,061 |  | $ | 24 |  | $ | (172) |  | $ | 150,913 |  | $ | 5,128 |  | $ | 103,489 |  | $ | 42,296
(1) Cash and cash equivalents on the consolidated balance sheets includes securities that have a maturity of three months or less at the date of purchase. The carrying amount approximates fair value, primarily due to the short maturity of cash equivalent instruments.
Marketable securities in continuous unrealized loss position | The following table represents the Company's marketable securities that had been in continuous unrealized loss position for less than 12 months and for 12 months or greater as of December 31, 2018 (in thousands):
| December 31, 2018 |  |  |  |
| Continuous Unrealized Losses |  |  |  |
| Less than 12 Months |  | 12 Months or Greater |  | Total
Fair Value of marketable securities | $ | 112,900 |  | $ | — |  | $ | 112,900
Unrealized Loss | $ | (172) |  | $ | — |  | $ | (172)
Amortized costs and fair value of investment securities by contractual maturity | The following table represents the adjusted costs and fair value of investment by contractual maturity as of December 31, 2018 (in thousands):
| Available-For-Sale |  |
| Adjusted Cost |  | Fair Value
Due within 1 year | $ | 108,696 |  | $ | 108,617
Due after 1 year through 5 years | 42,365 |  | 42,296
Total | $ | 151,061 |  | $ | 150,913

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- Definition Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19190-110258 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=99377789&loc=d3e19207-110258 + Details
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