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FAIR VALUE MEASUREMENTS (Tables) | 6 Months Ended
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Jun. 30, 2019
FAIR VALUE MEASUREMENTS |
Schedule of assets and liabilities of the entity measured at fair value on a recurring basis | ​ Assets and liabilities of the Company measured at fair value on a recurring basis as of June 30, 2019 and December 31, 2018 are summarized as follows (in thousands):
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | ​ | ​ | ​ | June 30, 2019 | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ | ​ |  | Significant Other | ​ | ​ | ​ |  | ​ | ​
​ | ​ | Quoted Prices in | ​ | Observable | ​ | Unobservable | ​ | ​ | ​
​ | ​ | Active Markets | ​ | Inputs | ​ | Inputs | ​ | ​ | ​
Description | ​ | (Level 1) | ​ | (Level 2) | ​ | (Level 3) | ​ | Total
Certificates of deposit | ​ | $ | — | ​ | $ | 380 | ​ | $ | — | ​ | $ | 380
Money market funds | ​ | ​ | 2,335 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 2,335
Short term investments | ​ | ​ | 5,280 | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 5,280
Other investments | ​ | ​ | — | ​ | ​ | — | ​ | ​ | 10,000 | ​ | ​ | 10,000
Interest rate swap | ​ | ​ | — | ​ | ​ | (43) | ​ | ​ | — | ​ | ​ | (43)
Total assets and liabilities measured at fair value | ​ | $ | 7,615 | ​ | $ | 337 | ​ | $ | 10,000 | ​ | $ | 17,952
​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | December 31, 2018
​ |  | ​ | ​ |  | Significant Other |  | ​ | ​
​ | ​ | Quoted Prices in | ​ | Observable | ​ | ​ | ​
​ | ​ | Active Markets | ​ | Inputs | ​ | ​ | ​
Description | ​ | (Level 1) | ​ | (Level 2) | ​ | Total
Certificates of deposit | ​ | $ | — | ​ | $ | 380 | ​ | $ | 380
Money market funds | ​ | ​ | 2,266 | ​ | ​ | — | ​ | ​ | 2,266
Short term investments | ​ | ​ | 393 | ​ | ​ | — | ​ | ​ | 393
Commercial paper | ​ | ​ | — | ​ | ​ | 13,972 | ​ | ​ | 13,972
Interest rate swap | ​ | ​ | — | ​ | ​ | 140 | ​ | ​ | 140
Total assets and liabilities measured at fair value | ​ | $ | 2,659 | ​ | $ | 14,492 | ​ | $ | 17,151
​

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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, 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://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258 + Details
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