Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001558370-20-002792-index-headers.html | 2020-03-16 17:06:40 | |
| 0001558370-20-002792-index.html | 2020-03-16 17:06:40 | |
| 0001558370-20-002792.txt | 2020-03-16 17:06:40 | |
 0001558370-20-002792-xbrl.zip | 134465 | 2020-03-16 17:06:40 |
| FilingSummary.xml | 29090 | 2020-03-16 17:06:40 |
| Financial_Report.xlsx | 66741 | 2020-03-16 17:06:40 |
| mrns-20191231.xml | 1424928 | 2020-03-16 17:06:40 |
| mrns-20191231.xsd | 40421 | 2020-03-16 17:06:40 |
| mrns-20191231ex1098982d3.htm | 133769 | 2020-03-16 17:06:40 |
| mrns-20191231ex214228d1c.htm | 1523 | 2020-03-16 17:06:40 |
| mrns-20191231ex231b8d10c.htm | 7386 | 2020-03-16 17:06:40 |
| mrns-20191231ex311b3ade9.htm | 16508 | 2020-03-16 17:06:40 |
| mrns-20191231ex31223c55b.htm | 16547 | 2020-03-16 17:06:40 |
| mrns-20191231ex321468a89.htm | 9576 | 2020-03-16 17:06:40 |
| mrns-20191231ex4335b5883.htm | 51041 | 2020-03-16 17:06:40 |
| mrns-20191231x10k.htm | 2050631 | 2020-03-16 17:06:40 |
| mrns-20191231_cal.xml | 55490 | 2020-03-16 17:06:40 |
| mrns-20191231_def.xml | 212532 | 2020-03-16 17:06:40 |
| mrns-20191231_lab.xml | 471399 | 2020-03-16 17:06:40 |
| mrns-20191231_pre.xml | 354096 | 2020-03-16 17:06:40 |
 mrns20191231x10k001.jpg | 4468 | 2020-03-16 17:06:40 |
 mrns20191231x10k002.jpg | 455200 | 2020-03-16 17:06:40 |
| R1.htm | 33858 | 2020-03-16 17:06:40 |
| R10.htm | 70847 | 2020-03-16 17:06:40 |
| R11.htm | 30969 | 2020-03-16 17:06:40 |
| R12.htm | 29240 | 2020-03-16 17:06:40 |
| R13.htm | 51471 | 2020-03-16 17:06:40 |
| R14.htm | 5840 | 2020-03-16 17:06:40 |
| R15.htm | 177514 | 2020-03-16 17:06:40 |
| R16.htm | 8338 | 2020-03-16 17:06:40 |
| R17.htm | 11129 | 2020-03-16 17:06:40 |
| R18.htm | 103450 | 2020-03-16 17:06:40 |
| R19.htm | 54231 | 2020-03-16 17:06:40 |
| R2.htm | 59394 | 2020-03-16 17:06:40 |
| R20.htm | 104691 | 2020-03-16 17:06:40 |
| R21.htm | 42154 | 2020-03-16 17:06:40 |
| R22.htm | 63284 | 2020-03-16 17:06:40 |
| R23.htm | 30597 | 2020-03-16 17:06:40 |
| R24.htm | 28658 | 2020-03-16 17:06:40 |
| R25.htm | 48455 | 2020-03-16 17:06:40 |
| R26.htm | 176224 | 2020-03-16 17:06:40 |
| R27.htm | 100635 | 2020-03-16 17:06:40 |
| R28.htm | 53902 | 2020-03-16 17:06:40 |
| R29.htm | 28096 | 2020-03-16 17:06:40 |
| R3.htm | 23403 | 2020-03-16 17:06:40 |
| R30.htm | 14287 | 2020-03-16 17:06:40 |
| R31.htm | 25376 | 2020-03-16 17:06:40 |
| R32.htm | 4607 | 2020-03-16 17:06:40 |
| R33.htm | 9580 | 2020-03-16 17:06:40 |
| R34.htm | 21908 | 2020-03-16 17:06:40 |
| R35.htm | 19249 | 2020-03-16 17:06:40 |
| R36.htm | 15611 | 2020-03-16 17:06:40 |
| R37.htm | 80561 | 2020-03-16 17:06:40 |
| R38.htm | 13784 | 2020-03-16 17:06:40 |
| R39.htm | 22440 | 2020-03-16 17:06:40 |
| R4.htm | 30065 | 2020-03-16 17:06:40 |
| R40.htm | 133751 | 2020-03-16 17:06:40 |
| R41.htm | 23294 | 2020-03-16 17:06:40 |
| R42.htm | 19951 | 2020-03-16 17:06:40 |
| R43.htm | 29041 | 2020-03-16 17:06:40 |
| R44.htm | 11400 | 2020-03-16 17:06:40 |
| R45.htm | 20235 | 2020-03-16 17:06:40 |
| R46.htm | 78676 | 2020-03-16 17:06:40 |
| R47.htm | 15929 | 2020-03-16 17:06:40 |
| R5.htm | 46932 | 2020-03-16 17:06:40 |
| R6.htm | 8124 | 2020-03-16 17:06:40 |
| R7.htm | 61399 | 2020-03-16 17:06:40 |
| R8.htm | 8843 | 2020-03-16 17:06:40 |
| R9.htm | 65345 | 2020-03-16 17:06:40 |
| report.css | 2767 | 2020-03-16 17:06:40 |
| Show.js | 1085 | 2020-03-16 17:06:40 |