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| 0001564590-17-011613-index.html | 2017-05-24 16:11:19 | |
| 0001564590-17-011613.txt | 2017-05-24 16:11:19 | |
 0001564590-17-011613-xbrl.zip | 72480 | 2017-05-24 16:11:19 |
| exa-10q_20170430.htm | 1311281 | 2017-05-24 16:11:19 |
| exa-20170430.xml | 789797 | 2017-05-24 16:11:19 |
| exa-20170430.xsd | 31402 | 2017-05-24 16:11:19 |
| exa-20170430_cal.xml | 43227 | 2017-05-24 16:11:19 |
| exa-20170430_def.xml | 61326 | 2017-05-24 16:11:19 |
| exa-20170430_lab.xml | 220964 | 2017-05-24 16:11:19 |
| exa-20170430_pre.xml | 171470 | 2017-05-24 16:11:19 |
| exa-ex311_11.htm | 17889 | 2017-05-24 16:11:19 |
| exa-ex312_7.htm | 17806 | 2017-05-24 16:11:19 |
| exa-ex321_10.htm | 7239 | 2017-05-24 16:11:19 |
| exa-ex322_8.htm | 7199 | 2017-05-24 16:11:19 |
| FilingSummary.xml | 27131 | 2017-05-24 16:11:19 |
| Financial_Report.xlsx | 43382 | 2017-05-24 16:11:19 |
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| report.css | 2767 | 2017-05-24 16:11:19 |
| Show.js | 1410 | 2017-05-24 16:11:19 |