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| 0001564590-20-025493-index.html | 2020-05-14 16:47:04 | |
| 0001564590-20-025493.txt | 2020-05-14 16:47:04 | |
 0001564590-20-025493-xbrl.zip | 101446 | 2020-05-14 16:47:04 |
| astc-10q_20200331.htm | 1847756 | 2020-05-14 16:47:04 |
| astc-20200331.xml | 847710 | 2020-05-14 16:47:04 |
| astc-20200331.xsd | 42727 | 2020-05-14 16:47:04 |
| astc-20200331_cal.xml | 55540 | 2020-05-14 16:47:04 |
| astc-20200331_def.xml | 159463 | 2020-05-14 16:47:04 |
| astc-20200331_lab.xml | 382468 | 2020-05-14 16:47:04 |
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| astc-ex312_8.htm | 21489 | 2020-05-14 16:47:04 |
| astc-ex321_7.htm | 11080 | 2020-05-14 16:47:04 |
| FilingSummary.xml | 27506 | 2020-05-14 16:47:04 |
| Financial_Report.xlsx | 52736 | 2020-05-14 16:47:04 |
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| report.css | 2767 | 2020-05-14 16:47:04 |
| Show.js | 1085 | 2020-05-14 16:47:04 |