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| 0001564590-19-002626-index.html | 2019-02-12 12:39:26 | |
| 0001564590-19-002626.txt | 2019-02-12 12:39:26 | |
 0001564590-19-002626-xbrl.zip | 90095 | 2019-02-12 12:39:26 |
| astc-10q_20181231.htm | 1190643 | 2019-02-12 12:39:26 |
| astc-20181231.xml | 1173391 | 2019-02-12 12:39:26 |
| astc-20181231.xsd | 34597 | 2019-02-12 12:39:26 |
| astc-20181231_cal.xml | 36164 | 2019-02-12 12:39:26 |
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| astc-20181231_lab.xml | 275919 | 2019-02-12 12:39:26 |
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| astc-ex312_7.htm | 21528 | 2019-02-12 12:39:26 |
| astc-ex321_8.htm | 11380 | 2019-02-12 12:39:26 |
| FilingSummary.xml | 29277 | 2019-02-12 12:39:26 |
| Financial_Report.xlsx | 49274 | 2019-02-12 12:39:26 |
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| report.css | 2767 | 2019-02-12 12:39:26 |
| Show.js | 1085 | 2019-02-12 12:39:26 |