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|---|---|---|
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| 0000950170-22-001641-index.html | 2022-02-22 17:14:46 | |
| 0000950170-22-001641.txt | 2022-02-22 17:14:46 | |
 0000950170-22-001641-xbrl.zip | 442644 | 2022-02-22 17:14:46 |
| cers-20211231.htm | 4224730 | 2022-02-22 17:14:46 |
| cers-20211231.xsd | 71308 | 2022-02-22 17:14:46 |
| cers-20211231_cal.xml | 92351 | 2022-02-22 17:14:46 |
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| cers-20211231_lab.xml | 643637 | 2022-02-22 17:14:46 |
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| cers-ex10_6.htm | 54309 | 2022-02-22 17:14:46 |
| cers-ex21_1.htm | 5701 | 2022-02-22 17:14:46 |
| cers-ex23_1.htm | 4836 | 2022-02-22 17:14:46 |
| cers-ex31_1.htm | 15281 | 2022-02-22 17:14:46 |
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| cers-ex32_1.htm | 10758 | 2022-02-22 17:14:46 |
| FilingSummary.xml | 48643 | 2022-02-22 17:14:46 |
| Financial_Report.xlsx | 116366 | 2022-02-22 17:14:46 |
 img232810278_0.jpg | 34925 | 2022-02-22 17:14:46 |
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| report.css | 2767 | 2022-02-22 17:14:46 |
| Show.js | 1085 | 2022-02-22 17:14:46 |