Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001437749-22-008982-index-headers.html | 2022-04-14 17:00:47 | |
| 0001437749-22-008982-index.html | 2022-04-14 17:00:47 | |
| 0001437749-22-008982.txt | 2022-04-14 17:00:47 | |
 0001437749-22-008982-xbrl.zip | 314617 | 2022-04-14 17:00:47 |
| cenb-20211231.xsd | 104635 | 2022-04-14 17:00:47 |
| cenb-20211231_cal.xml | 62759 | 2022-04-14 17:00:47 |
| cenb-20211231_def.xml | 705975 | 2022-04-14 17:00:47 |
| cenb-20211231_lab.xml | 538619 | 2022-04-14 17:00:47 |
| cenb-20211231_pre.xml | 744477 | 2022-04-14 17:00:47 |
| cenb20211231_10k.htm | 2161274 | 2022-04-14 17:00:47 |
| cenb20211231_10k_htm.xml | 1388187 | 2022-04-14 17:00:47 |
| ex_356875.htm | 1777 | 2022-04-14 17:00:47 |
| ex_356876.htm | 8860 | 2022-04-14 17:00:47 |
| ex_356877.htm | 8872 | 2022-04-14 17:00:47 |
| ex_356878.htm | 5256 | 2022-04-14 17:00:47 |
| ex_356879.htm | 5303 | 2022-04-14 17:00:47 |
| ex_356888.htm | 23228 | 2022-04-14 17:00:47 |
| FilingSummary.xml | 59127 | 2022-04-14 17:00:47 |
| Financial_Report.xlsx | 108101 | 2022-04-14 17:00:47 |
| MetaLinks.json | 883977 | 2022-04-14 17:00:47 |
| R1.htm | 62043 | 2022-04-14 17:00:47 |
| R10.htm | 7530 | 2022-04-14 17:00:47 |
| R11.htm | 40858 | 2022-04-14 17:00:47 |
| R12.htm | 12626 | 2022-04-14 17:00:47 |
| R13.htm | 8067 | 2022-04-14 17:00:47 |
| R14.htm | 26004 | 2022-04-14 17:00:47 |
| R15.htm | 22524 | 2022-04-14 17:00:47 |
| R16.htm | 28900 | 2022-04-14 17:00:47 |
| R17.htm | 28504 | 2022-04-14 17:00:47 |
| R18.htm | 24957 | 2022-04-14 17:00:47 |
| R19.htm | 5003 | 2022-04-14 17:00:47 |
| R2.htm | 131820 | 2022-04-14 17:00:47 |
| R20.htm | 5006 | 2022-04-14 17:00:47 |
| R21.htm | 61787 | 2022-04-14 17:00:47 |
| R22.htm | 10152 | 2022-04-14 17:00:47 |
| R23.htm | 12979 | 2022-04-14 17:00:47 |
| R24.htm | 17838 | 2022-04-14 17:00:47 |
| R25.htm | 52343 | 2022-04-14 17:00:47 |
| R26.htm | 5764 | 2022-04-14 17:00:47 |
| R27.htm | 23309 | 2022-04-14 17:00:47 |
| R28.htm | 74683 | 2022-04-14 17:00:47 |
| R29.htm | 39174 | 2022-04-14 17:00:47 |
| R3.htm | 9442 | 2022-04-14 17:00:47 |
| R30.htm | 6779 | 2022-04-14 17:00:47 |
| R31.htm | 6825 | 2022-04-14 17:00:47 |
| R32.htm | 63373 | 2022-04-14 17:00:47 |
| R33.htm | 34659 | 2022-04-14 17:00:47 |
| R34.htm | 9740 | 2022-04-14 17:00:47 |
| R35.htm | 20509 | 2022-04-14 17:00:47 |
| R36.htm | 19054 | 2022-04-14 17:00:47 |
| R37.htm | 26987 | 2022-04-14 17:00:47 |
| R38.htm | 28416 | 2022-04-14 17:00:47 |
| R39.htm | 21309 | 2022-04-14 17:00:47 |
| R4.htm | 90324 | 2022-04-14 17:00:47 |
| R40.htm | 59092 | 2022-04-14 17:00:47 |
| R41.htm | 12333 | 2022-04-14 17:00:47 |
| R42.htm | 30097 | 2022-04-14 17:00:47 |
| R43.htm | 23410 | 2022-04-14 17:00:47 |
| R44.htm | 69174 | 2022-04-14 17:00:47 |
| R45.htm | 36384 | 2022-04-14 17:00:47 |
| R46.htm | 21485 | 2022-04-14 17:00:47 |
| R47.htm | 4782 | 2022-04-14 17:00:47 |
| R48.htm | 39091 | 2022-04-14 17:00:47 |
| R49.htm | 26067 | 2022-04-14 17:00:47 |
| R5.htm | 90611 | 2022-04-14 17:00:47 |
| R50.htm | 22756 | 2022-04-14 17:00:47 |
| R51.htm | 8007 | 2022-04-14 17:00:47 |
| R52.htm | 16004 | 2022-04-14 17:00:47 |
| R53.htm | 26734 | 2022-04-14 17:00:47 |
| R54.htm | 56190 | 2022-04-14 17:00:47 |
| R55.htm | 18825 | 2022-04-14 17:00:47 |
| R56.htm | 28873 | 2022-04-14 17:00:47 |
| R57.htm | 17086 | 2022-04-14 17:00:47 |
| R58.htm | 25681 | 2022-04-14 17:00:47 |
| R59.htm | 13406 | 2022-04-14 17:00:47 |
| R6.htm | 159884 | 2022-04-14 17:00:47 |
| R60.htm | 17530 | 2022-04-14 17:00:47 |
| R61.htm | 30050 | 2022-04-14 17:00:47 |
| R62.htm | 23814 | 2022-04-14 17:00:47 |
| R63.htm | 20339 | 2022-04-14 17:00:47 |
| R64.htm | 20916 | 2022-04-14 17:00:47 |
| R65.htm | 24439 | 2022-04-14 17:00:47 |
| R66.htm | 21511 | 2022-04-14 17:00:47 |
| R67.htm | 22372 | 2022-04-14 17:00:47 |
| R68.htm | 12765 | 2022-04-14 17:00:47 |
| R69.htm | 3817 | 2022-04-14 17:00:47 |
| R7.htm | 6979 | 2022-04-14 17:00:47 |
| R70.htm | 4992 | 2022-04-14 17:00:47 |
| R71.htm | 21384 | 2022-04-14 17:00:47 |
| R72.htm | 11395 | 2022-04-14 17:00:47 |
| R73.htm | 19687 | 2022-04-14 17:00:47 |
| R74.htm | 3589 | 2022-04-14 17:00:47 |
| R75.htm | 6565 | 2022-04-14 17:00:47 |
| R76.htm | 66059 | 2022-04-14 17:00:47 |
| R77.htm | 46836 | 2022-04-14 17:00:47 |
| R78.htm | 19673 | 2022-04-14 17:00:47 |
| R79.htm | 118659 | 2022-04-14 17:00:47 |
| R8.htm | 29472 | 2022-04-14 17:00:47 |
| R80.htm | 8386 | 2022-04-14 17:00:47 |
| R81.htm | 25162 | 2022-04-14 17:00:47 |
| R82.htm | 8314 | 2022-04-14 17:00:47 |
| R83.htm | 6851 | 2022-04-14 17:00:47 |
| R84.htm | 32991 | 2022-04-14 17:00:47 |
| R85.htm | 49489 | 2022-04-14 17:00:47 |
| R86.htm | 31862 | 2022-04-14 17:00:47 |
| R87.htm | 12942 | 2022-04-14 17:00:47 |
| R88.htm | 15649 | 2022-04-14 17:00:47 |
| R9.htm | 16496 | 2022-04-14 17:00:47 |
| report.css | 2768 | 2022-04-14 17:00:47 |
| Show.js | 1086 | 2022-04-14 17:00:47 |