Parent Directory| Name | Size | Last Modified |
|---|---|---|
 0001193125-20-137234-index-headers.html | 2020-05-08 11:40:20 | |
| 0001193125-20-137234-index.html | 2020-05-08 11:40:20 | |
| 0001193125-20-137234.txt | 2020-05-08 11:40:20 | |
 0001193125-20-137234-xbrl.zip | 205283 | 2020-05-08 11:40:20 |
| cnbka-20200331.xml | 3480650 | 2020-05-08 11:40:20 |
| cnbka-20200331.xsd | 51178 | 2020-05-08 11:40:20 |
| cnbka-20200331_cal.xml | 80429 | 2020-05-08 11:40:20 |
| cnbka-20200331_def.xml | 321090 | 2020-05-08 11:40:20 |
| cnbka-20200331_lab.xml | 453668 | 2020-05-08 11:40:20 |
| cnbka-20200331_pre.xml | 416735 | 2020-05-08 11:40:20 |
| d902478d10q.htm | 1031566 | 2020-05-08 11:40:20 |
| d902478dex311.htm | 11098 | 2020-05-08 11:40:20 |
| d902478dex312.htm | 11108 | 2020-05-08 11:40:20 |
| d902478dex321.htm | 5061 | 2020-05-08 11:40:20 |
| d902478dex322.htm | 5051 | 2020-05-08 11:40:20 |
| FilingSummary.xml | 38896 | 2020-05-08 11:40:20 |
| Financial_Report.xlsx | 80268 | 2020-05-08 11:40:20 |
 g902478g0501111311707.jpg | 18085 | 2020-05-08 11:40:20 |
| R1.htm | 39689 | 2020-05-08 11:40:20 |
| R10.htm | 136907 | 2020-05-08 11:40:20 |
| R11.htm | 120088 | 2020-05-08 11:40:20 |
| R12.htm | 652188 | 2020-05-08 11:40:20 |
| R13.htm | 35727 | 2020-05-08 11:40:20 |
| R14.htm | 44182 | 2020-05-08 11:40:20 |
| R15.htm | 32037 | 2020-05-08 11:40:20 |
| R16.htm | 134875 | 2020-05-08 11:40:20 |
| R17.htm | 69520 | 2020-05-08 11:40:20 |
| R18.htm | 53520 | 2020-05-08 11:40:20 |
| R19.htm | 65989 | 2020-05-08 11:40:20 |
| R2.htm | 111426 | 2020-05-08 11:40:20 |
| R20.htm | 135666 | 2020-05-08 11:40:20 |
| R21.htm | 118880 | 2020-05-08 11:40:20 |
| R22.htm | 652709 | 2020-05-08 11:40:20 |
| R23.htm | 35261 | 2020-05-08 11:40:20 |
| R24.htm | 42666 | 2020-05-08 11:40:20 |
| R25.htm | 28854 | 2020-05-08 11:40:20 |
| R26.htm | 127748 | 2020-05-08 11:40:20 |
| R27.htm | 59680 | 2020-05-08 11:40:20 |
| R28.htm | 46994 | 2020-05-08 11:40:20 |
| R29.htm | 70248 | 2020-05-08 11:40:20 |
| R3.htm | 24695 | 2020-05-08 11:40:20 |
| R30.htm | 5774 | 2020-05-08 11:40:20 |
| R31.htm | 25825 | 2020-05-08 11:40:20 |
| R32.htm | 23601 | 2020-05-08 11:40:20 |
| R33.htm | 27521 | 2020-05-08 11:40:20 |
| R34.htm | 30023 | 2020-05-08 11:40:20 |
| R35.htm | 20515 | 2020-05-08 11:40:20 |
| R36.htm | 27654 | 2020-05-08 11:40:20 |
| R37.htm | 27574 | 2020-05-08 11:40:20 |
| R38.htm | 27622 | 2020-05-08 11:40:20 |
| R39.htm | 14674 | 2020-05-08 11:40:20 |
| R4.htm | 85072 | 2020-05-08 11:40:20 |
| R40.htm | 65409 | 2020-05-08 11:40:20 |
| R41.htm | 26983 | 2020-05-08 11:40:20 |
| R42.htm | 30396 | 2020-05-08 11:40:20 |
| R43.htm | 38609 | 2020-05-08 11:40:20 |
| R44.htm | 44892 | 2020-05-08 11:40:20 |
| R45.htm | 6188 | 2020-05-08 11:40:20 |
| R46.htm | 27438 | 2020-05-08 11:40:20 |
| R47.htm | 6720 | 2020-05-08 11:40:20 |
| R48.htm | 30226 | 2020-05-08 11:40:20 |
| R49.htm | 4902 | 2020-05-08 11:40:20 |
| R5.htm | 27127 | 2020-05-08 11:40:20 |
| R50.htm | 22513 | 2020-05-08 11:40:20 |
| R51.htm | 20486 | 2020-05-08 11:40:20 |
| R52.htm | 23272 | 2020-05-08 11:40:20 |
| R53.htm | 12441 | 2020-05-08 11:40:20 |
| R54.htm | 47117 | 2020-05-08 11:40:20 |
| R55.htm | 30669 | 2020-05-08 11:40:20 |
| R56.htm | 26589 | 2020-05-08 11:40:20 |
| R57.htm | 6049 | 2020-05-08 11:40:20 |
| R58.htm | 11467 | 2020-05-08 11:40:20 |
| R59.htm | 7641 | 2020-05-08 11:40:20 |
| R6.htm | 28991 | 2020-05-08 11:40:20 |
| R60.htm | 8688 | 2020-05-08 11:40:20 |
| R61.htm | 13804 | 2020-05-08 11:40:20 |
| R62.htm | 21702 | 2020-05-08 11:40:20 |
| R7.htm | 16627 | 2020-05-08 11:40:20 |
| R8.htm | 91974 | 2020-05-08 11:40:20 |
| R9.htm | 11588 | 2020-05-08 11:40:20 |
| report.css | 2767 | 2020-05-08 11:40:20 |
| Show.js | 1085 | 2020-05-08 11:40:20 |