XML 22 R119.htm IDEA: XBRL DOCUMENT
v3.20.1

Subsequent Event (Details) | 1 Months Ended
--- | ---
Mar. 31, 2020
Subsequent Event [Member] | Maximum [Member] |
Subsequent Event [Line Items] |
Stock Repurchase Program, percentage | 3.00%

X
- Definition Stock Repurchase Program, Percentage + References No definition available. + Details
Name: | cfbk_StockRepurchaseProgramPercentage
Namespace Prefix: | cfbk_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_SubsequentEventTypeAxis=us-gaap_SubsequentEventMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_RangeAxis=srt_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |