...
- New (document was created, but not recorded to the database)
- Not Posted (document was recorded, but not posted)
- Posted (document was posted)
- Marked for Deletion (document was marked to be deleted)
The reconciliation status of the document appears at the left lower corner of the form after the Bank Reconciliation document (in which this payment was matched to a bank transaction) was posted. Reconciliation statuses are used if the Bank Statement Reconciliations option is selected on the Administration > Settings > Money form and the Reconcile Bank Statements option is selected for the bank account master record. 
The Bank Receipt form. The Main tab (lower left corner)
For documents with the Matched reconciliation status, the Unmatch button appears to the right of status so that you can click it to undo matching of this document to a bank transaction.