Below is an context that describes a sql query, paired with an question that provides further information. Write an answer that appropriately completes the request.  # noqa: E501
### Context:
CREATE TABLE Documents_with_expenses (document_id VARCHAR, document_type_code VARCHAR); CREATE TABLE Documents (document_id VARCHAR, document_type_code VARCHAR)
### Question:
Show ids for all documents in type CV without expense budgets.
### Answer:
SELECT document_id FROM Documents WHERE document_type_code = "CV" EXCEPT SELECT document_id FROM Documents_with_expenses