How to get a concept item that has no dimensions?

[jfraschilla]

The results of a facts.query().by_concept('us-gaap:CostOfRevenue') are shown below. How can I get the item that does not have a dimension (i.e. I want the first item in the output shown below without using indexing)?

Is there another way to get it without using the following custom query?

facts.query()\
    .by_statement_type('IncomeStatement')\
    .by_period_key(period_key)\
    .by_concept('us-gaap:CostOfRevenue')\
    .by_custom(lambda f: not any('dim_' in key for key in f))\
    .to_dataframe()

[dgunning]

That would be one way of doing it. Because this is useful I added the ability to filter by_dimension(None) in Release 4.2.1

c = Company("NVDA")
f = c.latest("10-K")
xb = XBRL.from_filing(f)
facts = (xb.query()
             .by_statement_type('IncomeStatement')
             .by_concept('us-gaap:CostOfRevenue')
             .by_dimension(None)
             .to_dataframe('concept','label', 'value', 'dim_us-gaap_NatureOfExpenseAxis')
             )

[jfraschilla]

Thank you