Text Block Comparison: Securities Owned and Other Investments Not Readily Marketable Disclosure [Table Text Block] (us-gaap:SecuritiesOwnedAndOtherInvestmentsNotReadilyMarketableDisclosureTextBlock)

Documentation: Tabular disclosure of quantitative and qualitative information related to securities and other investments not readily marketable, including, but not limited to, thinly traded securities or investments, restricted securities and securities in nonpublic entities.

(For last 10-K submitted to SEC as of March 31, 2018)