Subsequent Events	3 Months Ended
Mar. 31, 2022
Subsequent Events [Abstract]
Subsequent Events	Note Q - Subsequent EventOn October 13, 2021, the LLC, as the Sellers Representative of the AC Sellers of stock and options of Advanced Circuits, a majority owned subsidiary of the LLC, entered into a definitive Agreement and Plan of Merger with Tempo Automation, Inc. (“AC Buyer”), Aspen Acquisition Sub, Inc. (“AC Merger Sub”) and Advanced Circuits, pursuant to which AC Buyer will acquire all of the issued and outstanding securities of Advanced Circuits, the parent company of the operating entity, Advanced Circuits, Inc., through a merger of AC Merger Sub with and into Advanced Circuits, with Advanced Circuits surviving the merger and becoming a wholly owned subsidiary of AC Buyer (the “AC Merger”). The AC Merger is conditioned on, among other things, the closing of a business combination between AC Buyer and a publicly traded special purpose acquisition company (a “SPAC”). In connection with the AC Merger, AC Buyer announced its entry into a definitive merger agreement for a business combination (the “SPAC Transaction”) with a SPAC, ACE Convergence Acquisition Corp. (“ACE”). In order to obtain shareholder approval of the SPAC Transaction, ACE had previously scheduled and announced an extraordinary general meeting of shareholders for May 5, 2022. On May 2, 2022, ACE postponed the extraordinary general meeting to allow additional time to revise and finalize its financing arrangements with respect to the SPAC Transaction.

Subsequent Events

3 Months Ended

Mar. 31, 2022

Note Q - Subsequent EventOn October 13, 2021, the LLC, as the Sellers Representative of the AC Sellers of stock and options of Advanced Circuits, a majority owned subsidiary of the LLC, entered into a definitive Agreement and Plan of Merger with Tempo Automation, Inc. (“AC Buyer”), Aspen Acquisition Sub, Inc. (“AC Merger Sub”) and Advanced Circuits, pursuant to which AC Buyer will acquire all of the issued and outstanding securities of Advanced Circuits, the parent company of the operating entity, Advanced Circuits, Inc., through a merger of AC Merger Sub with and into Advanced Circuits, with Advanced Circuits surviving the merger and becoming a wholly owned subsidiary of AC Buyer (the “AC Merger”). The AC Merger is conditioned on, among other things, the closing of a business combination between AC Buyer and a publicly traded special purpose acquisition company (a “SPAC”). In connection with the AC Merger, AC Buyer announced its entry into a definitive merger agreement for a business combination (the “SPAC Transaction”) with a SPAC, ACE Convergence Acquisition Corp. (“ACE”). In order to obtain shareholder approval of the SPAC Transaction, ACE had previously scheduled and announced an extraordinary general meeting of shareholders for May 5, 2022. On May 2, 2022, ACE postponed the extraordinary general meeting to allow additional time to revise and finalize its financing arrangements with respect to the SPAC Transaction.