Fair Value Measurements (Details) - Schedule of aggregate fair values of the non-financial assets by their levels in the fair value hierarchy - USD ($)	Sep. 30, 2021	Dec. 31, 2020
Fair Value Measurements (Details) - Schedule of aggregate fair values of the non-financial assets by their levels in the fair value hierarchy [Line Items]
Investment in Avalon Jubilee, LLC
Level 1 [Member]
Fair Value Measurements (Details) - Schedule of aggregate fair values of the non-financial assets by their levels in the fair value hierarchy [Line Items]
Investment in Avalon Jubilee, LLC
Level 2 [Member]
Fair Value Measurements (Details) - Schedule of aggregate fair values of the non-financial assets by their levels in the fair value hierarchy [Line Items]
Investment in Avalon Jubilee, LLC
Level 3 [Member]
Fair Value Measurements (Details) - Schedule of aggregate fair values of the non-financial assets by their levels in the fair value hierarchy [Line Items]
Investment in Avalon Jubilee, LLC