Fair Value Measurements (Details) - Schedule of aggregate fair values of the non-financial assets by their levels in the fair value hierarchy - USD ($)	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
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			$ 82,975	$ 4,247,977
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			$ 82,975	$ 4,247,977