Investment in 111 West 57th Partners LLC, Additional Information Regarding Equity Investment in 111 West 57th Property (Details)	3 Months Ended	12 Months Ended
	Mar. 31, 2014	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Additional Information Regarding Equity Investment in 111 West 57th Property [Abstract]
Internal rate of return		20.00%
Interest Payable		$ 20,000	$ 85,000
Percentage of capital received		150.00%
Cash split		10/90
Members [Member]
Additional Information Regarding Equity Investment in 111 West 57th Property [Abstract]
Percentage of cash distribution in proportion to ownership interest in Joint Venture upon achieving target		100.00%
Percentage of cash distribution in proportion to ownership interest in Joint Venture		50.00%
Sponsors [Member]
Additional Information Regarding Equity Investment in 111 West 57th Property [Abstract]
Percentage of cash distribution in proportion to ownership interest in Joint Venture upon achieving target		100.00%
Percentage of cash distribution in proportion to ownership interest in Joint Venture		50.00%
R. A. Bianco [Member]
Additional Information Regarding Equity Investment in 111 West 57th Property [Abstract]
Subordinated participation interest	10.00%	10.00%
Voting rights		0.00%
Percentage of distribution on company's initial investment to be received prior to CEO receiving percentage distribution	150.00%
Interest expense, subordinated participation interest		$ 0
Interest Payable		$ 0
Capital LLC [Member]
Additional Information Regarding Equity Investment in 111 West 57th Property [Abstract]
Internal rate of return		20.00%
Subordinated participation interest		90.00%
Pro rata share ratio		0.5