Note 7 - Notes Payable (Tables)

12 Months Ended

Dec. 31, 2019

Notes Tables

Schedule of Long-term Debt Instruments [Table Text Block]

Property	Maturity	Interest Rate	December 31, 2019			December 31, 2018
Flatbush Gardens, Brooklyn, NY (a)	3/1/2028	3.50%	$	246,000		$	246,000
250 Livingston Street, Brooklyn, NY (b)	12/9/2020	LIBOR + 2.15%		—			75,000
250 Livingston Street, Brooklyn, NY (b)	6/6/2029	3.63%		125,000			—
141 Livingston Street, Brooklyn, NY (c)	6/1/2028	3.875%		75,817			77,333
Tribeca House, Manhattan, NY (d)	3/6/2028	4.506%		360,000			360,000
Aspen, Manhattan, NY (e)	7/1/2028	3.68%		66,862			68,199
Clover House, Brooklyn, NY (f)	5/9/2020	LIBOR + 3.85%		—			64,731
Clover House, Brooklyn, NY (f)	12/1/2029	3.53%		82,000			—
10 West 65 th Street, Manhattan, NY (g)	11/1/2027	3.375%		34,295			34,350
1010 Pacific Street, Brooklyn, NY (h)	12/24/2020	LIBOR + 3.60%		19,457			—
Total debt			$	1,009,431		$	925,613
Unamortized debt issuance costs				(11,528	)		(12,049	)
Total debt, net of unamortized debt issuance costs			$	997,903		$	913,564

Schedule of Maturities of Long-term Debt [Table Text Block]

2020	$	24,700
2021		8,553
2022		8,866
2023		9,191
2024		9,521
Thereafter		948,600
Total	$	1,009,431