Consolidated Statements Of Comprehensive Income - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Statement Of Income And Comprehensive Income [Abstract]
Net income	$ 8,764,000	$ 21,781,000	$ 28,691,000
Other comprehensive income - unrealized gain (loss) on change in fair value of cash flow hedges
Other comprehensive income - unrealized gain (loss) on change in fair value of cash flow hedges	4,901,000	(918,000)	(1,858,000)
Comprehensive income	13,665,000	20,863,000	26,833,000
Comprehensive loss attributable to noncontrolling interests	155,000	370,000	305,000
Comprehensive income attributable to Cedar Realty Trust, Inc.	$ 13,820,000	$ 21,233,000	$ 27,138,000