Note 4 - Investment in Affiliate (Tables)

9 Months Ended

Sep. 30, 2021

Notes Tables

Equity Method Investments [Table Text Block]

	Ownership %						Investment in Affiliate Balance				Loss recorded in the Statements of Operations (b)
											For the Three Months Ended September 30,						For the Nine Months Ended September 30,
	September 30, 2021			December 31, 2020			September 30, 2021		December 31, 2020		2021			2020			2021			2020
HC Realty Series B Stock (a)		26.9	%		28.7	%	$	10,250	$	10,250	$	-			-		$	-			-
HC Realty common stock		7.2	%		7.7	%		1,423		1,822		(50	)		(124	)		(275	)		(301	)
Total		34.1	%		36.4	%	$	11,673	$	12,072	$	(50	)	$	(124	)	$	(275	)	$	(301	)