Long-Term Debt (Details Narrative) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended		12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2017	Jun. 30, 2020	Jun. 30, 2019	Dec. 31, 2019	Feb. 06, 2019	Nov. 17, 2017
Capitalized interest	$ 940	$ 705		$ 1,875	$ 1,090
Debt cost amortization	34			68
Riverfront permanent loan	88,993			$ 88,993		$ 88,925
Dock 79 EagleBank
Term			120 months
Riverfront permanent loan								$ 90,000
Interest rate								4.125%
Payment terms			During the first 48 months of the loan term, the Joint Venture will make monthly payments of interest only, and thereafter, make monthly payments of principal and interest in equal installments based upon a 30-year amortization period.
Wells Fargo Level I
Commitment fee				0.15%
Interest rate over LIBOR				1.00%
Wells Fargo Level II
Commitment fee				0.20%
Interest rate over LIBOR				1.25%
Wells Fargo Level III
Commitment fee				0.25%
Interest rate over LIBOR				1.50%
Wells Fargo Bank, N.A.
Term						5 years
Revolving Credit Agreement							$ 20,000
Letters of credit issued	411			$ 411
Borrowed under the revolver	0			0
Available for borrowing	19,589			19,589
Available to pay dividends or repurchase stock	$ 219,000			$ 219,000
Letter of credit fee				1.00%
Interest rate	1.17825%			1.17825%
Covenant compliance				all