Commitments and Contingencies (Details Textual) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		9 Months Ended		28 Months Ended
	Sep. 30, 2013	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Mar. 31, 2017
Income Tax Contingency [Line Items]
Operating lease, weighted average remaining lease term		37 years 8 months 12 days		37 years 8 months 12 days
Operating lease, weighted average discount rate, percent		5.20%		5.20%
Operating lease, rent expense		$ 409	$ 394	$ 1,200	$ 1,200
Tax protection agreements period (in years)						10 years
Litigation settlement, amount awarded to other party				1,400
Litigation settlement expense				$ 950
Terranomics Crossroads Associates LP Member and SARM Five Points LLC
Income Tax Contingency [Line Items]
Tax protection agreements period (in years)	12 years