Commitments and Contingencies (Details Textual) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		28 Months Ended
	Sep. 30, 2013	Mar. 31, 2019	Mar. 31, 2018	Mar. 31, 2017
Income Tax Contingency [Line Items]
Operating lease, weighted average remaining lease term		38 years 1 month 6 days
Operating lease, weighted average discount rate, percent		5.20%
Operating lease, rent expense		$ 412	$ 378
Tax protection agreements period (in years)				10 years
Terranomics Crossroads Associates LP Member and SARM Five Points LLC
Income Tax Contingency [Line Items]
Tax protection agreements period (in years)	12 years