Leases (Details-1) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2019	Sep. 30, 2019
Lease Cost [Abstract]
Amortization of leased assets, Depreciation and amortization	$ 425	$ 1,295
Interest on lease liabilities, Interest expense, net	199	597
Operating lease expense, Other operations and maintenance	32	92
Total lease expense	$ 656	$ 1,984