Leases (Details) - USD ($) $ in Thousands		3 Months Ended	9 Months Ended
		Sep. 30, 2019	Sep. 30, 2019
Leases [Abstract]
Operating lease cost	[1]	$ 145	$ 454
Finance lease cost:
Amortization of leased assets		153	471
Interest on lease liabilities		8	26
Total finance lease cost		$ 161	$ 497

[1] Includes short term lease costs of $27,000 and $93,000 for the three and nine months ended September 30, 2019, respectively.