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Leases (Details 2) - USD ($) $ in Thousands	Jun. 30, 2019	Dec. 31, 2018
Operating leases
Operating lease right-of-use assets	$ 728
Current portion of operating lease obligations	427
Total operating lease liabilities	900
Finance leases
Property and equipment, net	2,011	2,484
Current portion of finance lease obligations	547	570
Finance lease obligations, net of current portion	807	$ 1,133
Lease [Member]
Operating leases
Operating lease right-of-use assets	728
Current portion of operating lease obligations	427
Operating lease liabilities, net of current portion	266
Total operating lease liabilities	693
Finance leases
Property and equipment, at cost	3,368
Accumulated depreciation	(1,650)
Property and equipment, net	1,718
Current portion of finance lease obligations	547
Finance lease obligations, net of current portion	807
Total finance lease liabilities	$ 1,354

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