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Leases (Details Textual) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
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Jun. 30, 2019 | Jun. 30, 2019
Leases (Textual) |  |
Operating lease, description |  | Our leases have remaining lease terms of one year to three years, and our two primary operating leases include options to extend the leases for one to three years; those operating leases also include options to terminate the leases within one year.
Extended, description |  | Our corporate office lease is automatically renewed at a cost increase of 2% on a yearly basis, unless we provide written notice six months prior to expiration date.
Short term lease costs | $ 132 | $ 266

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- Definition Amount of short-term lease cost, excluding expense for lease with term of one month or less. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918686-209980 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 55 -Paragraph 53 -URI http://asc.fasb.org/extlink&oid=77888399&loc=SL77918982-209971 + Details
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