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Leases (Details Textual) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 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 nine months prior to expiration date.
Short term lease costs $ 27 $ 93