Building Sale and Leaseback (Details) - USD ($) $ in Thousands		6 Months Ended
Aug. 03, 2018	Jun. 30, 2019
Building Sale and Leaseback (Textual)
Proceeds from sale	$ 10,500
Advance to buyer	130
Gain on sale	$ 7,175
Lease obligation, description		The Lease has an initial term of five years and allows the Company to extend the term for an additional five years following the initial term. The Company is obligated to pay base rent of approximately $837 for the first year of the Lease with the amount of base rent adjusted for each subsequent year to equal 102.5% of the preceding year's base rent.

Building Sale and Leaseback (Textual)

130

The Lease has an initial term of five years and allows the Company to extend the term for an additional five years following the initial term. The Company is obligated to pay base rent of approximately $837 for the first year of the Lease with the amount of base rent adjusted for each subsequent year to equal 102.5% of the preceding year's base rent.