Segment Information (Details 2) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 35,794	$ 35,048
UNITED STATES
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	30,680	30,037
MALAYSIA
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	5,110	5,007
Other Countries [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Total assets	$ 4	$ 4