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Other Liabilities (Schedule of Long Term Liabilities) (Details) - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Other Liabilities [Abstract]    
Indemnification liabilities (see Note 13) $ 167 $ 184
Liabilities for uncertain tax positions 14,052 13,315
Long-term liabilities $ 14,219 $ 13,499