Annual report pursuant to Section 13 and 15(d)

Income Taxes (Unrecognized Tax Benefit) (Details)

v3.19.1
Income Taxes (Unrecognized Tax Benefit) (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]    
Balance at January 1, $ 526 $ 503
Increases in tax positions for prior years 0 (33)
Increases in tax positions for current years 97 56
Balance at December 31, $ 623 $ 526