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Accumulated Other Comprehensive Income/(Loss) (Details) $ in Thousands | 12 Months Ended
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Dec. 31, 2017 USD ($)
Accumulated other comprehensive income/(loss) |
Balances, beginning of period | $ 40,525
Balances, end of period | 29,083
Accumulated other comprehensive income/(loss) net of tax |
Balances, beginning of period | 40,525
Balances, end of period | 29,083
Accumulated Other Comprehensive Income/(Loss) |
Accumulated other comprehensive income/(loss) |
Balances, beginning of period | 15
Balances, end of period | (2)
Accumulated other comprehensive income/(loss) net of tax |
Balances, beginning of period | 15
Balances, end of period | (2)
Accumulated Other Comprehensive Income/(Loss) | Accounting Standards Update 2016-01 |
Accumulated other comprehensive income/(loss) |
Cumulative adjustment related to Accounting Standard Update 2016-01 | 2
Accumulated due to realization of gain on marketable securities |
Accumulated other comprehensive income/(loss) |
Other comprehensive gain due to change in fair market value of marketable securities during period before reclassifications, before tax | (17)
Accumulated other comprehensive income/(loss) net of tax |
Other comprehensive gain due to change in fair market value of marketable securities during period before reclassifications, net of tax | (14)
Accumulated other comprehensive income after tax |
Accumulated other comprehensive income/(loss) |
Balances, beginning of period | 14
Accumulated other comprehensive income/(loss) net of tax |
Balances, beginning of period | $ 14

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