Income Taxes (Details) - USD ($) $ in Millions |
3 Months Ended | |
|---|---|---|
Mar. 31, 2019 |
Dec. 31, 2018 |
|
| Income Tax Disclosure [Abstract] | ||
| Goodwill amortization period | 15 years | |
| Deferred tax assets, net | $ 1.4 | |
| Deferred tax assets, valuation allowance | $ 8.9 | |
| Operating loss carryforwards | $ 45.3 | |
| Portion subject to an IRS Section 382 limitation from 1999 | ||
| Income Tax Contingency [Line Items] | ||
| Operating loss carryforwards, limitations on use, amount | $ 0.1 |