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Interest and Other Income (Expense), Net	6 Months Ended
Interest and Other Income (Expense), Net	Jun. 30, 2019
Interest and Other Income (Expense), Net
Interest and Other Income (Expense), Net	15. Interest and Other Income (Expense), Net For the six months ended June 30, 2019 the Company recognized approximately $0.1 million other expense primarily related to the mark-to-market of Golden Tag shares held by the Company (see Note 6). For the six months ended June 30, 2018 the Company recognized approximately $0.1 million of other income primarily related to the mark-to-market of Golden Tag shares held by the Company (see Note 6).