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Stock Based Compensation	6 Months Ended
Stock Based Compensation	Jun. 30, 2018
Share-based Compensation [Abstract]
Stock Based Compensation	Stock Based Compensation The Company applies the fair value recognition provisions of ASC Topic 718. The Company recorded stock based compensation of $0.3 million and $0.4 million for the three and six month periods ended June 30, 2018, respectively. The Company recorded stock based compensation of $0.1 million and $0.2 million for the three and six month periods ended June 30, 2017, respectively. The amount recorded for both the three and six month periods ended June 30, 2018 were not netted from any benefits as a result of forfeitures of unvested stock awards prior to completion of the requisite service period and/or failure to achieve performance criteria. The amount recorded for both the three and six month periods ended June 30, 2017 were net of benefits of $10,000 as a result of forfeitures of unvested stock awards prior to completion of the requisite service period and/or failure to achieve performance criteria. At June 30, 2018, the aggregate unrecognized compensation expense related to unvested equity awards was $1.4 million (net of estimated forfeitures), which is expected to be recognized as compensation expense in fiscal years 2018 through 2020. For the three and six month periods ended June 30, 2018 and 2017, the Company recognized compensation expense related to performance awards based on its estimate of the probability of achievement in accordance with ASC Topic 718.