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Stock Based Compensation	3 Months Ended
Stock Based Compensation	Mar. 31, 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 $0.2 million for both of the three month periods ended March 31, 2018 and March 31, 2017. The amount recorded for the three months ended March 31, 2018 and March 31, 2017 was net of benefits of zero and $13,000, respectively, 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 March 31, 2018, the aggregate unrecognized compensation expense related to unvested equity awards was $1.0 million (net of estimated forfeitures), which is expected to be recognized as compensation expense in fiscal years 2018 through 2020. For the three month periods ended March 31, 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.