Compensatory Plan Obligations	12 Months Ended
Dec. 31, 2016
Restructuring and Related Activities [Abstract]
Compensatory Plan Obligations	Compensatory Plan Obligations Compensatory Plan with Services Business Employees In connection with the Company's sale of its Services Business, which is more fully described in Note 13, the Company designed a compensatory plan to promote the retention of services of its non-executive employees supporting that business (the "Services Business Plan"). The Company's board of directors adopted, and the Company communicated, the material terms of the Services Business Plan prior to June 30, 2015, to all non-executive employees of the Services Business. The Services Business Plan terms provided for certain cash compensation payments, as well as modifications to the terms of currently outstanding stock options held by such non-executive employees, as more completely described below, upon the successful closing of the sale of the Services Business. The sale closed in July 2015 (see Note 13). The Services Business Plan meets the definition of an exit and disposal activity pursuant to FASB ASC 420--Exit and Disposal Cost Obligations and all related expenses incurred have been presented in discontinued operations in the statements of operations in the period incurred. The Services Business Plan provided that in the event a non-executive employee of the Services Business was not offered a comparable position by Accuratus, the Company would provide severance payments to such employees. The Company terminated certain employees in June 2015 (the "June 2015 Terminated Employees") who became eligible for severance benefits totaling approximately $999 pursuant to the terms of the Services Business Plan, which was expensed in the quarterly period ended June 30, 2015. As of December 31, 2016, the remaining severance obligation for the June 2015 Terminated Employees was $0. The Services Business Plan also provided for certain amendments to the terms of the outstanding stock option awards held by the June 2015 terminated employees. In July 2015, pursuant to the Services Business Plan, the Company paid cash totaling approximately $215 to certain non-executive employees of the Services Business representing an incentive payment upon the closing of the sale of the Services Business. In addition, all non-executive employees of the Services Business were eligible to receive a cash retention compensation payment from the Company on the earlier of (i) the six month anniversary of the closing of the sale transaction, provided that they remained employed by Accuratus as of such date, or (ii) the date of termination of such employee by Accuratus without good cause. Maximum cash retention compensation payments could have totaled approximately $814 under the Services Business Plan, if all service business employees had remained eligible pursuant to the terms of the Services Business Plan. The Company incurred these obligations on the date of the sale of the Services Business in July 2015; therefore, the estimated fair value of the compensation expense associated with these cash payments and obligations was recognized during the quarterly period ended September 30, 2015. As of December 31, 2016, after adjusting for employees who forfeited their benefits under the Services Business Plan, the Company's liability is $0. This liability was satisfied in January 2016 when the Company paid all cash retention compensation payments to the former employees. The Services Business Plan also includes certain amendments to the terms of the eligible employees' outstanding stock option awards. Compensatory Arrangement with Employees of the Company's Continuing Operations In connection with the Company's relocation of its continuing operations to Jersey City, New Jersey, the Company designed a compensatory plan to promote the retention of services of non-executive employees supporting its continuing operations (the "Retention Plan"). The Company's board of directors adopted, and the Company communicated, the material terms of the Retention Plan prior to June 30, 2015, to all non-executive employees supporting the Company's continuing operations. The Retention Plan terms provided for certain cash compensation payments and severance payments, as well as modifications to the terms of currently outstanding stock options held by such non-executive employees, as more completely described below. The Company has concluded that the Retention Plan meets the definition of an exit and disposal activity pursuant to FASB ASC 420--Exit and Disposal Cost Obligations as of June 30, 2015, and all related expenses incurred have been presented in continuing operations in the statements of operations. The Retention Plan provided that non-executive employees were eligible to receive cash bonuses, severance payments and related benefit premiums, provided that all current employees remained employed through December 31, 2015 and were not terminated for cause. The Retention Plan also provided that if the Company and an employee agreed upon a services termination date earlier than December 31, 2015 (the "Release Date"), the employee would remain eligible for all terms of the Retention Plan. The Company accrued this obligation over the remaining future service period required by the employees through the earlier of the Release Date or December 31, 2015. During the year ended December 31, 2015, the Company recognized total expense of $1,012, which was included in research and development and selling, general, and administrative expenses in the accompanying statements of operations. As of December 31, 2016, the remaining obligation was $0. The Retention Plan also includes certain amendments to the terms of the eligible employees' outstanding stock option awards. Compensatory Arrangements with Former Executive Officers Charles F. Osborne, Jr., the Company’s former chief financial officer, resigned from the Company effective June 30, 2015. The Company's compensation committee of the board of directors approved a compensatory arrangement for Mr. Osborne that provided for certain payments and benefits, including: (i) a cash payment of approximately $138 upon his resignation on June 30, 2015; (ii) cash severance payments totaling approximately $179, which was equal to seven months of Mr. Osborne’s then effective base salary, paid over seven months commencing with the first payroll period following the resignation date; (iii) a payment representing a contribution Mr. Osborne can use towards continuing COBRA premiums for medical, dental, and vision group health coverage for a period up to seven months after the resignation date; and (iv) certain amendments to the terms of Mr. Osborne's outstanding stock option awards (see Note 10). The cash severance payments and related benefit premiums and payroll taxes totaled approximately $335 and were expensed in the quarterly period ended June 30, 2015. As of December 31, 2016, the remaining obligation of $0 is included in accrued severance and retention liabilities in the accompanying balance sheet. Yves J. Ribeill, Ph.D. resigned as President effective July 21, 2015. The Company and Dr. Ribeill entered into an agreement, effective July 21, 2015, (the “Separation Agreement”), providing for certain payments and benefits to Dr. Ribeill, including: (i) a cash payment of approximately $100 upon the effective date of his resignation; (ii) cash severance payments totaling approximately $900, paid over 12 months commencing with the first payroll period following the resignation date; (iii) a payment representing a contribution Dr. Ribeill can use towards continuing COBRA premiums for medical, dental, and vision group health coverage after the resignation date; and (iv) certain amendments to the terms of Dr. Ribeill's outstanding stock option awards (see Note 10). The cash severance payments and related benefit premiums and payroll taxes totaled approximately $1,046 as of July 21, 2015, which was recognized as expense in the quarterly period ended September 30, 2015. As of December 31, 2016, the remaining obligation of $0 is included in accrued severance and retention liabilities in the accompanying balance sheet.

Compensatory Plan Obligations

Compensatory Plan with Services Business Employees

In connection with the Company's sale of its Services Business, which is more fully described in Note 13, the Company designed a compensatory plan to promote the retention of services of its non-executive employees supporting that business (the "Services Business Plan"). The Company's board of directors adopted, and the Company communicated, the material terms of the Services Business Plan prior to June 30, 2015, to all non-executive employees of the Services Business. The Services Business Plan terms provided for certain cash compensation payments, as well as modifications to the terms of currently outstanding stock options held by such non-executive employees, as more completely described below, upon the successful closing of the sale of the Services Business. The sale closed in July 2015 (see Note 13). The Services Business Plan meets the definition of an exit and disposal activity pursuant to FASB ASC 420--Exit and Disposal Cost Obligations and all related expenses incurred have been presented in discontinued operations in the statements of operations in the period incurred.

The Services Business Plan provided that in the event a non-executive employee of the Services Business was not offered a comparable position by Accuratus, the Company would provide severance payments to such employees. The Company terminated certain employees in June 2015 (the "June 2015 Terminated Employees") who became eligible for severance benefits totaling approximately $999 pursuant to the terms of the Services Business Plan, which was expensed in the quarterly period ended June 30, 2015. As of December 31, 2016, the remaining severance obligation for the June 2015 Terminated Employees was $0. The Services Business Plan also provided for certain amendments to the terms of the outstanding stock option awards held by the June 2015 terminated employees.

In July 2015, pursuant to the Services Business Plan, the Company paid cash totaling approximately $215 to certain non-executive employees of the Services Business representing an incentive payment upon the closing of the sale of the Services Business. In addition, all non-executive employees of the Services Business were eligible to receive a cash retention compensation payment from the Company on the earlier of (i) the six month anniversary of the closing of the sale transaction, provided that they remained employed by Accuratus as of such date, or (ii) the date of termination of such employee by Accuratus without good cause. Maximum cash retention compensation payments could have totaled approximately $814 under the Services Business Plan, if all service business employees had remained eligible pursuant to the terms of the Services Business Plan. The Company incurred these obligations on the date of the sale of the Services Business in July 2015; therefore, the estimated fair value of the compensation expense associated with these cash payments and obligations was recognized during the quarterly period ended September 30, 2015. As of December 31, 2016, after adjusting for employees who forfeited their benefits under the Services Business Plan, the Company's liability is $0. This liability was satisfied in January 2016 when the Company paid all cash retention compensation payments to the former employees.

The Services Business Plan also includes certain amendments to the terms of the eligible employees' outstanding stock option awards.

Compensatory Arrangement with Employees of the Company's Continuing Operations

In connection with the Company's relocation of its continuing operations to Jersey City, New Jersey, the Company designed a compensatory plan to promote the retention of services of non-executive employees supporting its continuing operations (the "Retention Plan"). The Company's board of directors adopted, and the Company communicated, the material terms of the Retention Plan prior to June 30, 2015, to all non-executive employees supporting the Company's continuing operations. The Retention Plan terms provided for certain cash compensation payments and severance payments, as well as modifications to the terms of currently outstanding stock options held by such non-executive employees, as more completely described below. The Company has concluded that the Retention Plan meets the definition of an exit and disposal activity pursuant to FASB ASC 420--Exit and Disposal Cost Obligations as of June 30, 2015, and all related expenses incurred have been presented in continuing operations in the statements of operations.

The Retention Plan provided that non-executive employees were eligible to receive cash bonuses, severance payments and related benefit premiums, provided that all current employees remained employed through December 31, 2015 and were not terminated for cause. The Retention Plan also provided that if the Company and an employee agreed upon a services termination date earlier than December 31, 2015 (the "Release Date"), the employee would remain eligible for all terms of the Retention Plan. The Company accrued this obligation over the remaining future service period required by the employees through the earlier of the Release Date or December 31, 2015. During the year ended December 31, 2015, the Company recognized total expense of $1,012, which was included in research and development and selling, general, and administrative expenses in the accompanying statements of operations. As of December 31, 2016, the remaining obligation was $0.

The Retention Plan also includes certain amendments to the terms of the eligible employees' outstanding stock option awards.

Compensatory Arrangements with Former Executive Officers

Charles F. Osborne, Jr., the Company’s former chief financial officer, resigned from the Company effective June 30, 2015. The Company's compensation committee of the board of directors approved a compensatory arrangement for Mr. Osborne that provided for certain payments and benefits, including: (i) a cash payment of approximately $138 upon his resignation on June 30, 2015; (ii) cash severance payments totaling approximately $179, which was equal to seven months of Mr. Osborne’s then effective base salary, paid over seven months commencing with the first payroll period following the resignation date; (iii) a payment representing a contribution Mr. Osborne can use towards continuing COBRA premiums for medical, dental, and vision group health coverage for a period up to seven months after the resignation date; and (iv) certain amendments to the terms of Mr. Osborne's outstanding stock option awards (see Note 10). The cash severance payments and related benefit premiums and payroll taxes totaled approximately $335 and were expensed in the quarterly period ended June 30, 2015. As of December 31, 2016, the remaining obligation of $0 is included in accrued severance and retention liabilities in the accompanying balance sheet.

Yves J. Ribeill, Ph.D. resigned as President effective July 21, 2015. The Company and Dr. Ribeill entered into an agreement, effective July 21, 2015, (the “Separation Agreement”), providing for certain payments and benefits to Dr. Ribeill, including: (i) a cash payment of approximately $100 upon the effective date of his resignation; (ii) cash severance payments totaling approximately $900, paid over 12 months commencing with the first payroll period following the resignation date; (iii) a payment representing a contribution Dr. Ribeill can use towards continuing COBRA premiums for medical, dental, and vision group health coverage after the resignation date; and (iv) certain amendments to the terms of Dr. Ribeill's outstanding stock option awards (see Note 10). The cash severance payments and related benefit premiums and payroll taxes totaled approximately $1,046 as of July 21, 2015, which was recognized as expense in the quarterly period ended September 30, 2015. As of December 31, 2016, the remaining obligation of $0 is included in accrued severance and retention liabilities in the accompanying balance sheet.