Commitments and Contingencies	6 Months Ended
Jun. 30, 2015
Commitments And Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 11. Commitments and Contingencies Legal Matters The Company’s industry is characterized by frequent claims and litigation, including claims regarding intellectual property and product liability. As a result, the Company may be subject to various legal proceedings from time to time. The results of any current or future litigation cannot be predicted with certainty, and regardless of the outcome, litigation can have an adverse impact on us because of defense and settlement costs, diversion of management resources, and other factors. Any current litigation is considered immaterial and counter claims have been assessed as remote. Severance Agreements and Retention Plans In October 2012, the Board of Directors and 60% of requisite preferred holders approved a plan to set aside no less than 15% of the proceeds of any sale of the Company to be distributed to the Company’s employees, directors or consultants as designated by the Board of Directors (the “HTG Employee Retention Plan”). The HTG Employee Retention Plan terminated pursuant to its terms upon the closing of the Company’s initial public offering. The Company has entered into employment agreements or other arrangements with certain named executive officers and have adopted an Employee Retention Plan for select participants, which provide salary continuation payments, bonuses and, in certain instances, the acceleration of the vesting of certain equity awards to individuals in the event that the individual is terminated other than for cause, as defined in the applicable agreements or arrangements. Indemnification Agreements In the course of operating our business, the Company has entered into, and continues to enter into, separate indemnification agreements with the Company’s directors and executive officers, in addition to the indemnification provided for in the Company’s amended and restated bylaws. These agreements may require the Company to indemnify its directors and executive officers for certain expenses incurred by a director executive officer in any action or proceeding arising out of their services as one of the Company’s directors or executive officers. Leases The Company leases office and laboratory space under two non-cancelable operating leases in Tucson, Arizona, which were set to expire in November and December 2015, respectively, as of June 30, 2015. Under the terms of the two Tucson leases, the Company had one option to extend the leases for five years at the end of the initial seven year lease term. The Company amended its existing facilities leases in August 2015 to extend the terms for five years and to undergo leasehold improvements to expand and improve its existing research, development, operations and administration office facilities. The lease amendment includes an increase in monthly rents for landlord borne facilities costs of approximately $804,000 over the remaining life of the leases (See Note 14). In addition to these lease term extensions, the Company expects to enter into a construction contract in the third quarter 2015 for the expansion and improvement of its laboratory, manufacturing and office spaces, representing an expected additional commitment of approximately $500,000. The leasehold improvements to both of our leased facilities are expected to be completed in the first half of 2016. Merck Non-Exclusive License Agreement In June 2012, the Company entered into a non-exclusive license agreement with Merck Sharp & Dohme Cor. (“Merck”) whereby the Company agreed to sublicense certain intellectual property related to breast cancer biomarkers with the intent to develop, manufacture and commercialize a diagnostic test utilizing this technology. The Company agreed to pay Merck certain contingent milestone payments between $50,000 and $1,000,000 and future royalties of 3%-6% of sales derived from such products developed that utilize the licensed technology. No amounts have been accrued or paid under this agreement as the Company has not achieved any of the milestone targets or developed any products that utilize the licensed technology.

Note 11. Commitments and Contingencies

Legal Matters

The Company’s industry is characterized by frequent claims and litigation, including claims regarding intellectual property and product liability. As a result, the Company may be subject to various legal proceedings from time to time. The results of any current or future litigation cannot be predicted with certainty, and regardless of the outcome, litigation can have an adverse impact on us because of defense and settlement costs, diversion of management resources, and other factors. Any current litigation is considered immaterial and counter claims have been assessed as remote.

Severance Agreements and Retention Plans

In October 2012, the Board of Directors and 60% of requisite preferred holders approved a plan to set aside no less than 15% of the proceeds of any sale of the Company to be distributed to the Company’s employees, directors or consultants as designated by the Board of Directors (the “HTG Employee Retention Plan”). The HTG Employee Retention Plan terminated pursuant to its terms upon the closing of the Company’s initial public offering.

The Company has entered into employment agreements or other arrangements with certain named executive officers and have adopted an Employee Retention Plan for select participants, which provide salary continuation payments, bonuses and, in certain instances, the acceleration of the vesting of certain equity awards to individuals in the event that the individual is terminated other than for cause, as defined in the applicable agreements or arrangements.

Indemnification Agreements

In the course of operating our business, the Company has entered into, and continues to enter into, separate indemnification agreements with the Company’s directors and executive officers, in addition to the indemnification provided for in the Company’s amended and restated bylaws. These agreements may require the Company to indemnify its directors and executive officers for certain expenses incurred by a director executive officer in any action or proceeding arising out of their services as one of the Company’s directors or executive officers.

Leases

The Company leases office and laboratory space under two non-cancelable operating leases in Tucson, Arizona, which were set to expire in November and December 2015, respectively, as of June 30, 2015. Under the terms of the two Tucson leases, the Company had one option to extend the leases for five years at the end of the initial seven year lease term. The Company amended its existing facilities leases in August 2015 to extend the terms for five years and to undergo leasehold improvements to expand and improve its existing research, development, operations and administration office facilities. The lease amendment includes an increase in monthly rents for landlord borne facilities costs of approximately $804,000 over the remaining life of the leases (See Note 14). In addition to these lease term extensions, the Company expects to enter into a construction contract in the third quarter 2015 for the expansion and improvement of its laboratory, manufacturing and office spaces, representing an expected additional commitment of approximately $500,000. The leasehold improvements to both of our leased facilities are expected to be completed in the first half of 2016.

Merck Non-Exclusive License Agreement

In June 2012, the Company entered into a non-exclusive license agreement with Merck Sharp & Dohme Cor. (“Merck”) whereby the Company agreed to sublicense certain intellectual property related to breast cancer biomarkers with the intent to develop, manufacture and commercialize a diagnostic test utilizing this technology. The Company agreed to pay Merck certain contingent milestone payments between $50,000 and $1,000,000 and future royalties of 3%-6% of sales derived from such products developed that utilize the licensed technology. No amounts have been accrued or paid under this agreement as the Company has not achieved any of the milestone targets or developed any products that utilize the licensed technology.