13. Commitments and Contingencies	6 Months Ended
Sep. 30, 2015
Commitments and Contingencies Disclosure [Abstract]
13. Commitments and Contingencies	EMPLOYMENT CONTRACTS We entered into an employment agreement with our Chairman of the Board (“Chairman”) effective April 1, 1999. The agreement, which is cancelable by either party upon sixty days’ notice, will be in effect until the Chairman retires or ceases to be employed by us. Under the terms of the agreement, if the Chairman is terminated he may become eligible to receive a salary continuation payment in the amount of at least twelve months' base salary, which was increased to $385,000 per year in September 2015. We entered into an employment agreement with Dr. Tullis (“Tullis”) effective January 10, 2000 as our Chief Science Officer ("CSO"). Under the terms of the agreement, if Tullis is terminated he may become eligible to receive a salary continuation payment in the amount of twelve months base salary, which is $195,000 per year. LEASE COMMITMENTS We currently rent approximately 2,600 square feet of executive office space at 9635 Granite Ridge Drive, Suite 100, San Diego, CA 92123 at the rate of $6,054 per month on a four year lease that expires in January 2019. We also rent approximately 1,700 square feet of laboratory space at 11585 Sorrento Valley Road, Suite 109, San Diego, California 92121 at the rate of $4,168 per month on a one year lease that expires in November 2016. Our Exosome Sciences, Inc. subsidiary previously rented approximately 2,055 square feet of office and laboratory space at 11 Deer Park Drive, South Brunswick, NJ at the rate of $3,917 per month on a one year lease that expired in October 2015. In October 2015, Exosome Sciences, Inc. relocated to a different suite at the same office complex. That new suite is comprised of approximately 541 square feet of office and laboratory space and is located at 9 Deer Park Drive, South Brunswick, NJ at the rate of $1,352 per month under a month to month lease basis. Rent expense approximated $90,000 and $68,000 for the six month periods ended September 30, 2015 and 2014, respectively, and is included in general and administrative expenses in the condensed consolidated statements of operations. LEGAL MATTERS From time to time, claims are made against us in the ordinary course of business, which could result in litigation. Claims and associated litigation are subject to inherent uncertainties and unfavorable outcomes could occur, such as monetary damages, fines, penalties or injunctions prohibiting us from selling one or more products or engaging in other activities. The occurrence of an unfavorable outcome in any specific period could have a material adverse effect on our results of operations for that period or future periods. We are not presently a party to any pending or threatened legal proceedings.

13. Commitments and Contingencies

6 Months Ended

Sep. 30, 2015

Commitments and Contingencies Disclosure [Abstract]

EMPLOYMENT CONTRACTS

We entered into an employment agreement with our Chairman of the Board (“Chairman”) effective April 1, 1999. The agreement, which is cancelable by either party upon sixty days’ notice, will be in effect until the Chairman retires or ceases to be employed by us. Under the terms of the agreement, if the Chairman is terminated he may become eligible to receive a salary continuation payment in the amount of at least twelve months' base salary, which was increased to $385,000 per year in September 2015.

We entered into an employment agreement with Dr. Tullis (“Tullis”) effective January 10, 2000 as our Chief Science Officer ("CSO"). Under the terms of the agreement, if Tullis is terminated he may become eligible to receive a salary continuation payment in the amount of twelve months base salary, which is $195,000 per year.

LEASE COMMITMENTS

We currently rent approximately 2,600 square feet of executive office space at 9635 Granite Ridge Drive, Suite 100, San Diego, CA 92123 at the rate of $6,054 per month on a four year lease that expires in January 2019. We also rent approximately 1,700 square feet of laboratory space at 11585 Sorrento Valley Road, Suite 109, San Diego, California 92121 at the rate of $4,168 per month on a one year lease that expires in November 2016.

Our Exosome Sciences, Inc. subsidiary previously rented approximately 2,055 square feet of office and laboratory space at 11 Deer Park Drive, South Brunswick, NJ at the rate of $3,917 per month on a one year lease that expired in October 2015. In October 2015, Exosome Sciences, Inc. relocated to a different suite at the same office complex. That new suite is comprised of approximately 541 square feet of office and laboratory space and is located at 9 Deer Park Drive, South Brunswick, NJ at the rate of $1,352 per month under a month to month lease basis.

Rent expense approximated $90,000 and $68,000 for the six month periods ended September 30, 2015 and 2014, respectively, and is included in general and administrative expenses in the condensed consolidated statements of operations.

LEGAL MATTERS

From time to time, claims are made against us in the ordinary course of business, which could result in litigation. Claims and associated litigation are subject to inherent uncertainties and unfavorable outcomes could occur, such as monetary damages, fines, penalties or injunctions prohibiting us from selling one or more products or engaging in other activities.

The occurrence of an unfavorable outcome in any specific period could have a material adverse effect on our results of operations for that period or future periods. We are not presently a party to any pending or threatened legal proceedings.