Note 4. Debt

Long-term debt comprises:

	June 30, 2017			March 31, 2017
Total debt	$	84,000		$	84,000
Less current portion		—			—
Long-term debt	$	84,000		$	84,000
Deferred debt costs, net of amortization		(1,850	)		(3,296	)
	$	82,150		$	80,704

The Company’s debt at June 30, 2017 comprises the Secured Notes issued on October 14, 2016. On that date, the Company completed the private placement of up to $120 million aggregate principal amount of the Secured Notes and entered into an indenture governing the Secured Notes with the guarantors party thereto and U.S. Bank National Association, a national banking association, as trustee and collateral agent. The obligations of the Company under the indenture and the Secured Notes are unconditionally guaranteed on a secured basis by the guarantors, which include all the Company’s subsidiaries, and the indenture governing the Secured Notes contains customary events of default. The Company and its subsidiaries must also comply with certain customary affirmative and negative covenants, including a requirement to maintain six-months of interest in a cash reserve account maintained with the collateral agent.

The Company issued $84 million aggregate principal amount of the Secured Notes on October 14, 2016 and, so long as no event of default has occurred, the Company will issue an additional $36 million aggregate principal amount of the Secured Notes upon public announcement of field trial results for the MosaiQ IH Microarray that demonstrates greater than 99% concordance for the detection of blood group antigens and greater than 95% concordance for the detection of blood group antibodies when compared to predicate technologies for a pre-defined set of blood group antigens and antibodies. The Company paid $5 million of the net proceeds into the cash reserve account maintained with the collateral agent under the terms of the indenture.

Interest on the Secured Notes accrues at a rate of 12% per annum and is payable semi-annually on April 15 and October 15 of each year commencing on April 15, 2017. Commencing on April 15, 2019, the Company will also pay an installment of principal of the Secured Notes on each April 15 and October 15 until October 15, 2023 pursuant to a fixed amortization schedule.

In connection with the offering on October 14, 2016, the Company entered into royalty rights agreements, pursuant to which the Company sold to the note purchasers in the offering, the right to receive an aggregate payment equal to 2.0% of the aggregate net sales of MosaiQ instruments and consumables made in the donor testing market in the United States and the European Union. The royalty will be payable beginning on the date that the Company or its affiliates enters into a contract for the sale of MosaiQ instruments or consumables in the donor testing market in the European Union or the United States and will end on the last day of the calendar quarter in which the eighth anniversary of the first contract date occurs. The royalty rights agreements are treated as sales of future revenues that meet the requirements of Accounting Standards Codification Topic 470 “Debt” to be treated as debt. The estimated future cash outflows under the royalty rights agreements have been combined with the Secured Notes issuance costs and interest payable to calculate the effective interest rate of the Secured Notes and will be expensed through interest expenses using the effective interest rate method over the term of the Secured Notes and royalty rights agreements. Estimating the future cash outflows under the royalty rights agreements requires the Company to make certain estimates and assumptions about future sales of MosaiQ products. These estimates of the magnitude and timing of MosaiQ sales are subject to significant variability due to the current status of development of MosaiQproducts, and thus are subject to significant uncertainty. Therefore, the estimates are likely to change as the Company gains experience of marketing MosaiQ, which may result in future adjustments to the accretion of the interest expense and amortized cost based carrying value of the Secured Notes.

At June 30, 2017, the outstanding debt was repayable as follows:

Within 1 year	$	—
Between 1 and 2 years		6,720
Between 2 and 3 years		13,440
Between 3 and 4 years		15,960
Between 4 and 5 years		17,640
After 5 years		30,240
Total debt	$	84,000