Note 6

Convertible Debentures:

In the following table is a summary of the Company's convertible debentures.

	March 31, 2017		December 31, 2016
	(unaudited)
Senior secured 2.25% convertible debentures, net of unamortized debt discount of $23,742 and $24,314, respectively; and deferred financing costs of $512 and $524, respectively	$	7,702	$	7,174
Senior secured 4% convertible debentures, net of unamortized debt discount of $3,343 and $3,469, respectively; and deferred financing costs of $378 and $392, respectively		4,993		4,854
Total convertible debt	$	12,695	$	12,028

The Company issued $32,500 aggregate principal amount of Debentures (the "June 2015 Debentures") that, subject to certain ownership limitations and stockholder approval conditions, will be convertible into 8,666,668 shares of Company common stock at an initial conversion price of $3.75 per share (post reverse split). The Debentures bear interest at the rate of 2.25% per year, and, unless previously converted, will mature on the five-year anniversary of the date of issuance, June 22, 2020.

The June 2015 Debentures include a beneficial conversion feature valued at $27,300 that was recorded as a discount to the debentures. On the date of issuance the beneficial conversion feature value was calculated as the difference resulting from subtracting the conversion price of $3.75 from $6.90, the opening market value of the Company's common stock following the announcement of the transaction, multiplied by the number of common shares into which the June 2015 Debentures are convertible. This discount is being amortized over the five year life of the June 2015 Debentures using the effective interest method. The embedded conversion feature contains an anti-dilution provision that allows for downward exercise price adjustments in certain situations. The embedded conversion feature was not bifurcated as it did not meet all of the elements of a derivative.

On July 21, 2014, the Company entered into a definitive Securities Purchase Agreement (the "Purchase Agreement") with institutional investors (the "Investors") providing for the issuance of Senior Secured Convertible Debentures in the aggregate principal amount of $15,000, due, subject to the terms therein, in July 2019 (the "July 2014 Debentures"), and warrants (the "July 2014 Series A Warrants") to purchase up to an aggregate of 1,239,769 shares of common stock, $0.001 par value per share, at an exercise price of $2.45 per share expiring in July 2019. The July 2014 Debentures bear interest at an annual rate of 4%, payable quarterly or upon conversion into shares of common stock. The Debentures are convertible at any time into an aggregate of 1,169,595 shares of common stock at an initial conversion price of $12.825 per share (post reverse split). The Company's obligations under the July 2014 Debentures are secured by a first priority lien on all of the Company's intellectual property pursuant to the terms of a security agreement ("Security Agreement") dated July 21, 2014 among the Company and the Investors. In connection with the Purchase Agreement, the Company entered into a Registration Rights Agreement with the Investors pursuant to which the Company was obligated to file a registration statement to register for resale the shares of Common Stock issuable upon conversion of the Series B Preferred Stock (See Note 8, Warrants) and Debentures and upon exercise of the Warrants. Under the terms of the Registration Rights Agreement, the Company filed a registration statement on August 19, 2014, which was declared effective by the SEC on October 20, 2014 (File No. 333-198249).

For financial reporting purposes, the $15,000 funded by the Investors on July 21, 2014 was allocated first to the fair value of the obligation to issue the Warrants, amounting to $5,296, then to the intrinsic value of the beneficial conversion feature on the July 2014 Debentures of $4,565. The balance was further reduced by the fair value of warrants issued to the placement agent for services rendered of $491, resulting in an initial carrying value of the Debentures of $4,647. The initial debt discount on the July 2014 Debentures totaled $10,353 and is being amortized using the effective interest method over the five year life of the July 2014 Debentures.

During the three months ended March 31, 2016, the investors converted debentures amounting to $56 into 15,000 shares of common stock (post reverse split) for the June 2015 note. The debt discount and deferred financing cost adjustment resulting from the conversions increased interest expense by $43 for the three months ended March 31, 2017.

As a condition of the new note facility (See Note 7, Long-term Debt) the Debentures from both the 2014 and 2015 financings were amended. The Debentures holders' first priority lien was subordinated to the new term note facility. Additionally, as a condition of the term note facility, the maturity date of both Debentures was extended to June 30, 2021. The Company evaluated the modifications to determine if there was an extinguishment of debt. Based on the valuation, the discounted cash flows did not change by more than 10%, thus they were treated as a modification.

As of March 31, 2017, the total outstanding amount of Debentures was $40,671.