Note 10 - Convertible Notes and Warrants

6 Months Ended

Jun. 30, 2014

Convertible Notes Warrant Liabilities And Fair Value Disclosure [Abstract]

Convertible Notes Warrant Liabilities And Fair Value Disclosure [Text Block]

10.          Convertible Notesand Warrants

Features of the Convertible Notes and Investor Warrants

On February 22, 2011 (the “Original Issue Date”), the Company entered into a Securities Purchase Agreement (“Purchase Agreement”) and a 5% Senior Secured Convertible Debenture Agreement (the “Note Agreement”) with GCP IV LLC (the “Investors” or “Holders”) pursuant to which the Company agreed to issue and sell in a private placement to the Investors an aggregate principal amount of $4,000,000 of convertible notes due February 22, 2014 (the “2011 Convertible Notes”) and warrants to purchase 40,000,000 shares of common stock at $0.15 per share (the “2011 Warrants”). Under the terms of the Purchase Agreement, the Company had the opportunity to raise up to an additional $2,000,000 from the Holders in two separate $1,000,000 tranches, based upon meeting certain operational milestones within certain periods of time. The deadline for achieving the operational milestones for the first $1,000,000 tranche expired in February 2012 without the Company achieving such milestones; however, the Investors agreed to waive both the deadline and the achievement of these milestones as a condition for the investment of the first additional $1,000,000 tranche (the “2012 Convertible Notes”) and issuance of warrants to purchase up to 10,000,000 shares of common stock at $0.15 per share and warrants to purchase up to 10,000,000 shares of common stock at $0.25 per share (the “2012 Warrants”) which was completed on July 2, 2012.  On January 16, 2013 the Company entered into an amendment and waiver to the Purchase Agreement to provide for the issuance of an additional $250,000 of 5% Senior Secured Convertible Debentures (the “Third Tranche Convertible Notes”) maturing on January 16, 2016 and warrants exercisable for a period of five years to purchase up to 2,500,000 shares of common stock at an exercise price of $0.15 per share (the “Third Tranche Warrants”).

The convertible notes and warrants and the Purchase Agreement covering both are secured by a security interest in all assets of the Company and its subsidiaries and all such obligations are guaranteed jointly and severally by the Company's subsidiaries. The convertible notes also contain non-financial covenants which limit the Company and its subsidiaries from incurring subsequent indebtedness, incurring liens, and amending organizational documents, repurchasing or repaying other debt, paying cash dividends and entering into affiliate transactions.

On February 22, 2013, simultaneous with the closing of the February SPA, the Company entered into an Amendment and Waiver Agreement (the “February Amendment and Waiver Agreement”) with the Holder under which the Holder agreed to (a) increase the number of shares exercisable under the 2011 and 2012 Warrants from an aggregate 50,000,000 shares to 81,578,946 shares and to modify both the exercise price and the Volume Weighted Average Price (“VWAP price”) of the 2011 and 2012  Warrants to $0.098 and $0.155, respectively, (b)  return to the Company for forfeiture the remaining warrants previously issued to purchase an aggregate 12,500,000 shares of common stock, (c)  extend the due date for the 2012 Convertible Notes from February 22, 2014 to June 30, 2015, (d) until February 22, 2014, without the prior written consent from the majority of the investors under the February SPA, forbear from declaring any Event of Default (as defined in the original debenture), and (e) relinquish its right to purchase up to an additional $750,000 in debentures under the terms of the original Purchase Agreement.

On September 18, 2013, simultaneous with the closing of the September SPA, the company entered into an Amendment and Waiver Agreement (“the September Amendment and Waiver Agreement”) under which the holders of the term debentures have agreed to (a) extend the payment due date for the interest on the debentures to June 30, 2015, modify the conversion price for the debentures to $0.06, and set the VWAP Price of the warrants originally issued in 2011 and 2012 to $0.3705.

On April 14, 2014 and May 27, 2014, the Company obtained $250,000 in funding through the sale of convertible notes and warrants, respectively. 

As of June 30, 2014 and December 31, 2013, the maturity date principal of convertible debt was $4,994,355 and $4,494,355, respectively, and is due between June 2015 and January 2016. The Company has also accrued approximately $268,000 and $144,000 of interest payable to the convertible note holders at June 30, 2014 and December 31, 2013, respectively. The terms of the individual tranches of convertible notes and warrants issued pursuant to this agreement and the impact of the Amendment and Waiver Agreements are discussed below.

2011 Convertible Notes

The September Amendment and Waiver Agreement extends the payment due date for the interest on the debentures to June 30, 2015. Interest is calculated on the basis of a 360-day year and accrues daily commencing on the Original Issue Date until payment in full of the outstanding principal, together with all accrued and unpaid interest, liquidated damages and other amounts that may become due in connection with the 2011 Convertible Notes, has been made.

The Holders may convert the outstanding principal amount of the Convertible Notes into shares of the Company’s common stock at the conversion price of $0.06 per share as per the September 2013 Amendment and Waiver Agreement. The conversion price is subject to adjustment in the event of (a) stock splits, stock dividends, combinations, reclassifications, mergers, consolidations, distributions of assets or evidence of indebtedness, sales or transfers of substantially all assets, share exchanges or similar events, and (b) certain dilutive issuances of (i) common stock or (ii) common stock equivalents at an effective price per share that is lower than the then conversion price.

At any time after February 2012, and upon entering into a change of control transaction or Fundamental Transaction, as defined in the Debenture Agreement, the Company may deliver a notice to the Holders of its irrevocable election to redeem all of the then outstanding principal of the 2011 Convertible Notes for cash in an amount equal to the sum of (a) the greater of (i) the outstanding amount of the 2011 Convertible Notes divided by the conversion price on the date of the mandatory default amount, as defined in the Purchase Agreement, is either (A) demanded or (B) paid in full, whichever has a lower conversion price, multiplied by the VWAP of the date of the mandatory default amount is either (x) demanded or otherwise due or (y) paid in full, whichever has higher VWAP, plus all accrued and unpaid interest, or (ii) 130% of the outstanding principal amount of the Notes, plus 100% of accrued and unpaid interest, and (b) all other amounts, costs, expenses and liquidated damages due under the various agreements covering issuance of the Convertible Notes. Such amount would include the liquidated damages due under the default provision of the Purchase Agreement.

Due to the February 2013 Amendment and Waiver Agreement, the Company is required to repay, in cash, any outstanding principal amount of the 2011 Convertible Notes on June 30, 2015 and is not permitted, except upon entering into a change of control transaction or fundamental transaction as noted above, to prepay any portion of the principal amount without prior written consent of the Holders.

2011 Warrants

On February 22, 2011, in connection with the issuance of the 2011 Convertible Notes, the Company issued warrants for the purchase of up to 40,000,000 shares of common stock at the exercise price of $0.15 per share and with an expiration date of February 22, 2016 (the “2011 Warrants”). On February 22, 2013, as per the terms of the February Amendment and Waiver Agreement, the Company canceled the original warrants and re-issued new warrants for the purchase of up to 65,263,156 shares of common stock at an exercise price of $0.098 per share.

The 2011 Warrants are exercisable by a cashless exercise to purchase shares of the Company’s common stock. The Exercise Price of the 2011 Warrants shall be adjusted in the event of (a) stock splits, stock dividends, combinations, reclassifications, mergers, consolidations, distributions of assets or evidence of indebtedness, sales or transfers of substantially all assets, share exchanges or similar events, and (b) certain dilutive issuances of (i) common stock or (ii) common stock equivalents at an effective price per share that is lower than the then Exercise Price.

In connection with a Fundamental Transaction, as defined in the Purchase Agreement, that is an all-cash transaction, the Company shall have the right to purchase from the Holders all, but not less than all, of the unexercised portion of the Warrants by paying in cash to the Holders an amount equal to 30% of the Exercise Price multiplied by the number of shares of Common Stock for which the Warrants are exercisable immediately prior to such change of control transaction. 

On June 12, 2014, the Company entered into an agreement with the warrant holders to settle the outstanding 2011 warrants by issuing 2/3 of a share for each outstanding warrant.

The following is a summary of the 2011 Warrants outstanding for the six months ended June 30, 2014:

	2011 Warrants			Exercise Price
Beginning balance – December 31, 2013		17,940,780		$	0.098
Less: Canceled		--			--
Add: Issued		--			--
Less: Warrants exchanged for common stock upon settlement		(17,940,780	)	$	0.098
Ending Balance – June 30, 2014		--		$	--

2012 Convertible Notes

The 2012 Convertible Notes contain the same terms as the 2011 Convertible Notes and require payment of interest at the rate of 5% per annum, payable upon the maturation of the debenture and mature on July 2, 2015. The 2012 Convertible Notes provide the Investors the option at any time prior to the repayment of the notes to convert any portion of the balance into fully-paid and non-assessable restricted shares of common stock of the Company at a conversion price of $0.06 per share as per the September 2013 Amendment and Waiver Agreement. The conversion price is subject to adjustment in the event of (a) stock splits, stock dividends, combinations, reclassifications, mergers, consolidations, distributions of assets or evidence of indebtedness, sales or transfers of substantially all assets, share exchanges or similar events, and (b) certain dilutive issuances of (i) common stock or (ii) common stock equivalents at an effective price per share that is lower than the then conversion price.

The 2012 Convertible Notes may be redeemed at the option of the Company on the same terms as the 2011 Convertible Notes only in connection with a change of control or other fundamental transaction of the Company and subject to the satisfaction of other conditions including, without limitation, that the shares issuable upon conversion of the debentures are freely tradable and that there is no event of default.  

2012 Warrants

On July 2, 2012, in conjunction with the issuance of the 2012 Convertible Notes, the Company issued warrants for the purchase of up to 20,000,000 shares of common stock with five year terms.  The warrants were issued to allow the Investors to purchase up to 10,000,000 shares of common stock at an initial purchase price of $0.15 per share and the remaining 10,000,000 shares of common stock at an initial purchase price of $0.25 per share. The terms of the 2012 Warrants are identical to those of the 2011 Warrants, except that the 2012 Warrants are exercisable for a period of five years from the date of issuance and contain different exercise prices. On February 22, 2013, as per the terms of the February Amendment and Waiver Agreement, the Company canceled the original warrants and re-issued new warrants for the purchase of up to 16,315,790 shares of common stock at an initial purchase price of $0.098. 

On June 12, 2014, the Company entered into an agreement with the warrant holders to settle the outstanding 2012 Warrants by issuing 2/3 of a common share for each outstanding warrant.

The following is a summary of the 2012 Warrants outstanding at June 30, 2014:

	2012 Warrants			Exercise Price
Beginning balance at December 31, 2013		7,065,255		$	0.098
Less: Canceled		--			--
Add: Issued		--			--
Less: Warrants exchanged for common stock upon settlement		(7,065,255	)	$	0.098
Ending balance at June 30, 2014		--		$	--

Third Tranche Convertible Notes

The Third Tranche Convertible Notes, which were issued on January 16, 2013, contain the same terms as the 2011 and 2012 Convertible Notes and require payment of interest at the rate of 5% per annum, payable upon the maturation of the debenture on January 16, 2016.  The Third Tranche Convertible Notes provide the Investors the option at any time prior to the repayment of the notes to convert any portion of the outstanding Third Tranche balance into fully-paid and non-assessable restricted shares of common stock of the Company at a conversion price of $0.06 per share. The conversion price is subject to adjustment in the event of (a) stock splits, stock dividends, combinations, reclassifications, mergers, consolidations, distributions of assets or evidence of indebtedness, sales or transfers of substantially all assets, share exchanges or similar events, and (b) certain dilutive issuances of (i) common stock or (ii) common stock equivalents at an effective price per share that is lower than the then conversion price.

The Third Tranche Convertible Notes may be redeemed at the option of the Company on the same terms as the 2011 and 2012 Convertible Notes only in connection with a change of control or other fundamental transaction of the Company and subject to the satisfaction of other conditions including, without limitation, that the shares issuable upon conversion of the debentures are freely tradable and that there is no event of default.  

Third Tranche Warrants

On January 16, 2013, in connection with the Third Tranche Convertible Notes, the Company issued warrants for the purchase of up to 2,500,000 shares of common stock with five year terms.  The warrants were issued to allow the Investors to purchase up to 2,500,000 shares of common stock at an initial purchase price of $0.15 per share. On February 22, 2013, per the terms of the Amendment and Waiver Agreement, the Third Tranche Warrants were canceled.

April 2014 Convertible Notes

On April 14, 2014, the Company entered into an Amendment and Waiver Agreement (the “April Amendment and Waiver Agreement”) to the Securities Purchase Agreement dated February 22, 2011, and as further amended in July 2012, January 2013, February 2013 and September 2013. The April Amendment and Waiver Agreement reestablished the availability and extended the period of time in which the remaining funds under the third closing (up to $750,000) could be sold. The April Amendment and Waiver Agreement also waived certain corporate milestones and conditions to necessary to complete the third closing and waived any defaults under the terms of the Purchase Agreement.

In connection with the April Amendment and Waiver Agreement, the Company issued and sold to GCP IV LLC (i) a 5% Senior Secured Convertible Debenture of the Company (the “April 2014 Notes”) with a principal amount of $250,000, and (ii) a Common Stock Purchase Warrant to purchase up to 4,166,667 shares of the Company’s common stock at an initial exercise price of $0.09 per share (the “April 2014 Warrants”), for a total purchase price of $250,000.

The April 2014 Convertible Notes contain the same terms as the 2011 Convertible Notes and require payment of interest at the rate of 5% per annum, payable upon the maturation of the debenture and mature on July 2, 2015. The April 2014 Convertible Notes provide the Investors the option at any time prior to the repayment of the notes to convert any portion of the balance into fully-paid and non-assessable restricted shares of common stock of the Company at a conversion price of $0.06 per share as per the April Amendment and Waiver Agreement. The conversion price is subject to adjustment in the event of (a) stock splits, stock dividends, combinations, reclassifications, mergers, consolidations, distributions of assets or evidence of indebtedness, sales or transfers of substantially all assets, share exchanges or similar events, and (b) certain dilutive issuances of (i) common stock or (ii) common stock equivalents at an effective price per share that is lower than the then conversion price.

The April 2014 Convertible Notes may be redeemed at the option of the Company on the same terms as the 2011 Convertible Notes only in connection with a change of control or other fundamental transaction of the Company and subject to the satisfaction of other conditions including, without limitation, that the shares issuable upon conversion of the debentures are freely tradable and that there is no event of default.  

April 2014 Warrants

On April 14, 2014, in connection with the April Convertible Notes, the Company issued warrants for the purchase of up to 4,166,667 shares of the common stock with five year terms at an exercise price of $0.09 per share. The April 2014 Warrants may be exercised on a cashless basis if there is no effective registration statement registering the Warrant Shares. The exercise price is adjustable for certain dilutive issuances, including issuances of securities at an effective price per share lower than the exercise price, rights offerings, mergers or sales of assets and certain other customary anti-dilution provisions.

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The following is a summary of the April 2014 Warrants outstanding at June 30, 2014:

	April 2014 Warrants		Exercise Price
Beginning balance at December 31, 2013		--	$	--
Less: Canceled		--		--
Add: Issued		4,166,667		0.09
Less: Exercised		--		--
Ending balance at June 30, 2014		4,166,667	$	0.09

May 2014 Convertible Notes

On May 27, 2014, in connection with an additional Third Closing (as defined in the Purchase Agreement) under that certain Securities Purchase Agreement, dated as of February 22, 2011, as amended by each of those certain Amendments and Waivers dated July 2, 2012, January 16, 2013, September 18, 2013 and April 14, 2014, the Company issued and sold to GCP IV LLC, and GCP purchased from the Company, (i) a 5% Senior Secured Convertible Debenture of the Company with a principal amount of $250,000 (the “May 2014 Convertible Notes”), and (ii) a Common Stock Purchase Warrant to purchase up to 4,166,667 shares of the Company’s common stock at an initial exercise price of $0.09 per share (the “May 2014 Warrant”), for a total purchase price of $250,000.

The May 2014 Convertible Notes contain the same terms as the 2011 Convertible Notes and require payment of interest at the rate of 5% per annum, payable upon the maturation of the debenture and mature on January 16, 2016. The May 2014 Convertible Notes provide the Investors the option at any time prior to the repayment of the notes to convert any portion of the balance into fully-paid and non-assessable restricted shares of common stock of the Company at a conversion price of $0.06 per share. The conversion price is subject to adjustment in the event of (a) stock splits, stock dividends, combinations, reclassifications, mergers, consolidations, distributions of assets or evidence of indebtedness, sales or transfers of substantially all assets, share exchanges or similar events, and (b) certain dilutive issuances of (i) common stock or (ii) common stock equivalents at an effective price per share that is lower than the then conversion price.

May 2014 Warrants

On May 27, 2014, in connection with the May 2014 Convertible Notes, the Company issued warrants for the purchase of up to 4,166,667 shares of the common stock with five year terms at an exercise price of $0.09 per share. The May 2014 Warrants may be exercised on a cashless basis if there is no effective registration statement registering the Warrant Shares. The exercise price is adjustable for certain dilutive issuances, including issuances of securities at an effective price per share lower than the exercise price, rights offerings, mergers or sales of assets and certain other customary anti-dilution provisions.

The following is a summary of the May 2014 Warrants outstanding at June 30, 2014:

	May 2014 Warrants		Exercise Price
Beginning balance at December 31, 2013		--	$	--
Less: Canceled		--		--
Add: Issued		4,166,667		0.09
Less: Exercised		--		--
Ending balance at June 30, 2014		4,166,667	$	0.09

 Accounting for the 2011 Convertible Notes, 2012 Convertible Notes, Third Tranche Convertible Notes, April 2014 Convertible Notes, May 2014 Convertible Notes, 2011 Warrants, 2012 Warrants, Third Tranche Warrants, April 2014 Warrants and May 2014 Warrants

2011 Convertible Notes, 2012 Convertible Notes, Third Tranche Convertible Notes, April 2014 Convertible Notes and May 2014 Convertible Notes

The Company has determined that the 2011 Convertible Notes, 2012 Convertible Notes, Third Tranche Convertible Notes, April 2014 Convertible Notes and May 2014 Convertible Notes constitute hybrid instruments that have the characteristics of a debt host contract containing several embedded derivative features that would require bifurcation and separate accounting as a derivative instrument pursuant to the provisions of ASC 815. The Company has identified all of the derivatives associated with each convertible note. As permitted under ASC 825-10-10 – Financial Instruments, as it relates to the fair value option, the Company has elected, as of the original issuance date of each convertible note, to measure the 2011 Convertible Notes, 2012 Convertible Notes, the Third Tranche Convertible Notes, the April 2014 Convertible Notes and the May 2014 Convertible Notes in their entirety at fair value with changes in fair value recognized in the Condensed Consolidated Statements of Operations as either a gain or loss until the notes are settled. As such, the Company has appropriately valued the embedded derivatives as a single hybrid contract together with the convertible notes. This election was made by the Company after determining the aggregate fair value of the convertible notes to be more meaningful in the context of the Company’s financial statements than if separate fair values were assigned to each of the multiple embedded instruments contained in the convertible notes.

Pursuant to the guidance of ASC 815-40-15 (formerly EITF 07-5, Determining Whether an Instrument (or Embedded Feature) Is Indexed to an Entity’s Own Stock), the 2011 Warrants, 2012 Warrants, Third Tranche Warrants, April 2014 Warrants and May 2014 Warrants were not considered indexed to the Company’s own stock. As a result these instruments have been account for as freestanding derivative instruments and classified as a liability recorded at fair value at each reporting period.

The February 2013 and September 2013 Amendment and Waiver Agreements triggered greater than 10% changes in the present value of cash flows of the convertible notes and associated warrants. As a result, the Company has treated the Amendment and Waiver Agreements as debt extinguishments where the carrying value of the convertible notes and warrants prior to the amendments were removed from the Company’s books and the fair value of the amended convertible notes and warrants was recorded. The resulting difference in value was recorded as an aggregate $1,283,000 loss on the extinguishment of debt during the six months ended June 30, 2013. The impact to each of the convertible notes and associated warrants is discussed below.

2011 Convertible Notes and 2011 Warrants

Upon issuance of the 2011 Convertible Notes, the Company allocated the proceeds received to the 2011 Convertible Notes and 2011 Warrants on a relative fair value basis. As a result of such allocation, the Company determined the initial carrying value of the Notes to be $3,208,000. The debt discount in the amount of $792,000 (resulting from the allocation of proceeds) was being amortized to interest expense using the effective interest method over the expected term of the 2011 Convertible Notes.  The carrying value of the 2011 Convertible Notes has been adjusted to fair value each reporting period. 

The Company accounted for the February 2013 Amendment and Waiver Agreement as an extinguishment of debt at February 22, 2013. The fair value of the 2011 Convertible Notes prior to the extinguishment was replaced by the fair value of the amended 2011 Convertible Notes, resulting in a fair value of $6,070,000 as of February 22, 2013. In connection with the extinguishment of the debt as of February 22, 2013, the Company had amortized $38,000 of the debt discount and wrote off the remaining debt discount of $265,000.

The Company has also accounted for the September 2013 Amendment and Waiver Agreement as an extinguishment of debt at September 18, 2013. The fair value of the 2011 Convertible Notes prior to the extinguishment was replaced by the fair value of the amended 2011 Convertible Notes, resulting in a fair value of $4,920,000 as of September 18, 2013.

As of June 30, 2013 and 2014, the 2011 Convertible Notes have been marked to fair value resulting in a derivative liability of $4,380,000 and $3,010,000, respectively. The impact to other income (expense) for the adjustments to fair value for the three and six months ended June 30, 2013 and 2014 was a gain of $3,107,000 and $354,000 respectively, and a gain of $480,000 and $280,000, respectively.

As a result of the February 2013 Amendment and Waiver Agreement the carrying value of the 2011 Warrants was adjusted at February 22, 2013 to reflect the revised terms. As of June 30, 2013, the 2011 Warrants have been marked to fair value resulting in a derivative liability of $1,809,000. As of June 30, 2014, the 2011 Warrants have been fully settled resulting in no derivative liability. The impact to other income (expense) for the adjustments to fair value for the three and six months ended June 30, 2013 and 2014 was a gain of $2,118,000 and $104,000, respectively, and a gain of $238,000 and a gain of $59,000, respectively.

On June 12, 2014, the outstanding 2011 warrants were exchanged for 11,960,520 shares of common stock pursuant to a warrant exchange agreement. The fair value of the common shares issued was $120,000 and was reclassified as a component of common stock upon the settlement. Of the 11,960,250 shares issued, 6,882,287 shares were reserved for future issuance under a Rights to Shares agreement. No additional consideration will be received and the Company must deliver the shares within three days or request.

During the three and six months June 30, 2013, certain holders of the 2011 Warrants exercised warrants to purchase 17,940,780 shares of common stock pursuant to the cashless exercise provisions resulting in the issuance of 12,020,323, shares of the Company’s common stock. The cashless exercise resulted in the reclassification of $359,000 in the exercise date fair value of the 2011 Warrants exercised as a component of the common stock balance within stockholders’ equity in the consolidated balance sheet.

2012 Convertible Notes and 2012 Warrants

Upon issuance of the 2012 Convertible Notes, the Company allocated the proceeds received to the Second Tranche Convertible Notes and 2012 Warrants on a relative fair value basis. As a result of such allocation, the Company determined the initial carrying value of the Second Tranche Convertible Notes to be $417,000.  The debt discount in the amount of $583,000 (resulting from the allocation of proceeds) was being amortized to interest expense using the effective interest method over the expected term of the 2012 Convertible Notes. The carrying value of the 2012 Convertible Notes has been adjusted to fair value each reporting period.

The Company has accounted for the February 2013 Amendment and Waiver Agreement as an extinguishment of debt at February 22, 2013. The fair value of the 2012 Convertible Notes prior to the extinguishment was replaced by the fair value of the amended 2012 Convertible Notes, resulting in a fair value of $1,516,000 as of February 22, 2013. In connection with the extinguishment of debt as of February 22, 2013, the Company had amortized $55,000 of the debt discount and wrote off the remaining debt discount of $462,000.

The Company has also accounted for the September 2013 Amendment and Waiver Agreement as an extinguishment of debt at September 18, 2013. The fair value of the 2012 Convertible Notes prior to the extinguishment was replaced by the fair value of the amended 2012 Convertible Notes, resulting in a fair value of $1,390,000 as of September 18, 2013. As of June 30, 2013 and 2014, the 2012 Convertible Notes have been marked to fair value resulting in a derivative liability of $1,180,000 and $930,000, respectively. The impact to other income (expense) for the adjustments to fair value for the three and six months ended June 30, 2013 and 2014 was a gain of $620,000 and $463,000, respectively and a gain of $200,000 and a gain of $80,000, respectively.  

As a result of the February 2013 Amendment and Waiver Agreement the carrying value of the 2012 Warrants was adjusted at February 22, 2013 to reflect the revised terms. As of June 30, 2014, the 2012 Warrants have been settled resulting in no outstanding derivative liabilities. The impact to other income (expense) for the adjustments to fair value for the three and six months ended June 30, 2013 and 2014 was a gain of $979,000 and $21,000, respectively, and a gain of $112,000 and $94,000, respectively.

On June 12, 2014, the outstanding 2012 warrants were exchanged for 4,710,170 shares of common stock pursuant to a warrant exchange agreement. The fair value of the common shares issued was $47,000 and was reclassified as a component of common stock upon the settlement. Of the 4,710,170 shares issued, 4,710,170 shares were reserved for future issuance under a Rights to Shares agreement. No additional consideration will be received and the Company must deliver the shares within three days or request.

During the three and six months June 30, 2013, certain holders of the 2012 Warrants exercised warrants to purchase 7,065,255 shares of common stock pursuant to the cashless exercise provisions resulting in the issuance of 4,733,721, shares of the Company’s common stock. The cashless exercise resulted in the reclassification of $159,000 in the exercise date fair value of the 2012 Warrants exercised as a component of the common stock balance within stockholders’ equity in the consolidated balance sheet.

Third Tranche Convertible Notes and Third Tranche Warrants

Upon issuance of the Third Tranche Convertible Notes in January 2013, the Company allocated the proceeds received to the Third Tranche Convertible Notes and Third Tranche Warrants on a relative fair value basis. As a result of such allocation, the Company determined the initial carrying value of the Third Tranche Convertible Notes to be $142,000.  The Third Tranche Convertible Notes were immediately marked to fair value, resulting in a derivative liability in the amount of $394,000. The debt discount in the amount of $108,000 (resulting from the allocation of proceeds) was being amortized to interest expense using the effective interest method over the expected term of the Convertible Notes.

The Company has accounted for the February 2013 Amendment and Waiver Agreement as an extinguishment of debt at February 22, 2013. The fair value of the Third Tranche Convertible Notes prior to the extinguishment was replaced by the fair value of the amended Third Tranche Convertible Notes, resulting in a fair value of $386,000 as of February 22, 2013. In connection with the extinguishment of debt as of February 22, 2013, the Company had amortized $2,000 of the debt discount and wrote off the remaining debt discount of $106,000.

The Company has accounted for the September 2013 Amendment and Waiver Agreement as an extinguishment of debt at September 18, 2013. The fair value of the Third Tranche Convertible Notes prior to the extinguishment was replaced by the fair value of the amended Third Tranche Convertible Notes, resulting in a fair value of $361,000 as of September 18, 2013. As of June 30, 2014, the Third Tranche Convertible Notes have been marked to fair value resulting in a derivative liability of $232,000. The impact to other income (expense) for the adjustments to fair value for the three and six months ended June 30, 2014 was a gain of $52,000 and $5,000 respectively.

Upon issuance of the Third Tranche Warrants, the Company allocated $108,000 of the initial proceeds to the Third Tranche Warrants and immediately marked them to fair value resulting in a derivative liability of $300,000.  The Third Tranche Warrants were canceled during 2013.

April 2014 Convertible Notes and April 2014 Warrants

Upon issuance of the April 2014 Convertible Notes in April 2014, the Company allocated the proceeds received to the April 2014 Convertible Notes and April 2014 Warrants on a relative fair value basis. As a result of such allocation, the Company determined the initial carrying value of the April 2014 Convertible Notes to be $205,000. The April 2014 Convertible Notes were immediately marked to fair value, resulting in a derivative liability in the amount of $261,000. The debt discount in the amount of $45,000 (resulting from the allocation of proceeds) was being amortized to interest expense using the effective interest method over the expected term of the Convertible notes. The carrying value of the April 2014 Convertible Notes has been adjusted to fair value each reporting period. 

As of June 30, 2014, the April 2014 Convertible Notes have been marked to fair value resulting in a derivative liability of $242,000. The impact to other income (expense) for the adjustments to fair value for the three and six months ended June 30, 2014 was a loss of $29,000 and $29,000, respectively. The Company amortized $8,000 of debt discount of the April 2014 Convertible Notes to interest expense for the three and six months ended June 30, 2014, respectively.

Upon issuance of the April 2014 Warrants, the Company allocated $45,000 of the initial proceeds to the April 2014 Warrants and immediately marked them to fair value resulting in a derivative liability of $58,000.  As of June 30, 2014, the April 2014 Warrants have been marked to fair value resulting in a derivative liability of $4,000. The impact to other income (expense) for the three and six months ended June 30, 2013 was a gain of $41,000 and $41,000, respectively.

May 2014 Convertible Notes and May 2014 Warrants

Upon issuance of the May 2014 Convertible Notes in May 2014, the Company allocated the proceeds received to the May 2014 Convertible Notes and May 2014 Warrants on a relative fair value basis. As a result of such allocation, the Company determined the initial carrying value of the May 2014 Convertible Notes to be $247,000. The May 2014 Convertible Notes were immediately marked to fair value, resulting in a derivative liability in the amount of $254,000. The debt discount in the amount of $3,000 (resulting from the allocation of proceeds) was being amortized to interest expense using the effective interest method over the expected term of the Convertible notes. The carrying value of the May 2014 Convertible Notes has been adjusted to fair value each reporting period. 

As of June 30, 2014, the May 2014 Convertible Notes have been marked to fair value resulting in a derivative liability of $239,000. The impact to other income (expense) for the adjustments to fair value for the three and six months ended June 30, 2014 was a gain of $8,000. The Company amortized $200 of debt discount of the May 2014 Convertible Notes to interest expense for the three and six months ended June 30, 2014, respectively.

Upon issuance of the May 2014 Warrants, the Company allocated $3,000 of the initial proceeds to the May 2014 Warrants and immediately marked them to fair value resulting in a derivative liability of $3,000.  As of June 30, 2014, the May 2014 Warrants have been marked to fair value resulting in a derivative liability of $6,000. The impact to other income (expense) for the three and six months ended June 30, 2013 was a loss of $3,000 and $3,000, respectively.