Redeemable Convertible Preferred Stock and Common Stock	3 Months Ended
Mar. 31, 2018
Temporary Equity Disclosure [Abstract]
Redeemable Convertible Preferred Stock and Common Stock	10. Redeemable Convertible Preferred Stock and Common Stock Redeemable Convertible Preferred Stock In conjunction with the issuance of the Redeemable Convertible Preferred Stock, Series A in May 2012, warrants to purchase 325,000 shares of our common stock (the “Warrants”) were issued. The initial value allocated to the Warrants was recognized as a discount on the Series A Convertible Preferred Stock, with a corresponding charge to additional paid-in capital. The discount related to the Warrants is accreted to retained earnings through the scheduled redemption date of the redeemable Series A Convertible Preferred Stock. Discount accretion totaled $0.01 million for both the three months ended March 31 for both 2018 and 2017. The Series A Convertible Preferred Stock accrues cumulative dividends at a rate of 6% per annum payable quarterly in cash or in shares of Common Stock, at the option of the Company, based on the then current liquidation market price value of the Series A Convertible Preferred Common Stock, which is currently $5.00 per share. Quarterly dividends not paid in cash or Common Stock accumulate without interest and must be fully paid before any dividend or other distribution can be paid on or declared and set apart for the Common Stock or conversion of the Series A Convertible Preferred Stock to Common Stock. At March 31, 2018 and December 31, 2017, the company had accrued but unpaid dividends totaling $0.08 million which is included in accounts payable and other accrued expenses in the condensed consolidated balance sheet. During the three months ended March 31, 2018, the Company issued 50,799 shares of common stock as payment of dividends accrued as of December 31, 2017. On or after April 30, 2017, the holders of a majority of the outstanding shares of the Series A Convertible Preferred Stock may require the Company to redeem the Series A Convertible Preferred Stock at a redemption price equal to the lessor of (i) the liquidation preference per share (initially $5.00 per share, subject to adjustments for certain future equity transactions defined in the Securities Purchase Agreement) and (ii) the fair market value of the Series A Convertible Preferred Stock per share, as determined in good faith by the Company’s Board of Directors. As of March 31, 2018 and December 31, 2017, the redemption price per share was $5.00 in both years. The redemption price, plus any accrued and unpaid dividends, shall be payable in 36 equal monthly installments plus interest at an annual rate of 6%. In connection with the issuance of the Company’s senior secured Term Note, described in Note 6, the Company has agreed with the Purchaser of the Term Note and the holder of the Preferred Stock (the “Holder”) not to declare, authorize or pay any cash dividends on the Preferred Stock until the earlier of (i) March 22, 2018, or (ii) the date the obligations under the Note Purchase Agreement have been paid in full (the “Standstill Period”), without the prior written consent of the Purchaser. Following the expiration of the Standstill Period, for so long as the obligations under the Note Purchase Agreement remain outstanding, the Company may, at its sole discretion, declare, authorize or pay dividends in cash on the Preferred Stock so long as no event of default exists under the Term Note or would result therefrom. The Holder also agreed that it shall not exercise its rights to require the Company to redeem any of the Preferred Stock during the Standstill Period. Following the expiration of the Standstill Period, so long as the obligations under the Note Purchase Agreement remain outstanding, the Holder may compel the Company to redeem shares of Preferred Stock provided no event of default exists under the Term Note or would result from such redemption. In consideration for the Holder’s consent to the foregoing restrictions on the payment of cash dividends on or redemption of the Preferred Stock, the Company entered into an agreement with the Holder (the “Repricing Agreement”) on August 1, 2017. Pursuant to the Repricing Agreement, each share of Series A Preferred Stock will be initially convertible, at the option of the holder, into one (1) share of common stock at a conversion price of $2.26 per share of common stock, so that the Series A Preferred Stock sold to the Holder are currently convertible into an aggregate of 2,212,389 shares of common stock. In addition, pursuant to the Repricing Agreement, the Series A Warrants sold to the Holder will be exercisable for 125,000 shares of common stock at an initial exercise price of $2.72 per share and the Series B Warrants sold to the Holder will be exercisable for 200,000 shares of common stock at an initial exercise price of $3.17 per share. In order to comply with the rules of the NASDAQ Stock Market, the Repricing Agreement prohibits the issuance of more than 19.99% of our common stock or voting power outstanding to the Holder as of the date of the Repricing Agreement without stockholder approval. The Company has agreed to seek the approval of its stockholders in the upcoming meeting of stockholders in June 2018. In the event that stockholder approval is received and the Holder were to convert all of its Series A Preferred Stock into common stock and exercised all of its Common Stock Purchase Warrants for cash, the Holder would be issued more than 19.99% of our common stock and voting power as of the date of the Repricing Agreement. This agreement was approved by a committee of the Board of Directors comprised solely of independent directors. Common Stock For the three months ended March 31, 2018, the Company issued a total of 94,872 shares of common stock. The Company issued 50,799 shares of common stock as payment of accrued preferred dividends, as noted above, with the remaining 44,073 shares issued in connection with the Company’s Employee Stock Purchase Plan and upon vesting of restricted stock units.

10. Redeemable Convertible Preferred Stock and Common Stock

Redeemable Convertible Preferred Stock

In conjunction with the issuance of the Redeemable Convertible Preferred Stock, Series A in May 2012, warrants to purchase 325,000 shares of our common stock (the “Warrants”) were issued.

The initial value allocated to the Warrants was recognized as a discount on the Series A Convertible Preferred Stock, with a corresponding charge to additional paid-in capital. The discount related to the Warrants is accreted to retained earnings through the scheduled redemption date of the redeemable Series A Convertible Preferred Stock. Discount accretion totaled $0.01 million for both the three months ended March 31 for both 2018 and 2017.

The Series A Convertible Preferred Stock accrues cumulative dividends at a rate of 6% per annum payable quarterly in cash or in shares of Common Stock, at the option of the Company, based on the then current liquidation market price value of the Series A Convertible Preferred Common Stock, which is currently $5.00 per share. Quarterly dividends not paid in cash or Common Stock accumulate without interest and must be fully paid before any dividend or other distribution can be paid on or declared and set apart for the Common Stock or conversion of the Series A Convertible Preferred Stock to Common Stock. At March 31, 2018 and December 31, 2017, the company had accrued but unpaid dividends totaling $0.08 million which is included in accounts payable and other accrued expenses in the condensed consolidated balance sheet. During the three months ended March 31, 2018, the Company issued 50,799 shares of common stock as payment of dividends accrued as of December 31, 2017.

On or after April 30, 2017, the holders of a majority of the outstanding shares of the Series A Convertible Preferred Stock may require the Company to redeem the Series A Convertible Preferred Stock at a redemption price equal to the lessor of (i) the liquidation preference per share (initially $5.00 per share, subject to adjustments for certain future equity transactions defined in the Securities Purchase Agreement) and (ii) the fair market value of the Series A Convertible Preferred Stock per share, as determined in good faith by the Company’s Board of Directors. As of March 31, 2018 and December 31, 2017, the redemption price per share was $5.00 in both years. The redemption price, plus any accrued and unpaid dividends, shall be payable in 36 equal monthly installments plus interest at an annual rate of 6%.

In connection with the issuance of the Company’s senior secured Term Note, described in Note 6, the Company has agreed with the Purchaser of the Term Note and the holder of the Preferred Stock (the “Holder”) not to declare, authorize or pay any cash dividends on the Preferred Stock until the earlier of (i) March 22, 2018, or (ii) the date the obligations under the Note Purchase Agreement have been paid in full (the “Standstill Period”), without the prior written consent of the Purchaser. Following the expiration of the Standstill Period, for so long as the obligations under the Note Purchase Agreement remain outstanding, the Company may, at its sole discretion, declare, authorize or pay dividends in cash on the Preferred Stock so long as no event of default exists under the Term Note or would result therefrom. The Holder also agreed that it shall not exercise its rights to require the Company to redeem any of the Preferred Stock during the Standstill Period. Following the expiration of the Standstill Period, so long as the obligations under the Note Purchase Agreement remain outstanding, the Holder may compel the Company to redeem shares of Preferred Stock provided no event of default exists under the Term Note or would result from such redemption. In consideration for the Holder’s consent to the foregoing restrictions on the payment of cash dividends on or redemption of the Preferred Stock, the Company entered into an agreement with the Holder (the “Repricing Agreement”) on August 1, 2017. Pursuant to the Repricing Agreement, each share of Series A Preferred Stock will be initially convertible, at the option of the holder, into one (1) share of common stock at a conversion price of $2.26 per share of common stock, so that the Series A Preferred Stock sold to the Holder are currently convertible into an aggregate of 2,212,389 shares of common stock. In addition, pursuant to the Repricing Agreement, the Series A Warrants sold to the Holder will be exercisable for 125,000 shares of common stock at an initial exercise price of $2.72 per share and the Series B Warrants sold to the Holder will be exercisable for 200,000 shares of common stock at an initial exercise price of $3.17 per share.

In order to comply with the rules of the NASDAQ Stock Market, the Repricing Agreement prohibits the issuance of more than 19.99% of our common stock or voting power outstanding to the Holder as of the date of the Repricing Agreement without stockholder approval. The Company has agreed to seek the approval of its stockholders in the upcoming meeting of stockholders in June 2018. In the event that stockholder approval is received and the Holder were to convert all of its Series A Preferred Stock into common stock and exercised all of its Common Stock Purchase Warrants for cash, the Holder would be issued more than 19.99% of our common stock and voting power as of the date of the Repricing Agreement.

This agreement was approved by a committee of the Board of Directors comprised solely of independent directors.

Common Stock

For the three months ended March 31, 2018, the Company issued a total of 94,872 shares of common stock. The Company issued 50,799 shares of common stock as payment of accrued preferred dividends, as noted above, with the remaining 44,073 shares issued in connection with the Company’s Employee Stock Purchase Plan and upon vesting of restricted stock units.