STOCKHOLDER RIGHTS PLAN	3 Months Ended
Mar. 31, 2020
Stockholder Rights Plan [Abstract]
Stockholders' Rights Plan	STOCKHOLDERS' EQUITY Common Stock On July 30, 2015, the Company announced that its Board authorized the repurchase of up to $10,000 of the Company's common stock. The Company intends to make purchases from time to time as market conditions warrant. This authorization does not expire. During the three months ended March 31, 2020, no purchases of shares were made under this authorization. The Company repurchased 10,630 shares on the open market for $154 during the same period last year. As of March 31, 2020, under the July 30, 2015 authorization, the Company had repurchased 432,563 shares for a total cost of $8,297. In addition to the shares repurchased above under the $10,000 authorization plan, on February 22, 2019, the Company commenced a tender offer to purchase up to 315,000 shares of the Company’s common stock at a purchase price of $15.00 per share. The tender offer expired on March 22, 2019. In accordance with the terms and conditions of the tender offer, the Company acquired 246,863 shares for an aggregate cost of $3,703, excluding fees and expenses of $125. On March 27, 2020, the Company, in addition to the $10,000 authorization plan, completed transactions with certain stockholders to repurchase 259,331 shares of the Company's common stock for an aggregate cost of $2,238, excluding fees of $1. Reverse Stock Split On June 10, 2019, the Company announced a Reverse Split of its outstanding shares of common stock at a ratio of 1-for-10 and that it had also reduced the number of authorized shares of common stock to 20 million shares. The Reverse Split had no effect on the par value of the Company's common stock, but it reduced the number of issued and outstanding shares of common stock by a factor of 10. All issued and outstanding shares, stock-based compensation disclosures, net loss per share, and other share and per share disclosures for all periods presented have been retrospectively adjusted to reflect the impact of this Reverse Split. STOCKHOLDER RIGHTS PLAN On October 15, 2018, the Company’s Board declared a dividend to the Company’s stockholders of record as of the close of business on October 25, 2018 (the "Record Date"), for each outstanding share of the Company’s common stock, of one right (a "Right") to purchase one one-hundredth of a share of a new series of participating preferred stock of the Company. The terms of the Rights are set forth in the Rights Agreement, dated as of October 15, 2018 (the "Rights Agreement"), by and between the Company and Computershare Trust Company, N.A., as rights agent. The Company's stockholders approved the Rights Agreement at the Company’s 2019 annual meeting of stockholders held on May 6, 2019. Each Right allows its holder to purchase from the Company one one-hundredth of a share of the Company’s Series B Junior Participating Preferred Stock ("Series B Preferred Stock") for a purchase price of $3.50. Each fractional share of Series B Preferred Stock would give the stockholder approximately the same dividend, voting and liquidation rights as does one share of common stock. Prior to exercise, however, a Right does not give its holder any dividend, voting or liquidation rights. The Board entered into the Rights Agreement in an effort to preserve the value of the Company’s significant U.S. NOLs and other tax benefits. The Company’s ability to utilize its NOLs may be substantially limited if the Company experiences an "ownership change" within the meaning of Section 382 of the Internal Revenue Code of 1986, as amended (the "Code"). In general, an "ownership change" would occur if the percentage of the Company’s ownership by one or more "5-percent shareholders" (as defined in the Code) increases by more than 50 percent over the lowest percentage owned by such stockholders at any time during the prior three years. The Rights Agreement is designed to preserve the Company’s tax benefits by deterring transfers of common stock that could result in an "ownership change" under Section 382 of the Code. The Rights Agreement replaced the Company’s prior rights agreement designed to preserve the value of the Company’s NOLs, which was approved by stockholders in 2015 and expired in accordance with its terms in January 2018. The Company also has a provision in its Amended and Restated Certificate of Incorporation (the "Charter Provision") which generally prohibits transfers of its common stock that could result in an ownership change. The Company believes that in light of the significant amount of the NOLs, it is advisable to adopt the Rights Agreement in addition to the Charter Provision. In general terms, the Rights Agreement imposes a significant penalty upon any person or group that acquires beneficial ownership (as defined under the Rights Agreement) of 4.99% or more of the outstanding common stock without the prior approval of the Board (an "Acquiring Person"). Any Rights held by an Acquiring Person are void and may not be exercised. The Rights will not be exercisable until the earlier of (i) 10 days after a public announcement by the Company that a person or group has become an Acquiring Person; and (ii) 10 business days (or a later date determined by the Board) after a person or group begins a tender or an exchange offer that, if completed, would result in that person or group becoming an Acquiring Person. Until the date that the Rights become exercisable (the "Distribution Date"), common stock certificates will also evidence the Rights and will contain a notation to that effect. Any transfer of shares of common stock prior to the Distribution Date will constitute a transfer of the associated Rights. After the Distribution Date, the Rights will separate from the common stock and be evidenced by Right certificates, which the Company will mail to all holders of Rights that have not become void. After the Distribution Date, if a person or group already is or becomes an Acquiring Person, all holders of Rights, except the Acquiring Person, may exercise their Rights upon payment of the purchase price to purchase shares of common stock (or other securities or assets as determined by the Board) with a market value of two times the purchase price (a "Flip-in Event"). After the Distribution Date, if a Flip-in Event has already occurred and the Company is acquired in a merger or similar transaction, all holders of Rights, except the Acquiring Person, may exercise their Rights upon payment of the purchase price, to purchase shares of the acquiring or other appropriate entity with a market value of two times the purchase price of the Rights. Rights may be exercised to purchase Series B Preferred Stock only after the Distribution Date occurs and prior to the occurrence of a Flip-in Event as described above. A Distribution Date resulting from the commencement of a tender offer or an exchange offer as described in the second bullet point above could precede the occurrence of a Flip-in Event, in which case the Rights could be exercised to purchase Series B Preferred Stock. A Distribution Date resulting from any occurrence described in the first bullet point above would necessarily follow the occurrence of a Flip-in Event, in which case the Rights could be exercised to purchase shares of common stock (or other securities or assets) as described above. The Rights Agreement grants discretion to the Board to designate a person as an "Exempt Person" or to designate a transaction involving common stock as an "Exempt Transaction." An "Exempt Person" cannot become an Acquiring Person under the Rights Agreement. The Board can revoke an "Exempt Person" designation if it subsequently makes a contrary determination regarding whether a transaction by such person may jeopardize the availability of the Company’s tax benefits. The Rights will expire on the earliest of (i) October 15, 2021, the third anniversary of the date on which the Board authorized and declared a dividend of the Rights, or such earlier date as of which the Board determines that the Rights Agreement is no longer necessary for the preservation of the Company’s tax benefits, (ii) the time at which the Rights are redeemed, (iii) the time at which the Rights are exchanged, (iv) the effective time of the repeal of Section 382 of the Code if the Board determines that the Rights Agreement is no longer necessary for the preservation of the Company’s tax benefits, (v) the first day of a taxable year to which the Board determines that no NOLs or other tax benefits may be carried forward, and (vi) the day following the certification of the voting results of the Company’s 2019 annual meeting of stockholders, if stockholder ratification of the adoption of the Rights Agreement has not been obtained prior to that date. The Board may redeem all (but not less than all) of the Rights for a redemption price of $0.001 per Right at any time before the later of the Distribution Date and the date of the first public announcement or disclosure by the Company that a person or group has become an Acquiring Person. Once the Rights are redeemed, the right to exercise the Rights will terminate, and the only right of the holders of such Rights will be to receive the redemption price. The redemption price will be adjusted if the Company declares a stock split or issues a stock dividend on common stock. After the later of the Distribution Date and the date of the first public announcement by the Company that a person or group has become an Acquiring Person, but before an Acquiring Person owns 50% or more of the outstanding common stock, the Board may exchange each Right (other than Rights that have become void) for one share of common stock or an equivalent security. The Board may adjust the purchase price of the Series B Preferred Stock, the number of shares of Series B Preferred Stock issuable and the number of outstanding Rights to prevent dilution that may occur as a result of certain events, including, among others, a stock dividend, a stock split or a reclassification of the Series B Preferred Stock or common stock. No adjustments to the purchase price of less than one percent will be made. Before the time the Rights cease to be redeemable, the Board may amend or supplement the Rights Agreement without the consent of the holders of the Rights, except that no amendment may decrease the redemption price below $0.001 per Right. At any time thereafter, the Board may amend or supplement the Rights Agreement to cure an ambiguity, to alter time period provisions, to correct inconsistent provisions or to make any additional changes to the Rights Agreement, but only to the extent that those changes do not impair or adversely affect the interests of the holders of Rights and do not result in the Rights again becoming redeemable. The limitations on the Board’s ability to amend the Rights Agreement does not affect the Board’s power or ability to take any other action that is consistent with its fiduciary duties, including, without limitation, accelerating or extending the expiration date of the Rights, or making any amendment to the Rights Agreement that is permitted by the Rights Agreement or adopting a new rights agreement with such terms as the Board determines in its sole discretion to be appropriate.

STOCKHOLDERS' EQUITY

Common Stock

On July 30, 2015, the Company announced that its Board authorized the repurchase of up to $10,000 of the Company's common stock. The Company intends to make purchases from time to time as market conditions warrant. This authorization does not expire. During the three months ended March 31, 2020, no purchases of shares were made under this authorization. The Company repurchased 10,630 shares on the open market for $154 during the same period last year. As of March 31, 2020, under the July 30, 2015 authorization, the Company had repurchased 432,563 shares for a total cost of $8,297.

In addition to the shares repurchased above under the $10,000 authorization plan, on February 22, 2019, the Company commenced a tender offer to purchase up to 315,000 shares of the Company’s common stock at a purchase price of $15.00 per share. The tender offer expired on March 22, 2019. In accordance with the terms and conditions of the tender offer, the Company acquired 246,863 shares for an aggregate cost of $3,703, excluding fees and expenses of $125.

On March 27, 2020, the Company, in addition to the $10,000 authorization plan, completed transactions with certain stockholders to repurchase 259,331 shares of the Company's common stock for an aggregate cost of $2,238, excluding fees of $1.

Reverse Stock Split

On June 10, 2019, the Company announced a Reverse Split of its outstanding shares of common stock at a ratio of 1-for-10 and that it had also reduced the number of authorized shares of common stock to 20 million shares. The Reverse Split had no effect on the par value of the Company's common stock, but it reduced the number of issued and outstanding shares of common stock by a factor of 10. All issued and outstanding shares, stock-based compensation disclosures, net loss per share, and other share and per share disclosures for all periods presented have been retrospectively adjusted to reflect the impact of this Reverse Split.

STOCKHOLDER RIGHTS PLAN

On October 15, 2018, the Company’s Board declared a dividend to the Company’s stockholders of record as of the close of business on October 25, 2018 (the "Record Date"), for each outstanding share of the Company’s common stock, of one right (a "Right") to purchase one one-hundredth of a share of a new series of participating preferred stock of the Company. The terms of the Rights are set forth in the Rights Agreement, dated as of October 15, 2018 (the "Rights Agreement"), by and between the Company and Computershare Trust Company, N.A., as rights agent. The Company's stockholders approved the Rights Agreement at the Company’s 2019 annual meeting of stockholders held on May 6, 2019. Each Right allows its holder to purchase from the Company one one-hundredth of a share of the Company’s Series B Junior Participating Preferred Stock ("Series B Preferred Stock") for a purchase price of $3.50. Each fractional share of Series B Preferred Stock would give the stockholder approximately the same dividend, voting and liquidation rights as does one share of common stock. Prior to exercise, however, a Right does not give its holder any dividend, voting or liquidation rights.

The Board entered into the Rights Agreement in an effort to preserve the value of the Company’s significant U.S. NOLs and other tax benefits. The Company’s ability to utilize its NOLs may be substantially limited if the Company experiences an "ownership change" within the meaning of Section 382 of the Internal Revenue Code of 1986, as amended (the "Code"). In general, an "ownership change" would occur if the percentage of the Company’s ownership by one or more "5-percent shareholders" (as defined in the Code) increases by more than 50 percent over the lowest percentage owned by such stockholders at any time during the prior three years. The Rights Agreement is designed to preserve the Company’s tax benefits by deterring transfers of common stock that could result in an "ownership change" under Section 382 of the Code.

The Rights Agreement replaced the Company’s prior rights agreement designed to preserve the value of the Company’s NOLs, which was approved by stockholders in 2015 and expired in accordance with its terms in January 2018. The Company also has a provision in its Amended and Restated Certificate of Incorporation (the "Charter Provision") which generally prohibits transfers of its common stock that could result in an ownership change. The Company believes that in light of the significant amount of the NOLs, it is advisable to adopt the Rights Agreement in addition to the Charter Provision. In general terms, the Rights Agreement imposes a significant penalty upon any person or group that acquires beneficial ownership (as defined under the Rights Agreement) of 4.99% or more of the outstanding common stock without the prior approval of the Board (an "Acquiring Person"). Any Rights held by an Acquiring Person are void and may not be exercised.

The Rights will not be exercisable until the earlier of (i) 10 days after a public announcement by the Company that a person or group has become an Acquiring Person; and (ii) 10 business days (or a later date determined by the Board) after a person or group begins a tender or an exchange offer that, if completed, would result in that person or group becoming an Acquiring Person.

Until the date that the Rights become exercisable (the "Distribution Date"), common stock certificates will also evidence the Rights and will contain a notation to that effect. Any transfer of shares of common stock prior to the Distribution Date will constitute a transfer of the associated Rights. After the Distribution Date, the Rights will separate from the common stock and be evidenced by Right certificates, which the Company will mail to all holders of Rights that have not become void. After the Distribution Date, if a person or group already is or becomes an Acquiring Person, all holders of Rights, except the Acquiring Person, may exercise their Rights upon payment of the purchase price to purchase shares of common stock (or other securities or assets as determined by the Board) with a market value of two times the purchase price (a "Flip-in Event"). After the Distribution Date, if a Flip-in Event has already occurred and the Company is acquired in a merger or similar transaction, all holders of Rights, except the Acquiring Person, may exercise their Rights upon payment of the purchase price, to purchase shares of the acquiring or other appropriate entity with a market value of two times the purchase price of the Rights. Rights may be exercised to purchase Series B Preferred Stock only after the Distribution Date occurs and prior to the occurrence of a Flip-in Event as described above. A Distribution Date resulting from the commencement of a tender offer or an exchange offer as described in the second bullet point above could precede the occurrence of a Flip-in Event, in which case the Rights could be exercised to purchase Series B Preferred Stock. A Distribution Date resulting from any occurrence described in the first bullet point above would necessarily follow the occurrence of a Flip-in Event, in which case the Rights could be exercised to purchase shares of common stock (or other securities or assets) as described above.

The Rights Agreement grants discretion to the Board to designate a person as an "Exempt Person" or to designate a transaction involving common stock as an "Exempt Transaction." An "Exempt Person" cannot become an Acquiring Person under the Rights Agreement. The Board can revoke an "Exempt Person" designation if it subsequently makes a contrary determination regarding whether a transaction by such person may jeopardize the availability of the Company’s tax benefits.

The Rights will expire on the earliest of (i) October 15, 2021, the third anniversary of the date on which the Board authorized and declared a dividend of the Rights, or such earlier date as of which the Board determines that the Rights Agreement is no longer necessary for the preservation of the Company’s tax benefits, (ii) the time at which the Rights are redeemed, (iii) the time at which the Rights are exchanged, (iv) the effective time of the repeal of Section 382 of the Code if the Board determines that the Rights Agreement is no longer necessary for the preservation of the Company’s tax benefits, (v) the first day of a taxable year to which the Board determines that no NOLs or other tax benefits may be carried forward, and (vi) the day following the certification of the voting results of the Company’s 2019 annual meeting of stockholders, if stockholder ratification of the adoption of the Rights Agreement has not been obtained prior to that date.

The Board may redeem all (but not less than all) of the Rights for a redemption price of $0.001 per Right at any time before the later of the Distribution Date and the date of the first public announcement or disclosure by the Company that a person or group has become an Acquiring Person. Once the Rights are redeemed, the right to exercise the Rights will terminate, and the only right of the holders of such Rights will be to receive the redemption price. The redemption price will be adjusted if the Company declares a stock split or issues a stock dividend on common stock. After the later of the Distribution Date and the date of the first public announcement by the Company that a person or group has become an Acquiring Person, but before an Acquiring Person owns 50% or more of the outstanding common stock, the Board may exchange each Right (other than Rights that have become void) for one share of common stock or an equivalent security.

The Board may adjust the purchase price of the Series B Preferred Stock, the number of shares of Series B Preferred Stock issuable and the number of outstanding Rights to prevent dilution that may occur as a result of certain events, including, among others, a stock dividend, a stock split or a reclassification of the Series B Preferred Stock or common stock. No adjustments to the purchase price of less than one percent will be made.

Before the time the Rights cease to be redeemable, the Board may amend or supplement the Rights Agreement without the consent of the holders of the Rights, except that no amendment may decrease the redemption price below $0.001 per Right. At any time thereafter, the Board may amend or supplement the Rights Agreement to cure an ambiguity, to alter time period provisions, to correct inconsistent provisions or to make any additional changes to the Rights Agreement, but only to the extent that those changes do not impair or adversely affect the interests of the holders of Rights and do not result in the Rights again becoming redeemable. The limitations on the Board’s ability to amend the Rights Agreement does not affect the Board’s power or ability to take any other action that is consistent with its fiduciary duties, including, without limitation, accelerating or extending the expiration date of the Rights, or making any amendment to the Rights Agreement that is permitted by the Rights Agreement or adopting a new rights agreement with such terms as the Board determines in its sole discretion to be appropriate.