SUBSEQUENT EVENTS	6 Months Ended
Jun. 30, 2019
Subsequent Events [Abstract]
SUBSEQUENT EVENTS	NOTE 14. SUBSEQUENT EVENTS In November 2019, we financed the purchase of property and equipment pursuant to a secured promissory note in the amount of $10.0 million. The note bears interest at a fixed rate equal to 7.0% per annum and matures on January 1, 2023. We also amended our credit facility, senior loan facility and the indenture governing the 2023 Notes to permit the purchase pursuant to the note. In November 2019, we consummated the sale of substantially all of our assets in Australia for up to $9.0 million (Australian), payable as follows: (i) $6.0 million (Australian) paid in cash at closing, (ii) $0.6 million (Australian) payable no later than 30 business days after closing and (iii) earnout payments based on the utilization of certain of these assets following the closing in an amount up to $3.0 million (Australian). The earnout payments will be paid over a two–year period and capped at $1.5 million (Australian) in each such year. Subject to certain conditions, we will receive a minimum earnout payment equal to $750 thousand (Australian) in each such year. We also amended our credit facility and senior loan facility to permit the sale and to allow us to retain up to $6.0 million (Australian) of the net proceeds received from the sale, instead of using such net proceeds to repay amounts owed under our credit facility and senior loan facility. In December 2019, we amended our credit facility to, among other things, (i) request and receive advances in the aggregate principal amount of $5.0 million (the “First Advance”); (ii) provide for the ability to request and receive additional advances in the aggregate principal amount of $5.0 million (the “Additional Advances”); and (iii) provide for the issuance of Series F warrants pursuant to a warrant agreement (the “Warrant Agreement”) exercisable for shares of our common stock. We then borrowed the entire amount of the First Advance to be used for additional working capital. Under the Warrant Agreement, subject to certain conditions, we will issue up to approximately 2.0 million Series F warrants (the “First Advance Warrants”) and may issue additional Series F warrants representing up to 10% of the issued and outstanding shares of our common stock, on a fully diluted basis as of the date of the Additional Advances (or approximately 2.3 million shares of our common stock as of the closing date), upon the issuance of the Additional Advances. Each Series F warrant entitles the holder thereof to purchase one share of our common stock at an initial exercise price of $.0001 per share. We have issued approximately 0.9 million First Advance Warrants and, upon approval by our shareholders, will issue the remaining First Advance Warrants. Our credit facility requires us to use our best efforts to obtain shareholder approval for the issuance of the Series F warrants. In January 2020, we and ASV sold certain seismic data and related assets for a purchase price payable as follows: (i) $14.5 million paid to us, on behalf of ASV and us, in cash on the closing date, (ii) $0.5 million paid to us in cash on the closing date, and (iii) earnout payments in an amount of up to $5.0 million to be paid to us, on behalf of ASV and us, based on the licensing fees related to the licensing of certain seismic data following the closing date in an amount in excess of $15.0 million of licensing fees. In connection with the sale, we and ASV also entered into an agreement (the “Sellers’ Agreement”) with respect to certain post–closing indemnification obligations. The Sellers’ Agreement also provides that we will receive all the proceeds paid or payable pursuant to the sale pursuant to clauses (i) and (iii) above, which proceeds will be credited by us towards outstanding amounts owed to us by ASV. We also amended our credit facility, senior loan facility and the indenture governing the 2023 Notes to permit the sale and transactions contemplated by the Sellers’ Agreement and to provide for the application of $14.5 million of the net proceeds received from the sale to reduce indebtedness under our credit facility. Following the sale, the balance of our tax credits receivable, net has been reduced to $2.7 million. As previously disclosed, as a result of certain circumstances giving rise to, or occurring as a result of, the restatement, certain events of default had occurred under our credit facility, senior loan facility, 2023 Notes and Senior Notes. We repaid in full the Senior Notes at maturity in September 2019. In September 2019, we entered into forbearance agreements with respect to our credit facility, senior loan facility and 2023 Notes, whereby the holders of the indebtedness thereunder agreed to refrain from exercising their rights and remedies with respect to events of default that have occurred and other potential defaults or events of default that may occur as further specified in the forbearance agreements until 5:00 p.m. (New York City time) on the earlier of (i) November 30, 2019 and (ii) the date the forbearance agreements otherwise terminated in accordance with their terms. The November 30, 2019 deadline was ultimately extended to February 7, 2020. On February 7, 2020, we entered into amendments and waivers to our credit facility, senior loan facility and the indenture governing the 2023 Notes to, among other things, waive existing events of default thereunder and amend certain covenants requiring us to deliver financial statements, reports, projections and other items thereunder. We evaluated subsequent events for appropriate accounting and disclosure through the date these unaudited condensed consolidated financial statements were issued and determined that there were no material items that required recognition or disclosure in our unaudited condensed consolidated financial statements, except as described above.

SUBSEQUENT EVENTS

6 Months Ended

Jun. 30, 2019

NOTE 14. SUBSEQUENT EVENTS

In November 2019, we financed the purchase of property and equipment pursuant to a secured promissory note in the amount of $10.0 million. The note bears interest at a fixed rate equal to 7.0% per annum and matures on January 1, 2023. We also amended our credit facility, senior loan facility and the indenture governing the 2023 Notes to permit the purchase pursuant to the note.

In November 2019, we consummated the sale of substantially all of our assets in Australia for up to $9.0 million (Australian), payable as follows: (i) $6.0 million (Australian) paid in cash at closing, (ii) $0.6 million (Australian) payable no later than 30 business days after closing and (iii) earnout payments based on the utilization of certain of these assets following the closing in an amount up to $3.0 million (Australian). The earnout payments will be paid over a two–year period and capped at $1.5 million (Australian) in each such year. Subject to certain conditions, we will receive a minimum earnout payment equal to $750 thousand (Australian) in each such year. We also amended our credit facility and senior loan facility to permit the sale and to allow us to retain up to $6.0 million (Australian) of the net proceeds received from the sale, instead of using such net proceeds to repay amounts owed under our credit facility and senior loan facility.

In December 2019, we amended our credit facility to, among other things, (i) request and receive advances in the aggregate principal amount of $5.0 million (the “First Advance”); (ii) provide for the ability to request and receive additional advances in the aggregate principal amount of $5.0 million (the “Additional Advances”); and (iii) provide for the issuance of Series F warrants pursuant to a warrant agreement (the “Warrant Agreement”) exercisable for shares of our common stock. We then borrowed the entire amount of the First Advance to be used for additional working capital. Under the Warrant Agreement, subject to certain conditions, we will issue up to approximately 2.0 million Series F warrants (the “First Advance Warrants”) and may issue additional Series F warrants representing up to 10% of the issued and outstanding shares of our common stock, on a fully diluted basis as of the date of the Additional Advances (or approximately 2.3 million shares of our common stock as of the closing date), upon the issuance of the Additional Advances. Each Series F warrant entitles the holder thereof to purchase one share of our common stock at an initial exercise price of $.0001 per share. We have issued approximately 0.9 million First Advance Warrants and, upon approval by our shareholders, will issue the remaining First Advance Warrants. Our credit facility requires us to use our best efforts to obtain shareholder approval for the issuance of the Series F warrants.

In January 2020, we and ASV sold certain seismic data and related assets for a purchase price payable as follows: (i) $14.5 million paid to us, on behalf of ASV and us, in cash on the closing date, (ii) $0.5 million paid to us in cash on the closing date, and (iii) earnout payments in an amount of up to $5.0 million to be paid to us, on behalf of ASV and us, based on the licensing fees related to the licensing of certain seismic data following the closing date in an amount in excess of $15.0 million of licensing fees. In connection with the sale, we and ASV also entered into an agreement (the “Sellers’ Agreement”) with respect to certain post–closing indemnification obligations. The Sellers’ Agreement also provides that we will receive all the proceeds paid or payable pursuant to the sale pursuant to clauses (i) and (iii) above, which proceeds will be credited by us towards outstanding amounts owed to us by ASV. We also amended our credit facility, senior loan facility and the indenture governing the 2023 Notes to permit the sale and transactions contemplated by the Sellers’ Agreement and to provide for the application of $14.5 million of the net proceeds received from the sale to reduce indebtedness under our credit facility. Following the sale, the balance of our tax credits receivable, net has been reduced to $2.7 million.

As previously disclosed, as a result of certain circumstances giving rise to, or occurring as a result of, the restatement, certain events of default had occurred under our credit facility, senior loan facility, 2023 Notes and Senior Notes. We repaid in full the Senior Notes at maturity in September 2019. In September 2019, we entered into forbearance agreements with respect to our credit facility, senior loan facility and 2023 Notes, whereby the holders of the indebtedness thereunder agreed to refrain from exercising their rights and remedies with respect to events of default that have occurred and other potential defaults or events of default that may occur as further specified in the forbearance agreements until 5:00 p.m. (New York City time) on the earlier of (i) November 30, 2019 and (ii) the date the forbearance agreements otherwise terminated in accordance with their terms. The November 30, 2019 deadline was ultimately extended to February 7, 2020. On February 7, 2020, we entered into amendments and waivers to our credit facility, senior loan facility and the indenture governing the 2023 Notes to, among other things, waive existing events of default thereunder and amend certain covenants requiring us to deliver financial statements, reports, projections and other items thereunder.

We evaluated subsequent events for appropriate accounting and disclosure through the date these unaudited condensed consolidated financial statements were issued and determined that there were no material items that required recognition or disclosure in our unaudited condensed consolidated financial statements, except as described above.