XML 15 R5.htm IDEA: XBRL DOCUMENT
v3.20.2

Condensed Consolidated Statements of Stockholders' Equity (Deficit) - USD ($) $ in Thousands | Total | May 2019 Public Offering | January 2019 Public Offering | Restricted Stock Units (RSUs) | Common Stock | Common Stock May 2019 Public Offering | Common Stock January 2019 Public Offering | Common Stock Restricted Stock Units (RSUs) | Additional Paid-in Capital | Additional Paid-in Capital May 2019 Public Offering | Additional Paid-in Capital January 2019 Public Offering | Accumulated Deficit
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning balance (in shares) at Dec. 31, 2018 |  |  |  |  | 38,932,437 |  |  |  |  |  |  |
Beginning balance at Dec. 31, 2018 | $ 50,090 |  |  |  | $ 39 |  |  |  | $ 145,147 |  |  | $ (95,096)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation | 1,998 |  |  |  |  |  |  |  | 1,998 |  |  |
Common stock issued during period (in shares) |  |  |  |  |  | 11,000,000 | 5,175,000 | 357,168 |  |  |  |
Common stock issued during period |  | $ 20,317 | $ 9,063 |  |  | $ 11 | $ 5 |  |  | $ 20,306 | $ 9,058 |
Common stock issued for consulting services (in shares) |  |  |  |  | 1,425,271 |  |  |  |  |  |  |
Common stock issued for consulting services | 3,044 |  |  |  | $ 2 |  |  |  | 3,042 |  |  |
Net loss | (22,209) |  |  |  |  |  |  |  |  |  |  | (22,209)
Warrants related to Veolia agreement | 2,312 |  |  |  |  |  |  |  | 2,312 |  |  |
Ending balance (in shares) at Jun. 30, 2019 |  |  |  |  | 56,889,876 |  |  |  |  |  |  |
Ending Balance at Jun. 30, 2019 | 64,615 |  |  |  | $ 57 |  |  |  | 181,863 |  |  | (117,305)
Beginning balance (in shares) at Mar. 31, 2019 |  |  |  |  | 44,727,697 |  |  |  |  |  |  |
Beginning balance at Mar. 31, 2019 | 50,278 |  |  |  | $ 45 |  |  |  | 157,037 |  |  | (106,804)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation | 930 |  |  |  |  |  |  |  | 930 |  |  |
Common stock issued during period (in shares) |  |  |  |  |  | 11,000,000 |  | 39,350 |  |  |  |
Common stock issued during period |  | $ 20,317 |  |  |  | $ 11 |  |  |  | $ 20,306 |  |
Common stock issued for consulting services (in shares) |  |  |  |  | 1,122,829 |  |  |  |  |  |  |
Common stock issued for consulting services | 1,857 |  |  |  | $ 1 |  |  |  | 1,856 |  |  |
Net loss | (10,501) |  |  |  |  |  |  |  |  |  |  | (10,501)
Warrants related to Veolia agreement | 1,734 |  |  |  |  |  |  |  | 1,734 |  |  |
Ending balance (in shares) at Jun. 30, 2019 |  |  |  |  | 56,889,876 |  |  |  |  |  |  |
Ending Balance at Jun. 30, 2019 | 64,615 |  |  |  | $ 57 |  |  |  | 181,863 |  |  | (117,305)
Beginning balance (in shares) at Dec. 31, 2019 |  |  |  |  | 57,997,780 |  |  |  |  |  |  |
Beginning balance at Dec. 31, 2019 | 49,589 |  |  |  | $ 58 |  |  |  | 189,422 |  |  | (139,891)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation | 1,510 |  |  |  |  |  |  |  | 1,510 |  |  |
Common stock issued during period (in shares) |  |  |  |  |  |  |  | 2,253,238 |  |  |  |
Common stock issued during period |  |  |  | $ 2 |  |  |  | $ 2 |  |  |  |
Common stock issued for consulting services (in shares) |  |  |  |  | 23,078 |  |  |  |  |  |  |
Common stock issued for consulting services | 24 |  |  |  |  |  |  |  | 24 |  |  |
Net loss | (8,410) |  |  |  |  |  |  |  |  |  |  | (8,410)
Ending balance (in shares) at Jun. 30, 2020 |  |  |  |  | 60,274,096 |  |  |  |  |  |  |
Ending Balance at Jun. 30, 2020 | 42,715 |  |  |  | $ 60 |  |  |  | 190,956 |  |  | (148,301)
Beginning balance (in shares) at Mar. 31, 2020 |  |  |  |  | 59,836,897 |  |  |  |  |  |  |
Beginning balance at Mar. 31, 2020 | 46,144 |  |  |  | $ 60 |  |  |  | 190,402 |  |  | (144,318)
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |
Stock-based compensation | 554 |  |  |  |  |  |  |  | 554 |  |  |
Common stock issued during period (in shares) |  |  |  |  |  |  |  | 437,199 |  |  |  |
Net loss | (3,983) |  |  |  |  |  |  |  |  |  |  | (3,983)
Ending balance (in shares) at Jun. 30, 2020 |  |  |  |  | 60,274,096 |  |  |  |  |  |  |
Ending Balance at Jun. 30, 2020 | $ 42,715 |  |  |  | $ 60 |  |  |  | $ 190,956 |  |  | $ (148,301)

X
- Definition Amount of increase to additional paid-in capital (APIC) for recognition of cost for option under share-based payment arrangement. + References No definition available. + Details
Name: | us-gaap_AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of increase in additional paid in capital (APIC) resulting from the issuance of warrants. Includes allocation of proceeds of debt securities issued with detachable stock purchase warrants. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 25 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109126253&loc=d3e4724-112606 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 + Details
Name: | us-gaap_AdjustmentsToAdditionalPaidInCapitalWarrantIssued
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_IncreaseDecreaseInStockholdersEquityRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669619-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04(22)) -URI http://asc.fasb.org/extlink&oid=116637391&loc=SL114874048-224260 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1B -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669625-108580 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 220 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04(18)) -URI http://asc.fasb.org/extlink&oid=116637232&loc=SL114874131-224263 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(20)) -URI http://asc.fasb.org/extlink&oid=116634182&loc=SL114868664-224227 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
Name: | us-gaap_NetIncomeLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Number of shares issued which are neither cancelled nor held in the treasury. + References No definition available. + Details
Name: | us-gaap_SharesOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of shares issued in lieu of cash for services contributed to the entity. Number of shares includes, but is not limited to, shares issued for services contributed by vendors and founders. + References No definition available. + Details
Name: | us-gaap_StockIssuedDuringPeriodSharesIssuedForServices
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of new stock issued during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_StockIssuedDuringPeriodSharesNewIssues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Value of stock issued in lieu of cash for services contributed to the entity. Value of the stock issued includes, but is not limited to, services contributed by vendors and founders. + References No definition available. + Details
Name: | us-gaap_StockIssuedDuringPeriodValueIssuedForServices
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_StockIssuedDuringPeriodValueNewIssues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 4.E) -URI http://asc.fasb.org/extlink&oid=27010918&loc=d3e74512-122707 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(31)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(30)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_StockholdersEquity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant