Aqua Metals (AQMS) 10-Q 14 Aug 24 2024 Q2 Quarterly report Financial data

Document And Entity Information

Document And Entity Information - shares	6 Months Ended
	Jun. 30, 2024	Aug. 02, 2024
Document Information [Line Items]
Entity Central Index Key	0001621832
Entity Registrant Name	Aqua Metals, Inc.
Amendment Flag	false
Current Fiscal Year End Date	--12-31
Document Fiscal Period Focus	Q2
Document Fiscal Year Focus	2024
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2024
Document Transition Report	false
Entity File Number	001-37515
Entity Incorporation, State or Country Code	DE
Entity Tax Identification Number	47-1169572
Entity Address, Address Line One	5370 Kietzke Lane, Suite 201
Entity Address, City or Town	Reno
Entity Address, State or Province	NV
Entity Address, Postal Zip Code	89511
City Area Code	775
Local Phone Number	446-4418
Title of 12(b) Security	Common Stock
Trading Symbol	AQMS
Security Exchange Name	NASDAQ
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Non-accelerated Filer
Entity Small Business	true
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		135,799,315

Condensed Consolidated Balance

Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Current assets
Cash and cash equivalents	$ 7,833	$ 16,522
Note receivable - LINICO	400	600
Accounts receivable	0	67
Inventory	908	929
Prepaid expenses and other current assets	174	181
Total current assets	9,315	18,299
Non-current assets
Property, plant and equipment, net	17,009	10,347
Intellectual property, net	191	281
Other assets	7,143	4,673
Total non-current assets	24,343	15,301
Total assets	33,658	33,600
Current liabilities
Accounts payable	1,679	1,836
Accrued Expenses	2,908	2,467
Lease liability, current portion	288	275
Note payable, current portion	2,979	35
Total current liabilities	7,854	4,613
Lease liability, non-current portion	593	0
Note payable, non-current portion	0	2,923
Total liabilities	8,447	7,536
Commitments and contingencies (see Note 12)
Stockholders’ equity
Common stock; $0.001 par value; 300,000,000 shares authorized; 134,257,193 and 133,800,547, shares issued and outstanding as of June 30, 2024, respectively and 108,308,661 and 107,880,095, shares issued and outstanding as of December 31, 2023, respectively	134	108
Additional paid-in capital	260,554	249,687
Accumulated deficit	(235,117)	(223,215)
Treasury stock, at cost; common shares: 456,646 and 428,566 as of June 30, 2024 and December 31, 2023, respectively	(360)	(516)
Total stockholders’ equity	25,211	26,064
Total liabilities and stockholders’ equity	$ 33,658	$ 33,600

Condensed Consolidated Balanc_2

Condensed Consolidated Balance Sheets (Unaudited) (Parentheticals) - $ / shares	Jun. 30, 2024	Dec. 31, 2023
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	300,000,000	300,000,000
Common stock, shares issued (in shares)	134,257,193	108,308,661
Common stock, shares outstanding (in shares)	133,800,547	107,880,095
Treasury Stock, Common, Shares (in shares)	456,646	428,566

Condensed Consolidated Statemen

Condensed Consolidated Statements of Operations (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Operating cost and expense
Plant operations	$ 2,373	$ 1,481	$ 4,582	$ 2,546
Research and development cost	363	525	951	970
Gain on disposal of property, plant and equipment	0	(3)	0	(23)
General and administrative expense	3,426	2,849	6,421	5,855
Total operating expense	6,162	4,852	11,954	9,348
Loss from operations	(6,162)	(4,852)	(11,954)	(9,348)
Other income and expense
Interest expense	(84)	(255)	(190)	(431)
Interest and other income	99	348	245	414
Total other income (expense), net	15	93	55	(17)
Loss before income tax expense	(6,147)	(4,759)	(11,899)	(9,365)
Income tax expense	3	0	3	0
Net loss	$ (6,150)	$ (4,759)	$ (11,902)	$ (9,365)
Weighted average shares outstanding, basic and diluted (in shares)	123,793,140	84,184,884	116,923,889	82,743,345
Basic and diluted net loss per share (in dollars per share)	$ (0.05)	$ (0.06)	$ (0.1)	$ (0.11)

Condensed Consolidated Statem_2

Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands	Public Offering [Member] Common Stock Outstanding [Member]	Public Offering [Member] Additional Paid-in Capital [Member]	Public Offering [Member] Retained Earnings [Member]	Public Offering [Member] Treasury Stock, Common [Member]	Public Offering [Member]	ATM [Member] Common Stock Outstanding [Member]	ATM [Member] Additional Paid-in Capital [Member]	ATM [Member] Retained Earnings [Member]	ATM [Member] Treasury Stock, Common [Member]	ATM [Member]	Common Stock Outstanding [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock, Common [Member]	Total
Balance (in shares) at Dec. 31, 2022											79,481,751			0
Balance at Dec. 31, 2022											$ 79	$ 220,114	$ (199,277)	$ 0	$ 20,916
Stock-based compensation											$ 0	1,285	0	$ 0	1,285
Common stock issued to employees and directors, includes RSUs vesting and withholdings to satisfy tax withholdings on RSUs vesting (in shares)											880,763			510,632
Common stock issued to employees and directors, includes RSUs vesting and withholdings to satisfy tax withholdings on RSUs vesting											$ 1	0	0	$ (577)	(576)
Common stock issued for employee stock purchase plan sales (in shares)											192,707
Common stock issued for employee stock purchase plan sales											$ 0	122	0	0	122
Common stock and warrants issued, net of transaction costs (in shares)						2,409,707					57,375
Common stock and warrants issued, net of transaction costs						$ 3	$ 2,781	$ 0	$ 0	$ 2,784	$ 0	64	0	0	64
Net loss											0	0	(9,365)	0	(9,365)
Stock-based compensation											$ 0	1,285	0	0	1,285
RSUs issued for consulting services (in shares)											15,781
RSUs issued for consulting services											$ 0	12	0	0	12
Common stock issued for class action settlement (in shares)											469,366
Common stock issued for class action settlement											$ 1	500	0	$ 0	501
Balance (in shares) at Jun. 30, 2023											83,507,450			510,632
Balance at Jun. 30, 2023											$ 84	224,878	(208,642)	$ (577)	15,743
Balance (in shares) at Mar. 31, 2023											82,670,169			510,632
Balance at Mar. 31, 2023											$ 83	223,453	(203,883)	$ (577)	19,076
Stock-based compensation											$ 0	599	0	0	599
Common stock issued to employees and directors, includes RSUs vesting and withholdings to satisfy tax withholdings on RSUs vesting (in shares)											58,652
Common stock issued to employees and directors, includes RSUs vesting and withholdings to satisfy tax withholdings on RSUs vesting											$ 0	0	0	$ 0	0
Common stock and warrants issued, net of transaction costs (in shares)						746,754					31,875			0
Common stock and warrants issued, net of transaction costs						$ 1	794	0	0	$ 795	$ 0	32	0	$ 0	32
Net loss											0	0	(4,759)	0	(4,759)
Stock-based compensation											$ 0	599	0	$ 0	599
Balance (in shares) at Jun. 30, 2023											83,507,450			510,632
Balance at Jun. 30, 2023											$ 84	224,878	(208,642)	$ (577)	15,743
Balance (in shares) at Dec. 31, 2023											107,880,095			428,566
Balance at Dec. 31, 2023											$ 108	249,687	(223,215)	$ (516)	26,064
Stock-based compensation											$ 0	1,525	0	$ 0	1,525
Common stock issued to employees and directors, includes RSUs vesting and withholdings to satisfy tax withholdings on RSUs vesting (in shares)											687,187			28,080
Common stock issued to employees and directors, includes RSUs vesting and withholdings to satisfy tax withholdings on RSUs vesting											$ 1	(516)	0	$ 156	$ (359)
Common stock issued for employee stock purchase plan sales (in shares)											68,882				68,882
Common stock issued for employee stock purchase plan sales											$ 0	35	0	0	$ 35
Common stock and warrants issued, net of transaction costs (in shares)	20,125,000					5,039,383				5,039,383
Common stock and warrants issued, net of transaction costs	$ 20	$ 7,286	$ 0	$ 0	$ 7,306	$ 5	2,537	0	0	$ 2,542
Net loss											0	0	(11,902)	0	(11,902)
Stock-based compensation											$ 0	1,525	0	$ 0	1,525
Balance (in shares) at Jun. 30, 2024											133,800,547			456,646
Balance at Jun. 30, 2024											$ 134	260,554	(235,117)	$ (360)	25,211
Balance (in shares) at Mar. 31, 2024											112,674,915			456,646
Balance at Mar. 31, 2024											$ 113	252,066	(228,967)	$ (360)	22,852
Stock-based compensation											$ 0	751	0	0	751
Common stock issued to employees and directors, includes RSUs vesting and withholdings to satisfy tax withholdings on RSUs vesting (in shares)											47,978
Common stock issued to employees and directors, includes RSUs vesting and withholdings to satisfy tax withholdings on RSUs vesting											$ 0	0	0	0	0
Common stock issued for employee stock purchase plan sales (in shares)											68,882
Common stock issued for employee stock purchase plan sales											$ 0	35	0	0	35
Common stock and warrants issued, net of transaction costs (in shares)	20,125,000					883,772
Common stock and warrants issued, net of transaction costs	$ 20	$ 7,286	$ 0	$ 0	$ 7,306	$ 1	$ 416	$ 0	$ 0	$ 417
Net loss											0	0	(6,150)	0	(6,150)
Stock-based compensation											$ 0	751	0	$ 0	751
Balance (in shares) at Jun. 30, 2024											133,800,547			456,646
Balance at Jun. 30, 2024											$ 134	$ 260,554	$ (235,117)	$ (360)	$ 25,211

Condensed Consolidated Statem_3

Condensed Consolidated Statements of Stockholders' Equity (Unaudited) (Parentheticals) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Public Offering [Member]
Common stock issued, transaction costs	$ 744		$ 744
ATM [Member]
Common stock issued, transaction costs	$ 13	$ 25	$ 87	$ 87

Condensed Consolidated Statem_4

Condensed Consolidated Statements of Cash Flows (Unaudited) - USD ($)	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023
Cash flows from operating activities:
Net loss	$ (11,902,000)	$ (9,365,000)
Reconciliation of net loss to net cash used in operating activities
Depreciation and ROU asset amortization	575,000	455,000
Amortization of intellectual property	90,000	90,000
Fair value of common stock issued for director fees	0	64,000
Fair value of common stock issued for consulting services	0	12,000
Stock-based compensation	1,525,000	1,286,000
Amortization of deferred financing costs	20,000	112,000
Gain on disposal of property, plant and equipment	0	(23,000)
Inventory net realizable value adjustment	240,000	0
Write off of debt issuance costs	563,000	0
Changes in operating assets and liabilities
Proceeds from leasing of building	0	12,278,000
Accounts receivable	67,000	(90,000)
Inventory	(219,000)	(353,000)
Prepaid expenses and other current assets	6,000	80,000
Accounts payable	(29,000)	49,000
Accrued expenses	1,092,000	1,024,000
Other assets and liabilities	(30,000)	(147,000)
Net cash provided by (used in) operating activities	(8,002,000)	5,472,000
Cash flows from investing activities:
Purchases of property, plant and equipment	(6,440,000)	(5,503,000)
Proceeds from sale of equipment	0	67,000
Proceeds from note receivable	200,000	0
Equipment deposits	(3,522,000)	(75,000)
Net cash used in investing activities	(9,762,000)	(5,511,000)
Cash flows from financing activities:
Proceeds from issuance of common stock and warrants, net of transaction costs	7,306,000	0
Proceeds from employee stock purchase plan	35,000	14,000
Payments on note payable	0	(6,000,000)
Principal payments on finance leases	(35,000)	0
Proceeds from note payable, net	0	2,932,000
Cash paid for tax withholdings on RSUs vesting	(360,000)	(577,000)
Debt issuance costs	(413,000)	0
Proceeds from ATM, net	2,542,000	2,784,000
Net cash provided by (used in) financing activities	9,075,000	(847,000)
Net decrease in cash and cash equivalents	(8,689,000)	(886,000)
Cash and cash equivalents at beginning of period	16,522,000	7,082,000
Cash and cash equivalents at end of period	7,833,000	6,196,000
Supplemental disclosure of cash flows information
Cash paid for income taxes	3,000	0
Cash paid for interest	166,000	309,000
Supplemental disclosure of non-cash transactions
Acquisitions of property, plant and equipment included in accounts payable	945,000	349,000
Acquisitions of property, plant and equipment included in accrued expenses	646,000	210,000
Equity included in accrued expenses	$ 0	$ 608,000

Note 1 - Organization

Note 1 - Organization	6 Months Ended
	Jun. 30, 2024
Notes to Financial Statements
Nature of Operations [Text Block]	1. Aqua Metals (NASDAQ: AQMS one We are in the process of demonstrating that Li AquaRefining, which is fundamentally non-polluting, can create the highest quality and highest yields of recovered minerals from lithium-ion batteries with lower waste streams and lower costs than existing alternatives. Our focus for the lead market is providing equipment and licensing of our lead acid battery recycling technologies in an enabler model which allows us to work with anyone in the industry globally and address the entire marketplace. Our focus for the lithium market includes operating our first Liquidity and Going Concern Assessment For the six June 30, 2024 2023 , June 30, 2024 , February 1, 2025 10. not Management believes that the Company does not twelve not twelve The accompanying condensed consolidated financial statements have been prepared under the assumption the Company will continue to operate as a going concern, which contemplates the realization of assets and the settlement of liabilities in the normal course of business. The condensed consolidated financial statements do not may Reclassification of Prior Period Financial Statements For the three six June 30, 2024 December 31, 2023 10 We have reclassified the prior period Condensed Consolidated Statement of Operations included in this filing to conform to the current period presentation, as shown in the following table (in thousands): Three Months Ended June 30, 2023 Six Months Ended June 30, 2023 As Reported Reclassification As Reclassified As Reported Reclassification As Reclassified Operating cost and expense Gain on disposal of property, plant and equipment — (3 ) (3 ) — (23 ) (23 ) Total operating expense $ 4,855 $ (3 ) $ 4,852 $ 9,371 $ (23 ) $ 9,348 Income (loss) from operations $ (4,855 ) $ 3 $ (4,852 ) $ (9,371 ) $ 23 $ (9,348 ) Other income and expense Gain on disposal of property, plant and equipment 3 (3 ) — 23 (23 ) — Total other income (expense), net $ 96 $ (3 ) $ 93 $ 6 $ (23 ) $ (17 )

Note 2 - Summary of Significant

Note 2 - Summary of Significant Accounting Policies	6 Months Ended
	Jun. 30, 2024
Notes to Financial Statements
Significant Accounting Policies [Text Block]	2. The significant accounting policies and estimates used in preparation of the condensed consolidated financial statements are described in the Company’s audited consolidated financial statements as of and for the year ended December 31, 2023 10 December 31, 2023 March 28, 2024. no three six June 30, 2024 Basis of presentation The accompanying unaudited condensed consolidated financial statements of Aqua Metals, Inc. and subsidiaries (collectively, the “Company” or “Aqua Metals”) have been prepared in accordance with the interim reporting requirements of Form 10 December 31, 2023 10 March 28, 2024. not June 30, 2024 three six June 30, 2024 June 30, 2023 three six June 30, 2024 June 30, 2023 six June 30, 2024 June 30, 2023 December 31, 2023 not The results of operations for the three six June 30, 2024 not may December 31, 2024 Principles of consolidation The accompanying unaudited condensed consolidated financial statements include the accounts of the Company and its subsidiaries, all of which are wholly-owned subsidiaries. Inter-company accounts and transactions have been eliminated in consolidation. Use of estimates The preparation of the condensed consolidated financial statements requires management of the Company to make a number of estimates and assumptions relating to the reported amount of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements, and the reported amounts of expenses during the period. Significant items subject to such estimates and assumptions include the carrying amount and valuation of long-lived assets, valuation allowances for deferred tax assets, and the determination of stock-based compensation expense. Actual results could differ from those estimates. Net loss per share Basic net loss per share is computed by dividing net loss by the weighted average number of common shares outstanding during the period. Diluted net loss per share is computed by dividing the net loss by the weighted average number of common share equivalents outstanding for the period determined using the treasury-stock method or the if-converted method, as applicable. For purposes of this calculation, stock options, restricted stock units (RSUs) and warrants to purchase common stock are considered to be common stock equivalents and are only included in the calculation of diluted net loss per share when their effect is dilutive. The following shares underlying outstanding convertible notes, stock options, RSUs and warrants to purchase common stock were anti-dilutive due to a net loss in the periods presented and, therefore, were excluded from the dilutive weighted average securities computation for the three six June 30 Three Months Ended June 30, Six Months Ended June 30, Excluded potentially dilutive weighted average securities (1): 2024 2023 2024 2023 Unvested restricted stock units 8,443,517 6,181,141 8,350,321 5,770,715 Options to purchase common stock — 417,749 — 704,316 Financing warrants to purchase common stock 11,597,752 6,372 6,084,422 6,372 Total potential dilutive weighted average securities 20,041,269 6,605,262 14,434,743 6,481,403 ( 1 Segment and geographic information Our chief operating decision maker (“CODM”) is the Chief Executive Officer. Operating segments are defined as components of an enterprise engaging in business activities for which discrete financial information is available and regularly reviewed by the CODM in deciding how to allocate resources and in assessing performance. The CODM views its operations and manages its business in one Concentration of credit risk The Company did not three six June 30, 2024 2023 no June 30, 2024 December 31, 2023 December 31, 2023 6K Recent accounting pronouncements Recently issued accounting pronouncements not yet adopted In November 2023, No. 2023 07, 280 December 15, 2023, December 15, 2024. In December 2023, No. 2023 09, 740 December 15, 2024. not

Note 3 - Revenue Recognition

Note 3 - Revenue Recognition	6 Months Ended
	Jun. 30, 2024
Notes to Financial Statements
Revenue from Contract with Customer [Text Block]	3. The Company has historically generated revenues by recycling lead acid batteries (“LABs”) and selling the recovered lead to its customers. The Company was not three six June 30, 2024 2023

Note 4 - Note Receivable

Note 4 - Note Receivable	6 Months Ended
	Jun. 30, 2024
Notes to Financial Statements
Loans, Notes, Trade and Other Receivables Disclosure [Text Block]	4. During the year ended December 31, 2023, 12 January 2024. June 30, 2024 December 31, 2023 The Company accounted for the LINICO investment under ASC 321,

Note 5 - Inventory

Note 5 - Inventory	6 Months Ended
	Jun. 30, 2024
Notes to Financial Statements
Inventory Disclosure [Text Block]	5. Inventory consisted of the following (in thousands): June 30, 2024 December 31, 2023 Work in process $ 157 $ 135 Raw materials 751 794 Total inventory $ 908 $ 929 We write-down inventory when evidence exists that the net realizable value of inventory is less than the cost. During the three six June 30, 2024

Note 6 - Property and Equipment

Note 6 - Property and Equipment, Net	6 Months Ended
	Jun. 30, 2024
Notes to Financial Statements
Property, Plant and Equipment Disclosure [Text Block]	6. Property, plant and equipment, net, consisted of the following (in thousands): Useful Life Asset Class (Years) June 30, 2024 December 31, 2023 Operational equipment 3 - 10 $ 3,581 $ 3,581 Lab equipment 5 1,144 817 Computer equipment 3 111 89 Office furniture and equipment 3 90 90 Leasehold improvements 2.5 80 80 Land - 1,141 1,141 Building 39 3,131 3,131 Equipment under construction 9,813 3,047 19,091 11,976 Less: accumulated depreciation (2,082 ) (1,629 ) Total property, plant and equipment, net $ 17,009 $ 10,347 Property, plant and equipment depreciation expense was $235,000 and $453,000 for the three six June 30, 2024 three six June 30, 2023

Note 7 - Other Assets

Note 7 - Other Assets	6 Months Ended
	Jun. 30, 2024
Notes to Financial Statements
Other Assets Disclosure [Text Block]	7. Other assets consist of the following (in thousands): June 30, 2024 December 31, 2023 Equipment deposits (1) $ 6,466 $ 4,291 Nevada facilities Right of Use Assets (2) 657 222 Other assets 20 160 Total other assets, non-current $ 7,143 $ 4,673 ( 1 ( 2 9.

Note 8 - Accrued Expenses

Note 8 - Accrued Expenses	6 Months Ended
	Jun. 30, 2024
Notes to Financial Statements
Accounts Payable and Accrued Liabilities Disclosure [Text Block]	8. Accrued expenses consist of the following (in thousands): June 30, 2024 December 31, 2023 Property, plant and equipment related $ 1,207 $ 1,857 Payroll related 1,527 506 Professional services 105 26 Other 69 78 Total accrued expenses $ 2,908 $ 2,467

Note 9 - Leases

Note 9 - Leases	6 Months Ended
	Jun. 30, 2024
Notes to Financial Statements
Lessee, Operating and Finance Leases [Text Block]	9. As of June 30, 2024 two two one On March 14, 2024, 5370 not On June 9, 2024, 160 not The Company currently maintains two November 2021, October 2024. April 1, 2024 2029. Information related to the Company's right-of-use assets and related lease liabilities were as follows (in thousands): Three Months Ended Six Months Ended June 30, June 30, 2024 2023 2024 2023 Cash paid for operating lease liabilities $ 68 $ 66 $ 136 $ 133 Operating lease cost $ 71 $ 65 $ 137 $ 131 Cash paid for finance lease liabilities $ 25 $ 15 $ 39 $ 17 Interest expense $ 3 $ 2 $ 4 $ 2 June 30, 2024 June 30, 2023 Weighted-average remaining lease term (years) - operating leases 2.6 1.4 Weighted-average discount rate - operating leases 10.48 % 6.16 % Weighted-average remaining lease term (years) - finance leases 2.5 0.8 Weighted-average discount rate - finance leases 5.12 % 7.48 % Right-of-use assets obtained in exchange for lease obligations: Operating leases $ 517 Future maturities of lease liabilities as of June 30, 2024 Due in 12-month period ended June 30, Operating Leases Finance Leases 2024 $ 140 $ 42 2025 291 47 2026 182 47 2027 149 107 Less imputed interest (99 ) (23 ) Total lease liabilities $ 661 $ 220 Current lease liabilities $ 231 $ 57 Non-current lease liabilities 430 163 Total lease liabilities $ 661 $ 220

Note 10 - Note Payable

Note 10 - Note Payable	6 Months Ended
	Jun. 30, 2024
Notes to Financial Statements
Debt Disclosure [Text Block]	10. On February 1, 2023, 2999 89434 first twenty-four February 1, 2025. 9 June 30, 2024 December 31, 2023 first Note payable is comprised of the following (in thousands): June 30, 2024 December 31, 2023 Note payable, current portion Summit Investment Services, LLC $ 3,000 $ 35 Less issuance costs (21 ) — Total note payable, current portion $ 2,979 $ 35 Note payable, non-current portion Summit Investment Services, LLC $ — $ 3,000 Less issuance costs — (77 ) Total note payable, non-current portion $ — $ 2,923

Note 11 - Stockholders' Equity

Note 11 - Stockholders' Equity	6 Months Ended
	Jun. 30, 2024
Notes to Financial Statements
Equity [Text Block]	11. Shares issued During the six June 30, 2024 six June 30, 2024 During the six June 30, 2024 During the six June 30, 2024 During the six June 30, 2024 In May 2024, one $0.01 $7.3 Warrant issued In connection with the above-described May 2024 , 20,125,000 May 14, 2024. May 14, 2029. In May 2024 , May 14, 2029. Stock-based compensation The stock-based compensation expense was allocated as follows: Three Months Ended June 30, Six Months Ended June 30, 2024 2023 2024 2023 Plant operations $ 99 $ 18 $ 185 $ 47 Research and development cost 16 22 36 40 General and administrative expense 636 559 1,304 1,199 Total $ 751 $ 599 $ 1,525 $ 1,286 2014 We have adopted the Aqua Metals, Inc. 2014 June 30, 2024 2019 In 2019, 2019 “2019 2019 2019 2019 may may not may not June 30, 2024 Number of Shares Number of Available for RSUs Grant Outstanding Balances, December 31, 2023 1,420,454 8,654,491 Granted (236,522 ) 236,522 Exercised/ Released — (1,143,833 ) Forfeited 157,261 (157,261 ) Returned to Plan 456,646 — Balances, June 30, 2024 1,797,839 7,589,919 Restricted stock units During the first 2024, three three During the second 2024, three three

Note 12 - Commitments and Conti

Note 12 - Commitments and Contingencies	6 Months Ended
	Jun. 30, 2024
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	12. We may , may not

Note 13 - Subsequent Events

Note 13 - Subsequent Events	6 Months Ended
	Jun. 30, 2024
Notes to Financial Statements
Subsequent Events [Text Block]	13. On August 5, 2024 not

Insider Trading Arrangements

Insider Trading Arrangements	6 Months Ended
	Jun. 30, 2024
Insider Trading Arr Line Items
Material Terms of Trading Arrangement [Text Block]	OTHER
Rule 10b5-1 Arrangement Adopted [Flag]	false
Non-Rule 10b5-1 Arrangement Adopted [Flag]	false
Rule 10b5-1 Arrangement Terminated [Flag]	false
Non-Rule 10b5-1 Arrangement Terminated [Flag]	false

Significant Accounting Policies

Significant Accounting Policies (Policies)	6 Months Ended
	Jun. 30, 2024
Accounting Policies [Abstract]
Basis of Accounting, Policy [Policy Text Block]	Basis of presentation The accompanying unaudited condensed consolidated financial statements of Aqua Metals, Inc. and subsidiaries (collectively, the “Company” or “Aqua Metals”) have been prepared in accordance with the interim reporting requirements of Form 10 December 31, 2023 10 March 28, 2024. not June 30, 2024 three six June 30, 2024 June 30, 2023 three six June 30, 2024 June 30, 2023 six June 30, 2024 June 30, 2023 December 31, 2023 not The results of operations for the three six June 30, 2024 not may December 31, 2024
Consolidation, Policy [Policy Text Block]	Principles of consolidation The accompanying unaudited condensed consolidated financial statements include the accounts of the Company and its subsidiaries, all of which are wholly-owned subsidiaries. Inter-company accounts and transactions have been eliminated in consolidation.
Use of Estimates, Policy [Policy Text Block]	Use of estimates The preparation of the condensed consolidated financial statements requires management of the Company to make a number of estimates and assumptions relating to the reported amount of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the condensed consolidated financial statements, and the reported amounts of expenses during the period. Significant items subject to such estimates and assumptions include the carrying amount and valuation of long-lived assets, valuation allowances for deferred tax assets, and the determination of stock-based compensation expense. Actual results could differ from those estimates.
Earnings Per Share, Policy [Policy Text Block]	Net loss per share Basic net loss per share is computed by dividing net loss by the weighted average number of common shares outstanding during the period. Diluted net loss per share is computed by dividing the net loss by the weighted average number of common share equivalents outstanding for the period determined using the treasury-stock method or the if-converted method, as applicable. For purposes of this calculation, stock options, restricted stock units (RSUs) and warrants to purchase common stock are considered to be common stock equivalents and are only included in the calculation of diluted net loss per share when their effect is dilutive. The following shares underlying outstanding convertible notes, stock options, RSUs and warrants to purchase common stock were anti-dilutive due to a net loss in the periods presented and, therefore, were excluded from the dilutive weighted average securities computation for the three six June 30 Three Months Ended June 30, Six Months Ended June 30, Excluded potentially dilutive weighted average securities (1): 2024 2023 2024 2023 Unvested restricted stock units 8,443,517 6,181,141 8,350,321 5,770,715 Options to purchase common stock — 417,749 — 704,316 Financing warrants to purchase common stock 11,597,752 6,372 6,084,422 6,372 Total potential dilutive weighted average securities 20,041,269 6,605,262 14,434,743 6,481,403 ( 1
Segment Reporting, Policy [Policy Text Block]	Segment and geographic information Our chief operating decision maker (“CODM”) is the Chief Executive Officer. Operating segments are defined as components of an enterprise engaging in business activities for which discrete financial information is available and regularly reviewed by the CODM in deciding how to allocate resources and in assessing performance. The CODM views its operations and manages its business in one
Concentration Risk, Credit Risk, Policy [Policy Text Block]	Concentration of credit risk The Company did not three six June 30, 2024 2023 no June 30, 2024 December 31, 2023 December 31, 2023 6K
New Accounting Pronouncements, Policy [Policy Text Block]	Recent accounting pronouncements Recently issued accounting pronouncements not yet adopted In November 2023, No. 2023 07, 280 December 15, 2023, December 15, 2024. In December 2023, No. 2023 09, 740 December 15, 2024. not

Note 1 - Organization (Tables)

Note 1 - Organization (Tables)	6 Months Ended
	Jun. 30, 2024
Notes Tables
Schedule of Error Corrections and Prior Period Adjustments [Table Text Block]	Three Months Ended June 30, 2023 Six Months Ended June 30, 2023 As Reported Reclassification As Reclassified As Reported Reclassification As Reclassified Operating cost and expense Gain on disposal of property, plant and equipment — (3 ) (3 ) — (23 ) (23 ) Total operating expense $ 4,855 $ (3 ) $ 4,852 $ 9,371 $ (23 ) $ 9,348 Income (loss) from operations $ (4,855 ) $ 3 $ (4,852 ) $ (9,371 ) $ 23 $ (9,348 ) Other income and expense Gain on disposal of property, plant and equipment 3 (3 ) — 23 (23 ) — Total other income (expense), net $ 96 $ (3 ) $ 93 $ 6 $ (23 ) $ (17 )

Note 2 - Summary of Significa_2

Note 2 - Summary of Significant Accounting Policies (Tables)	6 Months Ended
	Jun. 30, 2024
Notes Tables
Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]	Three Months Ended June 30, Six Months Ended June 30, Excluded potentially dilutive weighted average securities (1): 2024 2023 2024 2023 Unvested restricted stock units 8,443,517 6,181,141 8,350,321 5,770,715 Options to purchase common stock — 417,749 — 704,316 Financing warrants to purchase common stock 11,597,752 6,372 6,084,422 6,372 Total potential dilutive weighted average securities 20,041,269 6,605,262 14,434,743 6,481,403

Note 5 - Inventory (Tables)

Note 5 - Inventory (Tables)	6 Months Ended
	Jun. 30, 2024
Notes Tables
Schedule of Inventory, Current [Table Text Block]	June 30, 2024 December 31, 2023 Work in process $ 157 $ 135 Raw materials 751 794 Total inventory $ 908 $ 929

Note 6 - Property and Equipme_2

Note 6 - Property and Equipment, Net (Tables)	6 Months Ended
	Jun. 30, 2024
Notes Tables
Property, Plant and Equipment [Table Text Block]	Useful Life Asset Class (Years) June 30, 2024 December 31, 2023 Operational equipment 3 - 10 $ 3,581 $ 3,581 Lab equipment 5 1,144 817 Computer equipment 3 111 89 Office furniture and equipment 3 90 90 Leasehold improvements 2.5 80 80 Land - 1,141 1,141 Building 39 3,131 3,131 Equipment under construction 9,813 3,047 19,091 11,976 Less: accumulated depreciation (2,082 ) (1,629 ) Total property, plant and equipment, net $ 17,009 $ 10,347

Note 7 - Other Assets (Tables)

Note 7 - Other Assets (Tables)	6 Months Ended
	Jun. 30, 2024
Notes Tables
Schedule of Other Assets [Table Text Block]	June 30, 2024 December 31, 2023 Equipment deposits (1) $ 6,466 $ 4,291 Nevada facilities Right of Use Assets (2) 657 222 Other assets 20 160 Total other assets, non-current $ 7,143 $ 4,673

Note 8 - Accrued Expenses (Tabl

Note 8 - Accrued Expenses (Tables)	6 Months Ended
	Jun. 30, 2024
Notes Tables
Schedule of Accrued Liabilities [Table Text Block]	June 30, 2024 December 31, 2023 Property, plant and equipment related $ 1,207 $ 1,857 Payroll related 1,527 506 Professional services 105 26 Other 69 78 Total accrued expenses $ 2,908 $ 2,467

Note 9 - Leases (Tables)

Note 9 - Leases (Tables)	6 Months Ended
	Jun. 30, 2024
Notes Tables
Lease, Cost [Table Text Block]	Three Months Ended Six Months Ended June 30, June 30, 2024 2023 2024 2023 Cash paid for operating lease liabilities $ 68 $ 66 $ 136 $ 133 Operating lease cost $ 71 $ 65 $ 137 $ 131 Cash paid for finance lease liabilities $ 25 $ 15 $ 39 $ 17 Interest expense $ 3 $ 2 $ 4 $ 2 June 30, 2024 June 30, 2023 Weighted-average remaining lease term (years) - operating leases 2.6 1.4 Weighted-average discount rate - operating leases 10.48 % 6.16 % Weighted-average remaining lease term (years) - finance leases 2.5 0.8 Weighted-average discount rate - finance leases 5.12 % 7.48 % Right-of-use assets obtained in exchange for lease obligations: Operating leases $ 517
Lessee, Lease Liability, Maturity [Table Text Block]	Due in 12-month period ended June 30, Operating Leases Finance Leases 2024 $ 140 $ 42 2025 291 47 2026 182 47 2027 149 107 Less imputed interest (99 ) (23 ) Total lease liabilities $ 661 $ 220 Current lease liabilities $ 231 $ 57 Non-current lease liabilities 430 163 Total lease liabilities $ 661 $ 220

Note 10 - Note Payable (Tables)

Note 10 - Note Payable (Tables)	6 Months Ended
	Jun. 30, 2024
Notes Tables
Schedule of Debt [Table Text Block]	June 30, 2024 December 31, 2023 Note payable, current portion Summit Investment Services, LLC $ 3,000 $ 35 Less issuance costs (21 ) — Total note payable, current portion $ 2,979 $ 35 Note payable, non-current portion Summit Investment Services, LLC $ — $ 3,000 Less issuance costs — (77 ) Total note payable, non-current portion $ — $ 2,923

Note 11 - Stockholders' Equity

Note 11 - Stockholders' Equity (Tables)	6 Months Ended
	Jun. 30, 2024
Notes Tables
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block]	Three Months Ended June 30, Six Months Ended June 30, 2024 2023 2024 2023 Plant operations $ 99 $ 18 $ 185 $ 47 Research and development cost 16 22 36 40 General and administrative expense 636 559 1,304 1,199 Total $ 751 $ 599 $ 1,525 $ 1,286
Share-based Payment Arrangement, Option and Restricted Stock Unit, Activity [Table Text Block]	Number of Shares Number of Available for RSUs Grant Outstanding Balances, December 31, 2023 1,420,454 8,654,491 Granted (236,522 ) 236,522 Exercised/ Released — (1,143,833 ) Forfeited 157,261 (157,261 ) Returned to Plan 456,646 — Balances, June 30, 2024 1,797,839 7,589,919

Note 1 - Organization (Details

Note 1 - Organization (Details Textual) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023	Dec. 31, 2023	Feb. 01, 2023
Net Income (Loss) Attributable to Parent	$ (6,150)	$ (4,759)	$ (11,902)	$ (9,365)
Net Cash Provided by (Used in) Operating Activities			(8,002)	5,472
Proceeds from Sales-type Lease Payments, Financing Activities			0	$ 12,278
Cash and Cash Equivalents, at Carrying Value	7,833		7,833		$ 16,522
Liabilities, Current	7,854		7,854		4,613
Retained Earnings (Accumulated Deficit)	$ (235,117)		$ (235,117)		$ (223,215)
Summit Investment Services, LLC [Member] | Loan Agreement [Member] | Aqua Metals Reno, Inc [Member]
Debt Instrument, Face Amount						$ 3,000

Note 1 - Organization - Correct

Note 1 - Organization - Correction of Prior Period (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Operating cost and expense
Gain on disposal of property, plant and equipment	$ 0	$ (3)	$ 0	$ (23)
Total operating expense	6,162	4,852	11,954	9,348
Income (loss) from operations	(6,162)	(4,852)	(11,954)	(9,348)
Other income and expense
Gain on disposal of property, plant and equipment	0	(3)	0	(23)
Total other income (expense), net	$ 15	93	$ 55	(17)
Revision of Prior Period, Adjustment [Member]
Operating cost and expense
Gain on disposal of property, plant and equipment		(3)		(23)
Total operating expense		(3)		(23)
Income (loss) from operations		3		23
Other income and expense
Gain on disposal of property, plant and equipment		(3)		(23)
Total other income (expense), net		(3)		(23)
As Corrected [Member]
Operating cost and expense
Gain on disposal of property, plant and equipment		(3)		(23)
Total operating expense		4,852		9,348
Income (loss) from operations		(4,852)		(9,348)
Other income and expense
Gain on disposal of property, plant and equipment		(3)		(23)
Total other income (expense), net		93		(17)
Previously Reported [Member]
Operating cost and expense
Gain on disposal of property, plant and equipment		3		23
Total operating expense		4,855		9,371
Income (loss) from operations		(4,855)		(9,371)
Other income and expense
Gain on disposal of property, plant and equipment		3		23
Total other income (expense), net		$ 96		$ 6

Note 2 - Summary of Significa_3

Note 2 - Summary of Significant Accounting Policies (Details Textual) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended		15 Months Ended
	Jun. 30, 2024	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Dec. 31, 2023
Accounts Receivable, after Allowance for Credit Loss, Current	$ 0	$ 0		$ 0	$ 67
Trade Accounts Receivable [Member]
Accounts Receivable, after Allowance for Credit Loss, Current	0	0		0
Sale of Inventory [Member]
Revenue from Contract with Customer, Excluding Assessed Tax	$ 0	$ 0	$ 0	$ 0

Note 2 - Summary of Significa_4

Note 2 - Summary of Significant Accounting Policies - Antidilutive Securities Excluded From Computation of Earnings Per Share (Details) - shares		3 Months Ended		6 Months Ended
		Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Total potential dilutive securities (in shares)	[1]	20,041,269	6,605,262	14,434,743	6,481,403
Restricted Stock Units (RSUs) [Member]
Total potential dilutive securities (in shares)		8,443,517	6,181,141	8,350,321	5,770,715
Share-Based Payment Arrangement, Option [Member]
Total potential dilutive securities (in shares)		0	417,749	0	704,316
Warrant [Member]
Total potential dilutive securities (in shares)		11,597,752	6,372	6,084,422	6,372
[1]Securities are presented on a weighted average outstanding calculation as required if the securities were dilutive.

Note 3 - Revenue Recognition (D

Note 3 - Revenue Recognition (Details Textual)	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Percentage of Revenue From Products Transferred at Point in Time	100%	100%	100%	100%

Note 4 - Note Receivable (Detai

Note 4 - Note Receivable (Details Textual) - LiNiCo [Member] - USD ($)	12 Months Ended
	Dec. 31, 2023	Jun. 30, 2024
Investment Owned, Balance, Shares (in shares)	2,000,000
Equity Securities without Readily Determinable Fair Value, Impairment Loss, Annual Amount	$ 1,400,000
Receivable, Investment, Sale	$ 600,000	$ 400,000

Note 5 - Inventory (Details Tex

Note 5 - Inventory (Details Textual) - USD ($)	3 Months Ended	6 Months Ended
	Jun. 30, 2024	Jun. 30, 2024	Jun. 30, 2023
Inventory Write-down	$ 240,000	$ 240,000	$ 0

Note 5 - Inventory - Inventory

Note 5 - Inventory - Inventory (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Work in process	$ 157	$ 135
Raw materials	751	794
Total inventory	$ 908	$ 929

Note 6 - Property and Equipme_3

Note 6 - Property and Equipment, Net (Details Textual) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Depreciation	$ 235,000	$ 225,000	$ 453,000	$ 337,000

Note 6 - Property and Equipme_4

Note 6 - Property and Equipment, Net - Property and Equipment, Net (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Property and equipment, gross	$ 19,091	$ 11,976
Less: accumulated depreciation	(2,082)	(1,629)
Total property, plant and equipment, net	17,009	10,347
Operational Equipment [Member]
Property and equipment, gross	$ 3,581	3,581
Operational Equipment [Member] | Minimum [Member]
Property and equipment, net, useful life (Year)	3 years
Operational Equipment [Member] | Maximum [Member]
Property and equipment, net, useful life (Year)	10 years
Laboratory Equipment [Member]
Property and equipment, net, useful life (Year)	5 years
Property and equipment, gross	$ 1,144	817
Computer Equipment [Member]
Property and equipment, net, useful life (Year)	3 years
Property and equipment, gross	$ 111	89
Office Furniture and Equipment [Member]
Property and equipment, net, useful life (Year)	3 years
Property and equipment, gross	$ 90	90
Leasehold Improvements [Member]
Property and equipment, net, useful life (Year)	2 years 6 months
Property and equipment, gross	$ 80	80
Land [Member]
Property and equipment, gross	$ 1,141	1,141
Building [Member]
Property and equipment, net, useful life (Year)	39 years
Property and equipment, gross	$ 3,131	3,131
Construction in Progress [Member]
Property and equipment, gross	$ 9,813	$ 3,047

Note 7 - Other Assets - Other A

Note 7 - Other Assets - Other Assets (Details) - USD ($) $ in Thousands		Jun. 30, 2024	Dec. 31, 2023
Equipment deposits (1)	[1]	$ 6,466	$ 4,291
Nevada facilities Right of Use Assets (2)	[2]	657	222
Other assets		20	160
Total other assets, non-current		$ 7,143	$ 4,673
[1]Deposits for equipment to be acquired and utilized at the Company's Phase One build-out of our recycling campus at Tahoe-Reno Industrial Center (TRIC).[2]See Footnote 9.

Note 8 - Accrued Expenses - Acc

Note 8 - Accrued Expenses - Accrued Expenses (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Property, plant and equipment related	$ 1,207	$ 1,857
Payroll related	1,527	506
Professional services	105	26
Other	69	78
Total accrued expenses	$ 2,908	$ 2,467

Note 9 - Leases (Details Textua

Note 9 - Leases (Details Textual) - USD ($)			6 Months Ended
	Jun. 09, 2024	Mar. 14, 2024	Jun. 30, 2024	Jun. 30, 2023
Operating Lease, Right-of-Use Asset, Increase/Decrease			$ 517,000
Real Estate Lease One [Member]
Lessee, Operating Lease, Term of Contract (Month)			36 months
Real Estate Lease Two [Member]
Lessee, Operating Lease, Term of Contract (Month)			37 months
Headquarters Lease [Member]
Incremental Borrowing Rate		9.61%
Operating Lease, Right-of-Use Asset, Increase/Decrease		$ 170,000
Increase (Decrease) in Operating Lease Liability		$ 166,000
Innovation Center [Member]
Incremental Borrowing Rate	9.52%
Operating Lease, Right-of-Use Asset, Increase/Decrease	$ 347,000
Increase (Decrease) in Operating Lease Liability	$ 324,000

Note 9 - Leases - Right-of-Use

Note 9 - Leases - Right-of-Use Assets and Related Lease Liabilities (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Cash paid for operating lease liabilities	$ 68	$ 66	$ 136	$ 133
Operating lease cost	71	65	137	131
Cash paid for finance lease liabilities	25	15	39	17
Interest expense	$ 3	$ 2	$ 4	$ 2
Weighted-average remaining lease term (years) - operating leases (Year)	2 years 7 months 6 days	1 year 4 months 24 days	2 years 7 months 6 days	1 year 4 months 24 days
Weighted-average discount rate - operating leases	10.48%	6.16%	10.48%	6.16%
Weighted-average remaining lease term (years) - finance leases (Year)	2 years 6 months	9 months 18 days	2 years 6 months	9 months 18 days
Weighted-average discount rate - finance leases	5.12%	7.48%	5.12%	7.48%
Operating Lease, Right-of-Use Asset, Increase/Decrease			$ 517

Note 9 - Leases - Maturities of

Note 9 - Leases - Maturities of Lease Liabilities (Details) $ in Thousands	Jun. 30, 2024 USD ($)
2024, operating lease	$ 140
2024, finance lease	42
2025, operating lease	291
2025, finance lease	47
2026, operating lease	182
2026, finance lease	47
2027, operating lease	149
2027, finance lease	107
Less imputed interest, operating lease	(99)
Less imputed interest, finance lease	(23)
Total lease liabilities, operating lease	661
Finance Lease, Liability	220
Current lease liabilities, operating lease	231
Current lease liabilities, finance lease	57
Non-current lease liabilities, operating lease	430
Non-current lease liabilities, finance lease	$ 163

Note 10 - Note Payable (Details

Note 10 - Note Payable (Details Textual) - Loan Agreement [Member] - Summit Investment Services, LLC [Member] - Aqua Metals Reno, Inc [Member]	Feb. 01, 2023 USD ($)
Debt Instrument, Face Amount	$ 3,000,000
Debt Instrument, Interest Rate, Stated Percentage	9.50%
Debt Instrument Term, Interest Only Payments (Year)	24 years
Debt Instrument, Guaranteed Minimum Interest	$ 213,750

Note 10 - Note Payable - Schedu

Note 10 - Note Payable - Schedule of Notes Payable (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Note payable, current portion	$ 2,979	$ 35
Less issuance costs	(21)	0
Note payable, noncurrent	0	2,923
Less issuance costs	0	(77)
Summit Investment Services, LLC [Member]
Note payable, current portion	3,000	35
Note payable, noncurrent	$ 0	$ 3,000

Note 11 - Stockholders' Equit_2

Note 11 - Stockholders' Equity (Details Textual)		3 Months Ended		6 Months Ended		12 Months Ended
	May 01, 2024 USD ($) $ / shares shares	Jun. 30, 2024 USD ($) shares	Mar. 31, 2024 USD ($) shares	Jun. 30, 2024 USD ($) shares	Jun. 30, 2023 USD ($)	Dec. 31, 2019 shares	Dec. 31, 2023 shares
Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation (in shares)				456,646
Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation | $				$ 360,000
Stock Issued During Period, Shares, Employee Stock Purchase Plans (in shares)				68,882
Proceeds from Issuance of Common Stock | $				$ 2,542,000	$ 2,784,000
Proceeds from Issuance Or Sale Of Equity, Net | $				$ 7,306,000	$ 0
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)		1,797,839		1,797,839			1,420,454
The 2014 Stock Incentive Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)			635,215
The 2019 Stock Incentive Plan [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares)		1,162,624		1,162,624
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares)						18,500,000
The 2019 Stock Incentive Plan [Member] | Maximum [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period (Year)						10 years
May 2024 Public Offering Warrants [Member]
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right (in shares)	1
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares	$ 0.01
Warrants and Rights Outstanding | $	$ 3,100,000
May 2024 Warrants [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares	$ 0.39
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)	20,125,000
Proceeds from Issuance of Warrants | $	$ 3,000,000
Warrants and Rights Outstanding, Term (Year)	5 years
May 2024 Warrants [Member] | Underwriter [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares	$ 0.4875
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)	782,500
Sale of Stock, Warrants, Commission Percent	2%
Proceeds from Issuance of Warrants | $	$ 100,000
Warrants and Rights Outstanding, Term (Year)	5 years
ATM [Member]
Stock Issued During Period, Shares, New Issues (in shares)				5,039,383
Proceeds from Issuance of Common Stock | $				$ 2,500,000
May 2024 Public Offering [Member]
Stock Issued During Period, Shares, New Issues (in shares)	20,125,000
Shares Issued, Price Per Share (in dollars per share) | $ / shares	$ 0.39
Proceeds from Issuance or Sale of Equity | $	$ 7,300,000
Proceeds from Issuance Or Sale Of Equity, Net | $	$ 4,200,000
Restricted Stock Units (RSUs) [Member]
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares)		125,000	111,522
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Fair Value | $		$ 40,000	$ 60,000
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period, Number of Installments		3	3
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year)		3 years	3 years
Management and Employees [Member]
Stock Issued During Period, Shares, Restricted Stock Award, Gross (in shares)				1,064,286
Management and Employees [Member] | Reissued Treasury Stock [Member]
Stock Issued During Period, Shares, Restricted Stock Award, Gross (in shares)				428,566
Board Members [Member]
Stock Issued During Period, Shares, Restricted Stock Award, Gross (in shares)				79,547

Note 11 - Stockholders' Equit_3

Note 11 - Stockholders' Equity - Stock-based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Stock-based compensation expense	$ 751	$ 599	$ 1,525	$ 1,286
Cost of Sales [Member]
Stock-based compensation expense	99	18	185	47
Research and Development Expense [Member]
Stock-based compensation expense	16	22	36	40
General and Administrative Expense [Member]
Stock-based compensation expense	$ 636	$ 559	$ 1,304	$ 1,199

Note 11 - Stockholders' Equit_4

Note 11 - Stockholders' Equity - Stock-based Compensation Plan Activity (Details)	6 Months Ended
	Jun. 30, 2024 shares
Number of shares available for grant (in shares)	1,420,454
Balances, RSUs (in shares)	8,654,491
Granted, available for grant (in shares)	(236,522)
Granted, RSUs (in shares)	236,522
Exercised/ Released, RSUs (in shares)	(1,143,833)
Forfeited, available for grant (in shares)	157,261
Forfeited, RSUs (in shares)	(157,261)
Returned to Plan, available for grant (in shares)	456,646
Returned to Plan, RSUs (in shares)	0
Number of shares available for grant (in shares)	1,797,839
Balances, RSUs (in shares)	7,589,919