Note 4 - Shareholders' Equity (Details Textual) | | | | 1 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended | | | | |
May 16, 2022 shares | Feb. 15, 2022 USD ($) $ / shares shares | Jul. 14, 2021 $ / shares shares | May 31, 2023 shares | Jun. 30, 2023 USD ($) $ / shares shares | Jun. 30, 2022 USD ($) | Jun. 30, 2023 USD ($) $ / shares shares | Jun. 30, 2022 USD ($) | Dec. 31, 2022 USD ($) shares | Jun. 30, 2023 $ / shares | Dec. 31, 2022 $ / shares shares | Apr. 18, 2018 $ / shares | Mar. 23, 2018 $ / shares |
Share-Based Payment Arrangement, Shares Withheld for Tax Withholding Obligation (in shares) | | | | | | | | | 480,000 | | | | | | | |
Share Price (in dollars per share) | $ / shares | | | | | | $ 0.26 | | | $ 0.26 | | | | | | $ 0.30 | $ 0.36 |
Share-Based Payment Arrangement, Expense | $ | | | | | | $ 274,000 | | $ 117,000 | $ 540,000 | | $ 386,000 | | | | | |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value | $ | | | | | | 74,000 | | | 74,000 | | | | | | | |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value | $ | | | | | | $ 40,000 | | | $ 40,000 | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Period Increase (Decrease), Total (in shares) | | | | | | | | | | | | 0 | | | | |
Class of Warrant or Right, Outstanding (in shares) | | | | | | 27,721,945 | | | 27,721,945 | | | | | | | |
Jones Special Warrant [Member] | | | | | | | | | | | | | | | | |
Proceeds from a Subscription Receipt, Net | $ | | | | | | | | | | | | $ 8,000,000 | | | | |
Subscription Receipt, Conversion into Warrants (in shares) | | | | | | | | | | | | 16,000,000 | | | | |
Class of Warrant or Right, Outstanding (in shares) | [1] | | | | | 26,047,137 | | | 26,047,137 | | | | | | | |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares | | | | $ 0.625 | | $ 0.63 | | | $ 0.63 | | | | | | | |
Pinestar Warrants [Member] | | | | | | | | | | | | | | | | |
Class of Warrant or Right, Outstanding (in shares) | | | | | | 1,674,808 | [2] | | 1,674,808 | [2] | | | | 1,674,808 | | |
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share) | $ / shares | | | | | | | | | | | | | $ 0.06 | $ 0.06 | | |
Conversion of 2021 Unsecured Convertible Debenture into Jones Special Warrants [Member] | | | | | | | | | | | | | | | | |
Debt Conversion, Converted Instrument, Warrants or Options Issued (in shares) | | | | 4,025,035 | | | | | | | | | | | | |
Conversion of 2022 Unsecured Convertible Debenture into Jones Special Warrants [Member] | | | | | | | | | | | | | | | | |
Debt Conversion, Converted Instrument, Warrants or Options Issued (in shares) | | | | | | | | | | | | 6,022,102 | | | | |
Pinestar Subscription Receipt Offering [Member] | | | | | | | | | | | | | | | | |
Stock Issued During Period, Shares, New Issues (in shares) | | | 20,000,048 | | | | | | | | | | | | | |
Proceeds from Issuance or Sale of Equity, Total | $ | | | $ 7,152,000 | | | | | | | | | | | | | |
Shares Issued, Price Per Share (in dollars per share) | $ / shares | | | $ 0.50 | | | | | | | | | | | | | |
Director [Member] | | | | | | | | | | | | | | | | |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year) | | | | | 3 years | | | | | | | | | | | |
Director [Member] | Share-Based Payment Arrangement, Nonemployee [Member] | | | | | | | | | | | | | | | | |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Net of Forfeitures (in shares) | | | | | 300,000 | | | | | | | | | | | |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Additional Granted Annual Compensation (in shares) | | | | | 150,000 | | | | | | | | | | | |
Two Board of Director's Members [Member] | Pinestar Warrants [Member] | | | | | | | | | | | | | | | | |
Class of Warrant or Right, Warrants Issued During Period (in shares) | | | | | | | | | | | | 600,000 | | | | |
Share-Based Payment Arrangement, Option [Member] | | | | | | | | | | | | | | | | |
Share-Based Payment Arrangement, Expense | $ | | | | | | $ 118,000 | | 23,000 | $ 331,000 | | 292,000 | | | | | |
Stock Options and Non-vested Stock [Member] | | | | | | | | | | | | | | | | |
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount | $ | | | | | | 618,000 | | | $ 618,000 | | | | | | | |
Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition (Year) | | | | | | | | | 2 years 6 months | | | | | | | |
Common Stock Award [Member] | | | | | | | | | | | | | | | | |
Share-Based Payment Arrangement, Expense | $ | | | | | | $ 0 | | $ 0 | $ 17,000 | | $ 0 | | | | | |
The 2022 Incentive Plan [Member] | | | | | | | | | | | | | | | | |
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares) | | 10,000,000 | | | | | | | | | | | | | | |
The 2022 Incentive Plan [Member] | Common Stock Award [Member] | | | | | | | | | | | | | | | | |
Shares Issued, Shares, Share-Based Payment Arrangement, before Forfeiture (in shares) | | | | | | | | | 75,000 | | | | | | | |
Share-Based Payment Arrangement, Expense | $ | | | | | | | | | $ 17,000 | | | | | | | |
The 2011 Incentive Plan [Member] | | | | | | | | | | | | | | | | |
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares) | | 11,936,074 | | | | | | | | | | | | | | |
Common Stock, Capital Shares Reserved for Future Issuance (in shares) | | 1,936,074 | | | | | | | | | | | | | | |
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Available for Grant (in shares) | | | | | | 762,074 | | | 762,074 | | | | | | | |
The 2011 Incentive Plan [Member] | Share-Based Payment Arrangement, Option [Member] | | | | | | | | | | | | | | | | |
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period (Year) | | 10 years | | | | | | | | | | | | | | |
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[1]Upon conversion of the beforementioned 2021 Unsecured Convertible Debenture, 4,025,035 Jones Special Warrants were issued. In connection with the beforementioned Plan of Arrangement, Pinestar completed an offering for Subscription Receipts for aggregate gross proceeds of $8,000,000. Pursuant to the Plan of Arrangement, each Subscription Receipt automatically converted into 16,000,000 Jones Special Warrants. Lastly, Upon conversion of the beforementioned 2022 Unsecured Convertible Debenture, 6,022,102 Jones Special Warrants were issued.[2]In connection with the beforementioned Plan of Arrangement, Pinestar, Pinestar had outstanding 16,800,000 existing common share purchase warrants and as a result of the consolidation, and the number of Pinestar Shares issuable pursuant to the Pinestar warrants as adjusted in accordance with their terms to account for the consolidation (10.031 pre consolidation shares to 1 post consolidation), resulting in an aggregate of approximately 1,674,808 post-consolidated Pinestar warrants, subject to rounding, each exercisable for the purchase of one post-consolidation Pinestar Share at a price of $0.0602 CAD per share. 600,000 warrants were transferred to two Board of Director members for 2022 services, thus resulting in $76,000 in stock compensation expense incurred during the year ended December 31, 2022 | |