$XPL
Solitario Resources Corp Stock $xpl

$xpl Overview Financials Valuation SEC Filings Company Website

2021 Form 10-K Financial Statement

#000165495422004166 Filed on March 30, 2022

Income Statement

Concept	2021	2020 Q4	2020
Revenue	$0.00	$0.00	$0.00
YoY Change			-100.0%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin	$952.0K	$228.0K	$1.044M
YoY Change	-8.81%	-24.75%	-23.68%
% of Gross Profit
Research & Development	$1.198M		$413.0K
YoY Change	190.07%		-77.14%
% of Gross Profit
Depreciation & Amortization	$27.00K	$6.000K	$25.00K
YoY Change	8.0%	0.0%	0.0%
% of Gross Profit
Operating Expenses	$2.194M	$378.0K	$1.482M
YoY Change	48.04%	-13.3%	-53.69%
Operating Profit
YoY Change
Interest Expense	-$81.00K	-$210.0K	$445.0K
YoY Change	-118.2%	-400.0%	-189.54%
% of Operating Profit
Other Income/Expense, Net	-$173.0K	$60.00K	$549.0K
YoY Change	-131.51%
Pretax Income	$136.0K	-$534.0K	$79.00K
YoY Change	72.15%	45.9%	-102.4%
Income Tax	$0.00		$0.00
% Of Pretax Income	0.0%		0.0%
Net Earnings	-$2.367M	-$534.0K	-$939.0K
YoY Change	152.08%	45.9%	-71.45%
Net Earnings / Revenue
Basic Earnings Per Share
Diluted Earnings Per Share	-$40.32K	-$9.190K	-$16.16K
COMMON SHARES
Basic Shares Outstanding
Diluted Shares Outstanding

Balance Sheet

Concept	2021	2020 Q4	2020
SHORT-TERM ASSETS
Cash & Short-Term Investments	$6.856M	$2.225M	$8.023M
YoY Change	-14.55%	-73.64%	-4.96%
Cash & Equivalents	$462.0K	$605.0K	$605.0K
Short-Term Investments	$6.394M	$1.620M	$7.418M
Other Short-Term Assets	$303.0K	$26.00K	$26.00K
YoY Change	1065.38%	-43.48%	-43.48%
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets	$7.159M	$8.049M	$8.049M
YoY Change	-11.06%	-8.07%	-8.07%
LONG-TERM ASSETS
Property, Plant & Equipment	$16.45M	$15.70M	$15.70M
YoY Change	4.8%	-0.33%	-0.33%
Goodwill
YoY Change
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$7.000K	$124.0K	$53.00K
YoY Change	-86.79%	396.0%	112.0%
Total Long-Term Assets	$16.46M	$15.75M	$15.75M
YoY Change	4.49%	-0.15%	-0.15%
TOTAL ASSETS
Total Short-Term Assets	$7.159M	$8.049M	$8.049M
Total Long-Term Assets	$16.46M	$15.75M	$15.75M
Total Assets	$23.62M	$23.80M	$23.80M
YoY Change	-0.76%	-2.98%	-2.98%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$239.0K	$157.0K	$157.0K
YoY Change	52.23%	-31.14%	-31.14%
Accrued Expenses	$37.00K	$7.000K	$7.000K
YoY Change	428.57%	-82.93%	-82.93%
Deferred Revenue
YoY Change
Short-Term Debt	$0.00	$10.00K	$10.00K
YoY Change	-100.0%
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$276.0K	$174.0K	$174.0K
YoY Change	58.62%	-35.32%	-35.32%
LONG-TERM LIABILITIES
Long-Term Debt	$0.00	$0.00	$0.00
YoY Change
Other Long-Term Liabilities	$160.0K	$125.0K	$125.0K
YoY Change	28.0%	-5.3%	-5.3%
Total Long-Term Liabilities	$160.0K	$125.0K	$125.0K
YoY Change	28.0%	-5.3%	-5.3%
TOTAL LIABILITIES
Total Short-Term Liabilities	$276.0K	$174.0K	$174.0K
Total Long-Term Liabilities	$160.0K	$125.0K	$125.0K
Total Liabilities	$436.0K	$299.0K	$299.0K
YoY Change	45.82%	-25.44%	-25.44%
SHAREHOLDERS EQUITY
Retained Earnings		-$47.59M
YoY Change
Common Stock		$581.0K
YoY Change
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$23.18M	$23.50M	$23.50M
YoY Change
Total Liabilities & Shareholders Equity	$23.62M	$23.80M	$23.80M
YoY Change	-0.76%	-2.98%	-2.98%

Cashflow Statement

Concept	2021	2020 Q4	2020
OPERATING ACTIVITIES
Net Income	-$2.367M	-$534.0K	-$939.0K
YoY Change	152.08%	45.9%	-71.45%
Depreciation, Depletion And Amortization	$27.00K	$6.000K	$25.00K
YoY Change	8.0%	0.0%	0.0%
Cash From Operating Activities	-$2.157M	-$294.0K	-$1.010M
YoY Change	113.56%	15.75%	-61.73%
INVESTING ACTIVITIES
Capital Expenditures	-$674.0K	$0.00	$0.00
YoY Change		-100.0%	-100.0%
Acquisitions
YoY Change
Other Investing Activities	$764.0K	$486.0K	$976.0K
YoY Change	-21.72%	-1.42%	-68.66%
Cash From Investing Activities	$90.00K	$486.0K	$976.0K
YoY Change	-90.78%	-1.62%	-68.61%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net	-$1.841M		$5.000K
YoY Change	-36920.0%		-138.46%
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	$1.924M	0.000	$65.00K
YoY Change	2860.0%	-100.0%	-600.0%
NET CHANGE
Cash From Operating Activities	-$2.157M	-294.0K	-$1.010M
Cash From Investing Activities	$90.00K	486.0K	$976.0K
Cash From Financing Activities	$1.924M	0.000	$65.00K
Net Change In Cash	-$143.0K	192.0K	$31.00K
YoY Change	-561.29%	-19.67%	-93.22%
FREE CASH FLOW
Cash From Operating Activities	-$2.157M	-$294.0K	-$1.010M
Capital Expenditures	-$674.0K	$0.00	$0.00
Free Cash Flow	-$1.483M	-$294.0K	-$1.010M
YoY Change	46.83%	15.29%	-61.66%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2021	dei	Auditor Location AuditorLocation	Denver, Colorado
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	462000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	605000	USD
CY2021Q4	us-gaap	Short Term Investments ShortTermInvestments	5087000	USD
CY2020Q4	us-gaap	Short Term Investments ShortTermInvestments	5798000	USD
CY2021Q4	us-gaap	Available For Sale Securities Current AvailableForSaleSecuritiesCurrent	1307000	USD
CY2020Q4	us-gaap	Available For Sale Securities Current AvailableForSaleSecuritiesCurrent	1620000	USD
CY2021Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	303000	USD
CY2020Q4	us-gaap	Prepaid Expense And Other Assets Current PrepaidExpenseAndOtherAssetsCurrent	26000	USD
CY2021Q4	us-gaap	Assets Current AssetsCurrent	7159000	USD
CY2020Q4	us-gaap	Assets Current AssetsCurrent	8049000	USD
CY2021Q4	us-gaap	Mineral Properties Net MineralPropertiesNet	16306000	USD
CY2020Q4	us-gaap	Mineral Properties Net MineralPropertiesNet	15628000	USD
CY2021Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	154000	USD
CY2020Q4	us-gaap	Other Assets Noncurrent OtherAssetsNoncurrent	124000	USD
CY2021Q4	us-gaap	Assets Assets	23619000	USD
CY2020Q4	us-gaap	Assets Assets	23801000	USD
CY2021Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	239000	USD
CY2020Q4	us-gaap	Accounts Payable Current AccountsPayableCurrent	157000	USD
CY2021Q4	us-gaap	Other Loans Payable Current OtherLoansPayableCurrent	0	USD
CY2020Q4	us-gaap	Other Loans Payable Current OtherLoansPayableCurrent	10000	USD
CY2021Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	37000	USD
CY2020Q4	us-gaap	Operating Lease Liability Current OperatingLeaseLiabilityCurrent	7000	USD
CY2021Q4	us-gaap	Liabilities Current LiabilitiesCurrent	276000	USD
CY2020Q4	us-gaap	Liabilities Current LiabilitiesCurrent	174000	USD
CY2021Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	125000	USD
CY2020Q4	us-gaap	Asset Retirement Obligations Noncurrent AssetRetirementObligationsNoncurrent	125000	USD
CY2021Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	35000	USD
CY2020Q4	us-gaap	Operating Lease Liability Noncurrent OperatingLeaseLiabilityNoncurrent	0	USD
CY2021Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	160000	USD
CY2020	us-gaap	Gain Loss On Derivative Instruments Held For Trading Purposes Net GainLossOnDerivativeInstrumentsHeldForTradingPurposesNet	-92000	USD
CY2020	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	60000	USD
CY2020Q4	us-gaap	Liabilities Noncurrent LiabilitiesNoncurrent	125000	USD
CY2021Q4	us-gaap	Preferred Stock Par Or Stated Value Per Share PreferredStockParOrStatedValuePerShare	0.01
CY2021Q4	us-gaap	Preferred Stock Shares Authorized PreferredStockSharesAuthorized	10000000	shares
CY2021Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2020Q4	us-gaap	Preferred Stock Value PreferredStockValue	0	USD
CY2021Q4	us-gaap	Common Stock Par Or Stated Value Per Share CommonStockParOrStatedValuePerShare	0.01
CY2021Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	100000000	shares
CY2021Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	62036399	shares
CY2020Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	58108366	shares
CY2021Q4	us-gaap	Common Stock Value CommonStockValue	620000	USD
CY2020Q4	us-gaap	Common Stock Value CommonStockValue	581000	USD
CY2021Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	72523000	USD
CY2020Q4	us-gaap	Additional Paid In Capital AdditionalPaidInCapital	70514000	USD
CY2021Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-49960000	USD
CY2020Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	-47593000	USD
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	23183000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	23502000	USD
CY2021Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	23619000	USD
CY2020Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	23801000	USD
CY2021	sir	Exploration Expense Mineral Properties ExplorationExpenseMineralProperties	1198000	USD
CY2020	sir	Exploration Expense Mineral Properties ExplorationExpenseMineralProperties	413000	USD
CY2021	us-gaap	Asset Impairment Charges AssetImpairmentCharges	17000	USD
CY2020	us-gaap	Asset Impairment Charges AssetImpairmentCharges	6000	USD
CY2021	us-gaap	Operating Expenses OperatingExpenses	2194000	USD
CY2021	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	123000	USD
CY2020	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	184000	USD
CY2021	us-gaap	Other Operating Income OtherOperatingIncome	10000	USD
CY2020	us-gaap	Other Operating Income OtherOperatingIncome	104000	USD
CY2021	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	-38000	USD
CY2020	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	-92000	USD
CY2021	us-gaap	Marketable Securities Realized Gain Loss MarketableSecuritiesRealizedGainLoss	-248000	USD
CY2020	us-gaap	Marketable Securities Realized Gain Loss MarketableSecuritiesRealizedGainLoss	50000	USD
CY2021	sir	Unrealized Gainloss On Short Term Investments UnrealizedGainlossOnShortTermInvestments	-102000	USD
CY2020	sir	Unrealized Gainloss On Short Term Investments UnrealizedGainlossOnShortTermInvestments	-57000	USD
CY2021	us-gaap	Marketable Securities Unrealized Gain Loss MarketableSecuritiesUnrealizedGainLoss	82000	USD
CY2020	us-gaap	Marketable Securities Unrealized Gain Loss MarketableSecuritiesUnrealizedGainLoss	360000	USD
CY2021	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	-173000	USD
CY2020	us-gaap	Nonoperating Income Expense NonoperatingIncomeExpense	549000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-2367000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-939000	USD
CY2021	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.04
CY2020	us-gaap	Earnings Per Share Basic And Diluted EarningsPerShareBasicAndDiluted	-0.02
CY2021	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	58709	shares
CY2020	us-gaap	Weighted Average Number Of Share Outstanding Basic And Diluted WeightedAverageNumberOfShareOutstandingBasicAndDiluted	58116	shares
CY2019Q4	us-gaap	Stockholders Equity StockholdersEquity	24131000	USD
CY2020	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Stock Options Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition	315000	USD
CY2020	us-gaap	Stock Repurchased And Retired During Period Value StockRepurchasedAndRetiredDuringPeriodValue	-5000	USD
CY2020	us-gaap	Net Income Loss NetIncomeLoss	-939000	USD
CY2020Q4	us-gaap	Stockholders Equity StockholdersEquity	23502000	USD
CY2021	us-gaap	Adjustments To Additional Paid In Capital Share Based Compensation Stock Options Requisite Service Period Recognition AdjustmentsToAdditionalPaidInCapitalShareBasedCompensationStockOptionsRequisiteServicePeriodRecognition	124000	USD
CY2021	sir	Issuance Of Sharesoption Exercises Amount IssuanceOfSharesoptionExercisesAmount	83000	USD
CY2021	sir	Accrued Mineral Property Acquisition Costs Included In Accounts Payable AccruedMineralPropertyAcquisitionCostsIncludedInAccountsPayable	60000	USD
CY2020	sir	Accrued Mineral Property Acquisition Costs Included In Accounts Payable AccruedMineralPropertyAcquisitionCostsIncludedInAccountsPayable	0	USD
CY2021	sir	Acquisition Of Right To Use Asset AcquisitionOfRightToUseAsset	99000	USD
CY2020	sir	Acquisition Of Right To Use Asset AcquisitionOfRightToUseAsset	0	USD
CY2021	sir	Conversion Of Silverstream Note To Marketable Equity Securities ConversionOfSilverstreamNoteToMarketableEquitySecurities	0	USD
CY2020	sir	Conversion Of Silverstream Note To Marketable Equity Securities ConversionOfSilverstreamNoteToMarketableEquitySecurities	294000	USD
CY2021	sir	Acquisition Of Gold Coin Property Included In Accounts Payable AcquisitionOfGoldCoinPropertyIncludedInAccountsPayable	0	USD
CY2020	sir	Acquisition Of Gold Coin Property Included In Accounts Payable AcquisitionOfGoldCoinPropertyIncludedInAccountsPayable	17000	USD
CY2021	sir	Issuance Of Shares Atm Net Amount IssuanceOfSharesAtmNetAmount	299000	USD
CY2021	sir	Issuance Of Shares Private Placement Amount IssuanceOfSharesPrivatePlacementAmount	1542000	USD
CY2021	us-gaap	Net Income Loss NetIncomeLoss	-2367000	USD
CY2021Q4	us-gaap	Stockholders Equity StockholdersEquity	23183000	USD
CY2021	us-gaap	Profit Loss ProfitLoss	2367000	USD
CY2020	us-gaap	Profit Loss ProfitLoss	939000	USD
CY2021	sir	Unrealized Gain On Marketable Equity Securities UnrealizedGainOnMarketableEquitySecurities	82000	USD
CY2020	sir	Unrealized Gain On Marketable Equity Securities UnrealizedGainOnMarketableEquitySecurities	360000	USD
CY2021	sir	Unrealized Loss Gain On Short Term Investments UnrealizedLossGainOnShortTermInvestments	-102000	USD
CY2020	sir	Unrealized Loss Gain On Short Term Investments UnrealizedLossGainOnShortTermInvestments	-57000	USD
CY2021	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	-248000	USD
CY2020	us-gaap	Marketable Securities Gain Loss MarketableSecuritiesGainLoss	50000	USD
CY2021	us-gaap	Gain Loss On Derivative Instruments Held For Trading Purposes Net GainLossOnDerivativeInstrumentsHeldForTradingPurposesNet	-38000	USD
CY2021	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	10000	USD
CY2021	us-gaap	Other Noncash Income OtherNoncashIncome	0	USD
CY2021	sir	Mineral Property Impairment MineralPropertyImpairment	17000	USD
CY2020	sir	Mineral Property Impairment MineralPropertyImpairment	6000	USD
CY2021	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	124000	USD
CY2020	us-gaap	Stock Option Plan Expense StockOptionPlanExpense	315000	USD
CY2021	us-gaap	Depreciation And Amortization DepreciationAndAmortization	27000	USD
CY2020	us-gaap	Depreciation And Amortization DepreciationAndAmortization	25000	USD
CY2021	us-gaap	Amortization Of Leased Asset AmortizationOfLeasedAsset	40000	USD
CY2020	us-gaap	Amortization Of Leased Asset AmortizationOfLeasedAsset	38000	USD
CY2021	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	277000	USD
CY2020	us-gaap	Increase Decrease In Prepaid Expense IncreaseDecreaseInPrepaidExpense	-38000	USD
CY2021	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	17000	USD
CY2020	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	128000	USD
CY2021	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-2157000	USD
CY2020	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-1010000	USD
CY2021	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	609000	USD
CY2020	us-gaap	Proceeds From Sale Of Short Term Investments ProceedsFromSaleOfShortTermInvestments	974000	USD
CY2021	sir	Additions To Mineral Property AdditionsToMineralProperty	635000	USD
CY2021	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	147000	USD
CY2020	us-gaap	Proceeds From Sale And Maturity Of Marketable Securities ProceedsFromSaleAndMaturityOfMarketableSecurities	123000	USD
CY2021	sir	Sale Purchase Of Derivative Instruments Net SalePurchaseOfDerivativeInstrumentsNet	8000	USD
CY2020	sir	Sale Purchase Of Derivative Instruments Net SalePurchaseOfDerivativeInstrumentsNet	-121000	USD
CY2021	us-gaap	Payments For Purchase Of Other Assets1 PaymentsForPurchaseOfOtherAssets1	39000	USD
CY2020	us-gaap	Payments For Purchase Of Other Assets1 PaymentsForPurchaseOfOtherAssets1	0	USD
CY2021	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	90000	USD
CY2020	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	976000	USD
CY2021	us-gaap	Proceeds From Issuance Of Common Stock ProceedsFromIssuanceOfCommonStock	1841000	USD
CY2021	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	83000	USD
CY2021	sir	Proceed Paycheck Protection Loan ProceedPaycheckProtectionLoan	0	USD
CY2020	sir	Proceed Paycheck Protection Loan ProceedPaycheckProtectionLoan	70000	USD
CY2021	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	0	USD
CY2020	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	5000	USD
CY2021	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	1924000	USD
CY2020	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	65000	USD
CY2021	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	-143000	USD
CY2020	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	31000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	605000	USD
CY2019Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	574000	USD
CY2021Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	462000	USD
CY2020Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	605000	USD
CY2021	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	106000	USD
CY2020	us-gaap	Other General And Administrative Expense OtherGeneralAndAdministrativeExpense	87000	USD
CY2021Q4	us-gaap	Equity Method Investment Ownership Percentage EquityMethodInvestmentOwnershipPercentage	0.50	pure
CY2021	sir	Capitalized Of Initial Acquisition Costs On The Golden Crest Project CapitalizedOfInitialAcquisitionCostsOnTheGoldenCrestProject	695000	USD
CY2021	us-gaap	Use Of Estimates UseOfEstimates	<p style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 0.5in; text-align:justify;">The preparation of financial statements in conformity with generally accepted accounting principles requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Some of the more significant estimates included in the preparation of Solitario's financial statements pertain to: (i) the recoverability of its investment in mineral properties related to its mineral exploration properties and their future exploration potential; (ii) the fair value of stock option grants to employees; (iii) the ability of Solitario to realize its deferred tax assets; and (iv) Solitario's investment in marketable equity securities. </p><p style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;"> </p><p style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 0.5in; text-align:justify;">In performing its activities, Solitario has incurred certain costs for mineral properties. The recovery of these costs is ultimately dependent upon the sale of mineral property interests or the development of economically recoverable mineral reserves and the ability of Solitario to obtain the necessary permits and financing to successfully place the properties into production, and upon future profitable operations, none of which is assured.</p>
CY2021Q4	sir	Cash And Cash Equivalents Held In Brokerage Accounts And Foreign Banks CashAndCashEquivalentsHeldInBrokerageAccountsAndForeignBanks	451000	USD
CY2021	sir	Maturities Period Of Current Assets In United States Treasury Securities MaturitiesPeriodOfCurrentAssetsInUnitedStatesTreasurySecurities	15 days to one year
CY2021Q4	us-gaap	Us Government Securities At Carrying Value USGovernmentSecuritiesAtCarryingValue	4236000	USD
CY2020Q4	us-gaap	Us Government Securities At Carrying Value USGovernmentSecuritiesAtCarryingValue	3989000	USD
CY2021Q4	us-gaap	Certificates Of Deposit At Carrying Value CertificatesOfDepositAtCarryingValue	100000	USD
CY2020Q4	us-gaap	Certificates Of Deposit At Carrying Value CertificatesOfDepositAtCarryingValue	250000	USD
CY2021	sir	Maturities Period Of Certificates Of Deposit MaturitiesPeriodOfCertificatesOfDeposit	three months to one year
CY2021Q4	sir	Certificates Of Deposit Fair Value CertificatesOfDepositFairValue	851000	USD
CY2020Q4	sir	Certificates Of Deposit Fair Value CertificatesOfDepositFairValue	1809000	USD
CY2021	sir	Exploration Expense Mineral Properties ExplorationExpenseMineralProperties	1198000	USD
CY2021	sir	Fair Value Of Short Term Investments FairValueOfShortTermInvestments	102000	USD
CY2020	sir	Fair Value Of Short Term Investments FairValueOfShortTermInvestments	57000	USD
CY2021	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	5513000	shares
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CY2020	us-gaap	Income Tax Reconciliation Foreign Income Tax Rate Differential IncomeTaxReconciliationForeignIncomeTaxRateDifferential	-8000	USD
CY2021	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-98000	USD
CY2020	us-gaap	Income Tax Reconciliation State And Local Income Taxes IncomeTaxReconciliationStateAndLocalIncomeTaxes	-37000	USD
CY2021	sir	Income Tax Reconciliation Expiration Of Capital Loss Carryovers IncomeTaxReconciliationExpirationOfCapitalLossCarryovers	1385000	USD
CY2021	us-gaap	Concentration Risk Credit Risk ConcentrationRiskCreditRisk	<p style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 0.5in; text-align:justify;">Solitario faces risks related to health epidemics and other outbreaks of communicable diseases, which could significantly disrupt its operations and may materially and adversely affect its business and financial conditions.</p><p style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; text-align:justify;"> </p><p style="FONT-SIZE: 10pt; FONT-FAMILY: times new roman; MARGIN: 0px; TEXT-INDENT: 0.5in; text-align:justify;">Solitario’s business still could be adversely impacted by the effects of the coronavirus (“COVID-19”) or other epidemics or pandemics. Solitario has recommended all of its employees and contractors follow government guidelines for health and safety policies for employees and contractors, including encouraging tele-commuting and working from home where possible. Solitario has evaluated the effects of COVID-19 on its operations and taken pro-active steps to address the impacts on its operations, including at times reducing costs, in response to the economic uncertainty associated with potential risks from COVID-19. These prior reductions included implementing salary reductions and evaluation and reduction in certain planned 2021 exploration programs through its joint venture partners at the Florida Canyon and Lik exploration projects. Also, Solitairo has evaluated the potential impacts on its ability to access future traditional funding sources on the same or reasonably similar terms as in past periods. Solitario will continue to monitor the effects of COVID-19 on its operations, financial condition and liquidity. However, the extent to which COVID-19 impacts Solitario’s business, including our exploration and other activities and the market for its securities, will depend on future developments, which are highly uncertain and cannot be predicted at this time, and include the duration, severity and scope of any new outbreak and the actions taken to contain or treat the COVID-19 pandemic. </p>
CY2021Q4	sir	Mineral Properties MineralProperties	16306000	USD
CY2020Q4	sir	Mineral Properties MineralProperties	15628000	USD
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CY2021	us-gaap	Loss Contingency Damages Paid Value LossContingencyDamagesPaidValue	3000000	USD
CY2021	sir	Total Total	200000	USD
CY2021Q4	us-gaap	Derivative Fixed Interest Rate DerivativeFixedInterestRate	0.020	pure
CY2021Q4	sir	Reduce Return Royalty Rate ReduceReturnRoyaltyRate	0.010	pure
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CY2021	sir	Other Cost OtherCost	570000	USD
CY2019Q1	sir	Income From Sale Of Royalty IncomeFromSaleOfRoyalty	600000	CAD
CY2020	us-gaap	Royalty Expense RoyaltyExpense	250000	CAD
CY2020	us-gaap	Debt Instrument Periodic Payment Principal DebtInstrumentPeriodicPaymentPrincipal	350000	CAD
CY2020Q2	sir	Purchase Price Of Share Issued To Solitario PurchasePriceOfShareIssuedToSolitario	2.55
CY2020Q2	sir	Discount Rate DiscountRate	0.15	pure
CY2020Q2	sir	Initial Public Offering Price Per Share InitialPublicOfferingPricePerShare	3.00
CY2020	us-gaap	Interest And Other Income InterestAndOtherIncome	7000	USD
CY2021	sir	Minerals Property Impairment MineralsPropertyImpairment	17000	USD
CY2020	sir	Minerals Property Impairment MineralsPropertyImpairment	6000	USD
CY2021	us-gaap	Cost Of Other Property Operating Expense CostOfOtherPropertyOperatingExpense	1092000	USD
CY2020	us-gaap	Cost Of Other Property Operating Expense CostOfOtherPropertyOperatingExpense	326000	USD
CY2020	sir	Income Tax Reconciliation Expiration Of Capital Loss Carryovers IncomeTaxReconciliationExpirationOfCapitalLossCarryovers	1225000	USD
CY2021	us-gaap	Income Tax Expense Benefit Continuing Operations Adjustment Of Deferred Tax Asset Liability IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability	-114000	USD
CY2020	us-gaap	Income Tax Expense Benefit Continuing Operations Adjustment Of Deferred Tax Asset Liability IncomeTaxExpenseBenefitContinuingOperationsAdjustmentOfDeferredTaxAssetLiability	-23000	USD
CY2020	sir	Exploration Expense Mineral Properties ExplorationExpenseMineralProperties	413000	USD
CY2021Q4	us-gaap	Asset Retirement Obligation AssetRetirementObligation	125000	USD
CY2020	us-gaap	Debt Conversion Converted Instrument Shares Issued1 DebtConversionConvertedInstrumentSharesIssued1	137255	shares
CY2020	us-gaap	Debt Conversion Original Debt Amount1 DebtConversionOriginalDebtAmount1	294000	USD
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	sir	Vendetta Units For Aggregate Consideration VendettaUnitsForAggregateConsideration	233000	USD
	sir	Purchase Price Per Unit PurchasePricePerUnit	0.13
	sir	Purchase Of The Units Increased Of Vendetta Common Shares PurchaseOfTheUnitsIncreasedOfVendettaCommonShares	14450000	shares
CY2021	sir	Charged Loss On Derivative Instruments ChargedLossOnDerivativeInstruments	46000	USD
CY2020	sir	Charged Gain On Derivative Instruments ChargedGainOnDerivativeInstruments	29000	USD
CY2021	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-489000	USD
CY2020	us-gaap	Income Tax Reconciliation Change In Deferred Tax Assets Valuation Allowance IncomeTaxReconciliationChangeInDeferredTaxAssetsValuationAllowance	-949000	USD
CY2021Q4	us-gaap	Available For Sale Securities Current AvailableForSaleSecuritiesCurrent	1307000	USD
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	140000	shares
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CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	5513000	shares
CY2021Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	1704000	USD
CY2020Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	2099000	USD
CY2021Q4	sir	Unrealized Gain Loss On Marketable Equity Securities UnrealizedGainLossOnMarketableEquitySecurities	-397000	USD
CY2020Q4	sir	Unrealized Gain Loss On Marketable Equity Securities UnrealizedGainLossOnMarketableEquitySecurities	-479000	USD
CY2021Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	1307000	USD
CY2020Q4	us-gaap	Investments Fair Value Disclosure InvestmentsFairValueDisclosure	1620000	USD
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CY2020	sir	Cost Of Marketable Equity Securities Sold CostOfMarketableEquitySecuritiesSold	73000	USD
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CY2020	sir	Realized Gain On Marketable Equity Securities Sold RealizedGainOnMarketableEquitySecuritiesSold	50000	USD
CY2021	sir	Proceeds From The Sale Of Marketable Equity Securities Sold ProceedsFromTheSaleOfMarketableEquitySecuritiesSold	-147000	USD
CY2020	sir	Proceeds From The Sale Of Marketable Equity Securities Sold ProceedsFromTheSaleOfMarketableEquitySecuritiesSold	-123000	USD
CY2020	us-gaap	Gain Loss On Investments Excluding Other Than Temporary Impairments GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments	410000	USD
CY2021	us-gaap	Payments For Proceeds From Availableforsale Securities Shortterm PaymentsForProceedsFromAvailableforsaleSecuritiesShortterm	0	USD
CY2020	us-gaap	Payments For Proceeds From Availableforsale Securities Shortterm PaymentsForProceedsFromAvailableforsaleSecuritiesShortterm	294000	USD
CY2021	us-gaap	Marketable Securities Unrealized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesUnrealizedGainLossExcludingOtherThanTemporaryImpairments	-313000	USD
CY2020	us-gaap	Marketable Securities Unrealized Gain Loss Excluding Other Than Temporary Impairments MarketableSecuritiesUnrealizedGainLossExcludingOtherThanTemporaryImpairments	581000	USD
CY2021	us-gaap	Debt Securities Unrealized Gain Loss DebtSecuritiesUnrealizedGainLoss	82000	USD
CY2020	us-gaap	Debt Securities Unrealized Gain Loss DebtSecuritiesUnrealizedGainLoss	360000	USD
CY2021	sir	Realized Gain On Marketable Equities Securities Sold RealizedGainOnMarketableEquitiesSecuritiesSold	-248000	USD
CY2020	sir	Realized Gain On Marketable Equities Securities Sold RealizedGainOnMarketableEquitiesSecuritiesSold	50000	USD
CY2021	us-gaap	Gain Loss On Investments Excluding Other Than Temporary Impairments GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments	-166000	USD
CY2020	us-gaap	Gain Loss On Investments Excluding Other Than Temporary Impairments GainLossOnInvestmentsExcludingOtherThanTemporaryImpairments	410000	USD
CY2021	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	-194	USD
CY2020	us-gaap	Income Tax Reconciliation Income Tax Expense Benefit At Federal Statutory Income Tax Rate IncomeTaxReconciliationIncomeTaxExpenseBenefitAtFederalStatutoryIncomeTaxRate	0	USD
CY2021	sir	Permanent Differences And Other PermanentDifferencesAndOther	15000	USD
CY2021	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	0	USD
CY2020	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	0	USD
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	0.49
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	718000	USD
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	5558000	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	0.58
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Outstanding Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestOutstandingAggregateIntrinsicValue	925000	USD
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	4718000	shares
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	0.53
CY2021Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue	506000	USD
CY2021	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	40000	USD
CY2020	us-gaap	Operating Lease Right Of Use Asset Amortization Expense OperatingLeaseRightOfUseAssetAmortizationExpense	40000	USD
CY2021	us-gaap	Operating Lease Payments OperatingLeasePayments	39000	USD
CY2020	us-gaap	Operating Lease Payments OperatingLeasePayments	42000	USD
CY2021	sir	Imputed Interest ImputedInterest	4000	USD
CY2020	sir	Imputed Interest ImputedInterest	4000	USD
CY2021	sir	Discount Rate DiscountRate	0.05	pure
CY2021Q4	sir	Remaining Cash Payments RemainingCashPayments	75000	USD
CY2021	us-gaap	Operating Lease Payments Use OperatingLeasePaymentsUse	39000	USD
CY2020	us-gaap	Operating Lease Payments Use OperatingLeasePaymentsUse	42000	USD
CY2021	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	99000	USD
CY2020	us-gaap	Right Of Use Asset Obtained In Exchange For Operating Lease Liability RightOfUseAssetObtainedInExchangeForOperatingLeaseLiability	0	USD
CY2021Q4	us-gaap	Other Assets OtherAssets	154000	USD
CY2020Q4	us-gaap	Other Assets OtherAssets	124000	USD
CY2021	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	136000	USD
CY2020	us-gaap	Income Loss From Continuing Operations Before Income Taxes Domestic IncomeLossFromContinuingOperationsBeforeIncomeTaxesDomestic	79000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	12148000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Operating Loss Carryforwards DeferredTaxAssetsOperatingLossCarryforwards	12636000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Investments DeferredTaxAssetsInvestments	1669000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Investments DeferredTaxAssetsInvestments	1669000	USD
CY2021Q4	us-gaap	Capitalized Costs Mineral Interests In Unproved Properties CapitalizedCostsMineralInterestsInUnprovedProperties	418000	USD
CY2020Q4	us-gaap	Capitalized Costs Mineral Interests In Unproved Properties CapitalizedCostsMineralInterestsInUnprovedProperties	410000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	309000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits Share Based Compensation Cost DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefitsShareBasedCompensationCost	286000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Derivative Instruments DeferredTaxAssetsDerivativeInstruments	98000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Derivative Instruments DeferredTaxAssetsDerivativeInstruments	148000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	91000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	110000	USD
CY2021Q4	sir	Lease Liability LeaseLiability	18	USD
CY2020Q4	sir	Lease Liability LeaseLiability	0	USD
CY2021Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	14561000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Valuation Allowance DeferredTaxAssetsValuationAllowance	15050000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	190000	USD
CY2020Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	209000	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Investments DeferredTaxLiabilitiesInvestments	173000	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Investments DeferredTaxLiabilitiesInvestments	207000	USD
CY2021Q4	sir	Lease Asset LeaseAsset	17	USD
CY2020Q4	sir	Lease Asset LeaseAsset	0	USD
CY2021Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	0	USD
CY2020Q4	us-gaap	Deferred Tax Liabilities Other DeferredTaxLiabilitiesOther	2000	USD
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CY2020Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	209000	USD
CY2021Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	0	USD
CY2020Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	0	USD
CY2021	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	-497000	USD
CY2020	us-gaap	Income Tax Reconciliation Tax Contingencies IncomeTaxReconciliationTaxContingencies	-197000	USD
CY2021	us-gaap	Income Tax Reconciliation Nondeductible Expense Share Based Compensation Cost IncomeTaxReconciliationNondeductibleExpenseShareBasedCompensationCost	4000	USD
CY2020	sir	Permanent Differences And Other PermanentDifferencesAndOther	-18000	USD
CY2021	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	-38000	USD
CY2020	us-gaap	Gain Loss On Derivative Instruments Net Pretax GainLossOnDerivativeInstrumentsNetPretax	-92000	USD
CY2020Q2	sir	Paycheck Protection Program Loan PaycheckProtectionProgramLoan	70000	USD
CY2021	sir	Ppp Loan Term PPPLoanTerm	two-year
CY2021	us-gaap	Debt Conversion Original Debt Interest Rate Of Debt DebtConversionOriginalDebtInterestRateOfDebt	0.010	pure
CY2021	sir	Forgiveness Of The Ppp Loan ForgivenessOfThePppLoan	10000	USD
CY2020	sir	Forgiveness Of The Ppp Loan ForgivenessOfThePppLoan	60000	USD
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CY2020	us-gaap	Other Income Disclosure Nonoperating OtherIncomeDisclosureNonoperating	60,000
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	4373000	shares
CY2019Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	0.58
CY2021	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	140000	shares
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0.67
CY2020	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	1325000	shares
CY2020	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	0.20
CY2021	sir	Number Of Options Exercised NumberOfOptionsExercised	-185000	shares
CY2021	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	0.45
CY2021Q4	us-gaap	Short Term Investments ShortTermInvestments	5087000	USD
CY2021Q4	us-gaap	Marketable Securities MarketableSecurities	1307000	USD
CY2021Q4	us-gaap	Financial Instruments Owned Corporate Equities At Fair Value FinancialInstrumentsOwnedCorporateEquitiesAtFairValue	3000	USD
CY2020Q4	us-gaap	Short Term Investments ShortTermInvestments	5798000	USD
CY2020Q4	us-gaap	Marketable Securities MarketableSecurities	1620000	USD
CY2020Q4	us-gaap	Financial Instruments Owned Corporate Equities At Fair Value FinancialInstrumentsOwnedCorporateEquitiesAtFairValue	49000	USD
CY2021	sir	Lease And Option Payments For Properties Solitario Owns LeaseAndOptionPaymentsForPropertiesSolitarioOwns	1046000	USD
CY2021Q4	us-gaap	Prepaid Rent PrepaidRent	777000	USD
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	5558000	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	0.58
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableNumber	4083500	shares
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	0.57
CY2020Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Vested And Expected To Vest Exercisable Aggregate Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsVestedAndExpectedToVestExercisableAggregateIntrinsicValue	446000	USD
CY2021Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognized	80000	USD
CY2021	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P21Y
CY2020	sir	Shares Repurchased SharesRepurchased	24700	shares
CY2020	sir	Aggregate Purchase Price AggregatePurchasePrice	5000	USD
CY2021Q4	sir	Total Shares Repurchased Shares TotalSharesRepurchasedShares	994000	shares
CY2021Q4	sir	Total Shares Repurchased TotalSharesRepurchased	467000	USD
CY2021	sir	Sale Of Shares Of Common Stock SaleOfSharesOfCommonStock	3100000000	shares
CY2021	sir	Sale Per Share Ofsharesofcommonstock SalePerShareOfsharesofcommonstock	0.50
CY2021	sir	Net Proceeds After Expenses NetProceedsAfterExpenses	1542000000	USD
CY2021	sir	Purchase Shareofcommonstock PurchaseShareofcommonstock	50000000	shares

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