3.22.0.1 html 212 592 1 true 74 0 false 4 false false R1.htm 000 - Document - Document And Entity Information Sheet http://www.brpm.com/role/DocumentAndEntityInformation Document And Entity Information Cover 1 false false R2.htm 001 - Statement - Balance Sheets Sheet http://www.brpm.com/role/ConsolidatedBalanceSheet Balance Sheets Statements 2 false false R3.htm 002 - Statement - Balance Sheets (Parentheticals) Sheet http://www.brpm.com/role/ConsolidatedBalanceSheet_Parentheticals Balance Sheets (Parentheticals) Statements 3 false false R4.htm 003 - Statement - Statements of Operations Sheet http://www.brpm.com/role/ConsolidatedIncomeStatement Statements of Operations Statements 4 false false R5.htm 004 - Statement - Statement of Changes in Stockholders??? Deficit Sheet http://www.brpm.com/role/ShareholdersEquityType2or3 Statement of Changes in Stockholders??? Deficit Statements 5 false false R6.htm 005 - Statement - Statement of Changes in Stockholders??? Deficit (Parentheticals) Sheet http://www.brpm.com/role/ShareholdersEquityType2or3_Parentheticals Statement of Changes in Stockholders??? Deficit (Parentheticals) Statements 6 false false R7.htm 006 - Statement - Statements of Cash Flows Sheet http://www.brpm.com/role/ConsolidatedCashFlow Statements of Cash Flows Statements 7 false false R8.htm 007 - Disclosure - Organization and Nature of Business Operations Sheet http://www.brpm.com/role/OrganizationandNatureofBusinessOperations Organization and Nature of Business Operations Notes 8 false false R9.htm 008 - Disclosure - Summary of Significant Accounting Policies Sheet http://www.brpm.com/role/SummaryofSignificantAccountingPolicies Summary of Significant Accounting Policies Notes 9 false false R10.htm 009 - Disclosure - Related Party Transactions Sheet http://www.brpm.com/role/RelatedPartyTransactions Related Party Transactions Notes 10 false false R11.htm 010 - Disclosure - Recurring Fair Value Measurements Sheet http://www.brpm.com/role/RecurringFairValueMeasurements Recurring Fair Value Measurements Notes 11 false false R12.htm 011 - Disclosure - Commitments Sheet http://www.brpm.com/role/Commitments Commitments Notes 12 false false R13.htm 012 - Disclosure - Warrants Sheet http://www.brpm.com/role/Warrants Warrants Notes 13 false false R14.htm 013 - Disclosure - Income Taxes Sheet http://www.brpm.com/role/IncomeTaxes Income Taxes Notes 14 false false R15.htm 014 - Disclosure - Stockholders' Equity Sheet http://www.brpm.com/role/StockholdersEquity Stockholders' Equity Notes 15 false false R16.htm 015 - Disclosure - Proposed Business Combination Sheet http://www.brpm.com/role/ProposedBusinessCombination Proposed Business Combination Notes 16 false false R17.htm 016 - Disclosure - Subsequent Events Sheet http://www.brpm.com/role/SubsequentEvents Subsequent Events Notes 17 false false R18.htm 017 - Disclosure - Description of the Business Sheet http://www.brpm.com/role/DescriptionoftheBusiness Description of the Business Notes 18 false false R19.htm 018 - Disclosure - Property, Equipment and Leasehold Improvements Sheet http://www.brpm.com/role/PropertyEquipmentandLeaseholdImprovements Property, Equipment and Leasehold Improvements Notes 19 false false R20.htm 019 - Disclosure - Intangibles Assets Sheet http://www.brpm.com/role/IntangiblesAssets Intangibles Assets Notes 20 false false R21.htm 020 - Disclosure - Accounts Payable and Accrued Expenses Sheet http://www.brpm.com/role/AccountsPayableandAccruedExpenses Accounts Payable and Accrued Expenses Notes 21 false false R22.htm 021 - Disclosure - Debt Sheet http://www.brpm.com/role/Debt Debt Notes 22 false false R23.htm 022 - Disclosure - Stock Compensation Expense and Warrants Sheet http://www.brpm.com/role/StockCompensationExpenseandWarrants Stock Compensation Expense and Warrants Notes 23 false false R24.htm 023 - Disclosure - 401(K) Plan Sheet http://www.brpm.com/role/401KPlan 401(K) Plan Notes 24 false false R25.htm 024 - Disclosure - Litigation Sheet http://www.brpm.com/role/Litigation Litigation Notes 25 false false R26.htm 025 - Disclosure - Going Concern Sheet http://www.brpm.com/role/GoingConcern Going Concern Notes 26 false false R27.htm 026 - Disclosure - Accounting Policies, by Policy (Policies) Sheet http://www.brpm.com/role/AccountingPoliciesByPolicy Accounting Policies, by Policy (Policies) Policies http://www.brpm.com/role/SummaryofSignificantAccountingPolicies 27 false false R28.htm 027 - Disclosure - Summary of Significant Accounting Policies (Tables) Sheet http://www.brpm.com/role/SummaryofSignificantAccountingPoliciesTables Summary of Significant Accounting Policies (Tables) Tables http://www.brpm.com/role/SummaryofSignificantAccountingPolicies 28 false false R29.htm 028 - Disclosure - Recurring Fair Value Measurements (Tables) Sheet http://www.brpm.com/role/RecurringFairValueMeasurementsTables Recurring Fair Value Measurements (Tables) Tables http://www.brpm.com/role/RecurringFairValueMeasurements 29 false false R30.htm 029 - Disclosure - Commitments and Contingencies (Tables) Sheet http://www.brpm.com/role/CommitmentsandContingenciesTables Commitments and Contingencies (Tables) Tables 30 false false R31.htm 030 - Disclosure - Income Taxes (Tables) Sheet http://www.brpm.com/role/IncomeTaxesTables Income Taxes (Tables) Tables http://www.brpm.com/role/IncomeTaxes 31 false false R32.htm 031 - Disclosure - Property, Equipment and Leasehold Improvements (Tables) Sheet http://www.brpm.com/role/PropertyEquipmentandLeaseholdImprovementsTables Property, Equipment and Leasehold Improvements (Tables) Tables http://www.brpm.com/role/PropertyEquipmentandLeaseholdImprovements 32 false false R33.htm 032 - Disclosure - Intangibles Assets (Tables) Sheet http://www.brpm.com/role/IntangiblesAssetsTables Intangibles Assets (Tables) Tables http://www.brpm.com/role/IntangiblesAssets 33 false false R34.htm 033 - Disclosure - Accounts Payable and Accrued Expenses (Tables) Sheet http://www.brpm.com/role/AccountsPayableandAccruedExpensesTables Accounts Payable and Accrued Expenses (Tables) Tables http://www.brpm.com/role/AccountsPayableandAccruedExpenses 34 false false R35.htm 034 - Disclosure - Debt (Tables) Sheet http://www.brpm.com/role/DebtTables Debt (Tables) Tables http://www.brpm.com/role/Debt 35 false false R36.htm 035 - Disclosure - Stock Compensation Expense and Warrants (Tables) Sheet http://www.brpm.com/role/StockCompensationExpenseandWarrantsTables Stock Compensation Expense and Warrants (Tables) Tables http://www.brpm.com/role/StockCompensationExpenseandWarrants 36 false false R37.htm 036 - Disclosure - Organization and Nature of Business Operations (Details) Sheet http://www.brpm.com/role/OrganizationandNatureofBusinessOperationsDetails Organization and Nature of Business Operations (Details) Details http://www.brpm.com/role/OrganizationandNatureofBusinessOperations 37 false false R38.htm 037 - Disclosure - Summary of Significant Accounting Policies (Details) Sheet http://www.brpm.com/role/SummaryofSignificantAccountingPoliciesDetails Summary of Significant Accounting Policies (Details) Details http://www.brpm.com/role/SummaryofSignificantAccountingPoliciesTables 38 false false R39.htm 038 - Disclosure - Summary of Significant Accounting Policies (Details) - Schedule of balance sheet are reconciled Sheet http://www.brpm.com/role/ScheduleofbalancesheetarereconciledTable Summary of Significant Accounting Policies (Details) - Schedule of balance sheet are reconciled Details http://www.brpm.com/role/SummaryofSignificantAccountingPoliciesTables 39 false false R40.htm 039 - Disclosure - Summary of Significant Accounting Policies (Details) - Schedule of reconciliation of the numerator and denominator used to compute basic and diluted net loss per share Sheet http://www.brpm.com/role/ScheduleofreconciliationofthenumeratoranddenominatorusedtocomputebasicanddilutednetlosspershareTable Summary of Significant Accounting Policies (Details) - Schedule of reconciliation of the numerator and denominator used to compute basic and diluted net loss per share Details http://www.brpm.com/role/SummaryofSignificantAccountingPoliciesTables 40 false false R41.htm 040 - Disclosure - Related Party Transactions (Details) Sheet http://www.brpm.com/role/RelatedPartyTransactionsDetails Related Party Transactions (Details) Details http://www.brpm.com/role/RelatedPartyTransactions 41 false false R42.htm 041 - Disclosure - Recurring Fair Value Measurements (Details) - Schedule of fair value, assets and liabilities measured on recurring basis Sheet http://www.brpm.com/role/ScheduleoffairvalueassetsandliabilitiesmeasuredonrecurringbasisTable Recurring Fair Value Measurements (Details) - Schedule of fair value, assets and liabilities measured on recurring basis Details http://www.brpm.com/role/RecurringFairValueMeasurementsTables 42 false false R43.htm 042 - Disclosure - Recurring Fair Value Measurements (Details) - Schedule of fair value of initial measurement Sheet http://www.brpm.com/role/ScheduleoffairvalueofinitialmeasurementTable Recurring Fair Value Measurements (Details) - Schedule of fair value of initial measurement Details http://www.brpm.com/role/RecurringFairValueMeasurementsTables 43 false false R44.htm 043 - Disclosure - Recurring Fair Value Measurements (Details) - Schedule of change in fair value of level 3 warrant liabilities Sheet http://www.brpm.com/role/Scheduleofchangeinfairvalueoflevel3warrantliabilitiesTable Recurring Fair Value Measurements (Details) - Schedule of change in fair value of level 3 warrant liabilities Details http://www.brpm.com/role/RecurringFairValueMeasurementsTables 44 false false R45.htm 044 - Disclosure - Commitments (Details) Sheet http://www.brpm.com/role/CommitmentsDetails Commitments (Details) Details http://www.brpm.com/role/CommitmentsandContingenciesTables 45 false false R46.htm 045 - Disclosure - Warrants (Details) Sheet http://www.brpm.com/role/WarrantsDetails Warrants (Details) Details http://www.brpm.com/role/Warrants 46 false false R47.htm 046 - Disclosure - Income Taxes (Details) Sheet http://www.brpm.com/role/IncomeTaxesDetails Income Taxes (Details) Details http://www.brpm.com/role/IncomeTaxesTables 47 false false R48.htm 047 - Disclosure - Income Taxes (Details) - Schedule of deferred tax asset Sheet http://www.brpm.com/role/ScheduleofdeferredtaxassetTable Income Taxes (Details) - Schedule of deferred tax asset Details http://www.brpm.com/role/IncomeTaxesTables 48 false false R49.htm 048 - Disclosure - Income Taxes (Details) - Schedule of the income tax provision Sheet http://www.brpm.com/role/ScheduleoftheincometaxprovisionTable Income Taxes (Details) - Schedule of the income tax provision Details http://www.brpm.com/role/IncomeTaxesTables 49 false false R50.htm 049 - Disclosure - Income Taxes (Details) - Schedule of reconciliation of the Company???s effective income tax rate Sheet http://www.brpm.com/role/ScheduleofreconciliationoftheCompanyseffectiveincometaxrateTable Income Taxes (Details) - Schedule of reconciliation of the Company???s effective income tax rate Details http://www.brpm.com/role/IncomeTaxesTables 50 false false R51.htm 050 - Disclosure - Stockholders' Equity (Details) Sheet http://www.brpm.com/role/StockholdersEquityDetails Stockholders' Equity (Details) Details http://www.brpm.com/role/StockholdersEquity 51 false false R52.htm 051 - Disclosure - Proposed Business Combination (Details) Sheet http://www.brpm.com/role/ProposedBusinessCombinationDetails Proposed Business Combination (Details) Details http://www.brpm.com/role/ProposedBusinessCombination 52 false false R53.htm 052 - Disclosure - Subsequent Events (Details) Sheet http://www.brpm.com/role/SubsequentEventsDetails Subsequent Events (Details) Details http://www.brpm.com/role/SubsequentEvents 53 false false R54.htm 053 - Disclosure - Summary of Significant Accounting Policies (Details) - Schedule of estimated useful lives of our fixed assets Sheet http://www.brpm.com/role/ScheduleofestimatedusefullivesofourfixedassetsTable Summary of Significant Accounting Policies (Details) - Schedule of estimated useful lives of our fixed assets Details http://www.brpm.com/role/SummaryofSignificantAccountingPoliciesTables 54 false false R55.htm 054 - Disclosure - Summary of Significant Accounting Policies (Details) - Schedule of disaggregates the company???s revenue Sheet http://www.brpm.com/role/ScheduleofdisaggregatesthecompanysrevenueTable Summary of Significant Accounting Policies (Details) - Schedule of disaggregates the company???s revenue Details http://www.brpm.com/role/SummaryofSignificantAccountingPoliciesTables 55 false false R56.htm 055 - Disclosure - Summary of Significant Accounting Policies (Details) - Schedule of basic and diluted weighted-average shares of common stock outstanding Sheet http://www.brpm.com/role/ScheduleofbasicanddilutedweightedaveragesharesofcommonstockoutstandingTable Summary of Significant Accounting Policies (Details) - Schedule of basic and diluted weighted-average shares of common stock outstanding Details http://www.brpm.com/role/SummaryofSignificantAccountingPoliciesTables 56 false false R57.htm 056 - Disclosure - Summary of Significant Accounting Policies (Details) - Schedule of consolidated statement of operations Sheet http://www.brpm.com/role/ScheduleofconsolidatedstatementofoperationsTable Summary of Significant Accounting Policies (Details) - Schedule of consolidated statement of operations Details http://www.brpm.com/role/SummaryofSignificantAccountingPoliciesTables 57 false false R58.htm 057 - Disclosure - Summary of Significant Accounting Policies (Details) - Schedule of financial statements Sheet http://www.brpm.com/role/ScheduleoffinancialstatementsTable Summary of Significant Accounting Policies (Details) - Schedule of financial statements Details http://www.brpm.com/role/SummaryofSignificantAccountingPoliciesTables 58 false false R59.htm 058 - Disclosure - Property, Equipment and Leasehold Improvements (Details) Sheet http://www.brpm.com/role/PropertyEquipmentandLeaseholdImprovementsDetails Property, Equipment and Leasehold Improvements (Details) Details http://www.brpm.com/role/PropertyEquipmentandLeaseholdImprovementsTables 59 false false R60.htm 059 - Disclosure - Property, Equipment and Leasehold Improvements (Details) - Schedule property, equipment and leasehold improvements Sheet http://www.brpm.com/role/SchedulepropertyequipmentandleaseholdimprovementsTable Property, Equipment and Leasehold Improvements (Details) - Schedule property, equipment and leasehold improvements Details http://www.brpm.com/role/PropertyEquipmentandLeaseholdImprovementsTables 60 false false R61.htm 060 - Disclosure - Intangibles Assets (Details) Sheet http://www.brpm.com/role/IntangiblesAssetsDetails Intangibles Assets (Details) Details http://www.brpm.com/role/IntangiblesAssetsTables 61 false false R62.htm 061 - Disclosure - Intangibles Assets (Details) - Schedule of intangible assets Sheet http://www.brpm.com/role/ScheduleofintangibleassetsTable Intangibles Assets (Details) - Schedule of intangible assets Details http://www.brpm.com/role/IntangiblesAssetsTables 62 false false R63.htm 062 - Disclosure - Intangibles Assets (Details) - Schedule of estimated future amortization of intangible assets Sheet http://www.brpm.com/role/ScheduleofestimatedfutureamortizationofintangibleassetsTable Intangibles Assets (Details) - Schedule of estimated future amortization of intangible assets Details http://www.brpm.com/role/IntangiblesAssetsTables 63 false false R64.htm 063 - Disclosure - Accounts Payable and Accrued Expenses (Details) - Schedule of accounts payable and accrued expenses Sheet http://www.brpm.com/role/ScheduleofaccountspayableandaccruedexpensesTable Accounts Payable and Accrued Expenses (Details) - Schedule of accounts payable and accrued expenses Details http://www.brpm.com/role/AccountsPayableandAccruedExpensesTables 64 false false R65.htm 064 - Disclosure - Debt (Details) Sheet http://www.brpm.com/role/DebtDetails Debt (Details) Details http://www.brpm.com/role/DebtTables 65 false false R66.htm 065 - Disclosure - Debt (Details) - Schedule of debt Sheet http://www.brpm.com/role/ScheduleofdebtTable Debt (Details) - Schedule of debt Details http://www.brpm.com/role/DebtTables 66 false false R67.htm 066 - Disclosure - Debt (Details) - Schedule of long-term debt maturities Sheet http://www.brpm.com/role/ScheduleoflongtermdebtmaturitiesTable Debt (Details) - Schedule of long-term debt maturities Details http://www.brpm.com/role/DebtTables 67 false false R68.htm 067 - Disclosure - Stock Compensation Expense and Warrants (Details) Sheet http://www.brpm.com/role/StockCompensationExpenseandWarrantsDetails Stock Compensation Expense and Warrants (Details) Details http://www.brpm.com/role/StockCompensationExpenseandWarrantsTables 68 false false R69.htm 068 - Disclosure - Stock Compensation Expense and Warrants (Details) - Schedule of equity incentive plan Sheet http://www.brpm.com/role/ScheduleofequityincentiveplanTable Stock Compensation Expense and Warrants (Details) - Schedule of equity incentive plan Details http://www.brpm.com/role/StockCompensationExpenseandWarrantsTables 69 false false R70.htm 069 - Disclosure - Stock Compensation Expense and Warrants (Details) - Schedule of stock option activity and related information Sheet http://www.brpm.com/role/ScheduleofstockoptionactivityandrelatedinformationTable Stock Compensation Expense and Warrants (Details) - Schedule of stock option activity and related information Details http://www.brpm.com/role/StockCompensationExpenseandWarrantsTables 70 false false R71.htm 070 - Disclosure - Stock Compensation Expense and Warrants (Details) - Schedule of fair value of options and warrants granted Sheet http://www.brpm.com/role/ScheduleoffairvalueofoptionsandwarrantsgrantedTable Stock Compensation Expense and Warrants (Details) - Schedule of fair value of options and warrants granted Details http://www.brpm.com/role/StockCompensationExpenseandWarrantsTables 71 false false R72.htm 071 - Disclosure - Stock Compensation Expense and Warrants (Details) - Schedule of restricted stock awards activity and related information Sheet http://www.brpm.com/role/ScheduleofrestrictedstockawardsactivityandrelatedinformationTable Stock Compensation Expense and Warrants (Details) - Schedule of restricted stock awards activity and related information Details http://www.brpm.com/role/StockCompensationExpenseandWarrantsTables 72 false false R73.htm 072 - Disclosure - Stock Compensation Expense and Warrants (Details) - Schedule of warrant activity Sheet http://www.brpm.com/role/ScheduleofwarrantactivityTable Stock Compensation Expense and Warrants (Details) - Schedule of warrant activity Details http://www.brpm.com/role/StockCompensationExpenseandWarrantsTables 73 false false R74.htm 073 - Disclosure - Stock Compensation Expense and Warrants (Details) - Schedule of weighted-average exercise price and weighted-average grant date Sheet http://www.brpm.com/role/ScheduleofweightedaverageexercisepriceandweightedaveragegrantdateTable Stock Compensation Expense and Warrants (Details) - Schedule of weighted-average exercise price and weighted-average grant date Details http://www.brpm.com/role/StockCompensationExpenseandWarrantsTables 74 false false R75.htm 074 - Disclosure - Stock Compensation Expense and Warrants (Details) - Schedule of stock-based compensation expense Sheet http://www.brpm.com/role/ScheduleofstockbasedcompensationexpenseTable Stock Compensation Expense and Warrants (Details) - Schedule of stock-based compensation expense Details http://www.brpm.com/role/StockCompensationExpenseandWarrantsTables 75 false false R76.htm 075 - Disclosure - Commitments and Contingencies (Details) - Schedule of future minimum lease payment Sheet http://www.brpm.com/role/ScheduleoffutureminimumleasepaymentTable Commitments and Contingencies (Details) - Schedule of future minimum lease payment Details http://www.brpm.com/role/CommitmentsandContingenciesTables 76 false false R77.htm 076 - Disclosure - 401(K) Plan (Details) Sheet http://www.brpm.com/role/401KPlanDetails 401(K) Plan (Details) Details http://www.brpm.com/role/401KPlan 77 false false R78.htm 077 - Disclosure - Litigation (Details) Sheet http://www.brpm.com/role/LitigationDetails Litigation (Details) Details http://www.brpm.com/role/Litigation 78 false false R79.htm 078 - Disclosure - Income Taxes (Details) - Schedule of deferred tax assets Sheet http://www.brpm.com/role/ScheduleofdeferredtaxassetsTable Income Taxes (Details) - Schedule of deferred tax assets Details http://www.brpm.com/role/IncomeTaxesTables 79 false false R80.htm 079 - Disclosure - Income Taxes (Details) - Schedule of the statutory tax rates and the effective tax rates Sheet http://www.brpm.com/role/ScheduleofthestatutorytaxratesandtheeffectivetaxratesTable Income Taxes (Details) - Schedule of the statutory tax rates and the effective tax rates Details http://www.brpm.com/role/IncomeTaxesTables 80 false false R81.htm 080 - Disclosure - Going Concern (Details) Sheet http://www.brpm.com/role/GoingConcernDetails Going Concern (Details) Details http://www.brpm.com/role/GoingConcern 81 false false All Reports Book All Reports fs42022a1_brileyprinc.htm brpm-20211231.xsd brpm-20211231_cal.xml brpm-20211231_def.xml brpm-20211231_lab.xml brpm-20211231_pre.xml fs42022a1ex-fee_brileyprinc.htm fs42022a1ex23-1_brileyprinc.htm fs42022a1ex23-2_brileyprinc.htm fs42022a1ex99-2_brileyprinc.htm fs42022a1ex99-3_brileyprinc.htm fs42022a1ex99-4_brileyprinc.htm fs42022a1ex99-5_brileyprinc.htm fs42022a1ex99-6_brileyprinc.htm fs42022a1ex99-7_brileyprinc.htm fs42022a1ex99-8_brileyprinc.htm fs42022a1ex99-9_brileyprinc.htm tflowchart_001.jpg http://fasb.org/srt/2021-01-31 http://fasb.org/us-gaap/2021-01-31 http://xbrl.sec.gov/dei/2021q4 true true