3.20.4 html 170 395 1 false 68 0 false 5 false false R1.htm 000 - Document - Document And Entity Information Sheet http://americann.co/20200930/role/statement-document-and-entity-information Document And Entity Information Cover 1 false false R2.htm 001 - Statement - Consolidated Balance Sheets Sheet http://americann.co/20200930/role/statement-consolidated-balance-sheets Consolidated Balance Sheets Statements 2 false false R3.htm 002 - Statement - Consolidated Balance Sheets (Parentheticals) Sheet http://americann.co/20200930/role/statement-consolidated-balance-sheets-parentheticals Consolidated Balance Sheets (Parentheticals) Statements 3 false false R4.htm 003 - Statement - Consolidated Statements of Operations Sheet http://americann.co/20200930/role/statement-consolidated-statements-of-operations Consolidated Statements of Operations Statements 4 false false R5.htm 004 - Statement - Consolidated Statements of Changes in Stockholders' Equity Sheet http://americann.co/20200930/role/statement-consolidated-statements-of-changes-in-stockholders-equity Consolidated Statements of Changes in Stockholders' Equity Statements 5 false false R6.htm 005 - Statement - Consolidated Statements of Cash Flows Sheet http://americann.co/20200930/role/statement-consolidated-statements-of-cash-flows Consolidated Statements of Cash Flows Statements 6 false false R7.htm 006 - Disclosure - Note 1 - Description of Business and Significant Accounting Policies Sheet http://americann.co/20200930/role/statement-note-1-description-of-business-and-significant-accounting-policies Note 1 - Description of Business and Significant Accounting Policies Notes 7 false false R8.htm 007 - Disclosure - Note 2 - Going Concern Sheet http://americann.co/20200930/role/statement-note-2-going-concern Note 2 - Going Concern Notes 8 false false R9.htm 008 - Disclosure - Note 3 - Cash and Cash Equivalents and Restricted Cash Sheet http://americann.co/20200930/role/statement-note-3-cash-and-cash-equivalents-and-restricted-cash Note 3 - Cash and Cash Equivalents and Restricted Cash Notes 9 false false R10.htm 009 - Disclosure - Note 4 - Notes Receivable Notes http://americann.co/20200930/role/statement-note-4-notes-receivable Note 4 - Notes Receivable Notes 10 false false R11.htm 010 - Disclosure - Note 5 - Notes Payable Notes http://americann.co/20200930/role/statement-note-5-notes-payable Note 5 - Notes Payable Notes 11 false false R12.htm 011 - Disclosure - Note 6 - Related Party Transactions Sheet http://americann.co/20200930/role/statement-note-6-related-party-transactions Note 6 - Related Party Transactions Notes 12 false false R13.htm 012 - Disclosure - Note 7 - Earnings Per Share Sheet http://americann.co/20200930/role/statement-note-7-earnings-per-share Note 7 - Earnings Per Share Notes 13 false false R14.htm 013 - Disclosure - Note 8 - Income Taxes Sheet http://americann.co/20200930/role/statement-note-8-income-taxes Note 8 - Income Taxes Notes 14 false false R15.htm 014 - Disclosure - Note 9 - Equity Sheet http://americann.co/20200930/role/statement-note-9-equity Note 9 - Equity Notes 15 false false R16.htm 015 - Disclosure - Note 10 - Commitments and Contingencies Sheet http://americann.co/20200930/role/statement-note-10-commitments-and-contingencies Note 10 - Commitments and Contingencies Notes 16 false false R17.htm 016 - Disclosure - Note 11 - Subseqent Events Sheet http://americann.co/20200930/role/statement-note-11-subseqent-events Note 11 - Subseqent Events Notes 17 false false R18.htm 017 - Disclosure - Significant Accounting Policies (Policies) Sheet http://americann.co/20200930/role/statement-significant-accounting-policies-policies Significant Accounting Policies (Policies) Policies http://americann.co/20200930/role/statement-note-1-description-of-business-and-significant-accounting-policies 18 false false R19.htm 018 - Disclosure - Note 1 - Description of Business and Significant Accounting Policies (Tables) Sheet http://americann.co/20200930/role/statement-note-1-description-of-business-and-significant-accounting-policies-tables Note 1 - Description of Business and Significant Accounting Policies (Tables) Tables http://americann.co/20200930/role/statement-note-1-description-of-business-and-significant-accounting-policies 19 false false R20.htm 019 - Disclosure - Note 3 - Cash and Cash Equivalents and Restricted Cash (Tables) Sheet http://americann.co/20200930/role/statement-note-3-cash-and-cash-equivalents-and-restricted-cash-tables Note 3 - Cash and Cash Equivalents and Restricted Cash (Tables) Tables http://americann.co/20200930/role/statement-note-3-cash-and-cash-equivalents-and-restricted-cash 20 false false R21.htm 020 - Disclosure - Note 4 - Notes Receivable (Tables) Notes http://americann.co/20200930/role/statement-note-4-notes-receivable-tables Note 4 - Notes Receivable (Tables) Tables http://americann.co/20200930/role/statement-note-4-notes-receivable 21 false false R22.htm 021 - Disclosure - Note 7 - Earnings Per Share (Tables) Sheet http://americann.co/20200930/role/statement-note-7-earnings-per-share-tables Note 7 - Earnings Per Share (Tables) Tables http://americann.co/20200930/role/statement-note-7-earnings-per-share 22 false false R23.htm 022 - Disclosure - Note 8 - Income Taxes (Tables) Sheet http://americann.co/20200930/role/statement-note-8-income-taxes-tables Note 8 - Income Taxes (Tables) Tables http://americann.co/20200930/role/statement-note-8-income-taxes 23 false false R24.htm 023 - Disclosure - Note 9 - Equity (Tables) Sheet http://americann.co/20200930/role/statement-note-9-equity-tables Note 9 - Equity (Tables) Tables http://americann.co/20200930/role/statement-note-9-equity 24 false false R25.htm 024 - Disclosure - Note 10 - Commitments and Contingencies (Tables) Sheet http://americann.co/20200930/role/statement-note-10-commitments-and-contingencies-tables Note 10 - Commitments and Contingencies (Tables) Tables http://americann.co/20200930/role/statement-note-10-commitments-and-contingencies 25 false false R26.htm 025 - Disclosure - Note 1 - Description of Business and Significant Accounting Policies (Details Textual) Sheet http://americann.co/20200930/role/statement-note-1-description-of-business-and-significant-accounting-policies-details-textual Note 1 - Description of Business and Significant Accounting Policies (Details Textual) Details http://americann.co/20200930/role/statement-note-1-description-of-business-and-significant-accounting-policies-tables 26 false false R27.htm 026 - Disclosure - Note 1 - Description of Business and Significant Accounting Policies - Property, Plant and Equipment, Net (Details) Sheet http://americann.co/20200930/role/statement-note-1-description-of-business-and-significant-accounting-policies-property-plant-and-equipment-net-details Note 1 - Description of Business and Significant Accounting Policies - Property, Plant and Equipment, Net (Details) Details 27 false false R28.htm 027 - Disclosure - Note 2 - Going Concern (Details Textual) Sheet http://americann.co/20200930/role/statement-note-2-going-concern-details-textual Note 2 - Going Concern (Details Textual) Details http://americann.co/20200930/role/statement-note-2-going-concern 28 false false R29.htm 028 - Disclosure - Note 3 - Cash and Cash Equivalents and Restricted Cash - Reconciliation of Cash, Cash Equivalents and Restricted Cash (Details) Sheet http://americann.co/20200930/role/statement-note-3-cash-and-cash-equivalents-and-restricted-cash-reconciliation-of-cash-cash-equivalents-and-restricted-cash-details Note 3 - Cash and Cash Equivalents and Restricted Cash - Reconciliation of Cash, Cash Equivalents and Restricted Cash (Details) Details 29 false false R30.htm 029 - Disclosure - Note 4 - Notes Receivable (Details Textual) Notes http://americann.co/20200930/role/statement-note-4-notes-receivable-details-textual Note 4 - Notes Receivable (Details Textual) Details http://americann.co/20200930/role/statement-note-4-notes-receivable-tables 30 false false R31.htm 030 - Disclosure - Note 4 - Notes Receivable - Schedule of Notes Receivable (Details) Notes http://americann.co/20200930/role/statement-note-4-notes-receivable-schedule-of-notes-receivable-details Note 4 - Notes Receivable - Schedule of Notes Receivable (Details) Details 31 false false R32.htm 031 - Disclosure - Note 4 - Notes Receivable - Schedule of Notes Receivable (Details) (Parentheticals) Notes http://americann.co/20200930/role/statement-note-4-notes-receivable-schedule-of-notes-receivable-details-parentheticals Note 4 - Notes Receivable - Schedule of Notes Receivable (Details) (Parentheticals) Details 32 false false R33.htm 032 - Disclosure - Note 5 - Notes Payable (Details Textual) Notes http://americann.co/20200930/role/statement-note-5-notes-payable-details-textual Note 5 - Notes Payable (Details Textual) Details http://americann.co/20200930/role/statement-note-5-notes-payable 33 false false R34.htm 033 - Disclosure - Note 6 - Related Party Transactions (Details Textual) Sheet http://americann.co/20200930/role/statement-note-6-related-party-transactions-details-textual Note 6 - Related Party Transactions (Details Textual) Details http://americann.co/20200930/role/statement-note-6-related-party-transactions 34 false false R35.htm 034 - Disclosure - Note 7 - Earnings Per Share (Details Textual) Sheet http://americann.co/20200930/role/statement-note-7-earnings-per-share-details-textual Note 7 - Earnings Per Share (Details Textual) Details http://americann.co/20200930/role/statement-note-7-earnings-per-share-tables 35 false false R36.htm 035 - Disclosure - Note 7 - Earnings Per Share - Schedule of Earnings Per Share, Basic and Diluted (Details) Sheet http://americann.co/20200930/role/statement-note-7-earnings-per-share-schedule-of-earnings-per-share-basic-and-diluted-details Note 7 - Earnings Per Share - Schedule of Earnings Per Share, Basic and Diluted (Details) Details 36 false false R37.htm 036 - Disclosure - Note 8 - Income Taxes (Details Textual) Sheet http://americann.co/20200930/role/statement-note-8-income-taxes-details-textual Note 8 - Income Taxes (Details Textual) Details http://americann.co/20200930/role/statement-note-8-income-taxes-tables 37 false false R38.htm 037 - Disclosure - Note 8 - Income Taxes - Deferred Tax Assets and Liabilities (Details) Sheet http://americann.co/20200930/role/statement-note-8-income-taxes-deferred-tax-assets-and-liabilities-details Note 8 - Income Taxes - Deferred Tax Assets and Liabilities (Details) Details 38 false false R39.htm 038 - Disclosure - Note 8 - Income Taxes - Temporary Differences Between Basis and Reported Deferred Tax Assets (Details) Sheet http://americann.co/20200930/role/statement-note-8-income-taxes-temporary-differences-between-basis-and-reported-deferred-tax-assets-details Note 8 - Income Taxes - Temporary Differences Between Basis and Reported Deferred Tax Assets (Details) Details 39 false false R40.htm 039 - Disclosure - Note 8 - Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) Sheet http://americann.co/20200930/role/statement-note-8-income-taxes-schedule-of-effective-income-tax-rate-reconciliation-details Note 8 - Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details) Details 40 false false R41.htm 040 - Disclosure - Note 9 - Equity (Details Textual) Sheet http://americann.co/20200930/role/statement-note-9-equity-details-textual Note 9 - Equity (Details Textual) Details http://americann.co/20200930/role/statement-note-9-equity-tables 41 false false R42.htm 041 - Disclosure - Note 9 - Equity - Stock Option Activity (Details) Sheet http://americann.co/20200930/role/statement-note-9-equity-stock-option-activity-details Note 9 - Equity - Stock Option Activity (Details) Details 42 false false R43.htm 042 - Disclosure - Note 9 - Equity - Warrant Activity (Details) Sheet http://americann.co/20200930/role/statement-note-9-equity-warrant-activity-details Note 9 - Equity - Warrant Activity (Details) Details 43 false false R44.htm 043 - Disclosure - Note 10 - Commitments and Contingencies (Details Textual) Sheet http://americann.co/20200930/role/statement-note-10-commitments-and-contingencies-details-textual Note 10 - Commitments and Contingencies (Details Textual) Details http://americann.co/20200930/role/statement-note-10-commitments-and-contingencies-tables 44 false false R45.htm 044 - Disclosure - Note 10 - Commitments and Contingencies - Lease Related Terms and Discount Rates (Details) Sheet http://americann.co/20200930/role/statement-note-10-commitments-and-contingencies-lease-related-terms-and-discount-rates-details Note 10 - Commitments and Contingencies - Lease Related Terms and Discount Rates (Details) Details 45 false false R46.htm 045 - Disclosure - Note 10 - Commitments and Contingencies - Future Rental Payments Under Operating Leases (Details) Sheet http://americann.co/20200930/role/statement-note-10-commitments-and-contingencies-future-rental-payments-under-operating-leases-details Note 10 - Commitments and Contingencies - Future Rental Payments Under Operating Leases (Details) Details 46 false false R47.htm 046 - Disclosure - Note 11 - Subseqent Events (Details Textual) Sheet http://americann.co/20200930/role/statement-note-11-subseqent-events-details-textual Note 11 - Subseqent Events (Details Textual) Details http://americann.co/20200930/role/statement-note-11-subseqent-events 47 false false All Reports Book All Reports acan-20200930.xml acan-20200930.xsd acan-20200930_cal.xml acan-20200930_def.xml acan-20200930_lab.xml acan-20200930_pre.xml http://fasb.org/srt/2020-01-31 http://fasb.org/us-gaap/2020-01-31 http://xbrl.sec.gov/dei/2019-01-31 true true