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Note 12 - Commitments and Contingencies (Details) |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 Months Ended | 9 Months Ended |  |  |  |
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May 08, 2018 USD ($) | Aug. 22, 2017 USD ($) shares | Jul. 24, 2017 USD ($) | Jul. 23, 2017 USD ($) | Oct. 03, 2016 shares | Mar. 25, 2016 USD ($) | Mar. 21, 2016 USD ($) $ / shares shares | Sep. 15, 2015 USD ($) | Sep. 15, 2015 HKD ($) | Mar. 16, 2015 USD ($) | Nov. 10, 2014 shares | Jan. 07, 2014 | Jun. 17, 2013 USD ($) | May 03, 2013 USD ($) $ / shares shares | Sep. 30, 2018 USD ($) shares | Sep. 30, 2017 USD ($) shares | Sep. 30, 2018 USD ($) shares | Sep. 30, 2017 USD ($) shares | Sep. 28, 2018 $ / shares | Apr. 23, 2018 | Sep. 13, 2017 | Sep. 19, 2013
Note 12 - Commitments and Contingencies (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of Lessor Leasing Arrangements, Operating Leases |  |  |  |  |  |  |  |  |  |  |  | The Company subleased a portion of its warehouse space to one of its customers with a one-year term commencing on December 1, 2013 and expiring on November 30, 2014, which has been renewed every year with the current term expiring on October 31, 2018. |  |  |  |  |  |  |  |  |  |
Operating Leases, Rent Expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 241,004 | $ 224,349 | $ 638,398 | $ 597,103 |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in Shares) | shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 836,534 | 571,533 | 836,534 | 571,533 |  |  |  |
Share Price (in Dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 1.74 |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in Shares) | shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 35,000 |  |  |  |  |
Restricted Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 12 - Commitments and Contingencies (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Allocated Share-based Compensation Expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 30,000 |  |  |  |  |
President [Member] | Restricted Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 12 - Commitments and Contingencies (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Restricted Stock Award, Gross (in Shares) | shares |  |  |  |  |  |  | 300,000 |  |  |  | 100,000 |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Value, Restricted Stock Award, Gross |  |  |  |  |  |  | $ 360,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Chief Executive Officer [Member] | Restricted Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 12 - Commitments and Contingencies (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Restricted Stock Award, Gross (in Shares) | shares |  |  |  |  |  |  |  |  |  |  | 100,000 |  |  |  |  |  |  |  |  |  |  |
Chief Financial Officer [Member] | Restricted Stock [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 12 - Commitments and Contingencies (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share Price (in Dollars per share) | $ / shares |  |  |  |  |  |  | $ 1.20 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Diamond Bar [Member] | Land, Buildings and Improvements [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 12 - Commitments and Contingencies (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lessee, Operating Lease, Term of Contract |  |  |  |  |  |  |  |  |  |  |  |  | 5 years |  |  |  |  |  |  |  |  |
Lessee, Operating Lease, Renewal Term |  |  |  |  |  |  |  |  |  |  |  |  | 6 years |  |  |  |  |  |  | 36 months |  |
Operating Leases, Rent Expense, Minimum Rentals |  |  |  |  |  |  |  |  |  |  |  |  | $ 42,000 |  |  |  |  |  |  |  |  |
Operating lease, annual rent expense increase |  |  |  |  |  |  |  |  |  |  |  |  | 3.00% |  |  |  |  |  |  |  |  |
Diamond Bar [Member] | Building [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 12 - Commitments and Contingencies (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Rental Income, Nonoperating |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 11,330 | $ 16,200 | 47,330 | $ 48,600 |  |  |  |
Diamond Bar [Member] | Building [Member] | President [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 12 - Commitments and Contingencies (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lessee, Operating Lease, Renewal Term |  |  |  |  |  |  |  |  |  | 1 year |  |  |  |  |  |  |  |  |  |  |  |
Operating Leases, Rent Expense, Minimum Rentals |  |  |  |  |  |  |  |  |  | $ 34,561 |  |  |  |  |  |  |  |  |  |  |  |
Operating Leases, Rent Expense |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 17,281 | $ 16,458 | 32,916 | $ 34,561 |  |  |  |
Bright Swallow International Group Limited [Member] | Land, Buildings and Improvements [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 12 - Commitments and Contingencies (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Lessee, Operating Lease, Term of Contract |  |  |  |  |  |  |  | 2 years | 2 years |  |  |  |  |  |  |  |  |  |  |  | 2 years | 2 years
Operating Leases, Rent Expense, Minimum Rentals |  |  |  |  |  |  |  | $ 2,560 | $ 20,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Employment Agreement [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 12 - Commitments and Contingencies (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Commitments, Description |  |  |  |  |  | entered into one-year employment agreements, effective as of November 11, 2015, with Mr. Ya Ming (Jeffrey) Wong and Mr. Yuen Ching (Sammy) Ho to serve as the Company’s CEO and CFO |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Employment Agreement [Member] | President [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 12 - Commitments and Contingencies (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Commitments, Description |  |  |  |  |  |  |  |  |  |  |  |  |  | Company entered into an amended and restated employment agreement with Thanh H. Lam to serve as the Company’s president for a five-year term. |  |  |  |  |  |  |  |
Salary and Wage, Officer, Excluding Cost of Good and Service Sold |  |  | $ 100,000 | $ 80,000 |  |  |  |  |  |  |  |  |  | $ 80,000 |  |  |  |  |  |  |  |
Stock Issued During Period, Shares, Share-based Compensation, Gross (in Shares) | shares |  |  |  |  |  |  |  |  |  |  |  |  |  | 200,000 |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period (in Shares) | shares |  |  |  |  |  |  |  |  |  |  |  |  |  | 50,000 |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period |  |  |  |  |  |  |  |  |  |  |  |  |  | 3 years |  |  |  |  |  |  |  |
Share Price (in Dollars per share) | $ / shares |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 3.82 |  |  |  |  |  |  |  |
Employment Agreement [Member] | Chief Executive Officer [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 12 - Commitments and Contingencies (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Salary and Wage, Officer, Excluding Cost of Good and Service Sold |  |  |  |  |  | $ 100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Non-Option Equity Instruments, Forfeitures (in Shares) | shares |  |  |  |  | 25,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Employment Agreement [Member] | Chief Financial Officer [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 12 - Commitments and Contingencies (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Salary and Wage, Officer, Excluding Cost of Good and Service Sold |  | $ 50,000 |  |  |  | $ 80,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross (in Shares) | shares |  | 35,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Employment Agreement [Member] | Share-based Compensation Award, Tranche One [Member] | President [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 12 - Commitments and Contingencies (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in Shares) | shares |  |  |  |  |  |  |  |  |  |  |  |  |  | 50,000 |  |  |  |  |  |  |  |
Employment Agreement [Member] | Share-based Compensation Award, Tranche Two [Member] | President [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 12 - Commitments and Contingencies (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in Shares) | shares |  |  |  |  |  |  |  |  |  |  |  |  |  | 50,000 |  |  |  |  |  |  |  |
Employment Agreement [Member] | Share-based Compensation Award, Tranche Three [Member] | President [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 12 - Commitments and Contingencies (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number (in Shares) | shares |  |  |  |  |  |  |  |  |  |  |  |  |  | 50,000 |  |  |  |  |  |  |  |
Employment Agreement Renew [Member] | Chief Executive Officer [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 12 - Commitments and Contingencies (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other Commitments, Description | five |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Salary and Wage, Excluding Cost of Good and Service Sold | $ 100,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Monthly Sublease Income [Member] | Diamond Bar [Member] | Building [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Note 12 - Commitments and Contingencies (Details) [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sublease Income |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 6,000 |  |  |  |  |

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- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5047-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -URI http://asc.fasb.org/extlink&oid=115993241&loc=d3e301413-122809 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition A general description of the nature of the existing leasing arrangements of a lessor for all operating leases including, but not limited to: (1) guarantees or indemnities; (2) restrictions imposed by lease arrangements; (3) unusual provisions or conditions; (4) contingent rentals; and (5) lease expiration dates. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=84164561&loc=d3e37045-112695 + Details
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- Definition Amount of rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References No definition available. + Details
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- Definition Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 842 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a)(3) -URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980 + Details
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- Definition Amount of expense for salary and wage arising from service rendered by officer. Excludes allocated cost, labor-related nonsalary expense, and direct and overhead labor cost included in cost of good and service sold. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(4)) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 + Details
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- Definition This element represents the payments that the lessee is obligated to make or can be required to make in connection with a property under the terms of an agreement classified as an operating lease, excluding contingent rentals and a guarantee by the lessee of the lessor's debt and the lessee's obligation to pay (apart from the rental payments) executory costs such as insurance, maintenance, and taxes. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=77902758&loc=d3e41499-112717 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 25 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77910348&loc=d3e34039-112682 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 10 -Section 55 -Paragraph 40 -Subparagraph (Note 3) -URI http://asc.fasb.org/extlink&oid=82846649&loc=d3e38371-112697 + Details
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- Definition Income earned by providing the use of assets to an outside party in exchange for a payment or series of payments that is nonoperating in nature. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.7) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 + Details
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- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(iii)(2) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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- Definition Number of shares under non-option equity instrument agreements that were cancelled as a result of occurrence of a terminating event. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(iv)(3) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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