| 9. Notes payable, related parties (Details Narrative) - USD ($) | 12 Months Ended | |
|---|---|---|
| Sep. 30, 2018 | Sep. 30, 2017 | |
| Loan outstandings | $ 5,821,507 | $ 2,000,000 | 
| Mezzanine Loan [Member] | ||
| Loan maximum borrowing amount | 7,000,000 | |
| Loan outstandings | $ 2,000,000 | $ 2,000,000 | 
| Maturity date | Jan. 31, 2021 | |
| Interest rate | 12.50% | |
| ApplianceSmart Note [Member] | ||
| Loan maximum borrowing amount | $ 6,500,000 | |
| Original principal amount | 3,919,494 | |
| Loan outstandings | 3,821,507 | |
| Cash paid puchase price | $ 2,580,506 | |
| Maturity date | Apr. 01, 2021 | |
| Interest rate | 5.00% | 
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- Definition Face (par) amount of debt instrument at time of issuance. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition Contractual interest rate for funds borrowed, under the debt agreement. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition Date when the debt instrument is scheduled to be fully repaid, in CCYY-MM-DD format. Reference 1: http://www.xbrl.org/2003/role/disclosureRef 
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- Definition Amount of the required periodic payments applied to principal. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition The amount for notes payable (written promise to pay), due to related parties. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition Cash inflow representing an adjustment to the purchase price of a previous acquisition. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef 
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- Details 
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- Details 
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