| 11. Warrants (Details - Warrants Outstanding) - Warrants [Member] - USD ($) | 12 Months Ended | |
|---|---|---|
| Sep. 30, 2018 | Sep. 30, 2017 | |
| Number of units | ||
| Outstanding, beginning of period | 118,029 | 118,029 | 
| Outstanding, end of period | 118,029 | 118,029 | 
| Exercisable, end of period | 118,029 | 118,029 | 
| Weighted Average Exercise Price | ||
| Outstanding, beginning of period | $ 20.80 | $ 20.80 | 
| Outstanding, end of period | 20.80 | 20.80 | 
| Exercisable, end of period | $ 20.80 | $ 20.80 | 
| Weighted Average Remaining Contractual Term (in years) | ||
| Outstanding | 1 year 4 months 6 days | 10 months 28 days | 
| Exercisable | 1 year 4 months 6 days | 10 months 28 days | 
| Intrinsic value outstanding, end of period | $ 2,855,734 | $ 4,862,230 | 
| Exercisable, end of period | 2,855,734 | 4,862,230 | 
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- Definition Number of warrants No definition available. 
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- Definition Exercisable, end of period No definition available. 
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- Definition Exercisable, end of period No definition available. 
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- Definition Intrinsic value exercisable No definition available. 
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- Definition Weighted Average Remaining Contractual Term (in years) exercisable No definition available. 
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- Definition Weighted Average Exercise Price No definition available. 
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- Definition Weighted Average Remaining Contractual Term (in years) No definition available. 
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- Definition Exercise price per share or per unit of warrants or rights outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition Number of warrants or rights outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition Weighted average remaining contractual term for equity-based awards excluding options, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef 
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- Definition Intrinsic value of equity-based compensation awards outstanding. Excludes stock and unit options. No definition available. 
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- Details 
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