| 5. Acquisitions (Details - Pro forma information) - Vintage Stock Inc [Member] - USD ($) | 12 Months Ended | |
|---|---|---|
| Sep. 30, 2017 | Sep. 30, 2016 | |
| Net revenue | $ 76,133,061 | $ 65,493,122 | 
| Gross profit | 43,735,263 | 37,482,534 | 
| Operating income | 11,167,940 | 11,674,745 | 
| Net income | $ 5,517,942 | $ 3,285,387 | 
| Earnings per basic common share | $ 2.50 | $ 1.17 | 
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- Definition The pro forma gross profit for a period as if the business combination or combinations had been completed at the beginning of the period. No definition available. 
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- Definition The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition Amount after tax of pro forma income from continuing operations as if the business combination had been completed at the beginning of a period. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Definition The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
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- Details 
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