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Goodwill Goodwill Reconciliation (Details) - USD ($) | 12 Months Ended
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Sep. 30, 2019 | Sep. 30, 2018
Business Acquisition [Line Items] |  |
Goodwill, Purchase Accounting Adjustments | $ 1,300,000 |
Goodwill, Translation and Purchase Accounting Adjustments | 0 | $ (1,300,000)
Coininvest and European Precious Metals Trading [Member] |  |
Business Acquisition [Line Items] |  |
Goodwill, Acquired During Period | 2,200,000 |
Fillmore Advisors, LLC [Member] |  |
Business Acquisition [Line Items] |  |
Goodwill, Acquired During Period | $ 1,900,000 |

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- Definition Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 + Details
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