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Goodwill - Goodwill Reconciliation (Details) - USD ($) | 12 Months Ended
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Sep. 30, 2020 | Sep. 30, 2019
Business Acquisition [Line Items] |  |
Goodwill purchase accounting adjustments | $ 100,000 | $ 0
GIROXX Gmbh [Member] |  |
Business Acquisition [Line Items] |  |
Remaining excess allocated to goodwill | 2,300,000 |
UOB Bullion and Futures [Member] |  |
Business Acquisition [Line Items] |  |
Remaining excess allocated to goodwill | $ 1,100,000 |

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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=121556970&loc=d3e13816-109267 + Details
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- Definition Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=116868678&loc=d3e961-128460 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=121556970&loc=d3e13816-109267 + Details
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- Details
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