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operating lease liabilities Present value of future lease payments (lease liability) Operating Lease, Liability Litigation Status [Axis] Litigation Status [Axis] Silver Private Holdings I, LLC Silver Private Holdings I, LLC [Member] Silver Private Holdings I, LLC [Member] Basis of Presentation and Consolidation Basis of Presentation and Significant Accounting Policies [Text Block] Accounts receivable, net Increase (Decrease) in Accounts Receivable Debt Instrument [Line Items] Debt Instrument [Line Items] Series A Convertible Participating Perpetual Preferred Stock, $0.0001 par value; 10,000 shares authorized; 242 shares issued and outstanding at September 30, 2020 Temporary Equity, Carrying Amount, Attributable to Parent Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Total stockholders’ equity Beginning balance Ending balance Stockholders' Equity Attributable to Parent Duration of services agreement Duration of Customer Contract Duration of 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Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value Schedule of changes in fair value of Level 3 Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Summary of interest expense Schedule of Long-term Debt Instruments [Table Text Block] Contract liabilities, beginning balance Contract liabilities, ending balance Contract with Customer, Liability Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Table] Issuance of common stock on exercise of options Stock Issued During Period, Value, Stock Options Exercised Deferred income taxes Deferred Income Tax Expense (Benefit) Fair market value of transaction, aggregate Fair Market Value of Aggregate Transactions, Approval Threshold Under EBITDA Non-Compliance Fair Market Value of Aggregate Transactions, Approval Threshold Under EBITDA Non-Compliance 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