000 - Document - Document And Entity Information link:calculationLink link:definitionLink link:presentationLink 001 - Statement - Consolidated Balance Sheets link:calculationLink link:definitionLink link:presentationLink 002 - Statement - Consolidated Balance Sheets (Parentheticals) link:calculationLink link:definitionLink link:presentationLink 003 - Statement - Consolidated Statements of Net Loss link:calculationLink link:definitionLink link:presentationLink 004 - Statement - Consolidated Statement of Stockholders' Equity link:calculationLink link:definitionLink link:presentationLink 005 - Statement - Consolidated Statements of Cash Flows link:calculationLink link:definitionLink link:presentationLink 995550 - Disclosure - Note 1 - Organization link:calculationLink link:definitionLink link:presentationLink 995551 - Disclosure - Note 2 - Summary of Significant Accounting Policies link:calculationLink link:definitionLink link:presentationLink 995552 - Disclosure - Note 3 - Discontinued Operations link:calculationLink link:definitionLink link:presentationLink 995553 - Disclosure - Note 4 - Contracts With Customers link:calculationLink link:definitionLink link:presentationLink 995554 - Disclosure - Note 5 - Digital Assets link:calculationLink link:definitionLink link:presentationLink 995555 - Disclosure - Note 6 - Fair Value Measurements link:calculationLink link:definitionLink link:presentationLink 995556 - Disclosure - Note 7 - Property and Equipment, Net link:calculationLink link:definitionLink link:presentationLink 995557 - Disclosure - Note 8 - Leases link:calculationLink link:definitionLink link:presentationLink 995558 - Disclosure - Note 9 - Contingencies link:calculationLink link:definitionLink link:presentationLink 995559 - Disclosure - Note 10 - Note Payable link:calculationLink link:definitionLink link:presentationLink 995560 - Disclosure - Note 11 - Stockholders' Equity link:calculationLink link:definitionLink link:presentationLink 995561 - Disclosure - Note 12 - Stock-Based Compensation link:calculationLink link:definitionLink link:presentationLink 995562 - Disclosure - Note 13 - Related Parties link:calculationLink link:definitionLink link:presentationLink 995563 - Disclosure - Note 14 - Income Taxes link:calculationLink link:definitionLink link:presentationLink 995564 - Disclosure - Note 15 - Retirement Savings Plan link:calculationLink link:definitionLink link:presentationLink 995565 - Disclosure - Note 16 - Loss Per Share link:calculationLink link:definitionLink link:presentationLink 995566 - Disclosure - Note 17 - Segment Information link:calculationLink link:definitionLink link:presentationLink 995567 - Disclosure - Note 18 - Subsequent Events link:calculationLink link:definitionLink link:presentationLink 995568 - Disclosure - Significant Accounting Policies (Policies) link:calculationLink link:definitionLink link:presentationLink 995569 - Disclosure - Note 2 - Summary of Significant Accounting Policies (Tables) link:calculationLink link:definitionLink link:presentationLink 995570 - Disclosure - Note 3 - Discontinued Operations (Tables) link:calculationLink link:definitionLink link:presentationLink 995571 - Disclosure - Note 5 - Digital Assets (Tables) link:calculationLink link:definitionLink link:presentationLink 995572 - Disclosure - Note 6 - Fair Value Measurements (Tables) link:calculationLink link:definitionLink link:presentationLink 995573 - Disclosure - Note 7 - Property and Equipment, Net (Tables) link:calculationLink link:definitionLink link:presentationLink 995574 - Disclosure - Note 8 - Leases (Tables) link:calculationLink link:definitionLink link:presentationLink 995575 - Disclosure - Note 11 - Stockholders' Equity (Tables) link:calculationLink link:definitionLink link:presentationLink 995576 - Disclosure - Note 12 - Stock-Based Compensation (Tables) link:calculationLink link:definitionLink link:presentationLink 995577 - Disclosure - Note 14 - Income Taxes (Tables) link:calculationLink link:definitionLink link:presentationLink 995578 - Disclosure - Note 16 - Loss Per Share (Tables) link:calculationLink link:definitionLink link:presentationLink 995579 - Disclosure - Note 17 - Segment Information (Tables) link:calculationLink link:definitionLink link:presentationLink 995580 - Disclosure - Note 1 - Organization (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995581 - Disclosure - Note 2 - Summary of Significant Accounting Policies - Property Plant and Equipment Useful Life (Details) link:calculationLink link:definitionLink link:presentationLink 995582 - Disclosure - Note 3 - Discontinued Operations (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995583 - Disclosure - Note 3 - Discontinued Operations - Schedule of Disposal Groups by Balance Sheet Classification (Details) link:calculationLink link:definitionLink link:presentationLink 995584 - Disclosure - Note 3 - Discontinued Operations - Schedule of Disposal Groups Including Discontinued Operations (Details) link:calculationLink link:definitionLink link:presentationLink 995585 - Disclosure - Note 4 - Contracts With Customers (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995586 - Disclosure - Note 5 - Digital Assets (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995587 - Disclosure - Note 5 - Crypto Asset Holdings - Crypto Asset, Holding (Details) link:calculationLink link:definitionLink link:presentationLink 995588 - Disclosure - Note 5 - Digital Assets - Reconciliation of Digital Assets (Details) link:calculationLink link:definitionLink link:presentationLink 995589 - Disclosure - Note 6 - Fair Value Measurements (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995590 - Disclosure - Note 6 - Fair Value Measurements - Fair Value of Assets and Liabilities on a Recurring Basis (Details) link:calculationLink link:definitionLink link:presentationLink 995591 - Disclosure - Note 7 - Property and Equipment, Net (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995592 - Disclosure - Note 7 - Property and Equipment, Net - Schedule of Property, Plant and Equipment (Details) link:calculationLink link:definitionLink link:presentationLink 995593 - Disclosure - Note 8 - Leases (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995594 - Disclosure - Note 8 - Leases - Lease Information (Details) link:calculationLink link:definitionLink link:presentationLink 995595 - Disclosure - Note 8 - Leases - Rent Obligation (Details) link:calculationLink link:definitionLink link:presentationLink 995596 - Disclosure - Note 10 - Note Payable (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995597 - Disclosure - Note 11 - Stockholders' Equity (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995598 - Disclosure - Note 11 - Stockholders' Equity - Schedule of Warrants (Details) link:calculationLink link:definitionLink link:presentationLink 995599 - Disclosure - Note 11 - Stockholders' Equity - Warrant Valuation Assumption (Details) link:calculationLink link:definitionLink link:presentationLink 995600 - Disclosure - Note 11 - Stockholders' Equity - Schedule of Share-based Compensation Shares Authorized Under Stock Option and Warrant Plans by Exercise Price Range (Details) link:calculationLink link:definitionLink link:presentationLink 995601 - Disclosure - Note 11 - Stockholders' Equity - Disclosure of Warrant Information (Details) link:calculationLink link:definitionLink link:presentationLink 995602 - Disclosure - Note 12 - Stock-Based Compensation (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995603 - Disclosure - Note 12 - Stock-Based Compensation - Schedule of Nonvested Restricted Stock Units Activity (Details) link:calculationLink link:definitionLink link:presentationLink 995604 - Disclosure - Note 12 - Stock-Based Compensation - Schedule of Share-based Compensation (Details) link:calculationLink link:definitionLink link:presentationLink 995605 - Disclosure - Note 12 - Stock-Based Compensation - Schedule of Exercise Price Range (Details) link:calculationLink link:definitionLink link:presentationLink 995606 - Disclosure - Note 12 - Stock-Based Compensation - Schedule of Listing of Stock Options (Details) link:calculationLink link:definitionLink link:presentationLink 995607 - Disclosure - Note 13 - Related Parties (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995608 - Disclosure - Note 14 - Income Taxes (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995609 - Disclosure - Note 14 - Income Taxes - Schedule of Income Taxes Paid (Details) link:calculationLink link:definitionLink link:presentationLink 995610 - Disclosure - Note 14 - Income Taxes - Schedule of Income Tax Reconciliation (Details) link:calculationLink link:definitionLink link:presentationLink 995611 - Disclosure - Note 14 - Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) link:calculationLink link:definitionLink link:presentationLink 995612 - Disclosure - Note 15 - Retirement Savings Plan (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995613 - Disclosure - Note 16 - Loss Per Share (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995614 - Disclosure - Note 16 - Loss Per Share - Schedule of Earnings Per Share (Details) link:calculationLink link:definitionLink link:presentationLink 995615 - Disclosure - Note 16 - Loss Per Share - Schedule of Antidilutive Securities (Details) link:calculationLink link:definitionLink link:presentationLink 995616 - Disclosure - Note 17 - Segment Information (Details Textual) link:calculationLink link:definitionLink link:presentationLink 995617 - Disclosure - Note 17 - Segment Information - Segments (Details) link:calculationLink link:definitionLink link:presentationLink 995618 - Disclosure - Note 18 - Subsequent Events (Details Textual) link:calculationLink link:definitionLink link:presentationLink