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Note 12 - Related Party Transactions (Details Textual) |  |  |  |  | 3 Months Ended | 6 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Oct. 13, 2018 USD ($) | Jul. 31, 2017 USD ($) | May 26, 2017 USD ($) ft² | Jan. 09, 2013 USD ($) ft² | Jun. 30, 2020 USD ($) | Jun. 30, 2019 USD ($) | Jun. 30, 2020 USD ($) | Jun. 30, 2019 USD ($) | Dec. 31, 2017 USD ($) | Mar. 31, 2020 USD ($) | Aug. 02, 2017 USD ($)
Lessee, Operating Lease, Liability, to be Paid, Total |  |  |  |  | $ 3,005,333 |  | $ 3,005,333 |  |  |  |
Leasehold Improvements and Furniture and Fixtures [Member] |  |  |  |  |  |  |  |  |  |  |
Impairment of Long-Lived Assets to be Disposed of |  |  |  |  |  |  |  |  | $ 100,000 |  |
Outside Counsel [Member] |  |  |  |  |  |  |  |  |  |  |
Legal Fees |  |  |  |  | 184,000 | $ 122,000 | 303,000 | $ 235,000 |  |  |
Accounts Payable, Related Parties |  |  |  |  | 106,000 |  | 106,000 |  |  |  |
Dr. Eric A. Rose [Member] | Consulting Agreement [Member] |  |  |  |  |  |  |  |  |  |  |
Accounts Payable, Related Parties |  |  |  |  | 50,000 |  | 50,000 |  |  |  |
Consulting Agreement, Term (Year) | 2 years |  |  |  |  |  |  |  |  |  |
Related Party Transaction, Annual Amount | $ 200,000 |  |  |  |  |  |  |  |  |  |
Related Party Transaction, Expenses from Transactions with Related Party |  |  |  |  | $ 50,000 |  | $ 100,000 |  |  |  |
MacAndrews and Forbes Incorporated [Member] | The New HQ Lease [Member] |  |  |  |  |  |  |  |  |  |  |
Lessee, Operating Lease, Term of Contract (Year) |  |  | 10 years |  |  |  |  |  |  |  |
Area of Real Estate Property (Square Foot) | ft² |  |  | 3,200 |  |  |  |  |  |  |  |
Monthly Rent During Initial Period |  |  | $ 25,333 |  |  |  |  |  |  |  |
Monthly Rent, Initial Period (Month) |  |  | 63 months |  |  |  |  |  |  |  |
Monthly Rent After Initial Period |  |  | $ 29,333 |  |  |  |  |  |  |  |
Monthly Facility Fee, Second Year |  |  | $ 3,333 |  |  |  |  |  |  |  |
Monthly Facility Fee, Yearly Rate Increase After Second Year |  |  | 5.00% |  |  |  |  |  |  |  |
Monthly Facility Fee, Final Year |  |  | $ 4,925 |  |  |  |  |  |  |  |
Lessee, Operating Lease, Liability, to be Paid, Total |  |  |  |  |  |  |  |  |  |  | $ 900,000
MacAndrews and Forbes Incorporated [Member] | The Old HQ Sublease [Member] |  |  |  |  |  |  |  |  |  |  |
Area of Real Estate Property (Square Foot) | ft² |  |  |  | 6,676 |  |  |  |  |  |  |
Monthly Rent During Initial Period |  |  |  | $ 60,000 |  |  |  |  |  |  |
Monthly Rent After Initial Period |  |  |  | $ 63,400 |  |  |  |  |  |  |
Lessee, Operating Lease, Liability, Estimate to be Paid Had No Changes Occurred |  |  |  |  |  |  |  |  |  | $ 2,400,000 |
Business Exit Costs |  |  |  |  |  |  |  |  | $ 1,100,000 |  |
MacAndrews and Forbes Incorporated [Member] | The Replacement M&F Sublease [Member] |  |  |  |  |  |  |  |  |  |  |
Rent Concession Period (Month) |  | 2 months |  |  |  |  |  |  |  |  |
Monthly Rent, First Twelve Months |  | $ 36,996 |  |  |  |  |  |  |  |  |
Monthly Rent, Year Two |  | 37,831 |  |  |  |  |  |  |  |  |
Monthly Rent, Thereafter |  | $ 38,665 |  |  |  |  |  |  |  |  |
MacAndrews and Forbes Incorporated [Member] | The Old HQ Sublease Termination Agreement [Member] |  |  |  |  |  |  |  |  |  |  |
Lessee, Operating Lease, Liability, to be Paid, Total |  |  |  |  |  |  |  |  |  |  | 1,100,000
MacAndrews and Forbes Incorporated [Member] | The New HQ Lease and Old HQ Sublease Termination Agreements [Member] |  |  |  |  |  |  |  |  |  |  |
Lessee, Operating Lease, Liability, to be Paid, Total |  |  |  |  |  |  |  |  |  |  | $ 2,000,000.0

X
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- Definition The estimated amount of lessee's undiscounted obligation for lease payment for operating lease had no changes occurred to the operating lease arrangement during the term of the agreement. + References No definition available. + Details
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- Definition The amount of the monthly facility fee during the final year of the lease term. + References No definition available. + Details
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- Definition The amount of the monthly facility fee during the second year of the lease term. + References No definition available. + Details
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