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Loans Payable - Note 9 - Litigation Financing Note - Additional Information (Detail) - USD ($) |  | 1 Months Ended | 3 Months Ended | 12 Months Ended |
--- | --- | --- | --- | --- | ---
Jun. 14, 2019 | Jan. 31, 2020 | Sep. 30, 2019 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 06, 2019
Interest Expense |  |  |  | $ 5,360,192 | $ 3,142,280 | $ 2,727,235 |
Warrants exercise price |  |  |  | $ 0.0001 | $ 0.0001 |  | $ 0.0001
Subsequent Event [Member] | Amended and Restated International Claims Enforcement Agreement [Member] |  |  |  |  |  |  |
Litigation Settlement Loans Payable |  | $ 2,200,000 |  |  |  |  |
Litigation Settlement Loans Payable Transaction Costs |  | $ 200,000 |  |  |  |  |
Warrants exercise price |  | $ 3.99 |  |  |  |  |
Pending Litigation [Member] |  |  |  |  |  |  |
Proceeds from litigation financing receivables |  |  |  | $ 2,957,097 |  |  |
Litigation financing receivables |  |  |  | 2,957,097 |  |  |
Interest Expense |  |  | $ 369,505 | $ 369,505 |  |  |
Pending Litigation [Member] | Phase One [Member] | Proceeds One [Member] |  |  |  |  |  |  |
Description of conditions for distribution of proceeds to the claimholder and funder | first, 100.0% to the Funder, until the cumulative amount distributed to the Funder equals the total Claims Payments paid by the Funder under Phase I; |  |  |  |  |  |
Pending Litigation [Member] | Phase One [Member] | Proceeds Two [Member] |  |  |  |  |  |  |
Description of conditions for distribution of proceeds to the claimholder and funder | second, 100.0% to the Funder until the cumulative amount distributed to the Funder equals an IRR of 20% of Claims Payments paid by the Funder under Phase I (“Phase I Compensation”), per annum; and |  |  |  |  |  |
Pending Litigation [Member] | Phase One [Member] | Proceeds Three [Member] |  |  |  |  |  |  |
Description of conditions for distribution of proceeds to the claimholder and funder | thereafter, 100.0% to the Claimholder. |  |  |  |  |  |
Pending Litigation [Member] | Phase Two [Member] | Proceeds One [Member] |  |  |  |  |  |  |
Description of conditions for distribution of proceeds to the claimholder and funder | first, 100.0% to the Funder until the cumulative amount distributed to the Funder equals the total Claims Payments paid by the Funder under Phases I and II; |  |  |  |  |  |
Pending Litigation [Member] | Phase Two [Member] | Proceeds Two [Member] |  |  |  |  |  |  |
Description of conditions for distribution of proceeds to the claimholder and funder | second, 100.0% to the Funder until the cumulative amount distributed to the Funder equals an additional 300.0% of Phase I Investment Amount; plus an additional 300% of the Tranche A Committed Amount (i.e. 300.0% of $3.5 million), less any amounts remaining of the Tranche A Committed Amount that the Funder did not pay as Claims Payments; plus an additional 300.0% of the Tranche B Committed Amount (i.e. 300.0% of $1.5 million), if the Claimholder exercises the Tranche B funding option, less any amounts remaining of the Tranche B Committed Amount that the Funder did not pay as Claims Payments; |  |  |  |  |  |
Pending Litigation [Member] | Phase Two [Member] | Proceeds Three [Member] |  |  |  |  |  |  |
Description of conditions for distribution of proceeds to the claimholder and funder | third, for each $10,000 in specified fees and expenses paid by the Funder under Phase I and Phase II and any amounts over each $10,000 of the Tranche A Committed Amount and the Tranche B Committed Amount (if the Claimholder exercises the Tranche B funding option), 0.01% of the total Proceeds from any recoveries after repayment of (i) and (ii) above, to the Funder; and |  |  |  |  |  |
Pending Litigation [Member] | Phase Two [Member] | Proceeds Four [Member] |  |  |  |  |  |  |
Description of conditions for distribution of proceeds to the claimholder and funder | thereafter, 100% to the Claimholder. |  |  |  |  |  |
Poplar Falls LLC [Member] | Pending Litigation [Member] |  |  |  |  |  |  |
Claims Payment Maximum Amount | $ 6,500,000 |  |  |  |  |  |
Poplar Falls LLC [Member] | Pending Litigation [Member] | Phase One [Member] |  |  |  |  |  |  |
Claims Payment Maximum Amount | 1,500,000 |  |  |  |  |  |
Cost Of Funding The Claims For Litigation | 80,000 |  |  |  |  |  |
Poplar Falls LLC [Member] | Pending Litigation [Member] | Phase Two [Member] |  |  |  |  |  |  |
Claims Payment Maximum Amount | 5,000,000 |  |  |  |  |  |
Cost Of Funding The Claims For Litigation | 80,000 |  |  |  |  |  |
Poplar Falls LLC [Member] | Pending Litigation [Member] | Phase Two [Member] | Tranch A [Member] |  |  |  |  |  |  |
Claims amount option to request | $ 3,500,000 |  |  |  |  |  |
Period Of Time Within Which Claim Holder Shall Exercise The Option | 30 days |  |  |  |  |  |
Poplar Falls LLC [Member] | Pending Litigation [Member] | Phase Two [Member] | Tranch B [Member] |  |  |  |  |  |  |
Claims amount option to request | $ 1,500,000 |  |  |  |  |  |
Period Of Time Within Which Claim Holder Shall Exercise The Option | 45 days |  |  |  |  |  |

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