Related Party Transactions - Additional Information (Detail) - USD ($) |
1 Months Ended | 12 Months Ended | ||||
|---|---|---|---|---|---|---|
May. 31, 2015 |
Mar. 17, 2015 |
Feb. 17, 2015 |
Sep. 30, 2014 |
Dec. 31, 2015 |
Dec. 31, 2014 |
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| Related Party Transaction [Line Items] | ||||||
| Costs and Expenses, Related Party | $ 24,000 | $ 141,000 | ||||
| Agreement Description Terms | (i) issue annually to the Company, on the anniversary date of the Founders Agreement, shares of Checkpoint common stock equal to two and one half percent (2.50%) of the fully-diluted outstanding equity of Checkpoint at the time of issuance; (ii) pay an equity fee in shares of Checkpoint common stock, payable within five (5) business days of the closing of any equity or debt financing for Checkpoint or any of its respective subsidiaries that occurs after the effective date of the Founders Agreement and ending on the date when the Company no longer has majority voting control in Checkpoints voting equity, equal to 2.25% of the gross amount of any such equity or debt financing; and (iii) pay a cash fee equal to 4.5% of its annual net sales, payable on an annual basis, within 90 days of the end of each calendar year. In the event of a change in control (as defined in the Founders Agreement), the Company will pay a one-time change in control fee equal to five times (5x) the product of (i) monthly net sales for the 12 months immediately preceding the change in control and (ii) 4.5%. | issue annually to the Company, on the anniversary date of the Founders Agreement, shares of common stock equal to 2.25% of the fully-diluted outstanding equity of Avenue at the time of issuance; (ii) pay an equity fee in shares of Avenue common stock, payable within five (5) business days of the closing of any equity or debt financing for Avenue or any of its respective subsidiaries that occurs after the effective date of the Founders Agreement and ending on the date when Fortress no longer has majority voting control in Avenues voting equity, equal to two and one half percent (2.50%) of the gross amount of any such equity or debt financing; and (iii) pay a cash fee equal to four and one half percent (4.5%) of our annual net sales, payable on an annual basis, within ninety (90) days of the end of each calendar year. In the event of a change in control (as it is defined in the Founders Agreement), the Company will pay a one-time change in control fee equal to five (5x) times the product of (i) monthly net sales for the twelve (12) months immediately preceding the change in control and (ii) four and one-half percent (4.5%). | ||||
| Working Capital | $ 500,000 | |||||
| Chief Executive Officer [Member] | ||||||
| Related Party Transaction [Line Items] | ||||||
| Interest own in percent by principal stockholder or director | 12.20% | 12.40% | ||||
| Chord Advisors, LLC [Member] | ||||||
| Related Party Transaction [Line Items] | ||||||
| Related Party Transaction, Expenses from Transactions with Related Party | $ 10,000 | |||||
| Cb Pharma Acquisition Corp [Member] | ||||||
| Related Party Transaction [Line Items] | ||||||
| Working Capital | $ 500,000 | |||||
| TG Therapeutics, Inc [Member] | ||||||
| Related Party Transaction [Line Items] | ||||||
| Increase (Decrease) in Accounts Receivable | 74,100 | |||||
| Accounts Receivable, Net, Total | 36,000 | |||||
| TG Therapeutics, Inc [Member] | Cb Pharma Acquisition Corp [Member] | ||||||
| Related Party Transaction [Line Items] | ||||||
| Payments for Fees | 200,000 | $ 0 | ||||
| Checkpoint [Member] | Chord Advisors, LLC [Member] | ||||||
| Related Party Transaction [Line Items] | ||||||
| Related Party Transaction, Expenses from Transactions with Related Party | 7,500 | |||||
| OPPM [Member] | ||||||
| Related Party Transaction [Line Items] | ||||||
| Reimbursement Cost Paid to Related Party | $ 54,200 | |||||
| Proceeds from Related Party Agreement | 101,200 | |||||
| Due from Related Parties | $ 104,000 | |||||
| Collaboration Agreement with TGTX [Member] | ||||||
| Related Party Transaction [Line Items] | ||||||
| Underwriting Commission Incurred | 25,000 | |||||
| Payments for Fees | 500,000 | |||||
| Collaboration Agreement with TGTX [Member] | TG Therapeutics, Inc [Member] | ||||||
| Related Party Transaction [Line Items] | ||||||
| Payments for Fees | $ 600,000 | $ 0 | ||||
| Management Services Agreement [Member] | ||||||
| Related Party Transaction [Line Items] | ||||||
| Annual Consulting Fee | $ 500,000 | $ 500,000 | ||||
| Increase in Annual Consulting Fee | 1,000,000 | 1,000,000 | ||||
| Excess In Net Assets Value | 100,000,000 | 100,000,000 | ||||
| Management Services Agreement [Member] | Checkpoint [Member] | ||||||
| Related Party Transaction [Line Items] | ||||||
| Long-term Debt, Gross | $ 2,800,000 | |||||
| Management Services Agreement [Member] | Founders Agreement [Member] | ||||||
| Related Party Transaction [Line Items] | ||||||
| Debt Issuance Cost | $ 3,000,000 | |||||
| Avenue [Member] | Chord Advisors, LLC [Member] | ||||||
| Related Party Transaction [Line Items] | ||||||
| Related Party Transaction, Expenses from Transactions with Related Party | $ 5,000 | |||||