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Revolving Credit Facility [Member] Cancelled (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Fair Value Measurements Fair Value Measurement, Policy [Policy Text Block] Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Common stock outstanding (in shares) Beginning balance (in shares) Ending balance (in shares) Common Stock, Shares, Outstanding Award Timing Disclosures [Line Items] Net loss per share attributable to common stockholders, diluted(in dollars per share) Earnings Per Share, Diluted Entity Current Reporting Status Entity Current Reporting Status Net cash provided by financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Interim Period, Costs 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[Abstract] Repurchase of common stock from KCK Ltd. 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Statement [Table] Proceeds from At-the-Market offering, net of sales commission Proceeds from Issuance Initial Public Offering Restatement Determination Date: Restatement Determination Date [Axis] MidCap Agreement MidCap Agreement [Member] MidCap Agreement Interest income Investment Income, Interest Vested and exercisable (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price Indemnification liability accrued for officers and directors Indemnification Liability, Officers and Directors Indemnification Liability, Officers and Directors Net loss and comprehensive loss from continuing operations Net loss from continuing operations attributable to common stockholders Income (Loss) from Continuing Operations, Net of Tax, Attributable to Parent Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block]