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Summary of Significant Accounting Policies (Details Textual) - USD ($) | 1 Months Ended | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Dec. 22, 2017 | Dec. 31, 2018 | Dec. 31, 2017 | Feb. 28, 2019 | Sep. 05, 2018 | Dec. 31, 2016 | Aug. 29, 2015
Summary of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Depreciation, Depletion and Amortization |  | $ 272,000 | $ 245,000 |  |  |  |
Cash and Cash Equivalents, at Carrying Value |  | $ 28,918,000 | 17,116,000 | $ 26,000,000 |  | $ 19,055,000 |
Equity Method Investment, Ownership Percentage |  | 83.00% |  |  |  |  |
Accrued Liabilities |  | $ 700,000 | 700,000 |  |  |  |
Prepaid Expense |  | 46,000 | 46,000 |  |  |  |
Preferred Stock Dividends, Income Statement Impact |  | $ 243,000 | $ 73,000 |  |  |  |
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent | 35.00% | 21.00% | 21.00% |  |  |  |
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount |  | $ 0 | $ 21,555,000 |  |  |  |
Deferred Tax Assets federal And Statutory Income Tax Rate |  |  | 21.00% |  |  |  |
Operating Leases, Future Minimum Payments Due |  | 1,122,000 |  |  |  |  |
Series A and Series B Preferred Stock [Member] |  |  |  |  |  |  |
Summary of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Preferred Stock Dividends, Income Statement Impact |  | $ 9,400,000 | $ 6,900,000 |  |  |  |
Series B Preferred Stock [Member] |  |  |  |  |  |  |
Summary of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount |  | 7,966,057 |  |  |  |  |
Preferred Stock Dividends, Income Statement Impact |  | $ 11,681,000 | $ 0 |  |  |  |
Preferred Stock, Discount on Shares |  | $ 2,500,000 |  |  |  |  |
Preferred Stock Shares Converted |  | 6,562 |  |  |  |  |
Warrant [Member] |  |  |  |  |  |  |
Summary of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount |  | 18,915,850 | 915,138 |  |  |  |
Options [Member] |  |  |  |  |  |  |
Summary of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount |  | 938,982 | 358,975 |  |  |  |
Money Market Accounts [Member] |  |  |  |  |  |  |
Summary of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Cash and Cash Equivalents, at Carrying Value |  | $ 98,000 | $ 98,000 |  |  |  |
SYN Biomics [Member] |  |  |  |  |  |  |
Summary of Significant Accounting Policies [Line Items] |  |  |  |  |  |  |
Equity Method Investment, Ownership Percentage |  | 83.00% |  |  | 88.50% |  |
Noncontrolling Interest, Ownership Percentage by Parent |  | 17.00% |  |  | 11.50% |  | 8.50%

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