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Stockholders' Equity (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Sep. 30, 2020 | Jun. 30, 2020 | Mar. 31, 2020 | Dec. 31, 2019 | Sep. 30, 2019 | Jun. 30, 2019 | Mar. 31, 2019
Net Investment Income [Line Items] |  |  |  |  |  |  |
Issuance of Preferred Shares for cash | $ 13,530 |  |  |  |  |  |
Series C-2 Preferred Stock issued for repayment of short-term borrowings and accrued interest | 516 |  |  |  |  |  |
Series B Preferred Stock |  |  |  |  |  |  |
Net Investment Income [Line Items] |  |  |  |  |  |  |
Beginning balances |  |  |  |  |  |  |
Beginning balances, shares |  |  |  |  | 80,000 | 82,000 | 82,000
Conversion of Series B Preferred Stock to common stock |  |  |  |  |  |  |
Conversion of Series B Preferred Stock to common stock, shares |  |  |  |  | (80,000) | (2,000) |
Issuance of Preferred Shares for cash |  |  |  |  |  |  |
Issuance of Preferred Shares for cash, shares |  |  |  |  |  |  |
Conversion of preferred stock |  |  |  |  |  |  |
Conversion of Preferred Shares to common stock |  |  |  |  |  |  |
Ending balances |  |  |  |  |  |  |
Ending balances, shares |  |  |  |  |  | 80,000 | 82,000
Series C-1 Preferred Shares [Member] |  |  |  |  |  |  |
Net Investment Income [Line Items] |  |  |  |  |  |  |
Beginning balances |  |  |  |  |  |  |
Beginning balances, shares |  |  |  |  |  |  |
Conversion of Series B Preferred Stock to common stock |  |  |  |  |  |  |
Conversion of Series B Preferred Stock to common stock, shares |  |  |  |  |  |  |
Issuance of Preferred Shares for cash | $ 365 |  |  |  |  |  |
Issuance of Preferred Shares for cash, shares | 365,000 |  |  |  |  |  |
Conversion of preferred stock | $ (365) |  |  |  |  |  |
Conversion of Preferred Shares to common stock | (365,000) |  |  |  |  |  |
Ending balances |  |  |  |  |  |  |
Ending balances, shares |  |  |  |  |  |  |
Series C-2 Preferred Shares [Member] |  |  |  |  |  |  |
Net Investment Income [Line Items] |  |  |  |  |  |  |
Beginning balances |  |  |  |  |  |  |
Beginning balances, shares |  |  |  |  |  |  |
Conversion of Series B Preferred Stock to common stock |  |  |  |  |  |  |
Conversion of Series B Preferred Stock to common stock, shares |  |  |  |  |  |  |
Issuance of Preferred Shares for cash | $ 3,567 |  |  |  |  |  |
Issuance of Preferred Shares for cash, shares | 3,567,000 |  |  |  |  |  |
Series C-2 Preferred Stock issued for repayment of short-term borrowings and accrued interest | $ 517 |  |  |  |  |  |
Series C-2 Preferred Stock issued for repayment of short-term borrowings and accrued interest, shares | 517,000 |  |  |  |  |  |
Conversion of preferred stock | $ (4,084) |  |  |  |  |  |
Conversion of Preferred Shares to common stock | (4,084,000) |  |  |  |  |  |
Ending balances |  |  |  |  |  |  |
Ending balances, shares |  |  |  |  |  |  |

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