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Nature of the Business and Operations (Details) - USD ($) | 1 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 28, 2018 | Aug. 31, 2017 | Mar. 31, 2017 | Dec. 31, 2018 | Dec. 31, 2017
Nature of the Business and Operations (Textual) |  |  |  |  |
Net loss (including noncontrolling interests) |  |  |  | $ (3,060,000) | $ (4,705,000)
Accumulated deficit |  |  |  | (185,222,000) | (183,745,000)
Net cash used in operating activities |  |  |  | (2,859,000) | (5,581,000)
Net proceeds from issuance of common stock |  |  |  | $ 4,620,000 | $ 79,079,000
Shelf registration statement, expire date |  |  | Mar. 24, 2020 |  |
Aggregate of common stock offering price |  |  | $ 20,000,000 |  |
Securities Purchase Agreement [Member] |  |  |  |  |
Nature of the Business and Operations (Textual) |  |  |  |  |
Issuance of common stock | 2,940,767 | 975,000 |  |  |
Net proceeds from issuance of common stock | $ 4,600,000 | $ 9,100,000 |  |  |
Shares price per share | $ 1.60 | $ 10.00 |  |  |
Warrant issued to purchase shares of common stock |  | 325,000 |  |  |
Description of warrants |  | The 2017 Warrants became exercisable on August 8, 2018 and will expire on August 8, 2020. |  |  |
Proceeds from issuance of warrants |  | $ 9,750,000 |  |  |
Aggregate of common stock offering price |  | $ 6,500,000 |  |  |
Purchased common stock in private placement | $ 2,000,000 |  |  |  |
Percentage of beneficial owner | 18.00% |  |  |  |
Common stock at an exercise price |  | $ 20.00 |  |  |

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