Amount of amortization expense attributable to debt discount (premium) and debt issuance costs.

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Exercise price per share or per unit of warrants or rights outstanding.

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Face amount or stated value per share of common stock.

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The price per share of the conversion feature embedded in the debt instrument.

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Minimum percentage of common stock price to conversion price of convertible debt instruments to determine eligibility of conversion.

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The reference rate for the variable rate of the debt instrument, such as LIBOR or the US Treasury rate and the maturity of the reference rate used, such as three months or six months LIBOR.

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The cash inflow from the issuance of a long-term debt instrument which can be exchanged for a specified amount of another security, typically the entity's common stock, at the option of the issuer or the holder.

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Senior Convertible Notes and Warrants (Details Textual)		3 Months Ended
Senior Convertible Notes and Warrants (Details Textual)	Dec. 17, 2019 USD ($) d $ / shares shares	Mar. 31, 2020 USD ($) $ / shares	Dec. 31, 2019 $ / shares
Senior Convertible Notes and Warrants
Common stock, par value \| $ / shares		$ 0.001	$ 0.001
Common Stock \| Beneficial owner
Senior Convertible Notes and Warrants
Beneficial owner of the Company’s issued and outstanding shares of Common Stock	46.60%
Senior Convertible Notes and Warrants
Senior Convertible Notes and Warrants
Issuance and sale of secured convertible notes \| $	$ 3,000
Original issue discount and issuance costs \| $	346,000
Net proceeds after original issue discount and issuance costs \| $	$ 2,654,000
Amortization of debt discount and issuance costs \| $		$ 50,000
Senior Convertible Notes and Warrants \| Common Stock
Senior Convertible Notes and Warrants
Warrants to purchase of common stock, shares \| shares	340,909
Common stock, par value \| $ / shares	$ 0.001
Senior Convertible Notes
Senior Convertible Notes and Warrants
Interest accrual at a variable rate adjusted on a quarterly basis, percent	2.50%
Published in the Wall Street Journal (New York edition) as of the beginning of such calendar quarter	Prime Rate
Senior Convertible Notes \| Greater of
Senior Convertible Notes and Warrants
Interest accrual at a variable rate adjusted on a quarterly basis, percent	5.25%
Senior Convertible Notes \| Common Stock
Senior Convertible Notes and Warrants
Senior Convertible Notes, Initial conversion price per share \| $ / shares	$ 2.11
Senior Convertible Notes, Threshold percentage of stock price trigger	120.00%
Senior Convertible Notes, Threshold consecutive trading days \| d	90
Senior Convertible Notes \| Common Stock \| Greater of
Senior Convertible Notes and Warrants
Senior Convertible Notes, Threshold percentage of stock price trigger	200.00%
Warrants \| Common Stock
Senior Convertible Notes and Warrants
Warrants, Initial exercise price per share \| $ / shares	$ 1.76