The number of warrants or rights issued during period.

No definition available.

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Represents the first customary conversion blockers under debt instrument.

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No definition available.

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Represents the second customary conversion blockers under debt instrument.

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The cash inflow associated with the amount received from entity's raising of capital via private rather than public placement, net of offering costs.

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No definition available.

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Per warrant amount of warrants issued.

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No definition available.

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Amount of noncash expense included in interest expense to amortize debt discount and premium associated with the related debt instruments. Excludes amortization of financing costs. Alternate captions include noncash interest expense.

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

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Number of securities into which each warrant or right may be converted. For example, but not limited to, each warrant may be converted into two shares.

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No definition available.

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The number of shares issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or payments in the period.

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The amount of the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period.

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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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No definition available.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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No definition available.

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Amount, after accumulated amortization, of debt discount.

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Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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The net amount of operating interest income (expense).

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The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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No definition available.

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The cash outflow for cost incurred directly with the issuance of an equity security.

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The cash inflow associated with the amount received from entity's raising of capital via private rather than public placement.

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Per share or per unit amount of equity securities issued.

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No definition available.

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Number of new stock issued during the period.

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Note 6 - Convertible Promissory Note (Details Textual) - USD ($)						12 Months Ended
	Jul. 23, 2019	Jan. 29, 2019	Aug. 28, 2018	May 18, 2018	Mar. 28, 2018	Dec. 31, 2019	Dec. 31, 2018	May 30, 2019
Gain (Loss) on Extinguishment of Debt, Total						$ (840,000)
Amortization of Debt Discount (Premium)						$ 2,349,000	$ 1,174,000
Stock Issued During Period, Shares, New Issues					60,964
Shares Issued, Price Per Share					$ 22.70
Class of Warrant or Right, Issued During Period						444,445	1,512,816
Payments of Stock Issuance Costs				$ 679,000	$ 171,000
Private Placement [Member]
Stock Issued During Period, Shares, New Issues			100,000
Shares Issued, Price Per Share			$ 1.80
Class of Warrant or Right, Issued During Period			296,500
Warrants Issued, Price Per Warrant			$ 1.70
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right			1
Class of Warrant or Right, Exercise Price of Warrants or Rights			$ 0.10
Proceeds from Issuance of Private Placement			$ 684,000
Proceeds from Issuance of Private Placement, Net			623,000
Payments of Stock Issuance Costs			$ 61,000
Convertible Debt [Member] \| Notes [Member]
Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger		90.00%
Debt Instrument, Interest Rate, Stated Percentage		24.00%
Debt Instrument, Term		1 year 180 days
Debt Instrument, Convertible, First Customary Conversion Blockers		4.99%
Debt Instrument, Convertible, Second customary conversion blockers		9.99%
Debt Instrument, Unamortized Discount, Total								$ 800,000
Convertible Debt [Member] \| Notes [Member] \| Maximum [Member]
Debt Instrument, Face Amount		$ 800,000
Debt Instrument, Convertible, Conversion Price		$ 1.80
Convertible Debt [Member] \| Notes [Member] \| Minimum [Member]
Debt Instrument, Convertible, Conversion Price		$ 0.50
Convertible Debt [Member] \| January 2019 Notes, Amendment No. 1 [Member]
Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger	90.00%
Debt Instrument, Unamortized Discount, Total						$ 556,000
Gain (Loss) on Extinguishment of Debt, Total						840,000
Long-term Debt, Fair Value	$ 1,473,000
Amortization of Debt Discount (Premium)						77,000
Debt Conversion, Original Debt, Amount						$ 432,000
Debt Conversion, Converted Instrument, Shares Issued						240,000
Interest Income (Expense), Net, Total						$ 60,000
Convertible Debt [Member] \| January 2019 Notes, Amendment No. 1 [Member] \| Maximum [Member]
Debt Instrument, Convertible, Conversion Price	$ 1.80
Convertible Debt [Member] \| January 2019 Notes, Amendment No. 1 [Member] \| Minimum [Member]
Debt Instrument, Convertible, Conversion Price	$ 0.50
Convertible Debt [Member] \| The July 2019 Note [Member]
Debt Instrument, Face Amount	$ 1,000,000
Debt Instrument, Convertible, Threshold Percentage of Stock Price Trigger	90.00%
Debt Instrument, Interest Rate, Stated Percentage	24.00%
Convertible Debt [Member] \| The July 2019 Note [Member] \| Maximum [Member]
Debt Instrument, Convertible, Conversion Price	$ 1.80
Convertible Debt [Member] \| The July 2019 Note [Member] \| Minimum [Member]
Debt Instrument, Convertible, Conversion Price	$ 0.50