Subsequent events	3 Months Ended
Mar. 31, 2019
Subsequent Events [Abstract]
Subsequent events	Note 13 – Subsequent events On May 6, 2019, the Listing Qualifications Staff of The Nasdaq Stock Market LLC notified the Company that the closing bid price of the Company’s common stock had, for 30 consecutive business days preceding the date of such notice, been below the $1.00 per share minimum required for continued listing on The Nasdaq Capital Market pursuant to Nasdaq Marketplace Rule 5550(a)(2). In accordance with Nasdaq Marketplace Rule 5810(c)(3)(A), the Company was provided 180 calendar days, or until November 4, 2019, to regain compliance. If at any time before November 4, 2019, the closing bid price of the Common Stock is at least $1 for a minimum of ten (10) consecutive trading days, the Company can regain compliance. The Company intends to promptly evaluate various courses of action to regain compliance. However, there can be no assurance that the Company will be able to regain compliance.

Subsequent events

3 Months Ended

Mar. 31, 2019

Note 13 – Subsequent events

On May 6, 2019, the Listing Qualifications Staff of The Nasdaq Stock Market LLC notified the Company that the closing bid price of the Company’s common stock had, for 30 consecutive business days preceding the date of such notice, been below the $1.00 per share minimum required for continued listing on The Nasdaq Capital Market pursuant to Nasdaq Marketplace Rule 5550(a)(2). In accordance with Nasdaq Marketplace Rule 5810(c)(3)(A), the Company was provided 180 calendar days, or until November 4, 2019, to regain compliance. If at any time before November 4, 2019, the closing bid price of the Common Stock is at least $1 for a minimum of ten (10) consecutive trading days, the Company can regain compliance.

The Company intends to promptly evaluate various courses of action to regain compliance. However, there can be no assurance that the Company will be able to regain compliance.