Stock options granted under the 2006 and 2015 Plans are exercisable over a maximum term of ten years from the date of grant, vest in various installments over a one to four-year period and have exercise prices reflecting the market value of the shares of common stock on the date of grant.

Aggregate shares of common stock, shares

30,000

210,000

Stock-Based Compensation (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2015
Stock-Based Compensation (Textual)
Share compensation expense		$ 29
Term of stock options description		Stock options granted under the 2006 and 2015 Plans are exercisable over a maximum term of ten years from the date of grant, vest in various installments over a one to four-year period and have exercise prices reflecting the market value of the shares of common stock on the date of grant.
Employee Stock Option [Member]
Stock-Based Compensation (Textual)
Number of shares, options granted
2015 Plan [Member] \| Stock Options [Member] \| Employee Stock Option [Member]
Stock-Based Compensation (Textual)
Aggregate shares of common stock, shares	30,000		210,000