Shareholders' Equity (Details 3) - Stock Options [Member] - USD ($)		6 Months Ended	12 Months Ended
		Jun. 30, 2017	Dec. 31, 2016
Class of Stock [Line Items]
Number of Shares Underlying Options, Outstanding, Beginning		12,250	12,250
Number of Shares Underlying Options, Granted
Number of Shares Underlying Options, Exercised
Number of Shares Underlying Options, Expired
Number of Shares Underlying Options, Outstanding, Ending		12,250	12,250
Number of Shares Underlying Options, Outstanding and Exercisable		2,722
Weighted Average Exercise Price Outstanding, Beginning balance		$ 19.35
Weighted Average Exercise Price, Granted
Weighted Average Exercise Price, Exercised
Weighted Average Exercise Price, Expired
Weighted Average Exercise Price Outstanding, Ending balance		19.35	$ 19.35
Weighted Average Exercise Price, Outstanding and Exercisable		19.35
Weighted Average Grant Date Fair Value Outstanding, Beginning balance		4.78
Weighted Average Grant Date Fair Value, Granted
Weighted Average Grant Date Fair Value, Exercised
Weighted Average Grant Date Fair Value, Expired
Weighted Average Grant Date Fair Value Outstanding, Ending balance		4.78	$ 4.78
Weighted Average Grant Date Fair Value, Outstanding and Exercisable		$ 4.78
Weighted Average Remaining Contractual Life, Outstanding		4 years 4 months 6 days	4 years 10 months 3 days
Weighted Average Remaining Contractual Life, Outstanding and Exercisable		4 years 4 months 6 days
Aggregate Intrinsic Value, Outstanding	[1]
Aggregate Intrinsic Value, Outstanding and Exercisable	[1]

[1] The aggregate intrinsic value is based on the $1.65 closing price as of June 30, 2017 for the Company's Common Stock.