Capital Stock (Textual) (Details) - USD ($) $ / shares in Units, $ in Thousands	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014
Equity [Abstract]
Stock options exercised	128,921	136,796
Weighted average exercise price of stock options exercised	$ 1.82	$ 1.34
Proceeds from exercises of stock options	$ 235	$ 180