Stock Option Plans (Details 1) - $ / shares shares in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Employee Plan 2005 [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Options Outstanding, Number	1,464
Options Outstanding, Weighted-Average Remaining Contractual Life in Years	5 years 3 months 18 days
Options Outstanding, Weighted-Average Exercise Price	$ 1.33	$ 1.70	$ 1.56
Options Exercisable, Number	1,044
Options Exercisable, Weighted-Average Exercise Price	$ 1.49
Exercise Price Range, Lower Range Limit	0.40
Exercise Price Range, Upper Range Limit	$ 3.84
Director Plan 2005 [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Options Outstanding, Number	408
Options Outstanding, Weighted-Average Remaining Contractual Life in Years	5 years 8 months 12 days
Options Outstanding, Weighted-Average Exercise Price	$ 1.22	$ 1.27	$ 1.34
Options Exercisable, Number	349
Options Exercisable, Weighted-Average Exercise Price	$ 1.27
Exercise Price Range, Lower Range Limit	0.76
Exercise Price Range, Upper Range Limit	$ 1.98