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Stock Options and Award Programs (Details 1)
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected dividend yield 0.00% 0.00%
Board OF Directors Option [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected life 2 years 0 years
Minimum [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected volatility 68.00% 66.00%
Risk-free interest rate 1.40% 0.90%
Forfeiture rate 2.00% 2.00%
Minimum [Member] | Employee Stock Option [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected life 3 years 3 years
Maximum [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected volatility 69.60% 72.00%
Risk-free interest rate 1.70% 1.50%
Forfeiture rate 3.00% 3.00%
Maximum [Member] | Employee Stock Option [Member]    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Expected life 5 years 5 years