Equity Incentive Awards (Details 1)	12 Months Ended
	Dec. 31, 2016 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award
Stock Option Exercise Price as Percent of Value of Common Stock	100.00%
Restricted Stock Purchase Price as Percent of Value of Common Stock	85.00%
Total Shares That May be Issued, Equity Incentive Plan	10,000,000
Limit On Shares That May Be Issued Other Than Stock Options or SARs, Equity Incentive Plan	3,571,428
Options Outstanding, Equity Incentive Plan	4,646,796
Restricted Stock Units Outstanding, Equity Incentive Plan	874,527
Stock Options Exercised, Equity Incentive Plan	1,354,248
Shares Issued Pursuant to Restricted Stock Units, Equity Incentive Plan	832,642
Shares Issued Pursuant to Stock Bonus Awards, Equity Incentive Plan	113,940
Directors Intial Option Grant	4,285
Directors Annual Option Grant	2,857
Directors Annual Restricted Stock Award Value | $	$ 20,000
Total Shares That May Be Issued, Non-Employee Directors Equity Incentive Plan	357,142
Options Outstanding, Non-Employee Directors Equity Incentive Plan	187,115
Stock Options Exercised, Non-Employee Directors Equity Incentive Plan	0
Shares Issued Pursuant to Restricted Stock Awards, Non-Employee Directors Equity Incentive Plan	72,448
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized	5,708,438
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant	2,275,426