Organization and Summary of Significant Accounting Policies (Details 5)	3 Months Ended
	Mar. 28, 2015
Stock Options
Stock Options and Stock-Based Compensation
Requisite period of the award over which stock based compensation award expenses are recognized	5 years
Stock Options | Minimum
Stock Options and Stock-Based Compensation
Requisite period of the award over which stock based compensation award expenses are recognized	1 year
Stock Options | Maximum
Stock Options and Stock-Based Compensation
Requisite period of the award over which stock based compensation award expenses are recognized	5 years
Restricted Stock | Minimum
Stock Options and Stock-Based Compensation
Requisite period of the award over which stock based compensation award expenses are recognized	1 year
Restricted Stock | Maximum
Stock Options and Stock-Based Compensation
Requisite period of the award over which stock based compensation award expenses are recognized	5 years