Earnings Per Share (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jul. 01, 2014	Jul. 02, 2013	Jul. 01, 2014	Jul. 02, 2013
Earnings Per Share [Abstract]
Net income	$ 3,527	$ 68	$ 4,951	$ 992
Shares:
Basic weighted average shares outstanding (in shares)	29,703,884	23,509,781	29,655,102	23,374,383
Dilutive stock options and warrants (in shares)	1,359,890	680,033	1,406,620	604,628
Diluted weighted average number of shares outstanding (in shares)	31,063,774	24,189,814	31,061,722	23,979,011
Earnings per share:
Basic EPS (USD per share)	$ 0.12	$ 0.00	$ 0.17	$ 0.04
Diluted EPS (USD per share)	$ 0.11	$ 0.00	$ 0.16	$ 0.04
Antidilutive securities excluded from computation of earnings per share	243,552	357,261	243,552	347,227