Quarterly Results of Operations (Unaudited) (Details) - Quarterly Results of Operation (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended								12 Months Ended
	Dec. 31, 2014	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 31, 2013	Sep. 28, 2013	Jun. 29, 2013	Mar. 30, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Quarterly Results of Operation [Abstract]
Net Sales	$ 16,020	$ 13,928	$ 16,033	$ 14,642	$ 13,264	$ 14,661	$ 14,465	$ 16,169	$ 60,623	$ 58,559	$ 61,260
Gross profit	3,726	2,624	2,725	2,938	2,553	3,461	2,546	4,040	12,013	12,600	13,786
Net loss from continuing operations	(2,528)	(1,438)	(2,197)	(1,725)	(2,600)	(770)	(2,159)	(593)	(7,888)	(6,122)	34,697
Net loss from discontinued operations	(682)	(1,118)	(17,303)	(2,901)	(2,141)	(1,700)	(1,370)	(1,501)	(22,004)	(6,712)	(4,719)
Net loss	$ (3,210)	$ (2,556)	$ (19,500)	$ (4,626)	$ (4,741)	$ (2,470)	$ (3,529)	$ (2,094)	$ (29,892)	$ (12,834)	$ 29,978
Basic loss per share (3):
Net loss from continuing operations (in Dollars per share)	$ (0.18)	$ (0.10)	$ (0.16)	$ (0.12)	$ (0.19)	$ (0.05)	$ (0.15)	$ (0.04)	$ (0.56)	$ (0.43)	$ 2.42
Net loss from discontinued operations (in Dollars per share)	$ (0.05)	$ (0.08)	$ (1.22)	$ (0.21)	$ (0.15)	$ (0.12)	$ (0.10)	$ (0.11)	$ (1.55)	$ (0.48)	$ (0.33)
Net loss (in Dollars per share)	$ (0.23)	$ (0.18)	$ (1.38)	$ (0.33)	$ (0.34)	$ (0.17)	$ (0.25)	$ (0.15)	$ (2.11)	$ (0.91)	$ 2.09
Diluted loss per share (3):
Net loss income from continuing operations (in Dollars per share)	$ (0.18)	$ (0.10)	$ (0.16)	$ (0.12)	$ (0.19)	$ (0.05)	$ (0.15)	$ (0.04)	$ (0.56)	$ (0.43)	$ 2.40
Loss from discontinued operations (in Dollars per share)	$ (0.05)	$ (0.08)	$ (1.22)	$ (0.21)	$ (0.15)	$ (0.12)	$ (0.10)	$ (0.11)	$ (1.55)	$ (0.48)	$ (0.33)
Net loss (in Dollars per share)	$ (0.23)	$ (0.18)	$ (1.38)	$ (0.33)	$ (0.34)	$ (0.17)	$ (0.25)	$ (0.15)	$ (2.11)	$ (0.91)	$ 2.07