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Stock Based Compensation (Details Textual) (USD $)	1 Months Ended			3 Months Ended		6 Months Ended			3 Months Ended	6 Months Ended
	Feb. 28, 2013	Feb. 29, 2012	May 31, 2011	Jun. 29, 2013	Jun. 30, 2012	Jun. 29, 2013	Jun. 30, 2012	Jun. 29, 2013 Minimum	Mar. 30, 2013 Restricted stock units	Jun. 29, 2013 Restricted stock units	Jun. 29, 2013 Restricted Stock Awards
Stock Based Compensation (Additional Textual) [Abstract]
Weighted-average grant date fair value of the options granted				$ 2.89	$ 2.75	$ 3.00	$ 2.77
Dividend yield				0.00%	0.00%	0.00%	0.00%
Stock-based compensation capitalized into inventory				$ 11,000	$ 6,000
Total intrinsic value of options exercised						445,000	198,000
Total unrecognized compensation cost, net of expected forfeitures, related to non-vested share-based compensation arrangements under the Incentive Plan				869,000		869,000
Compensation cost recognition, weighted average period (years)						3 years 26 days
Weighted grant date fair value of restricted stock units granted						258,000
Weighted-average grant date fair value of restricted stock units granted				$ 4.45		$ 4.45
Period consider for calculation of average stock price performance prior awards vesting										2 months
Period consider for calculation of average stock price performance after awards vesting										2 months
Stock repurchase program authorized amount	3,000,000	4,000,000	2,000,000
Stock repurchase paid						12 months
Stock repurchase, shares						16,904
Shares repurchased price, per share						$ 4.50
Common shares under the stock repurchase program						$ 2,900,000
Common stock converted from Series A Preferred Stock, shares						1,000,000
Trading price of common stock per share								$ 5.00
Number of consecutive trading days						30 days
Stock Based Compensation (Textual) [Abstract]
Restricted stock units granted									220,000	220,000	0
Restricted stock vested during the period										1,250	0
Restricted stock forfeited during the period										0	0

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Common stock trading price for preferred stock conversion.

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Share based compensation arrangement by share based payment award equity instruments other than options non vested grant date fair value.

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term.

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