STOCK-BASED COMPENSATION (Details) - USD ($)	9 Months Ended
	Sep. 26, 2015	Dec. 27, 2014
Stock-based compensation, additional disclosure
Total unrecognized compensation expense	$ 1,097,840
Recognition of unrecognized compensation expense over weighted average contractual life	2 years
Shares reserved for the grant of future share-based awards	633,315	761,078
Stock options
Options
Outstanding at the beginning of the period (in shares)	351,808
Exercised (in shares)	(167,995)
Outstanding at the end of the period (in shares)	183,813
Weighted - Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)	$ 2.61
Exercised (in dollars per share)	3.29
Outstanding at the end of the period (in dollars per share)	$ 1.98
Stock-based compensation, additional disclosure
Intrinsic value of outstanding exercisable options	$ 1,133,439
Weighted-average remaining contractual life of options exercisable	1 year 7 months 21 days
Restricted Stock
Number of Shares
Unvested at the beginning of the period (in shares)	105,817
Granted (in shares)	122,890
Vested (in shares)	(72,557)
Forfeited (in shares)	(13,761)
Unvested at the end of the period (in shares)	142,389
Weighted - Average Grant Date Fair Value
Unvested at the beginning of the period (in dollars per share)	$ 5.19
Granted (in dollars per share)	8.43
Vested (in dollars per share)	5.90
Forfeited (in dollars per share)	7.87
Unvested at the end of the period (in dollars per share)	$ 7.37
Total fair value of shares vested and recognized as stock-based compensation expense during the year	$ 427,798
Stock-based compensation, additional disclosure
Granted (in shares)	122,890
Director
Number of Shares
Granted (in shares)	18,634
Stock-based compensation, additional disclosure
Annual stock award paid as compensation to outside directors	$ 27,500
Granted (in shares)	18,634
Stock-based compensation expense	$ 144,375