STOCK-BASED COMPENSATION (Details) (USD $)	6 Months Ended
	Jun. 30, 2012
Stock-based compensation, additional disclosure
Total unrecognized compensation expense	$ 161,203
Recognition of unrecognized compensation expense over weighted average contractual life	1 year 1 month 28 days
Stock options
Number of Shares
Outstanding at the beginning of the period (in shares)	1,156,621
Exercised (in shares)	(44,036)
Expired (in shares)	(12,974)
Forfeited (in shares)	(76,787)
Outstanding at the end of the period (in shares)	1,022,824
Weighted-Average Exercise Price
Outstanding at the beginning of the period (in dollars per share)	$ 3.90
Exercised (in dollars per share)	$ 1.69
Expired (in dollars per share)	$ 6.15
Forfeited (in dollars per share)	$ 4.91
Outstanding at the end of the period (in dollars per share)	$ 3.89
Stock-based compensation, additional disclosure
Intrinsic value of outstanding exercisable options	$ 755,118
Weighted-average remaining contractual life of options exercisable	3 years 1 month 13 days