COMMON STOCK AND COMMON STOCK PURCHASE WARRANTS- Addtional Information (Details) (USD $)	0 Months Ended			12 Months Ended				1 Months Ended			1 Months Ended			12 Months Ended	0 Months Ended				1 Months Ended	12 Months Ended
	Apr. 13, 2012	Jan. 13, 2012	Jan. 24, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010	Sep. 09, 2009	Oct. 31, 2008 Series A Warrants	Oct. 31, 2008 Series B Warrants	Oct. 31, 2008 Series B Warrants Broadband Capital Management, Llc	Oct. 31, 2008 Series B Warrants Penumbra Worldwide Ltd	Oct. 31, 2008 Maximum Series A Warrants	Oct. 31, 2008 Private Placement	Dec. 31, 2012 Private Placement Series B Warrants	Apr. 14, 2010 IPO	Sep. 09, 2009 IPO	Apr. 14, 2010 Underwriters	Sep. 09, 2009 Underwriters	Oct. 31, 2008 Series A Preferred Stock Private Placement	Dec. 31, 2011 Common Stock
Stock and warrants issued during period, value, preferred stock and warrants													1,500,000						6,818,182
Proceeds of the private placement (net of fees and expenses)													$ 13,656,538
Conversion restriction, number of shares owned percntage than issued and outstanding												9.90%
Number of shares issued on cashless exercise of warrants				48,402	108,855	23,728		1,500,000		250,000	250,000							138,000
Warrants exercise price					3.50	3.50		3.50		3.50	3.50
Class of warrant or rights period from which warrants or rights exercisable								5 years			5 years
Temporary equity, redemption price per share					$ 8.05			$ 0.01
Warrants Redemption Percentage												9.90%
Description on weighted average price of our common stock								The daily volume weighted average price of our Common Stock is above $8.87 for 30 consecutive trading days ending on the date of the notice of redemption.
Description on average trading volume in shares								300,000 shares per day.	The average trading volume of Common Stock exceeds 100,000 shares for the immediately preceding 30 trading days.
Proceeds from exercise of warrants				0	1,898,050	3,226,300								539,910
Allocation of proceeds to beneficial conversion feature				1,002,115
Fair value of common stock on commitment date				$ 2.26
Sale of stock, number of shares issued in transaction																2,000,000
Sale Of Stock Number Of Additional Shares Exercised																		300,000
Offering price																		$ 4.00
Proceeds from issuance initial public offering																		7,864,000
Common stock, strike price per share																		$ 4.80
Share repurchase program authorized amount			15,000,000
Repurchase of common stock (in shares)																				264,047
Repurchase of common stock					2,126,597
Dividend payable				0	992,846
Stock issued during period, shares, new issues															4,285,715		559,006
Equity issuance, per share amount															$ 8.05
Proceeds from issuance of common stock				0	0	32,069,517									32,100,000
Stock repurchase program, period in force			1 year
Stock repurchase program expired date					Jan. 23, 2012
Dividend payment restrictions schedule, amounts paid	$ 494,089	$ 498,757
Convertible preferred stock, shares issued upon conversion							6,818,182