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OTHER REVENUES (EXPENSES), NET (Details) (USD $)
3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Royalty income $ (3,000) $ 4,045
Interest income 2,890 5,004
Interest expense (17,222) (19,486)
Other 61,364 (72)
Total, net $ 44,032 $ (10,509)