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Statements of Operations (USD $)
 12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Statements Of Operations      
Revenues $ 17,510,780 $ 13,498,196 $ 17,126,630
Cost of revenues 10,261,612 8,096,520 9,753,006
Gross profit 7,249,168 5,401,676 7,373,624
Operating expenses:      
Research and development 2,775,058 2,463,268 2,926,954
Sales and marketing 3,606,982 4,106,260 5,167,783
General and administrative 2,142,214 2,546,648 2,236,306
Impairment charges       5,370,946
Total operating expenses 8,524,254 9,116,176 15,701,989
Operating loss (1,275,086) (3,714,500) (8,328,365)
Interest expense, net (See Note - Senior Convertible Note) (1,115,335) (245,822) (224,700)
Gain on sale of product line assets       450,000
Net loss before deferred taxes (2,390,421) (3,960,322) (8,103,065)
Deferred tax (expense) benefit (31,940) (15,515) 214,261
Net loss $ (2,422,361) $ (3,975,837) $ (7,888,804)
Net loss per common share:      
Basic and diluted $ (0.56) $ (1.05) $ (2.21)
Weighted average shares outstanding:      
Basic and diluted 4,360,217 3,795,673 3,562,080