Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Details Textual)

v2.4.0.6
Summary of Significant Accounting Policies (Details Textual) (USD $)
 3 Months Ended 3 Months Ended 3 Months Ended 12 Months Ended 3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Dec. 31, 2012
Dec. 31, 2011
Mar. 31, 2010
Limited Liability Company Agreement [Member]
Mar. 31, 2013
Estimated Future Sales Return [Member]
Dec. 31, 2012
Estimated Future Sales Return [Member]
Mar. 31, 2013
Cooperative Incentive [Member]
Dec. 31, 2012
Cooperative Incentive [Member]
Mar. 31, 2013
Accounts Receivable [Member]
Three Customer [Member]
Dec. 31, 2012
Accounts Receivable [Member]
Three Customer [Member]
Mar. 31, 2013
Sales Revenue, Goods, Net [Member]
Mar. 31, 2012
Sales Revenue, Goods, Net [Member]
Mar. 31, 2013
Building and Building Improvements [Member]
Maximum [Member]
Mar. 31, 2013
Building and Building Improvements [Member]
Minimum [Member]
Mar. 31, 2013
Machinery and Equipment [Member]
Maximum [Member]
Mar. 31, 2013
Machinery and Equipment [Member]
Minimum [Member]
Mar. 31, 2013
Software [Member]
Mar. 31, 2013
Furniture and Fixtures [Member]
Mar. 31, 2013
Advertising and Incentive Promotion Costs [Member]
Dec. 31, 2012
Advertising and Incentive Promotion Costs [Member]
Cash and cash equivalents (Note 2) $ 4,536,000 $ 6,268,000 $ 572,000 $ 5,541,000                                  
Cash, FDIC Insured Amount 1,400,000                                        
Cash, Uninsured Amount 3,300,000                                        
Inventory, Work in Process and Raw Materials 1,000,000   1,000,000                                    
Inventory, Finished Goods 1,100,000   1,000,000                                    
Property Plant and Equipment Useful Life                           39 years 15 years 7 years 3 years 3 years 5 years    
Due from Banks 4,700,000                                        
Concentration Risk, Percentage                   69.10% 53.80% 94.00% 95.00%                
Sales Allowances, Goods 74,000 109,000                                      
Accrued Liabilities           1,600,000 1,300,000 924,000 1,500,000                        
Share-based compensation expense 39,000 88,000                                      
Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage         50.00%                                
Marketing and Advertising Expense 3,900,000 3,400,000                                      
Prepaid expenses and other current assets 488,000   2,687,000                                 122,000 2,200,000
Research and development $ 188,000 $ 361,000                                      
Common Stock, par value (in dollars per share) $ 0.0005   $ 0.0005