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SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables)
12 Months Ended
Dec. 31, 2012
Accounting Policies [Abstract]  
Schedule of Cash, Cash Equivalents and Short-term Investments [Table Text Block]
Cash, cash equivalents and short-term investments consist of the following:

 

    As of December 31,     Increase  
    2012     2011     (Decrease)  
Cash and cash equivalents   $ 2,673,719     $ 781,516     $ 1,892,203  
Short-term investments     2,240,000       4,178,000       (1,938,000 )
Total   $ 4,913,719     $ 4,959,516     ($ 45,797 )
Schedule of Inventory, Current [Table Text Block]

Inventory includes raw materials, work-in-process and finished goods and is recorded at the lower of cost, on the first-in, first-out method, or market (net realizable value). Work-in-process and finished goods inventories include materials, labor and manufacturing overhead. Inventory consists of the following:

 

    As of December 31,     (Decrease)  
    2012     2011     Increase  
Raw materials   $ 198,441     $ 218,104     ($ 19,663 )
Work-in-process     986,243       1,000,037       (13,794 )
Finished goods     464,318       448,324       15,994  
Inventory   $ 1,649,002     $ 1,666,465     ($ 17,463 )
Schedule of Weighted Average Number of Shares [Table Text Block]
    Year Ended December 31,  
    2012     2011     2010  
Weighted average number of shares outstanding during the period     3,018,296       2,984,749       2,970,833  
                         
Dilutive stock options     172,750              
                         
Shares that could have been repurchased with the proceeds from the dilutive stock options     (82,627 )            
                         
Diluted number of shares outstanding during the period     3,108,419       2,984,749       2,970,833  
                         
Outstanding stock options not included in the calculation because the effect would be anti-dilutive     43,000       236,000       273,500