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Discontinued Operations (Detail) (USD $)
 3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Total Sales $ 0 $ 1,741,351
Total Cost of Sales 0 986,869
Gross Profit 0 754,482
Income (Loss) from Discontinued Operations 0 223,109
Gain (Loss) on Disposal of Discontinued Operations 0 0
Provision (Benefit) for Income Taxes 0 0
Net Income (Loss) from Discontinued Operations 0 223,109
Basic Income (Loss) per Share $ 0 $ 0.063
Diluted Income (Loss) per Share $ 0 $ 0.063
Weighted-average Shares Outstanding Basic 3,536,865 3,536,865
Research and Development Expense
    
Operating Expenses: 0 163,921
Selling and Marketing Expense
    
Operating Expenses: 0 98,006
General and Administrative Expense
    
Operating Expenses: 0 0
Depreciation and Amortization
    
Operating Expenses: 0 0
Amortization Senior Debt Discount
    
Operating Expenses: 0 [1] 62,976 [1]
Interest Expense On Senior Debt
    
Operating Expenses: 0 [1] 206,470 [1]
Sales Of Products
    
Total Sales 0 1,387,337
Sales Of Engineering Services
    
Total Sales $ 0 $ 354,014
[1] Amounts reported represent the interest expense and the amortization of the discount on the Senior Term debt that was required to be repaid from the proceeds of the TDG Asset sale.