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Balance Sheets (USD $)
Dec. 31, 2011
Dec. 31, 2010
ASSETS    
Cash and cash equivalents $ 2,693,623 $ 5,744,322
Investments 30,000 30,000
Trade accounts receivable, less allowance for doubtful accounts of $6,000 and $3,000 on December 31, 2011 and 2010, respectively 878,600 765,250
Other receivables 13,712 14,260
Inventories, net 1,338,210 1,825,882
Prepaid expenses and other current assets 391,466 346,926
Total current assets 5,345,611 8,726,640
Equipment and leasehold improvements, net 3,713,082 4,721,672
Other assets, net 32,318 34,799
Total assets 9,091,011 13,483,111
LIABILITIES AND STOCKHOLDERS' EQUITY    
Accounts payable 319,706 918,527
Accrued expenses 383,425 1,048,257
Accrued discount liability 116,103 296,235
Total current liabilities 819,234 2,263,019
Long-term deferred rent 647,404 635,523
Asset retirement obligations 148,515 141,407
Total long-term liabilities 795,919 776,930
Contingent liabilities      
Stockholders' equity:    
Preferred stock, $.01 par value, 24,088 shares authorized and no shares issued and outstanding      
Common stock, $.01 par value, 35,000,000 shares authorized; 21,208,162 and 21,204,162 shares issued and outstanding on December 31, 2011 and December 31, 2010, respectively 212,082 212,042
Additional paid-in capital 93,070,979 92,674,786
Accumulated deficit (85,807,203) (82,443,666)
Total stockholders' equity 7,475,858 10,443,162
Total liabilities and stockholders' equity $ 9,091,011 $ 13,483,111