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Consolidated Balance Sheets (Unaudited) (USD $)
Mar. 31, 2013
Dec. 31, 2012
Jun. 30, 2012
Current assets:      
Cash and cash equivalents $ 1,403,490 $ 1,777,530 $ 2,354,087
Trade accounts receivable, net of allowance of $27,600 and $18,214 2,234,361 2,409,606 2,133,079
Inventories, net 1,828,368 1,729,227 1,513,384
Other receivables 323,500 287,057 41,000
Prepaid interest expense    50,750 7,250
Current debt costs, net       
Prepaid expenses and other assets 341,786 229,083 201,459
Total current assets 6,131,505 6,485,385 6,250,259
Property and equipment, net 2,013,214   1,920,950
Intangible assets, net 43,614   68,265
Debt costs, net      3,882
Other assets 27,737   27,737
Total assets 8,216,070   8,271,093
Current liabilities:      
Accounts payable 1,048,555   1,129,708
Accrued liabilities 167,942   183,910
Accrued payroll and benefits 496,793   386,234
Deferred revenue 1,966   37,750
8% convertible debentures to related parties        
8% convertible debentures, net of debt discount        
Capital lease obligation, current portion 3,602   3,602
Total current liabilities 1,718,858   1,741,204
Capital lease obligations 4,202 5,102 6,903
Deferred rent 258,280   345,726
Warrant liability 599,194   1,087,296
8% convertible debentures to related parties      1,012,500
8% convertible debentures      75,000
Total liabilities 2,580,534   4,268,629
Stockholders' equity:      
Preferred stock: Series D, $.01 par value, voting; 5,000,000 shares authorized; none issued and outstanding        
Common stock: Class A, $.01 par value, voting; 40,000,000 shares authorized; 12,955,728 and 11,711,952 shares issued and outstanding, respectively 129,557   117,120
Additional paid-in capital 209,571,539   208,410,216
Accumulated other comprehensive income 88,483   88,258
Accumulated deficit (204,154,043)   (204,613,130)
Total stockholders' equity 5,635,536   4,002,464
Total liabilities and stockholders' equity $ 8,216,070   $ 8,271,093