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Consolidated Statements of Cash Flows (USD $)
 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Cash flows from operating activities:    
Net loss $ (17,489,971) $ (42,629,781)
Loss from discontinued operations 0 27,412,679
Adjustments to reconcile net loss to net cash used in operating activities:    
Common stock, stock options and warrants issued as payment for compensation, services rendered 3,314,197 3,555,011
Depreciation and amortization 832,920 774,773
Amortization of preferred stock discount and issuance cost 0 872,736
Changes in fair value of derivative liability (68,556) (111,517)
Bad debt expense (recovery) (7,178) 233,800
Deferred Income Taxes 447,568 0
Prepaid expenses and other current assets (190,150) (195,927)
Accounts receivable 359,163 (524,115)
Inventory 1,081,060 (513,598)
Unearned revenues (1,106,299) 497,613
Other assets (25,805) (180,000)
Accounts payable, accrued expenses and other current liabilities (272,718) 963,948
Net cash used in operating activities - continuing operations (13,125,769) (9,844,378)
Net cash provided by operating activities - discontinued operations 0 8,992,032
Net cash used in operating activities (13,125,769) (852,346)
Cash flows from investing activities:    
Acquisition of property and equipment (268,535) (176,011)
Net cash used in investing activities - continuing operations (268,535) (176,011)
Net cash used in investing activities - discontinued operations 0 (2,140,792)
Net cash used in investing activities (268,535) (2,316,803)
Cash flows from financing activities:    
Proceeds from exercise of warrants 105,881 0
Net proceeds from issuance of capital stock 14,248,148 9,951,227
Repayment of mortgage loan (93,070) (93,755)
Proceeds from notes payable 221,218 223,433
Repayment of notes payable (96,608) (159,460)
Repayment of preferred stock 0 (1,391,926)
Payments of Dividends   (31,702)
Payment for warrant inducement (6,239) 0
Net cash provided by financing activities - continuing operations 14,379,330 8,497,817
Net cash provided by financing activities - discontinued operations 0 229,176
Net cash provided by financing activities 14,379,330 8,726,993
Impact of changes of foreign exchange rates 0 (41,506)
Net increase in cash and cash equivalents 985,026 5,516,338
Cash and cash equivalents at beginning of period 13,737,452 12,745,432
Cash and cash equivalents at end of period 14,722,478 18,261,770
Less cash and cash equivalents of discontinued operations at end of period 0 16,149,188
Cash and cash equivalents of continuing operations at end of period 14,722,478 2,112,582
Supplemental Disclosure of Cash Flow Information:    
Interest 126,000 1,243,700
Taxes 0 811,500
Capitalized interest 0 106,400
Common stock issued pursuant to the redemption of Convertible Redeemable Series E 7% Preferred Stock 0 717,700
Common stock issued in payment of dividends for the Convertible Redeemable Series E 7% Preferred Stock $ 0 $ 130,700