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Consolidated Statements of Cash Flows (USD $)
 3 Months Ended
Mar. 31, 2013
Mar. 31, 2012
Cash flows from operating activities:    
Net loss $ (1,589,184) $ (803,339)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 10,321 8,500
Stock-based compensation 713,631 463,881
Changes in assets and liabilities:    
Royalty receivables (109,941) (108,511)
Prepaid expenses and other assets 113,869 (598,239)
Deferred revenue 166,250 162,500
Accounts payable and accrued expenses 131,254 83,641
Net cash used in operating activities (563,800) (791,567)
Cash flows from investing activities:    
Purchase of fixed assets (11,127) (2,459)
Change in short term investments 0 (2,497)
Note receivable and interest on SPD Control Systems 0 224,903
Net cash (used in) provided by investing activities (11,127) 219,947
Net decrease in cash and cash equivalents (574,927) (571,620)
Cash and cash equivalents at beginning of year 8,390,233 2,403,364
Cash and cash equivalents at end of period $ 7,815,306 $ 1,831,744