Consolidated Statements of Cash Flows (USD $)	6 Months Ended
Jun. 30, 2013	Jun. 30, 2012
Cash flows from operating activities:
Net loss	$ (2,368,664)	$ (1,592,871)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	21,867	17,122
Stock-based compensation	922,918	581,720
Changes in assets and liabilities:
Royalty receivables	(150,851)	(203,201)
Prepaid expenses and other assets	132,302	43,769
Deferred revenue	102,500	131,250
Accounts payable and accrued expenses	22,447	32,097
Net cash used in operating activities	(1,317,481)	(990,114)
Cash flows from investing activities:
Purchase of fixed assets	(35,743)	(4,518)
Change in short term investments	(6,535)	205,056
Note receivable and interest on SPD Control Systems		224,903
Net cash (used in) provided by investing activities	(42,278)	425,441
Cash flows from financing activities:
Net cash used in financing activities
Net decrease in cash and cash equivalents	(1,359,759)	(564,673)
Cash and cash equivalents at beginning of year	8,390,233	2,403,364
Cash and cash equivalents at end of period	$ 7,030,474	$ 1,838,691

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.