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NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Business (Details Narrative) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013 Data	Sep. 30, 2012	Sep. 30, 2013 Data	Sep. 30, 2012	Dec. 31, 2012	Dec. 31, 2011
Nature Of Business And Summary Of Significant Accounting Policies - Business Details Narrative
Number of patents owned covering various technologies	20		20
Number of license agreements entered with respect to Remote Power Patent	16		16
Royalty revenue	$ 1,227,000	$ 1,418,000	$ 7,198,000	$ 7,809,000
Cash and cash equivalents	$ 19,584,000		$ 19,584,000		$ 21,983,000	$ 20,661,000

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.

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