XML 43 R5.htm IDEA: XBRL DOCUMENT v2.4.0.6
Consolidated Statements of Cash Flows (USD $)
 9 Months Ended
Sep. 30, 2012
Sep. 30, 2011
Cash flows from operating activities:    
Net loss $ (2,459,335) $ (3,310,243)
Adjustments to reconcile net loss to net cash used in operating activities:    
Depreciation and amortization 26,108 29,597
Stock-based compensation 787,538 695,827
Recovery of uncollectible royalty receivable 0 (30,000)
Changes in assets and liabilities:    
Royalty receivables (239,731) 255,222
Prepaid expenses and other assets 21,116 40,141
Deferred revenue 53,124 64,841
Accounts payable and accrued expenses (19,113) (44,632)
Net cash used in operating activities (1,830,293) (2,299,247)
Cash flows from investing activities:    
Purchase of fixed assets (10,609) (8,726)
Change in short term investments 203,639 (2,000,000)
Note and interest receivable on SPD Control Systems 224,903 0
Net cash provided by (used in) investing activities 417,933 (2,008,726)
Cash flows from financing activities:    
Net proceeds from the sale of stock 6,974,750 0
Net proceeds from the exercise of options or warrants 0 65,977
Net cash provided by financing activities 6,974,750 65,977
Net increase (decrease) in cash and cash equivalents 5,562,390 (4,241,996)
Cash and cash equivalents at beginning of year 2,403,364 6,957,544
Cash and cash equivalents at end of period $ 7,965,754 $ 2,715,548