CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) (USD $)
3 Months Ended
Mar. 31, 2012
Mar. 31, 2011
Revenues:    
Equipment leasing $ 2,139,170 $ 2,341,293
Administrative, field & support service revenues 128,896 119,822
Equipment sales 12,917 39,300
Total revenues 2,280,983 2,500,415
Operating expenses:    
Cost of revenues 699,640 836,043
Research and development 157,247 231,889
Sales, general and administrative 1,182,351 1,538,278
Total operating expenses 2,039,238 2,606,210
Operating income (loss) 241,745 (105,795)
Interest income (expense):    
Interest income   1
Interest expense (89,201) (359,492)
Total interest expense (89,201) (359,491)
Income (loss) before provision for income taxes 152,544 (465,286)
Provision for income taxes      
Net income (loss) 152,544 (465,286)
Preferred stock dividends and accretion (640,613) (368,805)
Net loss available to common stockholders $ (488,069) $ (834,091)
Basic and diluted loss per common share (in dollars per share) $ (0.04) $ (0.08)
Weighted average shares of common stock outstanding (in shares) 10,930,117 10,928,784