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Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
Net revenue:
Rental	$ 2,062	$ 2,448
Sales	6,882	4,185
Total net revenue	8,944	6,633
Cost of revenue:
Rental	258	334
Sales	1,555	1,110
Total cost of revenue	1,813	1,444
Gross profit	7,131	5,189
Selling, general and administrative expense	6,645	5,328
Income (loss) from operations	486	(139)
Interest expense	(93)	(58)
Income (loss) before income tax	393	(197)
Income tax (expense) benefit	(73)	87
Net income (loss)	$ 320	$ (110)
Basic and diluted net income (loss) per share	$ 0.01		[1]
Weighted average number of common shares outstanding:
Basic	30,881,770	30,631,020
Diluted	31,037,417	30,631,020
[1] *Less than ($0.01) per share

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