CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
CASH FLOWS FROM OPERATING ACTIVITIES
Net loss	$ (6,360,103)	$ (2,932,793)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	338,315	396,738
Loss on equipment disposal	36,525	7,669
Provision for inventory reserves	(73,830)	51,830
Noncash stock based compensation expense	256,124	967,695
Changes in assets and liabilities:
Accounts receivable	1,527,548	(947,348)
Other receivable	(50,730)	3,578
Inventory	615,700	50,103
Prepaid expenses and other assets	126,291	92,589
Accounts payable	(551,679)	441,596
Billings in excess of costs	(4,353)	(36,211)
Accrued expenses and deposits	(696,723)	501,675
Net cash used in operating activities	(4,836,915)	(1,402,879)
CASH FLOWS FROM INVESTING ACTIVITIES
Purchase of property and equipment	(237,206)	(80,675)
Sales of short term investment	0	225,000
Proceeds from disposal of equipment	4,000	14,061
Net cash provided by (used in) investing activities	(233,206)	158,386
CASH FLOWS FROM FINANCING ACTIVITIES
Proceeds from the exercise of stock options and warrants	23,975	623,131
Net cash provided by (used in) financing activities	23,975	623,131
Net decrease in cash and cash equivalents	(5,046,146)	(621,362)
Cash and cash equivalents, beginning of period	8,983,281	9,604,643
Cash and cash equivalents, end of period	$ 3,937,135	$ 8,983,281