Condensed Consolidated Statement of Cash Flows (Unaudited) (USD $)	9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010
Condensed Consolidated Statement of Cash Flows (Unaudited) [Abstract]
Net loss	$ (4,722,626)	$ (1,959,498)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	254,069	305,668
Loss on equipment disposal	4,793	5,725
Provision for inventory reserves	(73,830)	36,000
Provision for losses on projects		0
Non-cash stock based compensation expense	237,081	814,422
Changes in assets and liabilities:
Accounts receivable	1,647,965	(1,192,253)
Other receivable	(1,956)	1,710
Inventory	663,620	(20,491)
Prepaid expenses, deposits and other assets	302,813	126,533
Accounts payable	(540,030)	372,758
Billings in excess of costs	(4,646)	(37,684)
Accrued expenses, deposits and deferred rent	(1,099,084)	312,087
Net cash used in operating activities	(3,331,831)	(1,235,023)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of land, building and equipment	(214,567)	(78,670)
Proceeds from sale of short term investments	0	225,000
Proceeds from disposal of equipment	3,400	14,062
Net cash used in investing activities	(211,167)	160,392
CASH FLOWS FROM FINANCING ACTIVITIES:
Exercise of stock options	23,975	577,406
Net cash provided by financing activities	23,975	577,406
Net decrease in cash and cash equivalents	(3,519,023)	(497,225)
Cash and cash equivalents, beginning of period	8,983,281	9,604,643
Cash and cash equivalents, end of period	$ 5,464,258	$ 9,107,418