CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $)	9 Months Ended
	Sep. 30, 2012		Sep. 30, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (2,959,561)		$ (4,722,626)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	174,312		254,069
Impairment loss on property held for sale	708,000		0
Net gain on building, land and equipment disposal	(98,505)		4,793
Provision for inventory reserves	0		(73,830)
Non-cash stock based compensation expense	52,617		237,081
Changes in assets and liabilities:
Accounts receivable	391,391		1,647,965
Other receivable	99,447		(1,956)
Inventory	72,543		663,620
Prepaid expenses, deposits and other assets	206,887		302,813
Long term receivables - net	205,313		0
Accounts payable	(271,683)		(540,030)
Billings in excess of costs	(2,152)		(4,646)
Accrued expenses and deposits	(784,128)		(1,099,084)
Net cash used in operating activities	(2,205,519)		(3,331,831)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of equipment	(2,363)		(214,567)
Proceeds from disposal of building, land and equipment	1,490,495		3,400
Net cash provided by (used in) investing activities	1,488,132		(211,167)
CASH FLOWS FROM FINANCING ACTIVITIES:
Dividends paid (preferred stock)	(130,616)		0
Exercise of stock options	0		23,975
Net cash provided by (used in) financing activities	(130,616)		23,975
Net decrease in cash and cash equivalents	(848,003)		(3,519,023)
Cash and cash equivalents, beginning of period	3,937,135		8,983,281
Cash and cash equivalents, end of period	$ 3,089,132	[1]	$ 5,464,258

[1] (Unaudited)