CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $)	6 Months Ended
	Jun. 30, 2012		Jun. 30, 2011
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (2,593,493)		$ (2,956,957)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	159,123		179,434
Impairment loss on property held for sale	708,000		0
Loss (gain) on equipment disposal	(21,500)		96
Provision for inventory reserves	0		(73,830)
Non-cash stock based compensation expense	46,459		186,192
Changes in assets and liabilities:
Accounts receivable	(74,608)		1,494,828
Other receivable	99,447		772
Inventory	50,995		498,074
Prepaid expenses, deposits and other assets	136,493		223,213
Long term receivables - net	205,313		0
Accounts payable	(249,242)		(624,364)
Billings in excess of costs	6,828		(4,891)
Accrued expenses and deposits	(702,931)		(881,142)
Cash Flow from Operations	(2,229,116)		(1,958,575)
CASH FLOWS FROM INVESTING ACTIVITIES:
Purchase of land, building and equipment	0		(101,630)
Proceeds from disposal of equipment	21,500		3,400
Net cash provided by (used in) investing activities	21,500		(98,230)
CASH FLOWS FROM FINANCING ACTIVITIES:
Dividends paid (preferred stock)	(87,077)		0
Exercise of stock options	0		23,975
Net cash provided by (used in) financing activities	(87,077)		23,975
Net decrease in cash and cash equivalents	(2,294,693)		(2,032,830)
Cash and cash equivalents, beginning of period	3,937,135		8,983,281
Cash and cash equivalents, end of period	$ 1,642,442	[1]	$ 6,950,451

[1] Unaudited