CONDENSED CONSOLIDATED BALANCE SHEETS (USD $)	Mar. 31, 2013	Dec. 31, 2012
Current Assets:
Cash and cash equivalents	$ 1,516,799	$ 1,435,658
Accounts receivable, net	3,390,043	3,500,299
Inventories, net	2,456,161	2,386,587
Prepaids and other current assets	2,540,304	1,937,970
Assets of discontinued operations held for sale	1,047,032	1,702,962
Total current assets	10,950,339	10,963,476
Property and equipment, net	3,547,718	3,209,643
Restricted assets held in escrow	1,146,470	1,778,052
Goodwill	12,400,000	12,400,000
Deposits and other assets	295,853	386,693
Assets of discontinued operations held for sale	30,061,026	32,523,496
Total assets	58,401,406	61,261,360
Current Liabilities:
Accounts payable	5,834,886	4,194,498
Accrued payroll obligations	857,962	738,737
Deferred revenue	1,039,566	996,530
Accrued warranties	391,882	364,749
Derivative instruments	1,218,000	600,000
Other accrued liabilities	1,106,934	1,174,902
Debt obligations, current portion	10,970,497	9,578,723
Liabilities of discontinued operations held for sale	1,999,001	3,510,749
Total current liabilities	23,418,728	21,158,888
Debt obligations, net of current portion	2,280,022	2,481,827
Liabilities of discontinued operations held for sale	24,079,425	23,397,964
Commitments and contingencies
Stockholders' Equity:
Preferred stock, $.001 par value; 20,000,000 shares authorized; none issued and outstanding for the periods presented	0	0
Additional paid-in-capital	467,066,241	465,645,892
Accumulated deficit	(459,362,057)	(452,458,137)
Accumulated other comprehensive loss in discontinued operations	(77,937)	77,854
Total stockholders' equity	8,623,231	14,222,681
Total liabilities and stockholders' equity	58,401,406	61,261,360
Series B common stock
Stockholders' Equity:
Common stock	1,000	1,000
Common stock
Stockholders' Equity:
Common stock	$ 995,984	$ 956,072