Consolidated Balance Sheets (USD $)	Sep. 30, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 18,817,057	$ 13,204,067
Short-term investments	0	15,433,967
Accounts receivable, net	6,848,148	1,159,145
Amounts due from related parties	900,000	2,194,491
Inventories	1,994,454	2,626,606
Prepaid expenses and other current assets	2,808,954	1,284,279
Total current assets	31,368,613	35,902,555
Property and equipment, net	12,726,893	927,227
Goodwill and intangibles, net	15,560,287
Other assets	124,903	38,882
Total assets	59,780,696	36,868,664
Current liabilities:
Accounts payable	2,556,163	1,435,660
Accrued expenses	3,158,638	2,216,524
Deferred revenue	599,787	93,750
Notes payable	243,347
Total current liabilities	6,557,935	3,745,934
Deferred revenue, net of current portion	2,323,584	33,526
Notes payable, net of current portion	3,730,411
Common stock warrant liability	5,568,525	1,173,747
Total liabilities	18,180,455	4,953,207
Commitments and contingencies
Contingently redeemable series C preferred stock, 550 shares issued and outstanding (liquidation preference of $550,000)	550,000	550,000
Preferred stock, $.01 par value; 1,000,000 shares authorized
Series B convertible preferred stock, 130 shares issued and outstanding (liquidation preference of $13,000)	1	1
Series E convertible preferred stock, 22,740 shares issued and outstanding (liquidation preference of $2,274,000)	227	227
Common stock $.01 par value; 150,000,000 shares authorized; 12,020,442 issued at September 30, 2013 and 10,942,973 issued at December 31, 2012	120,204	109,430
Additional paid-in capital	287,885,380	279,463,439
Treasury stock (at cost), 10,897 shares at September 30, 2013, and 4,556 shares at December 31, 2012	(156,074)	(125,381)
Accumulated deficit	(247,621,276)	(248,365,480)
Accumulated other comprehensive income	821,779	283,221
Total shareholders' equity	41,050,241	31,365,457
Total liabilities and shareholders' equity	$ 59,780,696	$ 36,868,664