Consolidated Balance Sheets (USD $)	Dec. 31, 2013	Dec. 31, 2012
Current assets:
Cash and cash equivalents	$ 20,715,414	$ 13,204,067
Short-term investments	0	15,433,967
Accounts receivable, net	7,197,032	1,159,145
Amounts due from related parties	900,000	2,194,491
Inventories	2,583,455	2,626,606
Prepaid expenses and other current assets	831,138	1,284,279
Total current assets	32,227,039	35,902,555
Property and equipment, net	13,226,330	927,227
Intangible assets, net	2,828,451
Goodwill	11,151,925
Deferred tax assets	570,033
Other assets	88,682	38,882
Total assets	60,092,460	36,868,664
Current liabilities:
Accounts payable	2,805,112	1,435,660
Accrued expenses	2,488,096	2,216,524
Deferred revenue	753,979	93,750
Notes payable	250,162
Total current liabilities	6,297,349	3,745,934
Deferred revenue, net of current portion	2,242,746	33,526
Notes payable, net of current portion	3,745,275
Common stock warrant liability	379,468	1,173,747
Total liabilities	12,664,838	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 in 2012 (liquidation preference of $2,274,000)		227
Common stock $.01 par value; 150,000,000 shares authorized; 12,151,670 and 10,942,973 shares issued in 2013 and 2012, respectively	121,517	109,430
Additional paid-in capital	287,047,939	279,463,439
Treasury stock (at cost), 4,556 shares in 2012		(125,381)
Accumulated deficit	(241,661,706)	(248,365,480)
Accumulated other comprehensive income	1,369,871	283,221
Total shareholders' equity	46,877,622	31,365,457
Total liabilities and shareholders' equity	$ 60,092,460	$ 36,868,664