Consolidated Balance Sheets (USD $)	Sep. 30, 2014	Dec. 31, 2013
Current Assets:
Cash and cash equivalents	$ 39,050,832	$ 39,067,236
Short-term investments	9,003,215	24,014,305
Accounts receivable	2,272,373	1,034,492
Inventories	7,992,961	6,461,051
Deferred costs	1,689,497	375,773
Prepaid expenses and other current assets	929,141	1,706,678
Total current assets	60,938,019	72,659,535
Equipment, molds, furniture and fixtures, net	9,668,417	6,952,251
Patent rights, net	2,960,864	1,345,177
Goodwill	1,095,355	1,095,355
Long-term investments		6,008,169
Other assets	871,168	871,444
Total Assets	75,533,823	88,931,931
Current Liabilities:
Accounts payable	8,030,911	6,378,712
Accrued expenses and other liabilities	5,980,708	5,453,075
Deferred revenue	6,891,503	4,531,220
Total current liabilities	20,903,122	16,363,007
Deferred revenue - long term	4,225,568	1,855,196
Total liabilities	25,128,690	18,218,203
Stockholders' Equity:
Preferred Stock: $0.01 par, authorized 3,000,000 shares, none outstanding
Common Stock: $0.01 par; authorized 200,000,000 shares; 131,592,798 and 128,740,604 issued and outstanding at September 30, 2014 and December 31, 2013, respectively	1,315,928	1,287,406
Additional paid-in capital	248,149,323	243,375,465
Accumulated deficit	(198,374,712)	(173,295,941)
Accumulated other comprehensive loss	(685,406)	(653,202)
Total Stockholders' Equity	50,405,133	70,713,728
Total Liabilities and Stockholders' Equity	$ 75,533,823	$ 88,931,931