Consolidated Balance Sheets - USD ($)	Mar. 31, 2016	Dec. 31, 2015
Current Assets:
Cash	$ 30,102,144	$ 32,898,676
Short-term investments	12,009,000	15,012,225
Accounts receivable	7,976,760	7,952,478
Inventories	5,270,049	5,724,397
Deferred costs	2,049,330	1,199,217
Prepaid expenses and other current assets	3,178,256	3,274,254
Total current assets	60,585,539	66,061,247
Equipment, molds, furniture and fixtures, net	17,142,571	14,793,084
Patent rights, net	2,331,347	2,434,542
Goodwill	1,095,355	1,095,355
Other assets	153,826	177,943
Total Assets	81,308,638	84,562,171
Current Liabilities:
Accounts payable	6,960,444	5,187,703
Accrued expenses and other liabilities	8,530,420	6,488,032
Deferred revenue	5,254,028	5,143,825
Total current liabilities	20,744,892	16,819,560
Deferred revenue – long term	680,600	700,000
Total liabilities	$ 21,425,492	$ 17,519,560
Stockholders’ Equity:
Preferred Stock: $0.01 par, authorized 3,000,000 shares, none outstanding
Common Stock: $0.01 par; authorized 200,000,000 shares; 154,927,660 and 154,848,512 issued and outstanding at March 31, 2016 and December 31, 2015, respectively	$ 1,549,277	$ 1,548,485
Additional paid-in capital	295,792,964	295,292,414
Accumulated deficit	(236,762,612)	(229,106,502)
Accumulated other comprehensive loss	(696,483)	(691,786)
Total Stockholders' Equity	59,883,146	67,042,611
Total Liabilities and Stockholders’ Equity	$ 81,308,638	$ 84,562,171