CONDENSED CONSOLIDATED BALANCE SHEETS (unaudited) (USD $)	Sep. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 47,253,003	$ 44,077,751
Accounts receivable, net	23,304,472	16,092,836
Inventory, net	4,738,690	3,880,776
Prepaid expenses and other current assets	1,968,290	1,337,408
Total current assets	77,264,455	65,388,771
Property and equipment, net of accumulated depreciation	5,052,209	4,086,106
Goodwill	4,040,443	4,040,443
Intangible assets, net of accumulated amortization	10,960,300	11,178,573
Total assets	97,317,407	84,693,893
Current liabilities:
Accounts payable	2,759,409	2,490,531
Accrued compensation	9,448,245	5,588,811
Accrued expenses	1,989,997	1,405,974
Other current liabilities	251,578	122,551
Total current liabilities	14,449,229	9,607,867
Other liabilities	1,611,927	1,517,956
Total liabilities	16,061,156	11,125,823
Commitments and contingencies (Note 11)	0	0
Stockholders' equity:
Preferred stock; $.001 par value; 5,000,000 shares authorized and 0 shares issued and outstanding	0	0
Common stock; $.001 par value; 130,000,000 shares authorized; 107,834,036 issued and 106,889,570 outstanding as of September 30, 2014 and 104,425,614 issued and 104,375,614 outstanding as of December 31, 2013	107,834	104,426
Additional paid-in capital	157,893,595	147,284,219
Treasury stock (944,466 shares as of September 30, 2014 and 50,000 shares as of December 31, 2013 at cost)	(5,337,077)	(25,000)
Accumulated deficit	(71,408,101)	(73,795,575)
Total stockholders' equity	81,256,251	73,568,070
Total liabilities and stockholders' equity	$ 97,317,407	$ 84,693,893