BALANCE SHEETS (USD $)	Dec. 31, 2012	Dec. 31, 2011
ASSETS
Cash and cash equivalents	$ 3,065,785	$ 5,564,233
Short term investments	0	0
Accounts receivable, net of allowance for doubtful accounts of $121,583 in 2012 and $169,191 in 2011	4,620,768	4,490,976
Prepaid expenses and other current assets	823,274	565,508
Income tax receivable	854,212	564,083
Deferred tax assets	209,877	315,501
Total Current Assets	9,573,916	11,500,301
Property and equipment:
Computer software	1,210,734	1,622,900
Office furniture and equipment	659,866	2,173,285
Laboratory equipment	6,634,043	8,363,371
Leasehold improvements	92,371	930,099
Property, Plant and Equipment, Gross	8,597,014	13,089,655
Less - accumulated depreciation and amortization	(4,395,605)	(11,026,278)
Property Plant and Equipment Net	4,201,409	2,063,377
Other assets	345,293	237,174
Total Assets	14,120,618	13,800,852
LIABILITIES AND SHAREHOLDERS' EQUITY
Accounts payable	669,789	961,844
Accrued expenses	1,413,541	1,321,856
Total Current Liabilities	2,083,330	2,283,700
Deferred tax liabilities, long-term	814,619	482,523
Total Liabilities	2,897,949	2,766,223
Commitments and Contingencies (Note 9)
Shareholders' Equity:
Preferred-stock, $0.005 par value, 872,521 shares authorized, no shares issued or outstanding	0	0
Common stock, $0.005 par value; 50,000,000 shares authorized 5,940,558 shares issued in 2012 and 5,903,552 shares issued 2011, 5,272,428 shares outstanding in 2012 and 5,235,422 shares outstanding in 2011	29,703	29,518
Additional paid-in capital	28,460,764	28,095,946
Less - Treasury stock, at cost, 668,130 shares	(10,081,789)	(10,081,789)
Accumulated deficit	(7,186,009)	(7,009,046)
Total Shareholders' Equity	11,222,669	11,034,629
Total Liabilities and Shareholders' Equity	$ 14,120,618	$ 13,800,852