BALANCE SHEETS - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Current Assets:
Cash and cash equivalents	$ 2,689,464	$ 3,612,153
Accounts receivable, net of allowance for doubtful accounts of $58,684 in 2015 and $95,525 in 2014	3,538,765	4,078,133
Prepaid expenses and other current assets	1,060,587	689,995
Income tax receivable	840,122	1,819,743
Deferred tax assets	327,442	376,529
Total Current Assets	8,456,380	10,576,553
Property and equipment:
Computer software	2,745,214	2,361,388
Office furniture and equipment	1,209,307	1,068,264
Laboratory equipment	13,723,760	13,297,548
Leasehold Improvements	2,096,334	1,801,482
Property, Plant and Equipment, Gross, Total	19,774,615	18,528,682
Less - accumulated depreciation and amortization	(6,642,501)	(5,788,551)
Property, Plant and Equipment, Net, Total	13,132,114	12,740,131
Other assets	774,474	761,025
Total Assets	22,362,968	24,077,709
Current Liabilities:
Accounts payable	747,291	845,071
Accrued expenses	1,197,632	1,351,333
Current portion of long-term debt	1,619,633	1,399,925
Total Current Liabilities	3,564,556	3,596,329
Long-term debt	4,272,137	4,848,158
Deferred tax liabilities, long-term	2,852,745	2,796,666
Total Liabilities	$ 10,689,438	$ 11,241,153
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 6,090,671 shares issued in 2015 and 6,043,191 shares issued 2014, 5,422,541 shares outstanding in 2015 and 5,375,061 shares outstanding in 2014	30,453	30,216
Additional paid-in capital	30,021,604	29,454,023
Less - Treasury stock, at cost, 668,130 shares	(10,081,789)	(10,081,789)
Accumulated deficit	(8,296,738)	(6,565,894)
Total Shareholders' Equity	11,673,530	12,836,556
Total Liabilities and Shareholders' Equity	$ 22,362,968	$ 24,077,709