Commitments and Contingencies

12 Months Ended

Dec. 31, 2012

Commitments and Contingencies [Abstract]

Commitments and Contingencies Disclosure [Text Block]

9. Commitments and Contingencies

Commitments

The Company leases certain of its facilities and equipment under operating lease agreements expiring on various dates through April 2016. Total minimum lease payments, including scheduled increases, are charged to operations on the straight-line basis over the life of the respective lease. Rent expense was approximately $555,129, $548,000 and $558,000 in 2012, 2011 and 2010, respectively.

At December 31, 2012, minimum commitments remaining under lease agreements were approximately as follows:

	Amount
Years Ending December 31:
2013	$	608,000
2014		603,000
2015		546,000
2016		22,000
	$	1,779,000

Purchase Commitment

The Company has had a supply agreement with a vendor which required the Company to purchase isotopes used in its radioimmunoassay (RIAH) drug testing procedures. Purchases amounted to $609,965, $527,000, and $432,000 in 2012, 2011 and 2010 respectively. The Company expects to purchase $113,000 of isotopes in the first quarter of 2013. As a result of the conversion from RIAH to EIA testing methods, the supply agreement will terminate in March 2013, at which time, all transition activities are expected to be complete.

Contingencies

The Company is subject to legal proceedings and claims, which arise in the ordinary course of its business. The Company believes that although there can be no assurance as to the disposition of these proceedings, based upon information available to the Company at this time, the expected outcome of these matters would not have a material impact on the Company’s results of operations or financial condition.