Summary Of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2012

Summary Of Significant Accounting Policies [Abstract]

Schedule Of Supplemental Disclosures Of Cash Flow Information

	2012		2011		2010
Cash paid during the year for:
Interest	$	22	$	89	$	143
Income taxes		1,263		3,564		2,502
Non-cash investing and financing activities
Issuance of common stock for acquisition of PerClot
intangible assets	$	--	$	--	$	989
Initial value of derivative issued		--		--		620

Schedule Of Depreciation Expense

	2012		2011		2010
Depreciation expense	$	3,662	$	3,590	$	3,366