Consolidated Statements Of Cash Flows $ in Thousands, € in Millions	12 Months Ended
	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Net cash flows from operating activities:
Net income	$ 4,005	$ 7,322	$ 16,172
Adjustments to reconcile net income to net cash from operating activities:
Gain on sale of Medafor investment	(891)	(530)	(12,742)
Depreciation and amortization	5,863	6,028	5,843
Non-cash compensation	5,089	3,436	3,240
Other than temporary investment impairment			3,229
Write-down of inventories and deferred preservation costs	1,341	680	1,693
Deferred income taxes	3,681	178	617
Other non-cash adjustments to income	268	(474)	298
Changes in operating assets and liabilities:
Receivables	(3,809)	(4,556)	(1,637)
Inventories and deferred preservation costs	(2,262)	(1,131)	193
Prepaid expenses and other assets	(1,187)	(2,771)	(706)
Accounts payable, accrued expenses, and other liabilities	(656)	(64)	572
Net cash flows provided by operating activities	11,442	8,118	16,772
Net cash flows from investing activities:
Sales and maturities of restricted securities and investments	1,157	639
Proceeds from sale of Medafor investment	891	530	15,421
Capital expenditures	(3,490)	(4,310)	(4,338)
Acquisition of French distribution business	(1,349)
Purchases of restricted securities and investments	(1,085)	(1,208)	(20)
Acquisition of intangible assets	(613)	(1,010)	(196)
Other	3	6	10
Net cash flows (used in) provided by investing activities	(4,486)	(5,353)	10,877
Net cash flows from financing activities:
Proceeds from exercise of stock options and issuance of common stock	1,526	2,675	2,207
Cash dividends paid	(3,408)	(3,295)	(2,967)
Repurchases of common stock		(5,588)	(1,523)
Redemption and repurchase of stock to cover tax withholdings	(1,386)	(1,483)	(681)
Other	458	738	(87)
Net cash flows used in financing activities	(2,810)	(6,953)	(3,051)
Effect of exchange rate changes on cash	67	(80)	36
Increase (decrease) in cash and cash equivalents	4,213	(4,268)	24,634
Cash and cash equivalents, beginning of year	33,375	37,643	13,009
Cash and cash equivalents, end of year	$ 37,588	$ 33,375	$ 37,643