Summary Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Net cash flows from operating activities:
Net income	$ 2,192	$ 991
Adjustments to reconcile net income to net cash from operating activities:
Depreciation and amortization	1,453	1,378
Non-cash compensation	782	753
Deferred income taxes	187	162
Other non-cash adjustments to income	398	136
Changes in operating assets and liabilities:
Receivables	(3,321)	(802)
Deferred preservation costs and inventories	1,153	(736)
Prepaid expenses and other assets	373	74
Accounts payable, accrued expenses, and other liabilities	(4,386)	(151)
Net cash flows (used in) provided by operating activities	(1,169)	1,805
Net cash flows from investing activities:
Capital expenditures	(988)	(700)
Other	(84)	(89)
Net cash flows used in investing activities	(1,072)	(789)
Net cash flows from financing activities:
Cash dividends paid	(687)
Proceeds from exercise of stock options and issuance of common stock	229	142
Repurchases of common stock	(1,203)	(1,643)
Other	(474)	(66)
Net cash flows used in financing activities	(2,135)	(1,567)
Decrease in cash and cash equivalents	(4,376)	(551)
Effect of exchange rate changes on cash	(1)	(8)
Cash and cash equivalents, beginning of period	13,009	21,705
Cash and cash equivalents, end of period	$ 8,632	$ 21,146