CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Cash flows from operating activities:
Net income	$ 34,961	$ 7,673	$ 3,052
Gain on disposal	(29,550)
Depreciation and amortization	5,772	6,778	7,676
Deferred income taxes	(7,713)	1,981	(756)
Reversal of accrued contingent consideration	(778)
Provision for inventory reserves	454	255	556
Write-down and loss on disposal of assets held for sale	1,162	1,135	500
Other, net	39	357	174
Change in assets and liabilities:
Accounts receivable, net	(640)	518	(2,669)
Inventories, net	174	(439)	(2,482)
Accounts payable and accrued liabilities	948	(1,810)	1,700
Accounts with affiliates	12,200	(839)	2,520
Income taxes	(1,444)	471	2,704
Other, net	(1,762)	(108)	44
Net cash provided by operating activities	13,823	15,972	13,019
Cash flows from investing activities:
Net proceeds from sale of discontinued operations	58,027
Cash of disposed operations	(5,426)
Capital expenditures	(4,477)	(3,195)	(2,120)
Proceeds from sale of asset held for sale	3,555
Proceeds from sale of fixed assets	48	184
Acquisition, net of cash acquired		(4,752)
Purchase of promissory note receivable			(15,000)
Cash collected on promissory notes receivable		15,000
Note receivable from affiliate:
Advances			(9,000)
Collections			9,000
Net cash provided by (used in)investing activities	51,727	7,237	(17,120)
Cash flows from financing activities:
Borrowings under long-term debt		5,294	5,000
Repayment of long-term debt	(5,756)	(25,898)	(2,000)
Dividends paid	(6,195)	(6,192)	(6,187)
Other, net	(79)	62	(28)
Net cash used in financing activities	(12,030)	(26,734)	(3,215)
Net increase (decrease) from-Operating, investing and financing activities	53,520	(3,525)	(7,316)
Cash and cash equivalents:
Net increase (decrease) from-Operating, investing and financing activities	53,520	(3,525)	(7,316)
Effect of exchange rate on cash	176	(313)	447
Balance at beginning of year	10,081	13,919	20,788
Balance at end of year	63,777	10,081	13,919
Supplemental disclosures:
Cash paid for Interest	439	1,611	278
Cash paid for Income taxes	3,966	5,822	1,241
Noncash investing and financing activities:
Accrual for capital expenditures	$ 484	$ 178	$ 159