CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Operating activities
Net income	$ 6,012	$ 19,040	$ 1,662
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	8,018	8,176	11,705
Amortization of deferred financing costs and debt discount	955	832	872
Loss on extinguishment of debt		673	7,967
Stock-based compensation	2,166	1,873	4,029
Provision for losses on accounts receivable	259	47	445
Deferred income taxes	8,090	6,497	641
Changes in operating assets and liabilities:
Accounts receivable	8,335	2,974	(5,313)
Inventories	(6,287)	(524)	3,216
Prepaid and other assets and refundable income taxes	(5,459)	201	1,437
Accounts payable	330	2,193	(2,323)
Accrued expenses and other current liabilities	(6,171)	4,554	(7,201)
Deferred compensation	(156)	(155)	(415)
Benefit obligations and other long-term liabilities	(473)	1,347	(945)
Net cash provided by operating activities	15,619	47,728	15,777
Investing activities
Capital expenditures	(1,446)	(2,373)	(3,009)
Proceeds from sale of equipment	80	67	226
Net cash used in investing activities	(1,366)	(2,306)	(2,783)
Financing activities
Stock repurchases			(166)
Proceeds from exercise of stock options		1,343
Payment of call premium and post payoff interest on senior notes redemption			(3,876)
Collection of shareholders' notes receivable		482	531
Payments of financing costs	(168)	(3,471)	(2,605)
Proceeds from initial public offering, net			63,929
Borrowings on long-term debt		123,750	40,000
Dividends paid	(18,231)	(25,793)	(8,222)
Repayment of long-term debt	(11,150)	(122,450)	(151,509)
Net cash used in financing activities	(29,549)	(26,139)	(61,918)
Change in cash and cash equivalents	(15,296)	19,283	(48,924)
Cash and cash equivalents at beginning of year	39,432	20,149	69,073
Cash and cash equivalents at end of year	24,136	39,432	20,149
Supplemental disclosure of cash flow information
Income taxes paid	1,558	2,479	1,663
Interest paid	$ 7,435	$ 7,767	$ 16,886