CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Operating activities
Net income	$ 19,040	$ 1,662	$ 9,843
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	8,176	11,705	11,958
Amortization of deferred financing costs and debt discount	832	872	1,209
Loss on extinguishment of debt	673	7,967
Stock-based compensation	1,873	4,029	732
Provision for losses on accounts receivable	47	445	133
Deferred income taxes	6,497	641	1,810
Changes in operating assets and liabilities:
Accounts receivable	2,974	(5,313)	(3,717)
Inventories	(524)	3,216	2,105
Prepaid and other assets and prepaid income taxes	201	1,437	(776)
Accounts payable	2,193	(2,323)	218
Accrued expenses and other current liabilities	4,554	(7,201)	1,127
Deferred compensation	(155)	(415)	(162)
Benefit obligations and other long-term liabilities	1,347	(945)	1,091
Net cash provided by operating activities	47,728	15,777	25,571
Investing activities
Capital expenditures	(2,373)	(3,009)	(8,200)
Proceeds from sale of equipment	67	226
Net cash used in investing activities	(2,306)	(2,783)	(8,200)
Financing activities
Stock repurchases		(166)	(1,000)
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	(3,471)	(2,605)
Proceeds from initial public offering, net		63,929
Borrowings on long-term debt	123,750	40,000
Dividends paid	(25,793)	(8,222)
Repayment of long-term debt	(122,450)	(151,509)	(850)
Net cash used in financing activities	(26,139)	(61,918)	(1,850)
Change in cash and cash equivalents	19,283	(48,924)	15,521
Cash and cash equivalents at beginning of year	20,149	69,073	53,552
Cash and cash equivalents at end of year	39,432	20,149	69,073
Supplemental disclosure of cash flow information
Income taxes paid	2,479	1,663	1,895
Interest paid	$ 7,767	$ 16,886	$ 14,410