Condensed Consolidated Balance Sheets (USD $) In Thousands	6 Months Ended	12 Months Ended
	Jun. 30, 2011	Dec. 31, 2010
Current assets
Cash and cash equivalents	$ 32,066	$ 36,716
Accounts receivable, less allowances of $3,278 and $3,848	163,753	128,365
Inventories, principally on last-in, first-out basis (replacement cost higher by $129,776 and $122,340)	174,884	130,917
Prepaid expenses and other current assets	8,069	6,832
Income tax receivable	2,247	8,192
Total current assets	381,019	311,022
Investment in joint venture	32,384	27,879
Goodwill	50,134	50,110
Intangible assets	38,143	41,427
Prepaid pension cost	19,765	18,580
Other assets	3,270	3,619
Property, plant and equipment
Land	5,197	5,195
Building	52,282	52,277
Machinery and equipment	168,434	182,178
Property, plant and equipment, at cost	225,913	239,650
Less - accumulated depreciation	(150,534)	(162,935)
Property, plant and equipment, net	75,379	76,715
Total assets	600,094	529,352
Current liabilities
Accounts payable	120,702	71,764
Accrued liabilities	26,012	31,320
Income taxes payable	2,341	2,357
Deferred income taxes	2,358	2,461
Current portion of long-term debt	7,945	8,012
Short-term debt	15,200	0
Total current liabilities	174,558	115,914
Long-term debt, less current portion	63,538	61,127
Deferred income taxes	25,479	26,754
Other non-current liabilities	3,247	3,390
Pension and post retirement benefit obligations	8,932	8,708
Commitments and contingencies
Stockholders' equity
Preferred stock, $0.01 par value - 10,000 shares authorized; no shares issued and outstanding at June 30, 2011 and December 31, 2010	0	0
Common stock, $0.01 par value - 30,000 shares authorized; 23,159 shares issued and 23,039 outstanding at June 30, 2011 and 23,149 shares issued and 22,986 outstanding at December 31, 2010	232	231
Additional paid-in capital	182,101	180,519
Retained earnings	157,147	150,747
Accumulated other comprehensive loss	(13,615)	(15,812)
Treasury stock, at cost - 120 shares at June 30, 2011 and 163 shares at December 31, 2010	(1,525)	(2,226)
Total stockholders' equity	324,340	313,459
Total liabilities and stockholders' equity	$ 600,094	$ 529,352