CONDENSED CONSOLIDATED STATEMENTS OF INCOME (USD $) In Thousands, except Per Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
NET SALES	$ 97,566	$ 81,256	$ 206,491	$ 153,551
COSTS AND EXPENSES:
Costs of operations	80,092	69,234	168,284	131,700
Selling, general and administrative expenses	7,697	6,677	15,846	13,154
Interest expense, net	214	76	360	186
Other (income) expense	(9)	48	(9)	90
Total costs and expenses	87,994	76,035	184,481	145,130
INCOME BEFORE INCOME TAXES	9,572	5,221	22,010	8,421
INCOME TAX PROVISION	3,796	2,064	8,790	3,255
NET INCOME	$ 5,776	$ 3,157	$ 13,220	$ 5,166
BASIC INCOME PER COMMON SHARE	$ 0.49	$ 0.27	$ 1.12	$ 0.44
DILUTED INCOME PER COMMON SHARE	$ 0.47	$ 0.26	$ 1.08	$ 0.43
CASH DIVIDENDS DECLARED PER COMMON SHARE	$ 0.12	$ 0.00	$ 0.24	$ 0.10
WEIGHTED AVERAGE SHARES OUTSTANDING:
Basic	11,884	11,659	11,823	11,647
Diluted	12,295	12,181	12,274	12,141