Note 3 - Supplemental Balance Sheet Information

12 Months Ended

Dec. 31, 2012

Supplemental Balance Sheet Disclosures [Text Block]

3.           SUPPLEMENTAL BALANCE SHEET INFORMATION

Allowance for Doubtful Accounts

Activity in the allowance for doubtful accounts is summarized as follows for the years ended December 31 (in thousands):

	2012			2011		2010
Balance, at beginning of year	$	3,309		$	2,768	$	2,405
Charged to expense		428			397		451
Write-offs and adjustments		(485	)		144		(88	)
Balance, at end of year	$	3,252		$	3,309	$	2,768

Costs and Estimated Earnings on Uncompleted Contracts

Costs and estimated earnings on uncompleted contracts consisted of the following at December 31 (in thousands):

	2012			2011
Costs incurred on uncompleted contracts	$	667,231		$	599,242
Estimated earnings to date		184,322			171,983
Subtotal		851,553			771,225
Less – billings to date		(812,590	)		(727,977	)
Total	$	38,963		$	43,248
Included in the accompanying balance sheets:
Costs and estimated earnings in excess of billings		70,515			67,683
Billings in excess of costs and estimated earnings		(31,552	)		(24,435	)
Total	$	38,963		$	43,248

Costs and estimated earnings in excess of billings represent work performed that could not be billed either due to contract stipulations or the required contractual documentation has not been finalized. Substantially all unbilled amounts are expected to be billed and collected within one year.

Inventories

Inventories are summarized as follows at December 31 (in thousands):

	2012		2011
Raw materials and supplies	$	16,636	$	17,353
Work-in-process		8,876		6,767
Finished products		18,056		11,902
Construction materials		15,941		18,518
Total	$	59,509	$	54,540

Property, Plant and Equipment

Property, plant and equipment consisted of the following at December 31 (in thousands):

	Estimated Useful Lives (Years)			2012			2011
Land and land improvements				$	11,988		$	12,725
Buildings and improvements	5	–	40		64,706			64,810
Machinery and equipment	4	–	10		179,858			176,997
Furniture and fixtures	3	–	10		17,037			16,611
Autos and trucks	3	–	10		50,167			48,855
Construction in progress					36,048			15,263
Subtotal					359,804			335,261
Less – Accumulated depreciation					(173,838	)		(166,316	)
Total				$	185,966		$	168,945

Depreciation expense was $27.4 million, $28.9 million and $24.3 million for the years ended December 31, 2012, 2011 and 2010, respectively.

Accrued Expenses

Accrued expenses consisted of the following at December 31 (in thousands):

	2012		2011
Vendor and other accrued expenses	$	34,903	$	29,818
Estimated casualty and healthcare liabilities		12,899		13,684
Job costs		14,077		14,654
Accrued compensation		12,943		10,454
Income tax payable and deferred income taxes		6,418		807
Total	$	81,240	$	69,417