Condensed Consolidated Balance Sheets (Current Period Unaudited) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 9,065	$ 10,309
Trade and other receivables, less allowance for doubtful accounts of $571 and $751	16,835	27,567
Costs and estimated earnings in excess of billings on uncompleted contracts	47,894	42,592
Inventories	25,542	29,475
Refundable income taxes	349	3,413
Assets held for sale	6,607
Prepaid expenses and other	1,121	1,923
Total current assets	107,413	115,279
Property and equipment, less accumulated depreciation and amortization of $81,043 and $86,451	121,568	131,848
Other assets	11,800	12,253
Total assets	240,781	259,380
Current liabilities:
Current portion of capital lease obligations	384	340
Accounts payable	4,976	4,739
Accrued liabilities	14,271	15,971
Billings in excess of costs and estimated earnings on uncompleted contracts	929	520
Total current liabilities	20,560	21,570
Capital lease obligations, less current portion	739	718
Deferred income taxes	5,344	5,124
Pension and other long-term liabilities	12,450	14,408
Total liabilities	39,093	41,820
Stockholders’ equity:
Preferred stock, $.01 par value, 10,000,000 shares authorized, none issued or outstanding
Common stock, $.01 par value, 15,000,000 shares authorized, 9,596,335 and 9,564,752 shares issued and outstanding	96	96
Additional paid-in-capital	117,689	117,819
Retained earnings	85,358	101,183
Accumulated other comprehensive loss	(1,455)	(1,538)
Total stockholders’ equity	201,688	217,560
Total liabilities and stockholders’ equity	$ 240,781	$ 259,380

Carrying value as of the balance sheet date of liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Period Type:	instant

- Definition

Carrying value as of the balance sheet date of obligations incurred and payable, pertaining to costs that are statutory in nature, are incurred on contractual obligations, or accumulate over time and for which invoices have not yet been received or will not be rendered. Examples include taxes, interest, rent and utilities. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).