Northwest Pipe (NWPX) 10-K 16 Mar 18 2017 FY Annual report Financial data

Document And Entity Information

Document And Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2017	Feb. 23, 2018	Jun. 30, 2017
Document Information [Line Items]
Entity Registrant Name	Northwest Pipe Co.
Entity Central Index Key	1,001,385
Trading Symbol	nwpx
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Well-known Seasoned Issuer	No
Entity Common Stock, Shares Outstanding (in shares)		9,723,883
Entity Public Float			$ 134,068,871
Document Type	10-K
Document Period End Date	Dec. 31, 2017
Document Fiscal Year Focus	2,017
Document Fiscal Period Focus	FY
Amendment Flag	false

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2017		Dec. 31, 2016		Dec. 31, 2015
Net sales	$ 132,780		$ 149,387		$ 173,160
Cost of sales	126,957		149,704		172,554
Gross profit (loss)	5,823	[1]	(317)		606
Selling, general and administrative expense	14,143		16,921		20,378
Impairment of goodwill					5,282
Gain on sale of facility			(7,860)
Restructuring expense	881		990
Operating loss	(9,201)		(10,368)	[2]	(25,054)
Other income	193		24		58
Interest income	6		14		1
Interest expense	(490)		(509)		(1,340)
Loss from continuing operations before income taxes	(9,492)		(10,839)		(26,335)
Income Tax Expense (Benefit)	(1,100)		(4,098)		(8,523)
Loss from continuing operations	(8,392)		(6,741)		(17,812)
Discontinued operations:
Loss from operations of discontinued operations	(1,779)		(3,180)		(15,004)
Gain on sale of facility	6
Income tax benefit	(2)		(658)		(3,428)
Loss on discontinued operations	(1,771)		(2,522)		(11,576)
Net loss	$ (10,163)		$ (9,263)		$ (29,388)
Basic and diluted loss per share:
Continuing operations (in dollars per share)	$ (0.88)		$ (0.71)		$ (1.86)
Discontinued operations (in dollars per share)	(0.18)		(0.26)		(1.21)
Net loss per share (in dollars per share)	$ (1.06)		$ (0.97)		$ (3.07)
Shares used in per share calculations:
Basic and diluted (in shares)	9,613		9,588		9,560
[1]	Gross profit for the fourth quarter of 2017 includes a charge of $1.2 million to cost of sales as a result of a change in estimate to workers compensation reserves.
[2]	Operating income for the fourth quarter of 2016 includes the gain on sale of facility of $7.9 million.

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Net loss	$ (10,163)	$ (9,263)	$ (29,388)
Other comprehensive income (loss), net of tax:
Pension liability adjustment	57	131	238
Unrealized gain (loss) on cash flow hedges	(19)	(76)	57
Other comprehensive income, net of tax	38	55	295
Comprehensive loss	$ (10,125)	$ (9,208)	$ (29,093)

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 43,646	$ 21,829
Trade and other receivables, less allowance for doubtful accounts of $477 and $515	28,990	25,555
Costs and estimated earnings in excess of billings on uncompleted contracts	44,502	43,663
Inventories	17,055	18,645
Prepaid expenses and other	6,562	2,096
Assets held for sale		36,822
Total current assets	140,755	148,610
Property and equipment, net	78,756	81,671
Other assets	10,813	11,274
Total assets	230,324	241,555
Current liabilities:
Accounts payable	7,521	5,267
Accrued liabilities	6,563	10,925
Billings in excess of costs and estimated earnings on uncompleted contracts	2,599	2,038
Current portion of capital lease obligations	318	325
Total current liabilities	17,001	18,555
Capital lease obligations, less current portion	737	602
Deferred income taxes	941	1,282
Other long-term liabilities	11,381	11,903
Total liabilities	30,060	32,342
Commitments and contingencies (Note 15)
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, 9,619,755 and 9,601,011 shares issued and outstanding	96	96
Additional paid-in-capital	119,856	118,680
Retained earnings	81,757	91,920
Accumulated other comprehensive loss	(1,445)	(1,483)
Total stockholders’ equity	200,264	209,213
Total liabilities and stockholders’ equity	$ 230,324	$ 241,555

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Allowance for doubtful accounts	$ 477	$ 515
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	10,000,000	10,000,000
Preferred stock, shares issued (in shares)	0	0
Preferred stock, shares outstanding (in shares)	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	15,000,000	15,000,000
Common stock, shares issued (in shares)	9,619,755	9,601,011
Common stock, shares outstanding (in shares)	9,619,755	9,601,011

Consolidated Statements of Stoc

Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	AOCI Attributable to Parent [Member]	Total
Balances (in shares) at Dec. 31, 2014	9,520,067
Beginning balance at Dec. 31, 2014	$ 95	$ 116,802	$ 130,571	$ (1,833)	$ 245,635
Net loss			(29,388)		(29,388)
Unrealized gain (loss) on cash flow hedges, net of tax				57	57
Pension liability adjustment, net of tax				238	238
Issuance of common stock under stock compensation plans (in shares)	44,685
Issuance of common stock under stock compensation plans	$ 1	(424)			(423)
Tax benefit from stock compensation plans		19			19
Tax deficiency from stock compensation plans		(352)			(352)
Share-based compensation expense		1,774			1,774
Balances (in shares) at Dec. 31, 2015	9,564,752
Ending balance at Dec. 31, 2015	$ 96	117,819	101,183	(1,538)	217,560
Net loss			(9,263)		(9,263)
Unrealized gain (loss) on cash flow hedges, net of tax				(76)	(76)
Pension liability adjustment, net of tax				131	131
Issuance of common stock under stock compensation plans (in shares)	36,259
Issuance of common stock under stock compensation plans		(31)			(31)
Tax deficiency from stock compensation plans		(909)			(909)
Share-based compensation expense		1,801			1,801
Balances (in shares) at Dec. 31, 2016	9,601,011
Ending balance at Dec. 31, 2016	$ 96	118,680	91,920	(1,483)	209,213
Net loss			(10,163)		(10,163)
Unrealized gain (loss) on cash flow hedges, net of tax				(19)	(19)
Pension liability adjustment, net of tax				57	57
Issuance of common stock under stock compensation plans (in shares)	18,744
Issuance of common stock under stock compensation plans		(24)			(24)
Share-based compensation expense		1,200			1,200
Balances (in shares) at Dec. 31, 2017	9,619,755
Ending balance at Dec. 31, 2017	$ 96	$ 119,856	$ 81,757	$ (1,445)	$ 200,264

Consolidated Statements of Sto7

Consolidated Statements of Stockholders' Equity (Parentheticals) - AOCI Attributable to Parent [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Unrealized gain (loss) on cash flow hedges, tax expense (benefit)	$ (6)	$ (43)	$ 34
Pension liability adjustment, tax expense	$ 21	$ 82	$ 237

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Cash flows from operating activities:
Net loss	$ (10,163)	$ (9,263)	$ (29,388)
Loss on discontinued operations	(1,771)	(2,522)	(11,576)
Loss from continuing operations	(8,392)	(6,741)	(17,812)
Adjustments to reconcile loss from continuing operations to net cash provided by (used in) operating activities:
Depreciation and capital lease amortization	6,060	8,768	7,332
Impairment of goodwill			5,282
Gain on sale of facility		(7,860)
Amortization of intangible assets	495	523	523
Amortization of debt issuance costs	168	166	598
Provision for doubtful accounts	638	289	(374)
Deferred income taxes	(341)	(4,750)	(3,560)
(Gain) loss on disposal of property and equipment	(51)	19	105
Share-based compensation expense	1,200	1,809	1,743
Excess tax benefit from stock compensation plans			(19)
Adjustments to contingent consideration	27	(1,657)	(211)
Unrealized loss on foreign currency forward contracts	90	170	295
Changes in operating assets and liabilities:
Trade and other receivables	(4,073)	80	15,717
Insurance settlements			2,625
Costs and estimated earnings in excess of billings on uncompleted contracts, net	(278)	447	940
Inventories	1,543	5,728	9,934
Refundable income taxes	(77)	3,254	1,285
Prepaid expenses and other assets	(138)	(630)	1,196
Accounts payable	2,128	1,048	(8,199)
Deferred revenue			(271)
Accrued and other liabilities	(4,792)	(2,456)	3,694
Net cash provided by (used in) operating activities from continuing operations	(5,793)	(1,793)	20,823
Net cash provided by (used in) operating activities from discontinued operations	(1,727)	3,312	34,383
Net cash provided by (used in) operating activities	(7,520)	1,519	55,206
Cash flows from investing activities:
Additions to property and equipment	(2,851)	(2,292)	(6,831)
Proceeds from sale of business			4,300
Proceeds from sale of facility		13,914
Proceeds from sale of property and equipment	146	33	55
Collections on notes receivable			7,219
Net cash provided by (used in) investing activities from continuing operations	(2,705)	11,655	4,743
Net cash provided by (used in) investing activities from discontinued operations	32,505		(1,684)
Net cash provided by investing activities	29,800	11,655	3,059
Cash flows from financing activities:
Proceeds from issuance of common stock			1
Tax withholdings related to net share settlements of restricted stock and performance share awards	(24)	(31)	(424)
Excess tax benefit from stock compensation plans			19
Borrowings on line of credit			79,250
Repayments on line of credit			(124,837)
Payments of debt issuance costs			(302)
Payments on capital lease obligations	(327)	(279)	(1,270)
Payments of contingent consideration	(112)	(1,233)
Net cash used in financing activities from continuing operations	(463)	(1,543)	(47,563)
Net cash used in financing activities from discontinued operations		(111)	(920)
Net cash used in financing activities	(463)	(1,654)	(48,483)
Change in cash and cash equivalents	21,817	11,520	9,782
Cash and cash equivalents, beginning of period	21,829	10,309	527
Cash and cash equivalents, end of period	43,646	21,829	10,309
Supplemental disclosure of cash flow information:
Cash paid during the period for interest, net of amounts capitalized	258	283	846
Cash received during the period for income taxes (net of refunds of $213, $3,427 and $7,949)	(153)	(3,322)	(7,743)
Noncash investing and financing activities:
Accrued property and equipment purchases	184	59	397
Capital lease additions	455	259	854
Proceeds from sale of facility placed in escrow	$ 4,465

Consolidated Statements of Cas9

Consolidated Statements of Cash Flows (Parentheticals) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Tax refunds	$ 213	$ 3,427	$ 7,949

Note 1 - Organization

Note 1 - Organization	12 Months Ended
	Dec. 31, 2017
Notes to Financial Statements
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	1. ORGANIZATION : Northwest Pipe Company (collectively with its subsidiaries, t he “Company”) operates in one

Note 2 - Summary of Significant

Note 2 - Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2017
Notes to Financial Statements
Significant Accounting Policies [Text Block]	2 . SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES: Use of Estimates The preparation of the Consolidated Financial Statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and judgments that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. The Company bases its estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances. On an ongoing basis, the Company evaluates all of its estimates, including those related to allowance for doubtful accounts, inventories, long-lived assets (including depreciation and amortization), revenue recognition, share-based compensation, income taxes and litigation and other contingencies. Actual results may Basis of Consolidation and Presentation The Consolidated Financial Statements include the accounts of Northwest Pipe Company and its subsidiaries over which the Company exercises control as of the financial statement date. Intercompany accounts and transactions have been eliminated. Lucid Energy Inc. (“Lucid”) is accounted for under the cost-method of accounting. Lucid is a clean energy company based in Portland, Oregon. The carrying value of this investment is $0 December 31, 2017 2016 Cash and Cash Equivalents Cash and cash equivalents consist of cash and short -term, highly liquid investments with maturities of three no December 31, 2017 2016. Receivables and Allowance for Doubtful Accounts Trade receivables are reported on the Consolidated Balance Sheet net of doubtful accounts. The Company maintains allowances for estimated losses resulting from the inability of its customers to make required payments or from contract disputes. The amounts of such allowances are based on Company history and management’s judgment. At least monthly, the Company reviews past due balances to identify the reasons for non-payment. The Company will write off a receivable account once the account is deemed uncollectible. The Company believes the reported allowances as of December 31, 2017 2016 may Inventories As of December 31, 2016, No. 2015 11, 330 January 1, 2017, not first first Property and Equipment Property and equipment is stated at cost. Maintenance and repairs are expensed as incurred, and costs of new equipment and buildings, as well as costs of expansions or refurbishment of existing equipment and buildings, including interest where applicable, are capitalized. Depreciation and amortization are determined by the units of production method for most equipment and by the straight-line method for the remaining assets based on the estimated useful lives of the related assets. Estimated useful lives by major classes of property and equipment are as follows: Land improvements ( 15 30 20 40 3 30 may The Company assesses impairment of property and equipment whenever changes in circumstances indicate that the carrying values of the asset or asset group(s) may not Goodwill Goodwill represents the excess of purchase price over the assigned fair values of the net assets in connection with an acquisition. Goodwill is reviewed for impairment annually as of December 31 may one December 31, 2017 2016, 2015, $5.3 million was quantitatively evaluated using a weighted average of the income and market approaches. The Company determined that its goodwill was impaired as of June 30, 2015, second 2015. In evaluating goodwill, the Company looks at the long-term prospects for the reporting unit and recognizes that current performance may not Intangible Assets Intangible assets consist primarily of customer relationships, patents and trade names and trademarks recorded as the result of acquisition activity. Intangible assets are amortized using the straight-line method over estimated useful lives ranging from 4 15 See Note 7, Workers Compensation The Company is self-insured, or maintains high deductible policies, for losses and liabilities associated with workers compensation claims. Losses are accrued based upon the Company ’s estimates of the aggregate liability for claims incurred using historical experience and certain actuarial assumptions followed in the insurance industry. During the fourth 2017, $1.2 2016 2015, no December 31, 2017 2016, $3.7 $3.4 $0.4 $0.6 $3.3 $2.8 Accrued Liabilities Accrued liabilities consist of the following (in thousands): December 31 , 201 7 201 6 Accrued liabilities : Accrued vacation payabl e $ 1,886 $ 2,313 Reserves for expected losses on uncompleted contract s 911 1,409 Accrued property taxe s 898 1,096 Workers compensation reserve s 422 569 Litigation accrua l - 1,750 Othe r 2,446 3,788 Total accrued liabilitie s $ 6,563 $ 10,925 Derivative Instruments The Company conducts business in various foreign countries and, from time to time, settles transactions in foreign currencies. The Company has established a program that utilizes foreign currency forward contracts to offset the risk associated with the effects of certain foreign currency exposures, typically arising from sales contracts denominated in Canadian currency. Foreign currency forward contracts are consistent with the Company’s strategy for financial risk management. The Company utilizes cash flow hedge accounting treatment for qualifying foreign currency forward contracts. Instruments that do not Pension Benefits The Company has two 2001. Foreign Currency Transactions Assets and liabilities subject to foreign currency fluctuations are translated into United States dollars at the period-end exchange rate, and revenue and expenses are translated at exchange rates representing an average for the period. Translation adjustments from designated hedges are included in Accumulated other comprehensive loss as a separate component of Stockholders’ equity. Gains or losses on all other foreign currency transactions are recognized in the Consolidated Statement of Operations. The functional currency of the Company’s Mexican operations is the United States dollar. Revenue Recognition Revenue from construction contracts is recognized on the percentage-of-completion method . For a majority of contracts, revenue is measured by the costs incurred to date as a percentage of the estimated total costs of each contract (cost-to-cost method). For a small number of contracts, revenue is measured using units of delivery as progress is best estimated by the number of units delivered under the contract. Contract costs include all direct material and labor costs and those indirect costs related to contract performance, such as indirect labor, supplies, tools, repairs and depreciation. Selling, general and administrative costs are charged to expense as incurred. The cost of steel is recognized as a project cost when the steel is introduced into the manufacturing process. The Company begins recognizing revenue on a project when persuasive evidence of an arrangement exists, recoverability is reasonably assured, and project costs are incurred. Costs may Changes in job performance, job conditions and estimated profitability, including those arising from contract change orders, contract penalty provisions, foreign currency exchange rate movements, changes in raw materials costs and final contract settlements may See “ Recent Accounting and Reporting Developments” below for discussion regarding the expected impact of the adoption of new guidance for revenue recognition effective in the first 2018. No customer accounted for 10% December 31, 2017. One 28% December 31, 2016 two 16 13% December 31, 2015 Net sales from continuing operations by geographic region, based on the location of the customer, were as follows (in thousands): Year Ended December 31, 201 7 201 6 201 5 Net sales from continuing operations by geographic region : United State s $ 122,179 $ 137,411 $ 161,243 Canad a 10,601 11,976 11,917 Tota l $ 132,780 $ 149,387 $ 173,160 Share-based Compensation The Company recognizes the compensation cost of employee and director services received in exchange for awards of equity instruments based on the grant date estimated fair value of the awards. Share-based compensation cost is recognized over the period during which the employee or director is required to provide service in exchange for the award, and as forfeitures occur, the associated compensation cost recognized to date is reversed. The Company estimates the fair value of restricted stock units (“RSUs”) and performance share awards (“PSAs”) using the value of the Company’s stock on the date of grant, with the exception of market-based PSAs, for which a Monte Carlo simulation model is used. The Monte Carlo simulation model requires the use of subjective and complex assumptions including the price volatility of the underlying stock. The expected stock price volatility assumption is determined using the historical volatility of the Company’s and a comparator group of companies’ stock over the most recent historical period equivalent to the expected life. The Monte Carlo simulation model calculates many potential outcomes for an award and estimates fair value based on the most likely outcome. See Note 13, Income Taxes Income taxes are recorded using an asset and liability approach that requires the recognition of deferred income tax assets and liabilities for the expected future income tax consequences of events that have been recognized in the Company’s financial statements or income tax returns. Valuation allowances are established when necessary to reduce deferred income tax assets to the amount expected to be realized. The determination of the provision for income taxes requires significant judgment, the use of estimates and the interpretation and application of complex tax laws. The provision for income taxes primarily reflects a combination of income earned and taxed in the various United States federal and state and, to a lesser extent, foreign jurisdictions. Jurisdictional tax law changes, increases or decreases in permanent differences between book and tax items, accruals or adjustments of accruals for unrecognized income tax benefits or valuation allowances and the change in the mix of earnings from these taxing jurisdictions all affect the overall effective income tax rate. The Company records income tax reserves for federal, state, local and international exposures relating to periods subject to audit. The development of reserves for these exposures requires judgments about tax issues, potential outcomes and timing, and is a subjective estimate. The Company assesses income tax positions and records income tax benefits for all years subject to examination based upon management’s evaluation of the facts, circumstances and information available at the reporting dates. For those income tax positions where it is more-likely-than- not 50% not not no Accumulated Other Comprehensive Loss Accumulated other comprehensive loss includes unrealized gains and losses on derivative instruments related to the effective portion of cash flow hedges and changes in the funded status of the defined benefit pension plans, both net of the related income tax effect. For further information, refer to Note 17, Net Loss per Share Basic net loss per share is computed by dividing the net loss by the weighted-average number of shares of common stock outstanding during the period . Diluted net loss per share is computed by giving effect to all potential shares of common stock, including stock options, restricted stock units and performance share awards, to the extent dilutive. Since the Company was in a loss position for all periods presented, basic and diluted net loss per share was the same for each period presented as the inclusion of all potential common shares outstanding would have been antidilutive. L oss per basic and diluted weighted-average common share outstanding was calculated as follows (in thousands, except per share data): Year Ended December 31, 201 7 201 6 201 5 Loss from continuing operation s $ (8,392 ) $ (6,741 ) $ (17,812 ) Loss on discontinued operation s (1,771 ) (2,522 ) (11,576 ) Net los s $ (10,163 ) $ (9,263 ) $ (29,388 ) Basic weighted-average common shares outstandin g 9,613 9,588 9,560 Effect of potentially dilutive common shares (1 ) - - - Diluted weighted-average common shares outstandin g 9,613 9,588 9,560 Basic and diluted loss per common share : Continuing operation s $ (0.88 ) $ (0.71 ) $ (1.86 ) Discontinued operation s (0.18 ) (0.26 ) (1.21 ) Net loss per shar e $ (1.06 ) $ (0.97 ) $ (3.07 ) ( 1 The weighted -average number of antidilutive shares not 196,000, 198,000 179,000 December 31, 2017, 2016 2015, Concentrations of Credit Risk Financial instruments, which potentially subject the Company to concentrations of credit risk, consist principally of trade receivables, derivative contracts and deferred compensation plan assets. Trade receivables generally represent a large number of customers, including municipalities, manufacturers, distributors and contractors, dispersed across a wide geographic base. As of December 31, 2017 2016, two 10% Recent Accounting and Reporting Developments Accounting Changes In July 2015, No. 2015 11, 330 2015 11” 2015 11, first 2015 11. January 1, 2017 not In March 2016, No. 2016 09, 718 2016 09” 2016 09 January 1, 2017, $0.8 December 31, 2017. Recent Accounting Standards In May 2014, No. 2014 09, 606 2014 09” 2014 09 2014 09 2014 09 January 1, 2018. 2016 2017, 2014 09 not The Company has finalized its analysis of the adoption of ASU 2014 09, not 2014 09 January 1, 2018 $1 Previously reported results will not 2014 09, five In January 2016, Accounting Standards Update No. 2016 01, 825 10 2016 01” 2016 01 2016 01 January 1, 2018. February 2018, No. 2018 03, 825 10 2018 03” 2018 03 2016 01. 2018 03 July 1, 2018. 2016 01 The Company does not In February 2016, No. 2016 02, 842 2016 02” 2016 02 twelve not 2016 02 January 1, 2019, 2019. 2016 02 not 2016 02, 2016 02 not 2016 02 . In August 2016, No. 2016 15, 230 2016 15” 2016 15 eight not 2016 15 January 1, 2018. not In March 2017, No. 2017 07, 715 2017 07” 2017 07 January 1, 2018. 2017 07 no no $0 $0.4 December 31, 2017 2016, In August 2017, No. 2017 12, 815 2017 12” 2017 12 January 1, 2019. not 2017 12 In February 2018, No. 2018 02, 220 2018 02” 2017 2018 02 January 1, 2019. not 2018 02, not

Note 3 - Discontinued Operation

Note 3 - Discontinued Operations	12 Months Ended
	Dec. 31, 2017
Notes to Financial Statements
Disposal Groups, Including Discontinued Operations, Disclosure [Text Block]	3 . DISCONTINUED OPERATIONS : On December 26, 2017, $37.2 $0.75 2018 $3.7 twelve In accordance with applicable accounting guidance, the related assets of the Company’s Atchison facility are classified as current Assets held for sale in the Consolidated Balance Sheets for periods presented prior to the sale, and the financial results of the Atchison facility are presented as discontinued operations in the Consolidated Statements of Operations for all periods. Cash flows from the Company’s discontinued operations are presented separately in the Consolidated Statements of Cash Flows. business, the Company now operates in only one The table below presents the components of the balance sheet accounts associated with the Atchison facility which were reported as current Assets held for sale on the Consolidated Balance Sheets (in thousands). December 31, 201 7 201 6 Asset s Inventorie s $ - $ 392 Property and equipment, ne t - 36,430 Total assets $ - $ 36,822 The table below presents the operating results for the Company ’s discontinued operations (in thousands). Year Ended December 31, 201 7 201 6 201 5 Net sales $ 12 $ 6,869 $ 63,448 Cost of sales 1,792 9,777 76,679 Gross loss (1,780 ) (2,908 ) (13,231 ) Selling, general and administrative expense (1 ) 257 1,925 Gain on sale of facility (6 ) - - Operating loss (1,773 ) (3,165 ) (15,156 ) Other income (expense) - (1 ) 30 Interest income - - 172 Interest expense - (14 ) (50 ) Loss before income taxes (1,773 ) (3,180 ) (15,004 ) Income tax benefit (2 ) (658 ) (3,428 ) Net loss $ (1,771 ) $ (2,522 ) $ (11,576 ) In April 2015, December 31, 2015 $0.6 $0.5 $0.1

Note 4 - Cost and Estimated Ear

Note 4 - Cost and Estimated Earnings in Excess of Billings on Uncompleted Contracts and Billings in Excess of Costs and Estimated Earnings	12 Months Ended
	Dec. 31, 2017
Notes to Financial Statements
Costs and Estimated Earnings in Excess of Billings on Uncompleted Contracts and Billings in Excess of Costs and Estimated Earnings [Text Block]	4 . COSTS AND ESTIMATED EARNINGS IN EXCESS OF BILLINGS ON UNCOMPLETED CONTRACTS AND BILLINGS IN EXCESS OF COSTS AND ESTIMATED EARNINGS: C osts and estimated earnings in excess of billings on uncompleted contracts represents revenue earned under the percentage-of-completion method but not December 31 , 201 7 201 6 (in thousands ) Costs incurred on uncompleted contract s $ 227,048 $ 238,050 Estimated earning s 9,722 7,247 236,770 245,297 Less billings to dat e (194,867 ) (203,672 ) $ 41,903 $ 41,625 Amounts are presented in the Consolidated Balance Sheets as follows : Costs and estimated earnings in excess of billings on uncompleted contract s $ 44,502 $ 43,663 Billings in excess of costs and estimated earnings on uncompleted contract s (2,599 ) (2,038 ) $ 41,903 $ 41,625

Note 5 - Inventories

Note 5 - Inventories	12 Months Ended
	Dec. 31, 2017
Notes to Financial Statements
Inventory Disclosure [Text Block]	5 . INVENTORIES: Inventories consist of the following (in thousands): December 31 , 201 7 201 6 Short-term inventories : Raw material s $ 13,700 $ 15,411 Work-in-proces s 1,268 1,235 Finished good s 464 40 Supplie s 1,623 1,959 Total short-term inventorie s 17,055 18,645 Long-term inventories : Finished good s 820 773 Total inventorie s $ 17,875 $ 19,418 Long-term inventories are recorded in Other assets.

Note 6 - Property and Equipment

Note 6 - Property and Equipment	12 Months Ended
	Dec. 31, 2017
Notes to Financial Statements
Property, Plant and Equipment Disclosure [Text Block]	6 . PROPERTY AND EQUIPMENT: Property and equipment , net consists of the following (in thousands): December 31 , 201 7 201 6 Land and improvement s $ 20,185 $ 19,787 Building s 30,301 30,219 Machinery and equipmen t 100,438 99,485 Equipment under capital leas e 1,171 1,126 Construction in progres s 972 531 153,067 151,148 Less accumulated depreciation and amortizatio n (74,311 ) (69,477 ) Property and equipment, ne t $ 78,756 $ 81,671 Accumulated amortization associated with equipment under capital lease was $0.5 $0.6 December 31, 2017 2016, All property and equipment is located in the United States, except for $ 3.8 $4.1 December 31, 2017 2016, On October 4, 2016, $13.9 $7.9 fourth 2016. March 1, 2017,

Note 7 - Intangible Assets

Note 7 - Intangible Assets	12 Months Ended
	Dec. 31, 2017
Notes to Financial Statements
Intangible Assets Disclosure [Text Block]	7 . INTANGIBLE ASSETS : Intangible assets , included in Other assets on the Consolidated Balance Sheets, consist of the following (in thousands): Gross Carryin g Accumulate d Intangibl e Amoun t Amortizatio n Assets, Ne t As of December 31, 201 7 Customer relationship s $ 1,378 $ (551 ) $ 827 Patent s 1,162 (929 ) 233 Trade names and trademark s 1,132 (302 ) 830 Other (1 ) 176 (163 ) 13 Tota l $ 3,848 $ (1,945 ) $ 1,903 As of December 31, 201 6 Customer relationship s $ 1,378 $ (413 ) $ 965 Patent s 1,162 (697 ) 465 Trade names and trademark s 1,132 (226 ) 906 Other (1 ) 295 (233 ) 62 Tota l $ 3,967 $ (1,569 ) $ 2,398 ( 1 The estimated amortization expense for each of the next five Year ending December 31 , 201 8 $ 459 201 9 213 202 0 213 202 1 213 202 2 213 Thereafte r 592 $ 1,903

Note 8 - Line of Credit

Note 8 - Line of Credit	12 Months Ended
	Dec. 31, 2017
Notes to Financial Statements
Debt Disclosure [Text Block]	8 . LINE OF CREDIT : T he Company’s Loan and Security Agreement (the “Agreement”) with Bank of America, N.A, as amended, expires on October 25, 2018 $60 $100 Borrowings under the Agreement bear interest at rates related to London Interbank Offered Rate plus 1.75% 2.25%, 0.75% 1.25%. December 31, 2017 2016, no December 31, 2017, $19.1 The Agreement also contains customary representations, warranties and events of default, which include the occurrence of events or circumstances which have a Material Adverse Effect, as defined in the Agreement. Payment of outstanding advances may In October 2015, $0.4 Interest expense from continuing operations from line of credit borrowings and capital leases was $0.5 2017, $0.5 2016 $1.3 $0.1 2015. No 2016.

Note 9 - Leases

Note 9 - Leases	12 Months Ended
	Dec. 31, 2017
Notes to Financial Statements
Leases of Lessee Disclosure [Text Block]	9 . LEASES: Capital Lease s The Company leases certain equipment used in the manufacturing process. The Company had a total of $1.1 December 31, 2017. 4.68%. December 31, 2017 201 8 $ 361 201 9 333 202 0 238 202 1 121 202 2 100 Total minimum lease payment s 1,153 Amount representing interest (98 ) Present value of minimum lease payment s 1,055 Current portion of capital lease obligations 318 Capital lease obligations, less current portio n $ 737 Operating Leases The Company has entered into various equipment and property leases with terms of ten December 31, 2017, 2016 2015 $3.0 $3.0 $3.1 one December 31, 2017 201 8 $ 1,698 201 9 1,242 202 0 1,108 202 1 798 202 2 381 Thereafte r 1,045 $ 6,272

Note 10 - Fair Value Measuremen

Note 10 - Fair Value Measurements	12 Months Ended
	Dec. 31, 2017
Notes to Financial Statements
Fair Value Disclosures [Text Block]	10 . FAIR VALUE MEASUREMENTS: The Company records its financial assets and liabilities at fair value, which is defined as the price that would be received to sell an asset or paid to transfer a liability, in the principal or most advantageous market for the asset or liability, in an orderly transaction between market participants at the measurement date. The authoritative guidance establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value into three 1 2 3 no Assets/Liabilities Measured and Recorded at Fair Value on a Recurring Basis The following table summarizes information regarding the Company ’s financial assets and liabilities that are measured at fair value on a recurring basis (in thousands): As of December 31, 201 7 Tota l Level 1 Level 2 Level 3 Financial assets : Deferred compensation pla n $ 6,244 $ 5,251 $ 993 $ - Financial liabilities : Derivative s $ (60 ) $ - $ (60 ) $ - As of December 31, 201 6 Financial assets : Deferred compensation pla n $ 6,209 $ 5,215 $ 994 $ - Derivative s 58 - 58 - Total asset s $ 6,267 $ 5,215 $ 1,052 $ - Financial liabilities : Derivative s $ (8 ) $ - $ (8 ) $ - The deferred compensation plan assets consist of cash and several publicly traded stock and bond mutual funds, valued using quoted market prices in active markets , classified as Level 1 2 The Company ’s derivatives consist of foreign currency forward contracts, which are accounted for as cash flow hedges, and are valued using various pricing models or discounted cash flow analyses that incorporate observable market parameters, such as interest rate yield curves and currency rates, classified as Level 2 The net carrying amounts of cash and cash equivalents, trade and other receivables, accounts payable and accrued liabilities approximate fair value due to the short-term nature of these instruments. Assets Measured and Recorded at Fair Value on a Non r ecurring Basis The Company measures its financial assets, including non-marketable cost-method investments, at fair value on a nonrecurring basis when they are determined to be other-than-temporarily impaired. The fair value of these assets is determined using Level 3 no December 31, 2017, 2016 2015. If required as part of its goodwill impairment assessments, the Company calculates the business enterprise value of applicable reporting units. This calculation uses a weighted average of income and market approaches, and is classified as Level 3

Note 11 - Derivative Instrument

Note 11 - Derivative Instruments and Hedging Activities	12 Months Ended
	Dec. 31, 2017
Notes to Financial Statements
Derivative Instruments and Hedging Activities Disclosure [Text Block]	11 . DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES: For each derivative contract entered into in which the Company seeks to obtain cash flow hedge accounting treatment, the Company formally documents all relationships between hedging instruments and hedged items, as well as its risk management objective and strategy for undertaking the hedge transaction, the nature of the risk being hedged, how the hedging instrument ’s effectiveness in offsetting the hedged risk will be assessed prospectively and retrospectively and a description of the method of measuring ineffectiveness. This process includes linking all derivatives to specific firm commitments or forecasted transactions and designating the derivatives as cash flow hedges. The Company also formally assesses, both at the hedge’s inception and on an ongoing basis, whether the derivative contracts that are used in hedging transactions are highly effective in offsetting changes in cash flows of hedged items. The effective portion of these hedged items is reflected in Unrealized gain (loss) on cash flow hedges on the Consolidated Statements of Comprehensive Loss. If it is determined that a derivative contract is not As of December 31, 2017 2016, $2.1 CAD$2.7 $3.4 CAD$4.5 All of the Company ’s Canadian forward contracts have maturities less than twelve December 31, 2017, two $2.1 CAD$2.7 15 17 As of December 31, 2017 2016, not $0.2 CAD$0.2 $0.9 CAD$1.3 December 31, 2017, 2016 2015, not $0, $0 $0.4 December 31, 2017, $0. twelve 17,

Note 12 - Retirement Plans

Note 12 - Retirement Plans	12 Months Ended
	Dec. 31, 2017
Notes to Financial Statements
Pension and Other Postretirement Benefits Disclosure [Text Block]	12 . RETIREMENT PLANS: Defined Contribution Plan The Company has a defined contribution retirement plan that covers substantially all of its employees and provides for a Company match of up to 50% first 6% 24 Defined Benefit Plans The Company has two 2001, No no both of these plans is based on current plan costs plus amortization of the unfunded plan liability. All current employees covered by these plans are now covered by the defined contribution retirement plan. As of December 31, 2017 2016, $1.7 $1.9 $1.4 $1.5 December 31, 2017 2016, $6.6 $6.5 $4.9 $4.6 The ne t periodic benefit cost for the years ended December 31, 2017, 2016 2015 $0, $0.4 $0.4 3.36% 3.74% December 31, 2017 2016, The plan assets are invested in pooled separate accounts stated at fair value based on the daily net asset value of the account and are therefore not 7.5% December 31, 2017 2016. Non-qualified Retirement Savings Plan The Company has a deferred compensation plan that covered officers and selected highly compensated employees until it was frozen in 2016. 50% first $10,000 first $5,000 2015. 35% 35 1% 8% 8%, 8%, not December 31, 2017 2016, $6.2 Total expense for all retirement plans for the years ended December 31, 2017, 2016 2015 $0.9 $1.4 $1.5 $0.1 December 31, 2015.

Note 13 - Share-based Compensat

Note 13 - Share-based Compensation	12 Months Ended
	Dec. 31, 2017
Notes to Financial Statements
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]	13 . SHARE-BASED COMPENSATION: The Company has one 2007 shares of common stock, stock appreciation rights, restricted and unrestricted shares of common stock, RSUs and PSAs. In addition, the Company had one 1995 December 31, 2017. 60 ten three may The following table summarizes share-based compensation expense recorded (in thousands): Year Ended December 31 , 201 7 201 6 201 5 Cost of sale s $ 292 $ 422 $ 412 Selling, general and administrative expens e 908 1,387 1,331 Loss from operations of discontinued operation s - (8 ) 31 Tota l $ 1,200 $ 1,801 $ 1,774 As of December 31, 2017, one There were no the years ended December 31, 2017, 2016 2015. 589,142 December 31, 2017. Stock Options Awards A summary of option activity under the Company’s stock option plans is presented below: Options Outstandin g Weighted- Average Exercise Pric e Weighted- Average Remaining Contractual Lif e Aggregate Intrinsic Valu e (in years ) (in thousands ) Balance, December 31, 201 6 26,000 $ 24.97 Options grante d - - Options exercised - - Options cancele d (2,000 ) 34.77 Balance, December 31, 201 7 24,000 24.15 Exercisable, December 31, 201 7 24,000 24.15 2.24 $ - The total intrinsic value, defined as the difference between the current market value and the grant price, of options exercised during t he year ended December 31, 2015 $0. No 2017 2016. Restricted Stock Units and Performance Share Awards The Company estimates the fair value of RSUs and PSAs using the value of the Company ’s stock on the date of grant, with the exception of market-based PSAs, for which a Monte Carlo simulation model is used. A summary of activity under the Company’s RSUs and PSAs is presented below: Number of RSUs and PSAs (1 ) Weighted- Average Grant Date Fair Valu e Unvested RSUs and PSAs as of December 31, 201 6 221,791 $ 17.36 RSUs and PSAs grante d - - Unvested PSAs cancele d (46,988 ) 43.68 RSUs vested (5,220 ) 36.00 Unvested RSUs as of December 31, 201 7 169,583 9.50 ( 1 The number of shares disclosed in this table are at the target level of 100%. The unvested balance of RSUs and PSAs as of December 31, 2016 47,000 December 31, 2017, not 0%. The weighted -average grant date fair value of RSUs granted during the year ended December 31, 2016 $9.50. no December 31, 2017 2015 no December 31, 2017, 2016 2015. December 31, 2017, 2016 2015 $0.1 $0.1 $1.6 Stock Awards For t he years ended December 31, 2017, 2016 2015, 14,944 27,640 10,464 $14.72 2017, $9.95 2016 $21.02 2015.

Note 14 - Shareholder Rights Pl

Note 14 - Shareholder Rights Plan	12 Months Ended
	Dec. 31, 2017
Notes to Financial Statements
Shareholder Rights Plan Disclosure [Text Block]	14 . SHAREHOLDER RIGHTS PLAN: In June 1999, 150,000 one common stock, payable to shareholders of record on July 9, 1999. one one $83.00, 15% two may $0.01 On June 18, 2009, June 28, 1999 June 28, 2009 June 28, 2019.

Note 15 - Commitments and Conti

Note 15 - Commitments and Contingencies	12 Months Ended
	Dec. 31, 2017
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	15 . COMMITMENTS AND CONTINGENCIES: Portland Harbor Superfund On December 1, 2000, not 2008, 104 14 February 2016. June 2016 January 2017 $1 13 not In 2001, one was conducted in 2002 2003 February 2005, 2016, third 2017. August 2017, 2018. Concurrent with the activities of the EPA and the ODEQ, the Portland Harbor Natural Resources Trustee Council (“Trustees”) sent some or all of the same parties, including the Company, a notice of intent to perform a Natural Resource Damage Assessment (“NRDA”) for the Portland Harbor Site to determine the nature and extent of natural resource damages under CERCLA Section 107. three one June 2014, $0.4 $0.2 July 2014 January 2015. not January 2017, 2009, The Company ’s potential liability is a portion of the costs of the remedy for the entire Portland Harbor Superfund Site. The cost of that remedy is expected to be allocated among more than 100 no no may Houston Environmental Issue In connection with the Company ’s sale of its oil country tubular goods (“OCTG”) business, a Limited Phase II Environmental Site Assessment was conducted at the Houston, Texas plant and completed in March 2014, June 2014, not The Company implemented a remediation plan that included a groundwater assessment, which was completed in December 2016, December 2017, All Sites The Company operates its facilities under numerous governmental permits and licenses relating to air emissions, stormwater runoff and other environmental matters. The Company ’s operations are also governed by many other laws and regulations, including those relating to workplace safety and worker health, principally the Occupational Safety and Health Act and regulations there under which, among other requirements, establish noise and dust standards. The Company believes it is in material compliance with its permits and licenses and these laws and regulations, and the Company does not Other Contingencies and Legal Proceedings From time to time, the Company is involved in litigation relating to claims arising out of its operations in the normal course of its business. The Company maintains insurance coverage against potential claims in amounts that are believed to be adequate. To the extent that insurance does not not Guarantees The Company has entered into certain letters of credit that total $2.0 December 31, 2017.

Note 16 - Income Taxes

Note 16 - Income Taxes	12 Months Ended
	Dec. 31, 2017
Notes to Financial Statements
Income Tax Disclosure [Text Block]	16 . INCOME TAXES: The components of Income tax benefit from continuing operations are as follows (in thousands): Year Ended December 31, 201 7 201 6 201 5 Current : Federa l $ (454 ) $ (740 ) $ (5,076 ) Stat e 49 (102 ) 35 Total current income tax benefi t (405 ) (842 ) (5,041 ) Deferred : Federa l (766 ) (2,883 ) (5,524 ) Stat e 71 (373 ) 2,042 Total deferred income tax benefi t (695 ) (3,256 ) (3,482 ) $ (1,100 ) $ (4,098 ) $ (8,523 ) On December 22, 2017, 2017 not 35% 21% December 31, 2017, one December 31, 2017. $0.9 fourth 2017, $0.6 one $0.2 $1.1 On December 22, 2017, No. 118 118" not 118, $0.6 $0.2 December 31, 2017. The difference between the Company ’s effective income tax rate and the federal statutory income tax rate of 35% Year Ended December 31, 201 7 201 6 201 5 Income tax benefit at federal statutory rate of 35 % $ (3,322 ) $ (3,755 ) $ (9,133 ) State benefit, net of federal income tax effec t (472 ) (286 ) (440 ) Federal and state income tax credit s 36 (154 ) (5,060 ) Disallowed domestic manufacturing deductio n - - 630 Change in valuation allowanc e 1,570 585 2,059 Excess income tax shortfall on share-based compensatio n 765 - - Effect of Tax Cuts and Jobs Act of 201 7 874 - - Uncertain income tax position s (562 ) (4 ) 1,275 Goodwill impairment (nondeductible ) - - 1,849 Nondeductible expense s 63 63 91 Nontaxable adjustment to contingent consideratio n - (580 ) 103 Othe r (52 ) 33 103 Income tax benefi t $ (1,100 ) $ (4,098 ) $ (8,523 ) Effective income tax rat e (11.6 )% (37.8 )% (32.4 )% The income tax effect of temporary differences that give rise to significant portions of deferred income tax assets and liabilities is presented below (in thousands): December 31 , 201 7 201 6 Deferred income tax assets : Costs and estimated earnings in excess of billings on uncompleted contracts, ne t $ - $ 1,270 Accrued employee benefit s 2,806 5,025 Inventorie s 296 563 Trade receivable, ne t 105 199 Net operating loss carryforward s 9,850 15,637 Tax credit carryforward s 5,478 5,069 Other asset s 1,201 1,830 Othe r 81 1,018 19,817 30,611 Valuation allowanc e (10,413 ) (8,217 ) 9,404 22,394 Deferred income tax liabilities : Costs and estimated earnings in excess of billings on uncompleted contracts, ne t (110 ) - Property and equipmen t (9,524 ) (22,380 ) Intangible asset s (433 ) (819 ) Prepaid expense s (278 ) (477 ) (10,345 ) (23,676 ) Net deferred income tax liabilitie s $ (941 ) $ (1,282 ) In assessing the ability to realize deferred income tax assets, management considers whether it is more likely than not not not not December 31, 2017, As of December 31, 2017, $35.9 2035 2036, $3.0 2023 2036. December 31, 2017, $51.5 2019 2036, $4.2 2018. During the year ended December 31, 2016, no not The Company files income tax returns in the United States Federal jurisdiction, in a limited number of foreign jurisdictions and in many state jurisdictions. With few exceptions, the Company is no , state or foreign income tax examinations for years before 2013. A summary of the changes in the unrecognized income tax benefits is presented below (in thousands): Year Ended December 31, 201 7 201 6 201 5 Unrecognized income tax benefits, beginning of yea r $ 4,874 $ 4,874 $ 2,313 Decreases for lapse in statute of limitation s (520 ) - (1,199 ) Increases for positions taken in prior year s - - 3,716 Decreases for positions taken in prior years (238 ) - - Increases for positions taken in the current yea r - - 44 Unrecognized income tax benefits, end of yea r $ 4,116 $ 4,874 $ 4,874 The Company does not twelve The Company recognizes interest and penalties related to uncertain income tax positions in Income tax expense. As of December 31, 2017 2016, $0 $0.1 not 2017 2016 $0.1 2015.

Note 17 - Accumulated Other Com

Note 17 - Accumulated Other Comprehensive Loss	12 Months Ended
	Dec. 31, 2017
Notes to Financial Statements
Comprehensive Income (Loss) Note [Text Block]	17 . ACCUMULATED OTHER COMPREHENSIVE LOSS : Accumulated other comprehensive loss consists of the following (in thousands): December 31, 201 7 201 6 Pension liability adjustment, net of income tax benefit of $866 and $886 $ (1,436 ) $ (1,493 ) Unrealized gain (loss) on cash flow hedges, net of income tax expense (benefit) of $(1) and $ 6 (9 ) 10 Total $ (1,445 ) $ (1,483 ) The following table summarizes changes in the components of Accumulated other comprehensive loss (in thousands). All amounts are net of income tax: Pension Liability Adjustmen t Unrealized Gain (Loss) on Cash Flow Hedge s Tota l Balance, December 31, 201 5 $ (1,624 ) $ 86 $ (1,538 ) Other comprehensive loss before reclassification s (125 ) (48 ) (173 ) Amounts reclassified from Accumulated other comprehensive los s 256 (28 ) 228 Net current period adjustments to Other comprehensive incom e 131 (76 ) 55 Balance, December 31, 201 6 (1,493 ) 10 (1,483 ) Other comprehensive income (loss) before reclassification s 54 (16 ) 38 Amounts reclassified from Accumulated other comprehensive los s 3 (3 ) - Net current period adjustments to Other comprehensive incom e 57 (19 ) 38 Balance, December 31, 201 7 $ (1,436 ) $ (9 ) $ (1,445 ) The following table provides additional detail about Accumulated other comprehensive loss components that were reclassified to the Consolidated Statements of Operations (in thousands): Year Ended December 31, 201 7 201 6 201 5 Details about Accumulated Other Comprehensive Loss Component s Amount reclassified from Accumulated Other Comprehensive Los s Affected line item in the Consolidated Statements of Operation s Pension liability adjustment : Net periodic pension cos t $ (3 ) $ (392 ) $ (352 ) Cost of sales Associated income tax benefi t - 136 131 Income tax benefit (3 ) (256 ) (221 ) Net of tax Unrealized gain on cash flow hedges : Gain on cash flow hedge s 5 45 147 Net sales Hedge ineffectiveness - - 2 Net sales Associated income tax expense (2 ) (17 ) (56 ) Income tax benefit 3 28 93 Net of tax Total reclassifications for the period $ - $ (228 ) $ (128 )

Note 18 - Restructuring

Note 18 - Restructuring	12 Months Ended
	Dec. 31, 2017
Notes to Financial Statements
Restructuring and Related Activities Disclosure [Text Block]	18 . RESTRUCTURING : In October 2016, March 1, 2017 $0.9 $1.0 December 31, 2017 2016, $0 $0.5 $0.9 $0.5 first 2017.

Note 19 - Related Party Transac

Note 19 - Related Party Transactions	12 Months Ended
	Dec. 31, 2017
Notes to Financial Statements
Related Party Transactions Disclosure [Text Block]	19 . RELATED PARTY TRANSACTION S : In the second 2015, May 2016. ten September 30, 2015, five 2015.

Note 20 - Quarterly Data (Unaud

Note 20 - Quarterly Data (Unaudited)	12 Months Ended
	Dec. 31, 2017
Notes to Financial Statements
Quarterly Financial Information [Text Block]	20 . QUARTERLY DATA (UNAUDITED): Summarized q uarterly financial data, adjusted for discontinued operations, is as follows (in thousands, except per share amounts). First Quarte r Second Quarte r Third Quarte r Fourth Quarte r Tota l For the Year Ended December 31, 201 7 Net sale s $ 29,657 $ 28,692 $ 38,804 $ 35,627 $ 132,780 Gross profit (1 ) 1,165 667 1,915 2,076 5,823 Operating los s (3,556 ) (2,904 ) (1,508 ) (1,233 ) (9,201 ) Net los s (3,868 ) (2,068 ) (2,069 ) (2,158 ) (10,163 ) Basic and diluted loss per share : Continuing operation s $ (0.37 ) $ (0.15 ) $ (0.16 ) $ (0.20 ) $ (0.88 ) Discontinued operation s (0.03 ) (0.07 ) (0.05 ) (0.03 ) (0.18 ) Net loss per shar e $ (0.40 ) $ (0.22 ) $ (0.21 ) $ (0.23 ) $ (1.06 ) First Quarte r Second Quarte r Third Quarte r Fourth Quarte r Tota l For the Year Ended December 31, 201 6 Net sale s $ 29,358 $ 39,775 $ 41,075 $ 39,179 $ 149,387 Gross profit (loss ) (5,750 ) (1,272 ) 2,939 3,766 (317 ) Operating income (loss) (2 ) (10,192 ) (5,257 ) (1,253 ) 6,334 (10,368 ) Net income (loss ) (9,583 ) (6,242 ) 727 5,834 (9,263 ) Basic income (loss) per share : Continuing operation s $ (1.01 ) $ (0.55 ) $ 0.15 $ 0.71 $ (0.71 ) Discontinued operation s 0.01 (0.10 ) (0.07 ) (0.10 ) (0.26 ) Net income (loss) per shar e $ (1.00 ) $ (0.65 ) $ 0.08 $ 0.61 $ (0.97 ) Diluted income (loss) per share : Continuing operation s $ (1.01 ) $ (0.55 ) $ 0.15 $ 0.70 $ (0.71 ) Discontinued operation s 0.01 (0.10 ) (0.07 ) (0.10 ) (0.26 ) Net income (loss) per share assuming dilutio n $ (1.00 ) $ (0.65 ) $ 0.08 $ 0.60 $ (0.97 ) ( 1 Gross profit for the fourth 2017 $1.2 ( 2 Operating income for the fourth 2016 f $7.9

Schedule II - Valuation and Qua

Schedule II - Valuation and Qualifying Accounts	12 Months Ended
	Dec. 31, 2017
Notes to Financial Statements
Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]	NORTHWEST PIPE COMPANY VALUATION AND QUALIFYING ACCOUNTS (Dollars in thousands) Balance at Beginning of Perio d Charged to Profit and Los s Deduction from Reserve s Balance at End of Perio d Year Ended December 31, 2017 : Allowance for doubtful account s $ 515 $ 637 $ (675 ) $ 477 Valuation allowance for deferred tax asset s 8,217 2,196 - 10,413 Year Ended December 31, 2016 : Allowance for doubtful account s $ 751 (1) $ 295 $ (531 ) $ 515 Valuation allowance for deferred tax asset s 7,057 1,160 - 8,217 Year Ended December 31, 2015 : Allowance for doubtful account s $ 755 (1) $ 416 $ (420 ) $ 751 (1) Valuation allowance for deferred tax asset s 1,858 5,217 (18 ) 7,057 ( 1 Includes amounts that were classified as held for sale.

Significant Accounting Policies

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2017
Accounting Policies [Abstract]
Use of Estimates, Policy [Policy Text Block]	Use of Estimates The preparation of the Consolidated Financial Statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and judgments that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. The Company bases its estimates on historical experience and on various other assumptions that are believed to be reasonable under the circumstances. On an ongoing basis, the Company evaluates all of its estimates, including those related to allowance for doubtful accounts, inventories, long-lived assets (including depreciation and amortization), revenue recognition, share-based compensation, income taxes and litigation and other contingencies. Actual results may
Consolidation, Policy [Policy Text Block]	Basis of Consolidation and Presentation The Consolidated Financial Statements include the accounts of Northwest Pipe Company and its subsidiaries over which the Company exercises control as of the financial statement date. Intercompany accounts and transactions have been eliminated. Lucid Energy Inc. (“Lucid”) is accounted for under the cost-method of accounting. Lucid is a clean energy company based in Portland, Oregon. The carrying value of this investment is $0 December 31, 2017 2016
Cash and Cash Equivalents, Policy [Policy Text Block]	Cash and Cash Equivalents Cash and cash equivalents consist of cash and short -term, highly liquid investments with maturities of three no December 31, 2017 2016.
Receivables, Policy [Policy Text Block]	Receivables and Allowance for Doubtful Accounts Trade receivables are reported on the Consolidated Balance Sheet net of doubtful accounts. The Company maintains allowances for estimated losses resulting from the inability of its customers to make required payments or from contract disputes. The amounts of such allowances are based on Company history and management’s judgment. At least monthly, the Company reviews past due balances to identify the reasons for non-payment. The Company will write off a receivable account once the account is deemed uncollectible. The Company believes the reported allowances as of December 31, 2017 2016 may
Inventory, Policy [Policy Text Block]	Inventories As of December 31, 2016, No. 2015 11, 330 January 1, 2017, not first first
Property, Plant and Equipment, Impairment [Policy Text Block]	Property and Equipment Property and equipment is stated at cost. Maintenance and repairs are expensed as incurred, and costs of new equipment and buildings, as well as costs of expansions or refurbishment of existing equipment and buildings, including interest where applicable, are capitalized. Depreciation and amortization are determined by the units of production method for most equipment and by the straight-line method for the remaining assets based on the estimated useful lives of the related assets. Estimated useful lives by major classes of property and equipment are as follows: Land improvements ( 15 30 20 40 3 30 may The Company assesses impairment of property and equipment whenever changes in circumstances indicate that the carrying values of the asset or asset group(s) may not
Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block]	Goodwill Goodwill represents the excess of purchase price over the assigned fair values of the net assets in connection with an acquisition. Goodwill is reviewed for impairment annually as of December 31 may one December 31, 2017 2016, 2015, $5.3 million was quantitatively evaluated using a weighted average of the income and market approaches. The Company determined that its goodwill was impaired as of June 30, 2015, second 2015. In evaluating goodwill, the Company looks at the long-term prospects for the reporting unit and recognizes that current performance may not
Goodwill and Intangible Assets, Intangible Assets, Policy [Policy Text Block]	Intangible Assets Intangible assets consist primarily of customer relationships, patents and trade names and trademarks recorded as the result of acquisition activity. Intangible assets are amortized using the straight-line method over estimated useful lives ranging from 4 15 See Note 7,
Workers Compensation Insurance [Policy Text Block]	Workers Compensation The Company is self-insured, or maintains high deductible policies, for losses and liabilities associated with workers compensation claims. Losses are accrued based upon the Company ’s estimates of the aggregate liability for claims incurred using historical experience and certain actuarial assumptions followed in the insurance industry. During the fourth 2017, $1.2 2016 2015, no December 31, 2017 2016, $3.7 $3.4 $0.4 $0.6 $3.3 $2.8
Accrued Liabilities [Policy Text Block]	Accrued Liabilities Accrued liabilities consist of the following (in thousands): December 31 , 201 7 201 6 Accrued liabilities : Accrued vacation payabl e $ 1,886 $ 2,313 Reserves for expected losses on uncompleted contract s 911 1,409 Accrued property taxe s 898 1,096 Workers compensation reserve s 422 569 Litigation accrua l - 1,750 Othe r 2,446 3,788 Total accrued liabilitie s $ 6,563 $ 10,925
Derivatives, Policy [Policy Text Block]	Derivative Instruments The Company conducts business in various foreign countries and, from time to time, settles transactions in foreign currencies. The Company has established a program that utilizes foreign currency forward contracts to offset the risk associated with the effects of certain foreign currency exposures, typically arising from sales contracts denominated in Canadian currency. Foreign currency forward contracts are consistent with the Company’s strategy for financial risk management. The Company utilizes cash flow hedge accounting treatment for qualifying foreign currency forward contracts. Instruments that do not
Pension and Other Postretirement Plans, Pensions, Policy [Policy Text Block]	Pension Benefits The Company has two 2001.
Foreign Currency Transactions and Translations Policy [Policy Text Block]	Foreign Currency Transactions Assets and liabilities subject to foreign currency fluctuations are translated into United States dollars at the period-end exchange rate, and revenue and expenses are translated at exchange rates representing an average for the period. Translation adjustments from designated hedges are included in Accumulated other comprehensive loss as a separate component of Stockholders’ equity. Gains or losses on all other foreign currency transactions are recognized in the Consolidated Statement of Operations. The functional currency of the Company’s Mexican operations is the United States dollar.
Revenue Recognition, Policy [Policy Text Block]	Revenue Recognition Revenue from construction contracts is recognized on the percentage-of-completion method . For a majority of contracts, revenue is measured by the costs incurred to date as a percentage of the estimated total costs of each contract (cost-to-cost method). For a small number of contracts, revenue is measured using units of delivery as progress is best estimated by the number of units delivered under the contract. Contract costs include all direct material and labor costs and those indirect costs related to contract performance, such as indirect labor, supplies, tools, repairs and depreciation. Selling, general and administrative costs are charged to expense as incurred. The cost of steel is recognized as a project cost when the steel is introduced into the manufacturing process. The Company begins recognizing revenue on a project when persuasive evidence of an arrangement exists, recoverability is reasonably assured, and project costs are incurred. Costs may Changes in job performance, job conditions and estimated profitability, including those arising from contract change orders, contract penalty provisions, foreign currency exchange rate movements, changes in raw materials costs and final contract settlements may See “ Recent Accounting and Reporting Developments” below for discussion regarding the expected impact of the adoption of new guidance for revenue recognition effective in the first 2018. No customer accounted for 10% December 31, 2017. One 28% December 31, 2016 two 16 13% December 31, 2015 Net sales from continuing operations by geographic region, based on the location of the customer, were as follows (in thousands): Year Ended December 31, 201 7 201 6 201 5 Net sales from continuing operations by geographic region : United State s $ 122,179 $ 137,411 $ 161,243 Canad a 10,601 11,976 11,917 Tota l $ 132,780 $ 149,387 $ 173,160
Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block]	Share-based Compensation The Company recognizes the compensation cost of employee and director services received in exchange for awards of equity instruments based on the grant date estimated fair value of the awards. Share-based compensation cost is recognized over the period during which the employee or director is required to provide service in exchange for the award, and as forfeitures occur, the associated compensation cost recognized to date is reversed. The Company estimates the fair value of restricted stock units (“RSUs”) and performance share awards (“PSAs”) using the value of the Company’s stock on the date of grant, with the exception of market-based PSAs, for which a Monte Carlo simulation model is used. The Monte Carlo simulation model requires the use of subjective and complex assumptions including the price volatility of the underlying stock. The expected stock price volatility assumption is determined using the historical volatility of the Company’s and a comparator group of companies’ stock over the most recent historical period equivalent to the expected life. The Monte Carlo simulation model calculates many potential outcomes for an award and estimates fair value based on the most likely outcome. See Note 13,
Income Tax, Policy [Policy Text Block]	Income Taxes Income taxes are recorded using an asset and liability approach that requires the recognition of deferred income tax assets and liabilities for the expected future income tax consequences of events that have been recognized in the Company’s financial statements or income tax returns. Valuation allowances are established when necessary to reduce deferred income tax assets to the amount expected to be realized. The determination of the provision for income taxes requires significant judgment, the use of estimates and the interpretation and application of complex tax laws. The provision for income taxes primarily reflects a combination of income earned and taxed in the various United States federal and state and, to a lesser extent, foreign jurisdictions. Jurisdictional tax law changes, increases or decreases in permanent differences between book and tax items, accruals or adjustments of accruals for unrecognized income tax benefits or valuation allowances and the change in the mix of earnings from these taxing jurisdictions all affect the overall effective income tax rate. The Company records income tax reserves for federal, state, local and international exposures relating to periods subject to audit. The development of reserves for these exposures requires judgments about tax issues, potential outcomes and timing, and is a subjective estimate. The Company assesses income tax positions and records income tax benefits for all years subject to examination based upon management’s evaluation of the facts, circumstances and information available at the reporting dates. For those income tax positions where it is more-likely-than- not 50% not not no
Comprehensive Income, Policy [Policy Text Block]	Accumulated Other Comprehensive Loss Accumulated other comprehensive loss includes unrealized gains and losses on derivative instruments related to the effective portion of cash flow hedges and changes in the funded status of the defined benefit pension plans, both net of the related income tax effect. For further information, refer to Note 17,
Earnings Per Share, Policy [Policy Text Block]	Net Loss per Share Basic net loss per share is computed by dividing the net loss by the weighted-average number of shares of common stock outstanding during the period . Diluted net loss per share is computed by giving effect to all potential shares of common stock, including stock options, restricted stock units and performance share awards, to the extent dilutive. Since the Company was in a loss position for all periods presented, basic and diluted net loss per share was the same for each period presented as the inclusion of all potential common shares outstanding would have been antidilutive. L oss per basic and diluted weighted-average common share outstanding was calculated as follows (in thousands, except per share data): Year Ended December 31, 201 7 201 6 201 5 Loss from continuing operation s $ (8,392 ) $ (6,741 ) $ (17,812 ) Loss on discontinued operation s (1,771 ) (2,522 ) (11,576 ) Net los s $ (10,163 ) $ (9,263 ) $ (29,388 ) Basic weighted-average common shares outstandin g 9,613 9,588 9,560 Effect of potentially dilutive common shares (1 ) - - - Diluted weighted-average common shares outstandin g 9,613 9,588 9,560 Basic and diluted loss per common share : Continuing operation s $ (0.88 ) $ (0.71 ) $ (1.86 ) Discontinued operation s (0.18 ) (0.26 ) (1.21 ) Net loss per shar e $ (1.06 ) $ (0.97 ) $ (3.07 ) ( 1 The weighted -average number of antidilutive shares not 196,000, 198,000 179,000 December 31, 2017, 2016 2015,
Concentration Risk, Credit Risk, Policy [Policy Text Block]	Concentrations of Credit Risk Financial instruments, which potentially subject the Company to concentrations of credit risk, consist principally of trade receivables, derivative contracts and deferred compensation plan assets. Trade receivables generally represent a large number of customers, including municipalities, manufacturers, distributors and contractors, dispersed across a wide geographic base. As of December 31, 2017 2016, two 10%
New Accounting Pronouncements, Policy [Policy Text Block]	Recent Accounting and Reporting Developments Accounting Changes In July 2015, No. 2015 11, 330 2015 11” 2015 11, first 2015 11. January 1, 2017 not In March 2016, No. 2016 09, 718 2016 09” 2016 09 January 1, 2017, $0.8 December 31, 2017. Recent Accounting Standards In May 2014, No. 2014 09, 606 2014 09” 2014 09 2014 09 2014 09 January 1, 2018. 2016 2017, 2014 09 not The Company has finalized its analysis of the adoption of ASU 2014 09, not 2014 09 January 1, 2018 $1 Previously reported results will not 2014 09, five In January 2016, Accounting Standards Update No. 2016 01, 825 10 2016 01” 2016 01 2016 01 January 1, 2018. February 2018, No. 2018 03, 825 10 2018 03” 2018 03 2016 01. 2018 03 July 1, 2018. 2016 01 The Company does not In February 2016, No. 2016 02, 842 2016 02” 2016 02 twelve not 2016 02 January 1, 2019, 2019. 2016 02 not 2016 02, 2016 02 not 2016 02 . In August 2016, No. 2016 15, 230 2016 15” 2016 15 eight not 2016 15 January 1, 2018. not In March 2017, No. 2017 07, 715 2017 07” 2017 07 January 1, 2018. 2017 07 no no $0 $0.4 December 31, 2017 2016, In August 2017, No. 2017 12, 815 2017 12” 2017 12 January 1, 2019. not 2017 12 In February 2018, No. 2018 02, 220 2018 02” 2017 2018 02 January 1, 2019. not 2018 02, not

Note 2 - Summary of Significa32

Note 2 - Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2017
Notes Tables
Schedule of Accrued Liabilities [Table Text Block]	December 31 , 201 7 201 6 Accrued liabilities : Accrued vacation payabl e $ 1,886 $ 2,313 Reserves for expected losses on uncompleted contract s 911 1,409 Accrued property taxe s 898 1,096 Workers compensation reserve s 422 569 Litigation accrua l - 1,750 Othe r 2,446 3,788 Total accrued liabilitie s $ 6,563 $ 10,925
Revenue from External Customers by Geographic Areas [Table Text Block]	Year Ended December 31, 201 7 201 6 201 5 Net sales from continuing operations by geographic region : United State s $ 122,179 $ 137,411 $ 161,243 Canad a 10,601 11,976 11,917 Tota l $ 132,780 $ 149,387 $ 173,160
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	Year Ended December 31, 201 7 201 6 201 5 Loss from continuing operation s $ (8,392 ) $ (6,741 ) $ (17,812 ) Loss on discontinued operation s (1,771 ) (2,522 ) (11,576 ) Net los s $ (10,163 ) $ (9,263 ) $ (29,388 ) Basic weighted-average common shares outstandin g 9,613 9,588 9,560 Effect of potentially dilutive common shares (1 ) - - - Diluted weighted-average common shares outstandin g 9,613 9,588 9,560 Basic and diluted loss per common share : Continuing operation s $ (0.88 ) $ (0.71 ) $ (1.86 ) Discontinued operation s (0.18 ) (0.26 ) (1.21 ) Net loss per shar e $ (1.06 ) $ (0.97 ) $ (3.07 )

Note 3 - Discontinued Operati33

Note 3 - Discontinued Operations (Tables)	12 Months Ended
	Dec. 31, 2017
Notes Tables
Disposal Group, Including Discontinued Operation, Balance Sheet Disclosures [Table Text Block]	December 31, 201 7 201 6 Asset s Inventorie s $ - $ 392 Property and equipment, ne t - 36,430 Total assets $ - $ 36,822
Discontinued Operation, Income (Loss) from Discontinued Operation Disclosures [Table Text Block]	Year Ended December 31, 201 7 201 6 201 5 Net sales $ 12 $ 6,869 $ 63,448 Cost of sales 1,792 9,777 76,679 Gross loss (1,780 ) (2,908 ) (13,231 ) Selling, general and administrative expense (1 ) 257 1,925 Gain on sale of facility (6 ) - - Operating loss (1,773 ) (3,165 ) (15,156 ) Other income (expense) - (1 ) 30 Interest income - - 172 Interest expense - (14 ) (50 ) Loss before income taxes (1,773 ) (3,180 ) (15,004 ) Income tax benefit (2 ) (658 ) (3,428 ) Net loss $ (1,771 ) $ (2,522 ) $ (11,576 )

Note 4 - Cost and Estimated E34

Note 4 - Cost and Estimated Earnings in Excess of Billings on Uncompleted Contracts and Billings in Excess of Costs and Estimated Earnings (Tables)	12 Months Ended
	Dec. 31, 2017
Notes Tables
Schedule of Costs and Estimated Earnings in Excess of Billings on Uncompleted Contracts and Billings in Excess of Costs and Estimated Earnings [Table Text Block]	December 31 , 201 7 201 6 (in thousands ) Costs incurred on uncompleted contract s $ 227,048 $ 238,050 Estimated earning s 9,722 7,247 236,770 245,297 Less billings to dat e (194,867 ) (203,672 ) $ 41,903 $ 41,625 Amounts are presented in the Consolidated Balance Sheets as follows : Costs and estimated earnings in excess of billings on uncompleted contract s $ 44,502 $ 43,663 Billings in excess of costs and estimated earnings on uncompleted contract s (2,599 ) (2,038 ) $ 41,903 $ 41,625

Note 5 - Inventories (Tables)

Note 5 - Inventories (Tables)	12 Months Ended
	Dec. 31, 2017
Notes Tables
Schedule Of Inventory Current And Non Current [Table Text Block]	December 31 , 201 7 201 6 Short-term inventories : Raw material s $ 13,700 $ 15,411 Work-in-proces s 1,268 1,235 Finished good s 464 40 Supplie s 1,623 1,959 Total short-term inventorie s 17,055 18,645 Long-term inventories : Finished good s 820 773 Total inventorie s $ 17,875 $ 19,418

Note 6 - Property and Equipme36

Note 6 - Property and Equipment (Tables)	12 Months Ended
	Dec. 31, 2017
Notes Tables
Property, Plant and Equipment [Table Text Block]	December 31 , 201 7 201 6 Land and improvement s $ 20,185 $ 19,787 Building s 30,301 30,219 Machinery and equipmen t 100,438 99,485 Equipment under capital leas e 1,171 1,126 Construction in progres s 972 531 153,067 151,148 Less accumulated depreciation and amortizatio n (74,311 ) (69,477 ) Property and equipment, ne t $ 78,756 $ 81,671

Note 7 - Intangible Assets (Tab

Note 7 - Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2017
Notes Tables
Schedule of Intangible Assets and Goodwill [Table Text Block]	Gross Carryin g Accumulate d Intangibl e Amoun t Amortizatio n Assets, Ne t As of December 31, 201 7 Customer relationship s $ 1,378 $ (551 ) $ 827 Patent s 1,162 (929 ) 233 Trade names and trademark s 1,132 (302 ) 830 Other (1 ) 176 (163 ) 13 Tota l $ 3,848 $ (1,945 ) $ 1,903 As of December 31, 201 6 Customer relationship s $ 1,378 $ (413 ) $ 965 Patent s 1,162 (697 ) 465 Trade names and trademark s 1,132 (226 ) 906 Other (1 ) 295 (233 ) 62 Tota l $ 3,967 $ (1,569 ) $ 2,398
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	Year ending December 31 , 201 8 $ 459 201 9 213 202 0 213 202 1 213 202 2 213 Thereafte r 592 $ 1,903

Note 9 - Leases (Tables)

Note 9 - Leases (Tables)	12 Months Ended
	Dec. 31, 2017
Notes Tables
Schedule of Future Minimum Lease Payments for Capital Leases [Table Text Block]	201 8 $ 361 201 9 333 202 0 238 202 1 121 202 2 100 Total minimum lease payment s 1,153 Amount representing interest (98 ) Present value of minimum lease payment s 1,055 Current portion of capital lease obligations 318 Capital lease obligations, less current portio n $ 737
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]	201 8 $ 1,698 201 9 1,242 202 0 1,108 202 1 798 202 2 381 Thereafte r 1,045 $ 6,272

Note 10 - Fair Value Measurem39

Note 10 - Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2017
Notes Tables
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	As of December 31, 201 7 Tota l Level 1 Level 2 Level 3 Financial assets : Deferred compensation pla n $ 6,244 $ 5,251 $ 993 $ - Financial liabilities : Derivative s $ (60 ) $ - $ (60 ) $ - As of December 31, 201 6 Financial assets : Deferred compensation pla n $ 6,209 $ 5,215 $ 994 $ - Derivative s 58 - 58 - Total asset s $ 6,267 $ 5,215 $ 1,052 $ - Financial liabilities : Derivative s $ (8 ) $ - $ (8 ) $ -

Note 13 - Share-based Compens40

Note 13 - Share-based Compensation (Tables)	12 Months Ended
	Dec. 31, 2017
Notes Tables
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]	Year Ended December 31 , 201 7 201 6 201 5 Cost of sale s $ 292 $ 422 $ 412 Selling, general and administrative expens e 908 1,387 1,331 Loss from operations of discontinued operation s - (8 ) 31 Tota l $ 1,200 $ 1,801 $ 1,774
Share-based Compensation, Stock Options, Activity [Table Text Block]	Options Outstandin g Weighted- Average Exercise Pric e Weighted- Average Remaining Contractual Lif e Aggregate Intrinsic Valu e (in years ) (in thousands ) Balance, December 31, 201 6 26,000 $ 24.97 Options grante d - - Options exercised - - Options cancele d (2,000 ) 34.77 Balance, December 31, 201 7 24,000 24.15 Exercisable, December 31, 201 7 24,000 24.15 2.24 $ -
Schedule of Unvested Restricted Stock Units Roll Forward [Table Text Block]	Number of RSUs and PSAs (1 ) Weighted- Average Grant Date Fair Valu e Unvested RSUs and PSAs as of December 31, 201 6 221,791 $ 17.36 RSUs and PSAs grante d - - Unvested PSAs cancele d (46,988 ) 43.68 RSUs vested (5,220 ) 36.00 Unvested RSUs as of December 31, 201 7 169,583 9.50

Note 16 - Income Taxes (Tables)

Note 16 - Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2017
Notes Tables
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	Year Ended December 31, 201 7 201 6 201 5 Current : Federa l $ (454 ) $ (740 ) $ (5,076 ) Stat e 49 (102 ) 35 Total current income tax benefi t (405 ) (842 ) (5,041 ) Deferred : Federa l (766 ) (2,883 ) (5,524 ) Stat e 71 (373 ) 2,042 Total deferred income tax benefi t (695 ) (3,256 ) (3,482 ) $ (1,100 ) $ (4,098 ) $ (8,523 )
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	Year Ended December 31, 201 7 201 6 201 5 Income tax benefit at federal statutory rate of 35 % $ (3,322 ) $ (3,755 ) $ (9,133 ) State benefit, net of federal income tax effec t (472 ) (286 ) (440 ) Federal and state income tax credit s 36 (154 ) (5,060 ) Disallowed domestic manufacturing deductio n - - 630 Change in valuation allowanc e 1,570 585 2,059 Excess income tax shortfall on share-based compensatio n 765 - - Effect of Tax Cuts and Jobs Act of 201 7 874 - - Uncertain income tax position s (562 ) (4 ) 1,275 Goodwill impairment (nondeductible ) - - 1,849 Nondeductible expense s 63 63 91 Nontaxable adjustment to contingent consideratio n - (580 ) 103 Othe r (52 ) 33 103 Income tax benefi t $ (1,100 ) $ (4,098 ) $ (8,523 ) Effective income tax rat e (11.6 )% (37.8 )% (32.4 )%
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]	December 31 , 201 7 201 6 Deferred income tax assets : Costs and estimated earnings in excess of billings on uncompleted contracts, ne t $ - $ 1,270 Accrued employee benefit s 2,806 5,025 Inventorie s 296 563 Trade receivable, ne t 105 199 Net operating loss carryforward s 9,850 15,637 Tax credit carryforward s 5,478 5,069 Other asset s 1,201 1,830 Othe r 81 1,018 19,817 30,611 Valuation allowanc e (10,413 ) (8,217 ) 9,404 22,394 Deferred income tax liabilities : Costs and estimated earnings in excess of billings on uncompleted contracts, ne t (110 ) - Property and equipmen t (9,524 ) (22,380 ) Intangible asset s (433 ) (819 ) Prepaid expense s (278 ) (477 ) (10,345 ) (23,676 ) Net deferred income tax liabilitie s $ (941 ) $ (1,282 )
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]	Year Ended December 31, 201 7 201 6 201 5 Unrecognized income tax benefits, beginning of yea r $ 4,874 $ 4,874 $ 2,313 Decreases for lapse in statute of limitation s (520 ) - (1,199 ) Increases for positions taken in prior year s - - 3,716 Decreases for positions taken in prior years (238 ) - - Increases for positions taken in the current yea r - - 44 Unrecognized income tax benefits, end of yea r $ 4,116 $ 4,874 $ 4,874

Note 17 - Accumulated Other C42

Note 17 - Accumulated Other Comprehensive Loss (Tables)	12 Months Ended
	Dec. 31, 2017
Notes Tables
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	December 31, 201 7 201 6 Pension liability adjustment, net of income tax benefit of $866 and $886 $ (1,436 ) $ (1,493 ) Unrealized gain (loss) on cash flow hedges, net of income tax expense (benefit) of $(1) and $ 6 (9 ) 10 Total $ (1,445 ) $ (1,483 )
Schedule of Changes in Accumulated Other Comprehensive Income Loss [Table Text Block]	Pension Liability Adjustmen t Unrealized Gain (Loss) on Cash Flow Hedge s Tota l Balance, December 31, 201 5 $ (1,624 ) $ 86 $ (1,538 ) Other comprehensive loss before reclassification s (125 ) (48 ) (173 ) Amounts reclassified from Accumulated other comprehensive los s 256 (28 ) 228 Net current period adjustments to Other comprehensive incom e 131 (76 ) 55 Balance, December 31, 201 6 (1,493 ) 10 (1,483 ) Other comprehensive income (loss) before reclassification s 54 (16 ) 38 Amounts reclassified from Accumulated other comprehensive los s 3 (3 ) - Net current period adjustments to Other comprehensive incom e 57 (19 ) 38 Balance, December 31, 201 7 $ (1,436 ) $ (9 ) $ (1,445 )
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]	Year Ended December 31, 201 7 201 6 201 5 Details about Accumulated Other Comprehensive Loss Component s Amount reclassified from Accumulated Other Comprehensive Los s Affected line item in the Consolidated Statements of Operation s Pension liability adjustment : Net periodic pension cos t $ (3 ) $ (392 ) $ (352 ) Cost of sales Associated income tax benefi t - 136 131 Income tax benefit (3 ) (256 ) (221 ) Net of tax Unrealized gain on cash flow hedges : Gain on cash flow hedge s 5 45 147 Net sales Hedge ineffectiveness - - 2 Net sales Associated income tax expense (2 ) (17 ) (56 ) Income tax benefit 3 28 93 Net of tax Total reclassifications for the period $ - $ (228 ) $ (128 )

Note 20 - Quarterly Data (Una43

Note 20 - Quarterly Data (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2017
Notes Tables
Quarterly Financial Information [Table Text Block]	First Quarte r Second Quarte r Third Quarte r Fourth Quarte r Tota l For the Year Ended December 31, 201 7 Net sale s $ 29,657 $ 28,692 $ 38,804 $ 35,627 $ 132,780 Gross profit (1 ) 1,165 667 1,915 2,076 5,823 Operating los s (3,556 ) (2,904 ) (1,508 ) (1,233 ) (9,201 ) Net los s (3,868 ) (2,068 ) (2,069 ) (2,158 ) (10,163 ) Basic and diluted loss per share : Continuing operation s $ (0.37 ) $ (0.15 ) $ (0.16 ) $ (0.20 ) $ (0.88 ) Discontinued operation s (0.03 ) (0.07 ) (0.05 ) (0.03 ) (0.18 ) Net loss per shar e $ (0.40 ) $ (0.22 ) $ (0.21 ) $ (0.23 ) $ (1.06 ) First Quarte r Second Quarte r Third Quarte r Fourth Quarte r Tota l For the Year Ended December 31, 201 6 Net sale s $ 29,358 $ 39,775 $ 41,075 $ 39,179 $ 149,387 Gross profit (loss ) (5,750 ) (1,272 ) 2,939 3,766 (317 ) Operating income (loss) (2 ) (10,192 ) (5,257 ) (1,253 ) 6,334 (10,368 ) Net income (loss ) (9,583 ) (6,242 ) 727 5,834 (9,263 ) Basic income (loss) per share : Continuing operation s $ (1.01 ) $ (0.55 ) $ 0.15 $ 0.71 $ (0.71 ) Discontinued operation s 0.01 (0.10 ) (0.07 ) (0.10 ) (0.26 ) Net income (loss) per shar e $ (1.00 ) $ (0.65 ) $ 0.08 $ 0.61 $ (0.97 ) Diluted income (loss) per share : Continuing operation s $ (1.01 ) $ (0.55 ) $ 0.15 $ 0.70 $ (0.71 ) Discontinued operation s 0.01 (0.10 ) (0.07 ) (0.10 ) (0.26 ) Net income (loss) per share assuming dilutio n $ (1.00 ) $ (0.65 ) $ 0.08 $ 0.60 $ (0.97 )

Schedule II - Valuation and Q44

Schedule II - Valuation and Qualifying Accounts (Tables)	12 Months Ended
	Dec. 31, 2017
Notes Tables
Summary of Valuation and Qualifying Accounts [Table Text Block]	Balance at Beginning of Perio d Charged to Profit and Los s Deduction from Reserve s Balance at End of Perio d Year Ended December 31, 2017 : Allowance for doubtful account s $ 515 $ 637 $ (675 ) $ 477 Valuation allowance for deferred tax asset s 8,217 2,196 - 10,413 Year Ended December 31, 2016 : Allowance for doubtful account s $ 751 (1) $ 295 $ (531 ) $ 515 Valuation allowance for deferred tax asset s 7,057 1,160 - 8,217 Year Ended December 31, 2015 : Allowance for doubtful account s $ 755 (1) $ 416 $ (420 ) $ 751 (1) Valuation allowance for deferred tax asset s 1,858 5,217 (18 ) 7,057

Note 1 - Organization (Details

Note 1 - Organization (Details Textual)	12 Months Ended
	Dec. 31, 2017
Number of Operating Segments	1

Note 2 - Summary of Significa46

Note 2 - Summary of Significant Accounting Policies (Details Textual)	3 Months Ended	12 Months Ended
	Dec. 31, 2017USD ($)	Dec. 31, 2017USD ($)shares	Dec. 31, 2016USD ($)shares	Dec. 31, 2015USD ($)shares	Dec. 31, 2018USD ($)	Mar. 31, 2015USD ($)
Investments	$ 0	$ 0	$ 0
Book Overdrafts	0	0	0
Workers' Compensation Liability	3,700,000	3,700,000	3,400,000
Workers' Compensation Liability, Current	422,000	$ 422,000	$ 569,000
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount | shares		196,000	198,000	179,000
Number of Customers with Receivable Balance in Excess of Ten Percent of Receivables		2	2
Income Tax Expense (Benefit)		$ (1,100,000)	$ (4,098,000)	$ (8,523,000)
Accounting Standards Update 2016-09 [Member]
Income Tax Expense (Benefit)		$ 800,000
Accounting Standards Update 2014-09 [Member] | Retained Earnings [Member] | Scenario, Forecast [Member]
Cumulative Effect of New Accounting Principle in Period of Adoption					$ 1,000,000
Sales Revenue, Net [Member] | Customer Concentration Risk [Member]
Number of Major Customers		0	1	2
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Customer One [Member]
Concentration Risk, Percentage			28.00%	16.00%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Customer Two [Member]
Concentration Risk, Percentage				13.00%
Accrued Liability [Member]
Workers' Compensation Liability, Current	400,000	$ 400,000	$ 600,000
Other Long-term Liabilities [Member]
Workers' Compensation Liability, Noncurrent	3,300,000	3,300,000	2,800,000
Cost of Sales [Member]
Workers Compensation Expense	$ 1,200,000
Cost of Sales [Member] | Accounting Standards Update 2017-07 [Member] | Year Ended December 31, 2016 [Member]
Prior Period Reclassification Adjustment		$ 0	$ 400,000
Water Transmission Group [Member]
Goodwill						$ 5,300,000
Minimum [Member]
Finite-Lived Intangible Asset, Useful Life		4 years
Maximum [Member]
Finite-Lived Intangible Asset, Useful Life		15 years
Land Improvements [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life		15 years
Land Improvements [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life		30 years
Building [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life		20 years
Building [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life		40 years
Machinery and Equipment [Member] | Minimum [Member]
Property, Plant and Equipment, Useful Life		3 years
Machinery and Equipment [Member] | Maximum [Member]
Property, Plant and Equipment, Useful Life		30 years

Note 2 - Summary of Significa47

Note 2 - Summary of Significant Accounting Policies - Summary of Accrued Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Accrued vacation payable	$ 1,886	$ 2,313
Reserves for expected losses on uncompleted contracts	911	1,409
Accrued property taxes	898	1,096
Workers' Compensation Liability, Current	422	569
Litigation accrual		1,750
Other	2,446	3,788
Total accrued liabilities	$ 6,563	$ 10,925

Note 2 - Summary of Significa48

Note 2 - Summary of Significant Accounting Policies - Net Sales From Continuing Operations by Geographic Region (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Net sales	$ 35,627	$ 38,804	$ 28,692	$ 29,657	$ 39,179	$ 41,075	$ 39,775	$ 29,358	$ 132,780	$ 149,387	$ 173,160
UNITED STATES
Net sales									122,179	137,411	161,243
CANADA
Net sales									$ 10,601	$ 11,976	$ 11,917

Note 2 - Summary of Significa49

Note 2 - Summary of Significant Accounting Policies - Loss Per Basic and Diluted Weighted Average Common Share Outstanding for Continuing and Discontinued Operations (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		3 Months Ended								12 Months Ended
		Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Loss from continuing operations										$ (8,392)	$ (6,741)	$ (17,812)
Loss on discontinued operations										(1,771)	(2,522)	(11,576)
Net loss		$ (2,158)	$ (2,069)	$ (2,068)	$ (3,868)	$ 5,834	$ 727	$ (6,242)	$ (9,583)	$ (10,163)	$ (9,263)	$ (29,388)
Basic weighted-average common shares outstanding (in shares)										9,613	9,588	9,560
Effect of potentially dilutive common shares(1) (in shares)	[1]
Diluted weighted-average common shares outstanding (in shares)										9,613	9,588	9,560
Continuing operations, basic and diluted (in dollars per share)		$ (0.20)	$ (0.16)	$ (0.15)	$ (0.37)					$ (0.88)	$ (0.71)	$ (1.86)
Discontinued operations, basic and diluted (in dollars per share)		(0.03)	(0.05)	(0.07)	(0.03)					(0.18)	(0.26)	(1.21)
Net loss per share, basic and diluted (in dollars per share)		$ (0.23)	$ (0.21)	$ (0.22)	$ (0.40)					$ (1.06)	$ (0.97)	$ (3.07)
[1]	The weighted-average number of antidilutive shares not included in the computation of diluted loss per share was approximately 196,000, 198,000 and 179,000 for the years ended December 31, 2017, 2016 and 2015, respectively.

Note 3 - Discontinued Operati50

Note 3 - Discontinued Operations (Details Textual) - USD ($) $ in Thousands	Dec. 26, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Escrow Deposits Related to Property Sales		$ 4,465
Restructuring Charges		$ 881	$ 990
Atchison Facility [Member]
Disposal Group, Including Discontinued Operation, Consideration	$ 37,200
Restructuring Charges				600
Atchison Facility [Member] | Cost of Sales [Member]
Restructuring Charges				500
Atchison Facility [Member] | Selling, General and Administrative Expenses [Member]
Restructuring Charges				$ 100
Atchison Facility [Member] | Until Receipt by Buyer [Member]
Escrow Deposits Related to Property Sales	750
Atchison Facility [Member] | To Secure Indemnification Obligations [Member]
Escrow Deposits Related to Property Sales	$ 3,700

Note 3 - Discontinued Operati51

Note 3 - Discontinued Operations - Balance Sheet Disclosures (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Assets
Inventories		$ 392
Property and equipment, net		36,430
Total assets		$ 36,822

Note 3 - Discontinued Operati52

Note 3 - Discontinued Operations - Operating Results for Discontinued Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Net sales	$ 12	$ 6,869	$ 63,448
Cost of sales	1,792	9,777	76,679
Gross loss	(1,780)	(2,908)	(13,231)
Selling, general and administrative expense	(1)	257	1,925
Gain on sale of facility	(6)
Operating loss	(1,773)	(3,165)	(15,156)
Other income (expense)		(1)	30
Interest income			172
Interest expense		(14)	(50)
Loss before income taxes	(1,773)	(3,180)	(15,004)
Income tax benefit	(2)	(658)	(3,428)
Net loss	$ (1,771)	$ (2,522)	$ (11,576)

Note 4 - Costs and Estimated Ea

Note 4 - Costs and Estimated Earnings in Excess of Billings on Uncompleted Contracts and Billings in Excess of Costs and Estimated Earnings - Uncompleted Contracts (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Costs incurred on uncompleted contracts	$ 227,048	$ 238,050
Estimated earnings	9,722	7,247
Sum of costs incurred and estimated earnings on uncompleted contracts	236,770	245,297
Less billings to date	(194,867)	(203,672)
Costs and estimated earnings in excess of billings on uncompleted contracts, net	41,903	41,625
Costs and estimated earnings in excess of billings on uncompleted contracts	44,502	43,663
Billings in excess of costs and estimated earnings on uncompleted contracts	(2,599)	(2,038)
Costs and estimated earnings in excess of billings on uncompleted contracts, net	$ 41,903	$ 41,625

Note 5 - Inventories - Componen

Note 5 - Inventories - Components of Inventories (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Raw materials	$ 13,700	$ 15,411
Work-in-process	1,268	1,235
Finished goods	464	40
Supplies	1,623	1,959
Total short-term inventories	17,055	18,645
Finished goods	820	773
Total inventories	$ 17,875	$ 19,418

Note 6 - Property and Equipme55

Note 6 - Property and Equipment (Details Textual) - USD ($) $ in Thousands	Oct. 04, 2016	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation		$ 600	$ 500	$ 600
Property, Plant and Equipment, Net		81,671	78,756	81,671
Proceeds from Sale of Facility				13,914
Gain (Loss) on Disposition of Facility				7,860
Denver Facility [Member]
Proceeds from Sale of Facility	$ 13,900
Gain (Loss) on Disposition of Facility		7,900
MEXICO
Property, Plant and Equipment, Net		$ 4,100	$ 3,800	$ 4,100

Note 6 - Property and Equipme56

Note 6 - Property and Equipment - Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Property and equipment, gross	$ 153,067	$ 151,148
Less accumulated depreciation and amortization	(74,311)	(69,477)
Property and equipment, net	78,756	81,671
Land Improvements [Member]
Property and equipment, gross	20,185	19,787
Building [Member]
Property and equipment, gross	30,301	30,219
Machinery and Equipment [Member]
Property and equipment, gross	100,438	99,485
Assets Held under Capital Leases [Member]
Property and equipment, gross	1,171	1,126
Construction in Progress [Member]
Property and equipment, gross	$ 972	$ 531

Note 7 - Intangible Assets - Su

Note 7 - Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands		Dec. 31, 2017	Dec. 31, 2016
Gross Carrying Amount		$ 3,848	$ 3,967
Accumulated Amortization		(1,945)	(1,569)
Intangible Assets, Net		1,903	2,398
Customer Relationships [Member]
Gross Carrying Amount		1,378	1,378
Accumulated Amortization		(551)	(413)
Intangible Assets, Net		827	965
Patents [Member]
Gross Carrying Amount		1,162	1,162
Accumulated Amortization		(929)	(697)
Intangible Assets, Net		233	465
Trademarks and Trade Names [Member]
Gross Carrying Amount		1,132	1,132
Accumulated Amortization		(302)	(226)
Intangible Assets, Net		830	906
Other Intangible Assets [Member]
Gross Carrying Amount	[1]	176	295
Accumulated Amortization	[1]	(163)	(233)
Intangible Assets, Net	[1]	$ 13	$ 62
[1]	Other intangibles consist of favorable lease contracts and non-compete agreements.

Note 7 - Intangible Assets - 58

Note 7 - Intangible Assets - Summary of Estimated Amortization Expense (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
2,018	$ 459
2,019	213
2,020	213
2,021	213
2,022	213
Thereafter	592
Total	$ 1,903	$ 2,398

Note 8 - Line of Credit (Detail

Note 8 - Line of Credit (Details Textual) - USD ($) $ in Thousands	Oct. 26, 2015	Oct. 31, 2015	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Line of Credit Facility, Maximum Borrowing Capacity	$ 60,000		$ 100,000
Interest Expense, Debt		$ 400	500	$ 500	$ 1,300
Interest Costs Capitalized				0	$ 100
2015 Credit Agreement [Member]
Line of Credit Facility, Maximum Borrowing Capacity			19,100
Long-term Line of Credit			$ 0	$ 0
2015 Credit Agreement [Member] | London Interbank Offered Rate (LIBOR) [Member] | Minimum [Member]
Debt Instrument, Basis Spread on Variable Rate	1.75%
2015 Credit Agreement [Member] | London Interbank Offered Rate (LIBOR) [Member] | Maximum [Member]
Debt Instrument, Basis Spread on Variable Rate	2.25%
2015 Credit Agreement [Member] | Prime Rate [Member] | Minimum [Member]
Debt Instrument, Basis Spread on Variable Rate	0.75%
2015 Credit Agreement [Member] | Prime Rate [Member] | Maximum [Member]
Debt Instrument, Basis Spread on Variable Rate	1.25%

Note 9 - Leases (Details Textua

Note 9 - Leases (Details Textual) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Capital Lease Obligations	$ 1.1
Capital Lease, Weighted Average Interest Rate	4.68%
Maximum Duration of Operating Leases	10 years
Operating Leases, Rent Expense, Net	$ 3	$ 3	$ 3.1

Note 9 - Leases - Schedule of F

Note 9 - Leases - Schedule of Future Minimum Lease Payments for Capital Leases (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
2,018	$ 361
2,019	333
2,020	238
2,021	121
2,022	100
Total minimum lease payments	1,153
Amount representing interest	(98)
Present value of minimum lease payments	1,055
Current portion of capital lease obligations	318	$ 325
Capital lease obligations, less current portion	$ 737	$ 602

Note 9 - Leases - Schedule of62

Note 9 - Leases - Schedule of Future Minimum Lease Payments for Operating Leases (Details) $ in Thousands	Dec. 31, 2017USD ($)
2,018	$ 1,698
2,019	1,242
2,020	1,108
2,021	798
2,022	381
Thereafter	1,045
Total	$ 6,272

Note 10 - Fair Value Measurem63

Note 10 - Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Deferred compensation plan	$ 6,244	$ 6,209
Derivatives, liabilities	(60)	(8)
Derivatives, assets		58
Total assets		6,267
Fair Value, Inputs, Level 1 [Member]
Deferred compensation plan	5,251	5,215
Derivatives, liabilities
Derivatives, assets
Total assets		5,215
Fair Value, Inputs, Level 2 [Member]
Deferred compensation plan	993	994
Derivatives, liabilities	(60)	(8)
Derivatives, assets		58
Total assets		1,052
Fair Value, Inputs, Level 3 [Member]
Deferred compensation plan
Derivatives, liabilities
Derivatives, assets
Total assets

Note 11 - Derivative Instrume64

Note 11 - Derivative Instruments and Hedging Activities (Details Textual) $ in Millions	12 Months Ended
	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Dec. 31, 2017CAD ($)	Dec. 31, 2016CAD ($)
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	$ 0	$ 0	$ 400,000
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months	0
Canadian Forward Contract, Remaining Maturities of 15 to 17 Months [Member]
Derivative, Notional Amount	$ 2,100,000			$ 2.7
Derivative, Number of Instruments Held	2			2
Maximum [Member]
Maturity Period For Forward Contracts	1 year
Designated as Hedging Instrument [Member]
Derivative, Notional Amount	$ 2,100,000	3,400,000		$ 2.7	$ 4.5
Not Designated as Hedging Instrument [Member]
Derivative, Notional Amount	$ 200,000	$ 900,000		$ 0.2	$ 1.3

Note 12 - Retirement Plans (Det

Note 12 - Retirement Plans (Details Textual)	12 Months Ended
	Dec. 31, 2017USD ($)	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)
Company Matching Percentage on First Six Percent of Employee Contributions	50.00%
Employee Contribution Percentage for Which Company Will Match at Fifty Percent	6.00%
Defined Contribution Plan Number of Investment Options	24
Number of Non-contributory Defined Benefit Plans	2
Liability, Defined Benefit Plan	$ 1,700,000	$ 1,900,000
Accumulated Other Comprehensive Income (Loss), Unrecognized Net Actuarial Losses, Net of Tax	1,400,000	1,500,000
Defined Benefit Plan, Accumulated Benefit Obligation	6,600,000	6,500,000
Defined Benefit Plan, Fair Value of Plan Assets	4,900,000	4,600,000
Defined Benefit Plan, Net Periodic Benefit Cost (Credit)	$ 0	$ 400,000	$ 400,000
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	3.36%	3.74%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Rate of Return on Plan Assets	7.50%	7.50%
Company Matching Percentage on First Ten Thousand Dollar Employee Contributions	50.00%
Officer Contribution for Which Company Will Match at Fifty Percent	$ 10,000
Select Employee Contribution for Which Company Will Match at Fifty Percent	$ 5,000
Retirement Target Benefit Plan, Percentage of Final Base Pay after 35-year Career	35.00%
Retirement Target Benefit Plan, Percentage of Final Base Pay per Year of Service	1.00%
Non-qualified Retirement Savings Plan Actuarial Yearly Asset Growth Percentage Assumption	8.00%
Deferred Compensation Liability, Current and Noncurrent	$ 6,200,000	$ 6,200,000
Retirement Plan Expense	$ 900,000	$ 1,400,000	1,500,000
Income (Loss) From Operations of Discontinued Operations [Member]
Retirement Plan Expense			$ 100,000

Note 13 - Share-based Compens66

Note 13 - Share-based Compensation (Details Textual) - USD ($)		12 Months Ended
		Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Number Of Active Stock Incentive Plans		1
Number Of Inactive Stock Option Plans		1
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures		0	0	0
Common Stock, Capital Shares Reserved for Future Issuance		589,142
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value				$ 0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period		0	0
Restricted Stock Units and Performance Share Award Target Level, Percentage		100.00%
Minimum Performance Awards Issued Multiplier		0.00%
Director [Member]
Share-based Goods and Nonemployee Services Transaction, Quantity of Securities Issued		14,944	27,640	10,464
Share-based Compensation Arrangement by Stock-based Payment Award, Grant Date Fair Value		$ 14.72	$ 9.95	$ 21.02
Employee Stock Option [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		5 years
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period		10 years
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period		3 years
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition		30 days
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value			$ 9.50
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period		0		0
Performance Shares [Member]
Share Based Compensation Arrangement By Share Based Payment Award Equity Instruments Other Than Options Nonvested Number At Target Level Of Performance			47,000
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period		0	0	0
Restricted Stock Units and Performance Stock Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	[1]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value		$ 100,000	$ 100,000	$ 1,600,000
[1]	The number of shares disclosed in this table are at the target level of 100%.

Note 13 - Share-based Compens67

Note 13 - Share-based Compensation - Share-based Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Share-based compensation expense	$ 1,200	$ 1,801	$ 1,774
Cost of Sales [Member]
Share-based compensation expense	292	422	412
Selling, General and Administrative Expenses [Member]
Share-based compensation expense	908	1,387	1,331
Income (Loss) From Operations of Discontinued Operations [Member]
Share-based compensation expense		$ (8)	$ 31

Note 13 - Share-based Compens68

Note 13 - Share-based Compensation - Stock Option Activity (Details) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Balance (in shares)	26,000
Balance (in dollars per share)	$ 24.97
Options granted (in shares)
Options granted (in dollars per share)
Options exercised (in shares)	0	0
Options exercised (in dollars per share)
Options canceled (in shares)	(2,000)
Options canceled (in dollars per share)	$ 34.77
Balance (in shares)	24,000	26,000
Balance (in dollars per share)	$ 24.15	$ 24.97
Balance (Year)
Balance
Exercisable, December 31, 2017 (in shares)	24,000
Exercisable, December 31, 2017 (in dollars per share)	$ 24.15
Exercisable, December 31, 2017 (Year)	2 years 87 days
Exercisable, December 31, 2017

Note 13 - Share-based Compens69

Note 13 - Share-based Compensation - RSU and PSA Activity (Details) - Restricted Stock Units and Performance Stock Awards [Member]	12 Months Ended
	Dec. 31, 2017$ / sharesshares
Unvested RSUs and PSAs (in shares)	221,791	[1]
Unvested RSUs and PSAs (in dollars per share) | $ / shares	$ 17.36
RSUs and PSAs granted (in shares)		[1]
Unvested PSAs canceled (in shares)	(46,988)	[1]
Unvested PSAs canceled (in dollars per share) | $ / shares	$ 43.68
RSUs vested (in shares)	(5,220)	[1]
RSUs vested (in dollars per share) | $ / shares	$ 36
Unvested RSUs and PSAs (in shares)	169,583	[1]
Unvested RSUs and PSAs (in dollars per share) | $ / shares	$ 9.50
[1]	The number of shares disclosed in this table are at the target level of 100%.

Note 14 - Shareholder Rights 70

Note 14 - Shareholder Rights Plan (Details Textual) - $ / shares	Jun. 18, 2009	Jun. 17, 2009	Dec. 31, 2017
Number of Series Junior Participating Preferred Stock Shares Reserved			150,000
Dividend Distribution Under Shareholder Rights Plan			1
Class of Warrant or Right, Number of Securities Called by Each Warrant or Right			0.01
Purchase Price Under Rights			$ 83
Acquisition Percentage			15.00%
Value of Exercised Right			2
Right Redemption Value			$ 0.01
Amended and Restated Rights Agreement Expiration Date	Jun. 28, 2019	Jun. 28, 2009

Note 15 - Commitments and Con71

Note 15 - Commitments and Contingencies (Details Textual) $ in Millions	1 Months Ended
	Jan. 31, 2017USD ($)	Jul. 31, 2014USD ($)	Dec. 31, 2017USD ($)	Jun. 30, 2014USD ($)
Number Of Potentially Responsible Parties			100
Estimated Cost of EPA Selected Remedy	$ 1,000
Estimated Time to Complete Selected EPA Remedy	13 years
Letters of Credit Outstanding, Amount			$ 2
Portland Harbor Natural Resources Trustee Council [Member]
Loss Contingency, Accrual, Current				$ 0.4
Loss Contingency Accrual, Payments		$ 0.2
Lower Willamette Group [Member]
Number Of Potentially Responsible Parties			14

Note 16 - Income Taxes (Details

Note 16 - Income Taxes (Details Textual) - USD ($)	3 Months Ended	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent			35.00%	35.00%	35.00%
Tax Adjustments, Settlements, and Unusual Provisions	$ 900,000
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability	600,000
Effective Income Tax Rate Reconciliation, Repatriation of Foreign Earnings, Amount	200,000
Foreign Earnings Repatriated	1,100,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	0		$ 0	$ 100,000
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense					$ 100,000
Domestic Tax Authority [Member]
Operating Loss Carryforwards	35,900,000		35,900,000
Tax Credit Carryforward, Amount	3,000,000		3,000,000
State and Local Jurisdiction [Member]
Operating Loss Carryforwards	51,500,000		51,500,000
Tax Credit Carryforward, Amount	$ 4,200,000		$ 4,200,000
Scenario, Forecast [Member]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent		21.00%

Note 16 - Income Taxes - Summar

Note 16 - Income Taxes - Summary of Components of Income Tax Expense for Continuing Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Current:
Federal	$ (454)	$ (740)	$ (5,076)
State	49	(102)	35
Total current income tax benefit	(405)	(842)	(5,041)
Deferred:
Federal	(766)	(2,883)	(5,524)
State	71	(373)	2,042
Total deferred income tax benefit	(695)	(3,256)	(3,482)
Income tax benefit	$ (1,100)	$ (4,098)	$ (8,523)

Note 16 - Income Taxes - Effect

Note 16 - Income Taxes - Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Income tax benefit at federal statutory rate of 35%	$ (3,322)	$ (3,755)	$ (9,133)
State benefit, net of federal income tax effect	(472)	(286)	(440)
Federal and state income tax credits	36	(154)	(5,060)
Disallowed domestic manufacturing deduction			630
Change in valuation allowance	1,570	585	2,059
Excess income tax shortfall on share-based compensation	765
Effect of Tax Cuts and Jobs Act of 2017	874
Uncertain income tax positions	(562)	(4)	1,275
Goodwill impairment (nondeductible)			1,849
Nondeductible expenses	63	63	91
Nontaxable adjustment to contingent consideration		(580)	103
Other	(52)	33	103
Income tax benefit	$ (1,100)	$ (4,098)	$ (8,523)
Effective income tax rate	(11.60%)	(37.80%)	(32.40%)

Note 16 - Income Taxes - Effe75

Note 16 - Income Taxes - Effective Income Tax Rate Reconciliation (Details) (Parentheticals)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Statutory rate	35.00%	35.00%	35.00%

Note 16 - Income Taxes - Summ76

Note 16 - Income Taxes - Summary of Current and Noncurrent Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Costs and estimated earnings in excess of billings on uncompleted contracts, net		$ 1,270
Accrued employee benefits	2,806	5,025
Inventories	296	563
Trade receivable, net	105	199
Net operating loss carryforwards	9,850	15,637
Tax credit carryforwards	5,478	5,069
Other assets	1,201	1,830
Other	81	1,018
Deferred tax assets, gross	19,817	30,611
Valuation allowance	(10,413)	(8,217)
Deferred tax assets, net	9,404	22,394
Costs and estimated earnings in excess of billings on uncompleted contracts, net	(110)
Property and equipment	(9,524)	(22,380)
Intangible assets	(433)	(819)
Prepaid expenses	(278)	(477)
Total deferred tax liabilities	(10,345)	(23,676)
Net deferred income tax liabilities	$ (941)	$ (1,282)

Note 16 - Income Taxes - Summ77

Note 16 - Income Taxes - Summary of Changes in Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Unrecognized income tax benefits, beginning of year	$ 4,874	$ 4,874	$ 2,313
Decreases for lapse in statute of limitations	(520)		(1,199)
Increases for positions taken in prior years			3,716
Decreases for positions taken in prior years	(238)
Increases for positions taken in the current year			44
Unrecognized income tax benefits, end of year	$ 4,116	$ 4,874	$ 4,874

Note 17 - Accumulated Other C78

Note 17 - Accumulated Other Comprehensive Loss - Summary of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	Dec. 31, 2017	Dec. 31, 2016
Pension liability adjustment, net of income tax benefit of $866 and $886	$ (1,436)	$ (1,493)
Unrealized gain (loss) on cash flow hedges, net of income tax expense (benefit) of $(1) and $6	(9)	10
Total	$ (1,445)	$ (1,483)

Note 17 - Accumulated Other C79

Note 17 - Accumulated Other Comprehensive Loss - Summary of Accumulated Other Comprehensive Loss (Details) (Parentheticals) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016
Pension liability adjustment, tax effect	$ 886	$ 866
Unrealized gain (loss) on cash flow hedges, tax effect	$ (1)	$ 6

Note 17 - Accumulated Other C80

Note 17 - Accumulated Other Comprehensive Loss - Components of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Beginning balance	$ 209,213	$ 217,560	$ 245,635
Other comprehensive income, net of tax	38	55	295
Ending balance	200,264	209,213	217,560
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Beginning balance	(1,493)	(1,624)
Other comprehensive loss before reclassifications	54	(125)
Amounts reclassified from Accumulated other comprehensive loss	3	256
Other comprehensive income, net of tax	57	131
Ending balance	(1,436)	(1,493)	(1,624)
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Beginning balance	10	86
Other comprehensive loss before reclassifications	(16)	(48)
Amounts reclassified from Accumulated other comprehensive loss	(3)	(28)
Other comprehensive income, net of tax	(19)	(76)
Ending balance	(9)	10	86
AOCI Attributable to Parent [Member]
Beginning balance	(1,483)	(1,538)	(1,833)
Other comprehensive loss before reclassifications	38	(173)
Amounts reclassified from Accumulated other comprehensive loss		228
Other comprehensive income, net of tax	38	55
Ending balance	$ (1,445)	$ (1,483)	$ (1,538)

Note 17 - Accumulated Other C81

Note 17 - Accumulated Other Comprehensive Loss - Reclassification of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Cost of sales									$ (126,957)	$ (149,704)	$ (172,554)
Tax (expense) benefit									1,100	4,098	8,523
Net loss	$ (2,158)	$ (2,069)	$ (2,068)	$ (3,868)	$ 5,834	$ 727	$ (6,242)	$ (9,583)	(10,163)	(9,263)	(29,388)
Net sales	$ 35,627	$ 38,804	$ 28,692	$ 29,657	$ 39,179	$ 41,075	$ 39,775	$ 29,358	132,780	149,387	173,160
Reclassification out of Accumulated Other Comprehensive Income [Member]
Net loss										(228)	(128)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Cost of sales									(3)	(392)	(352)
Tax (expense) benefit										136	131
Net loss									(3)	(256)	(221)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Tax (expense) benefit									(2)	(17)	(56)
Net loss									3	28	93
Net sales									5	45	147
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Gain (Loss) from Hedge Ineffectiveness [Member]
Net sales											$ 2

Note 18 - Restructuring (Detail

Note 18 - Restructuring (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Restructuring Charges	$ 881,000	$ 990,000
Employee Severance [Member]
Restructuring and Related Cost, Expected Cost Remaining	0	500,000
Demobilization Activities [Member]
Restructuring and Related Cost, Expected Cost Remaining	$ 900,000	$ 500,000

Note 20 - Quarterly Data (Una83

Note 20 - Quarterly Data (Unaudited) (Details Textual) - USD ($)	3 Months Ended		12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Gain (Loss) on Disposition of Property Plant Equipment			$ 51,000	$ (19,000)	$ (105,000)
Denver Facility [Member] | Water Transmission Group [Member]
Gain (Loss) on Disposition of Property Plant Equipment		$ 7,900,000
Cost of Sales [Member]
Workers Compensation Expense	$ 1,200,000

Note 20 - Quarterly Data (Una84

Note 20 - Quarterly Data (Unaudited) - Summary of Quarterly Financial Data (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended																12 Months Ended
	Dec. 31, 2017		Sep. 30, 2017		Jun. 30, 2017		Mar. 31, 2017		Dec. 31, 2016		Sep. 30, 2016		Jun. 30, 2016		Mar. 31, 2016		Dec. 31, 2017		Dec. 31, 2016		Dec. 31, 2015
Net sales	$ 35,627		$ 38,804		$ 28,692		$ 29,657		$ 39,179		$ 41,075		$ 39,775		$ 29,358		$ 132,780		$ 149,387		$ 173,160
Gross profit (loss)	2,076	[1]	1,915	[1]	667	[1]	1,165	[1]	3,766		2,939		(1,272)		(5,750)		5,823	[1]	(317)		606
Operating loss	(1,233)		(1,508)		(2,904)		(3,556)		6,334	[2]	(1,253)	[2]	(5,257)	[2]	(10,192)	[2]	(9,201)		(10,368)	[2]	(25,054)
Net loss	$ (2,158)		$ (2,069)		$ (2,068)		$ (3,868)		$ 5,834		$ 727		$ (6,242)		$ (9,583)		$ (10,163)		$ (9,263)		$ (29,388)
Continuing operations, basic and diluted (in dollars per share)	$ (0.20)		$ (0.16)		$ (0.15)		$ (0.37)										$ (0.88)		$ (0.71)		$ (1.86)
Discontinued operations, basic and diluted (in dollars per share)	(0.03)		(0.05)		(0.07)		(0.03)										(0.18)		(0.26)		(1.21)
Net loss per share, basic and diluted (in dollars per share)	$ (0.23)		$ (0.21)		$ (0.22)		$ (0.40)										(1.06)		(0.97)		(3.07)
Continuing operations (in dollars per share)									$ 0.71		$ 0.15		$ (0.55)		$ (1.01)		(0.88)		(0.71)		(1.86)
Discontinued operations (in dollars per share)									(0.10)		(0.07)		(0.10)		0.01		$ (0.18)		(0.26)		$ (1.21)
Net income (loss) per share, basic (in dollars per share)									0.61		0.08		(0.65)		(1)				(0.97)
Continuing operations, diluted (in dollars per share)									0.70		0.15		(0.55)		(1.01)				(0.71)
Discontinued operations, diluted (in dollars per share)									(0.10)		(0.07)		(0.10)		0.01				(0.26)
Net income (loss) per share assuming dilution (in dollars per share)									$ 0.60		$ 0.08		$ (0.65)		$ (1)				$ (0.97)
[1]	Gross profit for the fourth quarter of 2017 includes a charge of $1.2 million to cost of sales as a result of a change in estimate to workers compensation reserves.
[2]	Operating income for the fourth quarter of 2016 includes the gain on sale of facility of $7.9 million.

Schedule II - Valuation and Q85

Schedule II - Valuation and Qualifying Accounts - Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016		Dec. 31, 2015
Allowance for Doubtful Accounts [Member]
Balance at Beginning of Period	$ 515	$ 751	[1]	$ 755	[1]
Charged to Profit and Loss	637	295		416
Deduction from Reserves	(675)	(531)		(420)
Balance at End of Period	477	515		751	[1]
Valuation Allowance of Deferred Tax Assets [Member]
Balance at Beginning of Period	8,217	7,057		1,858
Charged to Profit and Loss	2,196	1,160		5,217
Deduction from Reserves				(18)
Balance at End of Period	$ 10,413	$ 8,217		$ 7,057
[1]	Includes amounts that were classified as held for sale.