Northwest Pipe (NWPX) 10-K 9 Mar 17 2016 FY Annual report Financial data

Document And Entity Information

Document And Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2016	Feb. 28, 2017	Jun. 30, 2016
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)		9,604,811
Entity Public Float			$ 88,579,821
Document Type	10-K
Document Period End Date	Dec. 31, 2016
Document Fiscal Year Focus	2,016
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, 2016	Dec. 31, 2015	Dec. 31, 2014
Net sales	$ 156,256	$ 236,608	$ 403,298
Cost of sales	159,481	249,233	362,722
Gross profit (loss)	(3,225)	(12,625)	40,576
Selling, general and administrative expense	17,178	22,303	24,316
Impairment of goodwill		5,282	16,066
Restructuring expense	990
Operating income (loss)	(13,533)	(40,210)	194
Other income	23	88	108
Interest income	14	173	466
Interest expense	(523)	(1,390)	(2,290)
Loss before income taxes	(14,019)	(41,339)	(1,522)
Income tax expense (benefit)	(4,756)	(11,951)	4,651
Loss from continuing operations	(9,263)	(29,388)	(6,173)
Discontinued operations:
Loss from operations of discontinued business			(2,151)
Loss on sale of business			(13,497)
Income tax benefit			(3,934)
Loss on discontinued operations			(11,714)
Net loss	$ (9,263)	$ (29,388)	$ (17,887)
Basic and diluted loss per share:
Continuing operations (in dollars per share)	$ (0.97)	$ (3.07)	$ (0.65)
Discontinued operations (in dollars per share)			(1.23)
Net loss per share (in dollars per share)	$ (0.97)	$ (3.07)	$ (1.88)
Shares used in per share calculations:
Basic and diluted (in shares)	9,588	9,560	9,515
Denver Facility [Member]
(Gain) Loss on disposal of property and equpiment	$ (7,860)

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Net loss	$ (9,263)	$ (29,388)	$ (17,887)
Other comprehensive income (loss), net of tax:
Pension liability adjustment	131	238	(587)
Unrealized gain (loss) on cash flow hedges	(76)	57	15
Other comprehensive income (loss), net of tax	55	295	(572)
Comprehensive loss	$ (9,208)	$ (29,093)	$ (18,459)

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Current assets:
Cash and cash equivalents	$ 21,829	$ 10,309
Trade and other receivables, less allowance for doubtful accounts of $515 and $751	25,555	27,567
Costs and estimated earnings in excess of billings on uncompleted contracts	43,663	42,592
Inventories	19,037	29,475
Refundable income taxes	159	3,413
Prepaid expenses and other	1,937	1,923
Total current assets	112,180	115,279
Property and equipment, net	118,101	131,848
Other assets	11,274	12,253
Total assets	241,555	259,380
Current liabilities:
Accounts payable	5,267	4,739
Accrued liabilities	10,925	15,971
Billings in excess of costs and estimated earnings on uncompleted contracts	2,038	520
Current portion of capital lease obligations	325	340
Total current liabilities	18,555	21,570
Capital lease obligations, less current portion	602	718
Deferred income taxes	1,282	5,124
Other long-term liabilities	11,903	14,408
Total liabilities	32,342	41,820
Commitments and contingencies (Note 14)
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, 9,601,011 and 9,564,752 shares issued and outstanding	96	96
Additional paid-in-capital	118,680	117,819
Retained earnings	91,920	101,183
Accumulated other comprehensive loss	(1,483)	(1,538)
Total stockholders’ equity	209,213	217,560
Total liabilities and stockholders’ equity	$ 241,555	$ 259,380

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parentheticals) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Allowance for doubtful accounts	$ 515	$ 751
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)	9,601,011	9,564,752
Common stock, shares outstanding (in shares)	9,601,011	9,564,752

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, 2013	9,449,299
Balances at Dec. 31, 2013	$ 94	$ 114,559	$ 148,458	$ (1,261)	$ 261,850
Net loss			(17,887)		(17,887)
Foreign currency cash flow hedge, net				15	15
Pension liability adjustment				(587)	(587)
Issuance of common stock under stock compensation plans (in shares)	70,768
Issuance of common stock under stock compensation plans	$ 1	(1,256)			(1,255)
Tax benefit from stock compensation plans		553			553
Share-based compensation expense		2,946			2,946
Balances (in shares) at Dec. 31, 2014	9,520,067
Balances at Dec. 31, 2014	$ 95	116,802	130,571	(1,833)	245,635
Net loss			(29,388)		(29,388)
Foreign currency cash flow hedge, net				57	57
Pension liability adjustment				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
Share-based compensation expense		1,774			1,774
Balances (in shares) at Dec. 31, 2015	9,564,752
Balances at Dec. 31, 2015	$ 96	117,819	101,183	(1,538)	217,560
Tax deficiency from stock compensation plans		(352)			(352)
Net loss			(9,263)		(9,263)
Foreign currency cash flow hedge, net				(76)	(76)
Pension liability adjustment				131	131
Issuance of common stock under stock compensation plans (in shares)	36,259
Issuance of common stock under stock compensation plans		(31)			(31)
Share-based compensation expense		1,801			1,801
Balances (in shares) at Dec. 31, 2016	9,601,011
Balances at Dec. 31, 2016	$ 96	118,680	$ 91,920	$ (1,483)	209,213
Tax deficiency from stock compensation plans		$ (909)			$ (909)

Consolidated Statements of Sto7

Consolidated Statements of Stockholders' Equity (Parentheticals) - AOCI Attributable to Parent [Member] - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Foreign currency cash flow hedge, tax expense (benefit)	$ (43)	$ 34	$ 9
Pension liability adjustment, tax expense (benefit)	$ 82	$ 237	$ (285)

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cash flows from operating activities:
Net loss	$ (9,263)	$ (29,388)	$ (17,887)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and capital lease amortization	9,446	9,092	13,606
Impairment of goodwill		5,282	16,066
Loss on sale of business			13,497
Amortization of Intangible Assets	523	523	540
Amortization of debt issuance costs	166	598	377
Provision for doubtful accounts	295	(4)	70
Deferred income taxes	(4,750)	(3,560)	2,894
Share-based compensation expense	1,801	1,774	2,946
Excess tax benefit from stock compensation plans		(19)	(553)
Adjustments to contingent consideration	(1,657)	(211)	(1,746)
Unrealized loss (gain) on foreign currency forward contracts	170	295	(13)
Other, net			25
Changes in operating assets and liabilities:
Trade and other receivables	2,122	26,780	7,984
Insurance settlements		2,625
Costs and estimated earnings in excess of billings on uncompleted contracts, net	447	940	4,088
Inventories	10,488	43,695	6,039
Refundable income taxes	3,254	1,285	(3,405)
Prepaid expenses and other assets	(11)	896	754
Accounts payable	866	(9,894)	(5,273)
Deferred revenue		(271)	(4,573)
Accrued and other liabilities	(4,538)	4,663	(881)
Net cash provided by operating activities	1,519	55,206	35,044
Cash flows from investing activities:
Additions to property and equipment	(2,292)	(8,515)	(14,289)
Proceeds from sale of business		4,300	29,791
Collections on notes receivable		7,219	56
Other investing activities			(25)
Net cash provided by investing activities	11,655	3,059	15,541
Cash flows from financing activities:
Proceeds from issuance of common stock		1	28
Tax withholdings related to net share settlements of restricted share and performance share awards	(31)	(424)	(1,283)
Excess tax benefit from stock compensation plans		19	553
Payments on long-term debt			(6,357)
Borrowings on line of credit		79,250	230,581
Repayments on line of credit		(124,837)	(272,913)
Payments of debt issuance costs		(302)
Payments on capital lease obligations	(390)	(2,190)	(1,255)
Payments of contingent consideration	(1,233)
Net cash used in financing activities	(1,654)	(48,483)	(50,646)
Change in cash and cash equivalents	11,520	9,782	(61)
Cash and cash equivalents, beginning of period	10,309	527	588
Cash and cash equivalents, end of period	21,829	10,309	527
Supplemental disclosure of cash flow information:
Cash paid during the period for interest, net of amounts capitalized	283	846	2,271
Cash (received) paid during the period for income taxes (net of refunds of $3,427, $7,949 and $393)	(3,322)	(7,743)	1,982
Noncash investing and financing activities:
Accrued property and equipment purchases	59	397	1,243
Capital lease additions	259	854	804
Denver Facility [Member]
Adjustments to reconcile net loss to net cash provided by operating activities:
(Gain) Loss on disposal of property and equpiment	(7,860)
Cash flows from investing activities:
Proceeds from sale of property and equipment	13,914
All Other Property and Equipment [Member]
Adjustments to reconcile net loss to net cash provided by operating activities:
(Gain) Loss on disposal of property and equpiment	20	105	489
Cash flows from investing activities:
Proceeds from sale of property and equipment	$ 33	$ 55	$ 8

Consolidated Statements of Cas9

Consolidated Statements of Cash Flows (Parentheticals) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Tax refunds	$ 3,427	$ 7,949	$ 393

Note 1 - Organization

Note 1 - Organization	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]	1. ORGANIZATION : Northwest Pipe Company (collectively with its subsidiaries, the “Company”) operates in two The Water Transmission segment primarily produces steel pipeline systems for use in drinking water infrastructure and has manufacturing facilities located in Portland, Oregon; Denver, Colorado (sold in October 2016); The Tubular Products segment primarily produces steel line pipe products for energy applications and has a manufacturing facility located in Atchison, Kansas. The Atchison facility operated at reduced levels from April 2015 January 2016,

Note 2 - Summary of Significant

Note 2 - Summary of Significant Accounting Policies	12 Months Ended
	Dec. 31, 2016
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. On March 30, 2014, Lucid Energy Inc. (“Lucid”), over which the Company exercises significant influence but does not control, 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, 2016 2015 Disposal of OCTG Business On March 30, 2014, $42.7 $13.5 $4.4 $4.3 $5.0 $1.8 $1.8 September 2014, $29.8 April 2015, $4.3 The table below presents the operating results for the Company’s discontinued operations (in thousands). These operating results for the year ended December 31, 2014 Net sales $ 22,225 Cost of sales 23,881 Gross loss (1,656 ) Selling, general and administrative expense 396 Operating loss (2,052 ) Loss on sale of business (13,497 ) Interest expense (99 ) Loss before income taxes (15,648 ) Income tax benefit (3,934 ) Loss on discontinued operations $ (11,714 ) Cash and Cash Equivalents Cash and cash equivalents consist of cash and short-term, highly liquid investments with maturities of three December 31, 2016 2015. 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, 2016 2015 may Inventories Inventories are stated at the lower of cost or market. Raw material inventories of steel, stated at cost, are either on a specific identification basis or on an average cost basis. All other raw material inventories, as well as work-in-process and supplies, stated at cost, are on an average cost basis. Finished goods, stated at cost, use the 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 Goodwill and Intangible Assets 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, 2016, In evaluating goodwill, the Company looks at the long-term prospects for the reporting unit and recognizes that current performance may 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 3 15 See Note 6, 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. As of December 31, 2016, $3.4 $0.6 $2.8 Accrued Liabilities Accrued liabilities consist of the following (in thousands): December 31, 2016 2015 Accrued liabilities: Accrued vacation payable $ 2,313 $ 3,029 Reserves for expected losses on uncompleted contracts 1,409 5,933 Litigation accrual 1,750 - Accrued property taxes 1,096 1,280 Contingent consideration payable 84 1,211 Other 4,273 4,518 Total accrued liabilities $ 10,925 $ 15,971 Pension Benefits The Company has two 2001. Derivative Instruments The Company conducts business in 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 qualify for cash flow hedge accounting treatment are remeasured at fair value at each balance sheet date and resulting gains and losses are recognized in net income (loss). 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 in the Company’s Water Transmission Group 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 Revenue from the Company’s Tubular Products Group is recognized when all four 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 was 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 12, 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 that an income tax benefit will be sustained, the largest amount of income tax benefit with a greater than 50% 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 16, Loss per Share Loss per basic and diluted weighted average common shares outstanding was calculated as follows for the years ended December 31 2016 2015 2014 Loss from continuing operations $ (9,263 ) $ (29,388 ) $ (6,173 ) Loss from discontinued operations - - (11,714 ) Net loss $ (9,263 ) $ (29,388 ) $ (17,887 ) Basic weighted-average common shares outstanding 9,588 9,560 9,515 Effect of potentially dilutive common shares (1) - - - Diluted weighted-average common shares outstanding 9,588 9,560 9,515 Loss per basic and diluted common share: Continuing operations $ (0.97 ) $ (3.07 ) $ (0.65 ) Discontinued operations - - (1.23 ) Total $ (0.97 ) $ (3.07 ) $ (1.88 ) Antidilutive shares excluded from net loss per diluted common share calculation 27 52 65 (1) Represents the effect of the assumed exercise of stock options and the vesting of restricted stock units and performance share awards, based on the treasury stock method. 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, 2016, two 10% December 31, 2015, 10% Recent Accounting and Reporting Developments Accounting Changes In August 2014, 2014 15, 205 40): 2014 15”). 2014 15 one December 31, 2016 In May 2015, 2015 07, 820): 2015 07”). 2015 07 January 1, 2016 Recent Accounting Standards In May 2014, 2014 09, 606)” 2014 09”) 2014 09 January 1, 2018, 2018, March 2016, 2016 08, 606): April 2016, 2016 10, 606): May 2016, 2016 11, 606) 815)–Rescission 2014 09 2014 16” 2016 12, 606): December 2016, 2016 20, 606, five 2014 09, 2014 09.The 2014 09. In July 2015, 2015 11, 330): 2015 11”). 2015 11, January 1, 2017. In January 2016, 2016 01, 825 10): 2016 01”). 2016 01 January 1, 2018. In February 2016, 2016 02, 842)” 2016 02”). 2016 02 12 January 1, 2019, In March 2016, 2016 09, 718): 2016 09”). 2016 09 December 15, 2016, In August 2016, 2016 15, 230): 2016 15”). 2016 15 eight December 15, 2017,

Note 3 - Cost and Estimated Ear

Note 3 - 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, 2016
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]	3 . COSTS AND ESTIMATED EARNINGS IN EXCESS OF BILLINGS ON UNCOMPLETED CONTRACTS AND BILLINGS IN EXCESS OF COSTS AND ESTIMATED EARNINGS: Costs and estimated earnings in excess of billings on uncompleted contracts represents revenue earned under the percentage-of-completion method but not yet billable based on the terms of the contracts. These amounts are billed based on the terms of the contracts, which include achievement of milestones, partial shipments or completion of the contracts. Billings in excess of costs and estimated earnings on uncompleted contracts represents amounts billed based on the terms of the contracts in advance of costs incurred and revenue earned. December 31, 2016 2015 (in thousands) Costs incurred on uncompleted contracts $ 238,050 $ 210,716 Estimated earnings 7,247 31,921 245,297 242,637 Less billings to date (203,672 ) (200,565 ) $ 41,625 $ 42,072 Amounts are presented in the Consolidated Balance Sheets as follows: Costs and estimated earnings in excess of billings on uncompleted contracts $ 43,663 $ 42,592 Billings in excess of costs and estimated earnings on uncompleted contracts (2,038 ) (520 ) $ 41,625 $ 42,072

Note 4 - Inventories

Note 4 - Inventories	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Inventory Disclosure [Text Block]	4 . INVENTORIES: Inventories consist of the following (in thousands): December 31, 2016 2015 Short-term inventories: Raw materials $ 15,411 $ 21,486 Work-in-process 1,235 1,901 Finished goods 40 3,641 Supplies 2,351 2,447 Total short-term inventories 19,037 29,475 Long-term inventories: Finished goods 773 823 Total inventories $ 19,810 $ 30,298 Long-term inventories are recorded in Other assets.

Note 5 - Property and Equipment

Note 5 - Property and Equipment	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Property, Plant and Equipment Disclosure [Text Block]	5 . PROPERTY AND EQUIPMENT: Property and equipment, net consists of the following (in thousands): December 31, 2016 2015 Land and improvements $ 22,288 $ 23,903 Buildings 38,922 44,409 Machinery and equipment 139,189 146,704 Equipment under capital lease 1,126 924 Construction in progress 2,180 2,359 203,705 218,299 Less accumulated depreciation and amortization (85,604 ) (86,451 ) Property and equipment, net $ 118,101 $ 131,848 Accumulated amortization associated with equipment under capital lease was $0.6 $0.3 December 31, 2016 2015, On October 4, 2016, $13.9 $7.9 fourth 2016. March 1, 2017,

Note 6 - Goodwill and Intangibl

Note 6 - Goodwill and Intangible Assets	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Goodwill Disclosure [Text Block]	6 . GOODWILL AND INTANGIBLE ASSETS : Goodwill Goodwill represents the excess of purchase price over the assigned fair values of the assets and liabilities assumed in conjunction with an acquisition. As discussed in Note 2, December 31 may December 31, 2016 2015. Due to Water Transmission market conditions in 2015, $5.3 June 30, 2015, second 2015. Due to negative impacts on the Tubular Products business as a result of the worldwide turmoil in crude oil markets, which became significant in the fourth 2014, $16.1 December 31, 2014. $4.4 two March 2014, Intangible Assets Intangible assets, included in Other assets on the Consolidated Balance Sheets, consist of the following (in thousands): Gross Carrying Accumulated Intangible Amount Amortization Assets, Net As of December 31, 2016 Customer relationships $ 1,378 $ (413 ) $ 965 Patents 1,162 (697 ) 465 Trade names and trademarks 1,132 (226 ) 906 Other (1) 295 (233 ) 62 Total $ 3,967 $ (1,569 ) $ 2,398 As of December 31, 2015 Customer relationships $ 1,378 $ (275 ) $ 1,103 Patents 1,162 (465 ) 697 Trade names and trademarks 1,132 (151 ) 981 Other (1) 295 (155 ) 140 Total $ 3,967 $ (1,046 ) $ 2,921 (1) Amortization expense was $0.5 December 31, 2016, 2015 2014. five Year ending December 31, 2017 $ 495 2018 459 2019 213 2020 213 2021 213 Thereafter 805 $ 2,398

Note 7 - Line of Credit

Note 7 - Line of Credit	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Debt Disclosure [Text Block]	7 . LINE OF CREDIT : The Company’s Loan and Security Agreement (the “Agreement”) with Bank of America, N.A, as amended, expires on October 25, 2018 $60 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, 2016 2015, December 31, 2016, $13.0 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 conjunction with entering into the Agreement in October 2015, October 24, 2012. $0.4 fourth 2015 Interest expense for continuing operations from line of credit borrowings, term notes and capital leases was $0.5 2016, $1.4 $0.1 2015 $2.3 $0.2 2014. 2016. 2014.

Note 8 - Leases

Note 8 - Leases	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Leases of Lessee Disclosure [Text Block]	8 . LEASES: Capital Leases The Company leases certain equipment used in the manufacturing process. The Company had a total of $0.9 December 31, 2016. 4.55%. December 31, 2016 2017 $ 358 2018 257 2019 230 2020 134 2021 18 Total minimum lease payments 997 Amount representing interest (70 ) Present value of minimum lease payments 927 Current portion of capital lease obligation 325 Capital lease obligation, less current portion $ 602 Interest expense related to a capital lease at the Company’s former Bossier, Louisiana facility of $0.1 2014 Operating Leases The Company has entered into various equipment and property leases with terms of ten December 31, 2016, 2015 2014 $3.0 $3.2 $3.2 one December 31, 2016 2017 $ 2,427 2018 1,313 2019 897 2020 794 2021 489 Thereafter 1,345 $ 7,265

Note 9 - Fair Value Measurement

Note 9 - Fair Value Measurements	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Fair Value Disclosures [Text Block]	9 . FAIR VALUE MEASUREMENTS: Assets/Liabilities Measured and Recorded at Fair Value on a Recurring Basis 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 guidance for fair value measurements also applies to nonrecurring fair value measurements of nonfinancial assets and liabilities. 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 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, 2016 Total Level 1 Level 2 Level 3 Financial assets: Deferred compensation plan $ 6,209 $ 5,215 $ 994 $ - Derivatives 58 - 58 - Total assets $ 6,267 $ 5,215 $ 1,052 $ - Financial liabilities: Derivatives $ (8 ) $ - $ (8 ) $ - As of December 31, 2015 Total Level 1 Level 2 Level 3 Financial assets: Deferred compensation plan $ 6,357 $ 5,075 $ 1,282 $ - Derivatives 296 - 296 - Total assets $ 6,653 $ 5,075 $ 1,578 $ - Financial liabilities: Contingent consideration $ (2,974 ) $ - $ - $ (2,974 ) The deferred compensation plan assets consists 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 contingent consideration liability is associated with the acquisition of Permalok Corporation in December 2013. December 31, 2015, 3 The net carrying amounts of cash and cash equivalents, trade and other receivables, accounts payable, accrued liabilities and borrowings on line of credit approximate fair value due to the short-term nature of these instruments. Assets Measured and Recorded at Fair Value on a Nonrecurring Basis The Company measures its financial assets, including loans receivable and non-marketable equity 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 December 31, 2016, 2015 2014. 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 See Note 6,

Note 10 - Derivative Instrument

Note 10 - Derivative Instruments and Hedging Activities	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Derivative Instruments and Hedging Activities Disclosure [Text Block]	10 . DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES: 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. Instruments that do not qualify for cash flow hedge accounting treatment are remeasured at fair value on each balance sheet date and resulting gains and losses are recognized in earnings. As of December 31, 2016 2015, $0.9 (CAD$1.3 $0, December 31, 2016 2015, $3.4 (CAD$4.5 $6.3 (CAD$8.7 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 Other comprehensive income (loss) on the Consolidated Statements of Stockholders’ Equity. If it is determined that a derivative contract is not highly effective, or that it has ceased to be a highly effective hedge, the Company will be required to discontinue hedge accounting with respect to that derivative contract prospectively. All of the Company’s Canadian forward contracts have maturities less than twelve December 31, 2016. For the years ended December 31, 2016, 2015 2014, $0, $0.4 $0.1 December 31, 2016 2015, $0 $0.1 December 31, 2016 twelve 16,

Note 11 - Retirement Plans

Note 11 - Retirement Plans	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Pension and Other Postretirement Benefits Disclosure [Text Block]	11 . 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, As of December 31, 2016, $1.9 $1.5 December 31, 2015, $1.9 $1.6 December 31, 2016 2015, $6.5 $6.4 $4.6 $4.5 The net periodic benefit cost for the years ended December 31, 2016, 2015 2014 $0.4 $0.4 $0.2 3.74% 3.91% December 31, 2016 2015, 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 categorized in the fair value hierarchy. The expected weighted average long-term rate of return on plan assets was 7.5% December 31, 2016 2015. Non-qualified Retirement Savings Plan The Company has a deferred compensation plan that covered officers and selected highly compensated employees. This deferred compensation plan was frozen effective as of December 31, 2016. 50% first $10,000 first $5,000 2015. 35% 35 1% 8% 8%, 8%, December 31, 2016 2015, $6.2 $6.4 Total expense for all retirement plans for the years ended December 31, 2016, 2015 2014 $1.4 $1.5 $1.8

Note 12 - Share-based Compensat

Note 12 - Share-based Compensation	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Disclosure of Compensation Related Costs, Share-based Payments [Text Block]	12 . SHARE-BASED COMPENSATION: The Company has one 2007 one 1995 60 ten three three Year ended December 31, 2016 2015 2014 Cost of sales $ 422 $ 412 $ 337 Selling, general and administrative expense 1,379 1,362 2,609 Total $ 1,801 $ 1,774 $ 2,946 As of December 31, 2016, $1.0 1.0 There were no options granted during the years ended December 31, 2016, 2015 2014. 557,098 December 31, 2016. Stock Options Awards A summary of option activity under the Company’s stock option plans as of December 31, 2016 Options Weighted Average Exercise Price Weighted Average Remaining Contractual Life Aggregate Intrinsic Value (in years) (in thousands) Balance, December 31, 2015 28,000 $ 25.21 Options granted - - Options exercised - - Options canceled (2,000 ) 28.31 Balance, December 31, 2016 26,000 24.97 Exercisable, December 31, 2016 26,000 24.97 3.03 $ - The total intrinsic value, defined as the difference between the current market value and the grant price, of options exercised during the years ended December 31, 2015 2014 $0. 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. There were no PSAs granted during the years ended December 31, 2016 2015. December 31, 2014 Expected stock price volatility 23.7% - 65.0% Risk free interest rate 0.61% Expected dividend yield 0% A summary of activity under the Company’s RSUs and PSAs as of December 31, 2016 Number of RSUs and PSAs (1) Weighted Average Grant Date Fair Value Unvested RSUs and PSAs at December 31, 2015 127,852 $ 38.87 RSUs and PSAs granted 169,583 9.50 Unvested RSUs and PSAs canceled (63,432 ) 36.96 RSUs and PSAs vested (12,212 ) 31.50 Unvested RSUs and PSAs at December 31, 2016 221,791 $ 17.36 (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 0% 200%. The weighted average grant date fair value of RSUs and PSAs granted during the year ended December 31, 2014 $41.76. No December 31, 2015. December 31, 2016, 2015 2014 $0.1 $1.6 $3.5 Stock Awards For the years ended December 31, 2016, 2015 2014, 27,640 10,464 9,150 $9.95 2016, $21.02 2015 $36.00 $36.41 2014.

Note 13 - Shareholder Rights Pl

Note 13 - Shareholder Rights Plan	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Shareholder Rights Plan Disclosure [Text Block]	13 . SHAREHOLDER RIGHTS PLAN: In June 1999, 150,000 one July 9, 1999. one one $83.00, tender 15% two may $0.01 On June 18, 2009, June 28, 1999 June 28, 2009 June 28, 2019 .

Note 14 - Commitments and Conti

Note 14 - Commitments and Contingencies	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	14 . COMMITMENTS AND CONTINGENCIES: Portland Harbor Superfund On December 1, 2000, 2008, 104 14 February 2016. June 2016 January 2017 $1.05 13 In 2001, one 2002 2003 February 2005, 2016 third 2016, September 2016 2016, third 2017, Concurrent with the activities of the EPA and 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. January 2017, 2009, The Company’s potential liability is a portion of the costs of the remedy the EPA will select for the entire Portland Harbor Superfund Site. The cost of that remedy is expected to be allocated among more than 100 may In December 2014, two $2.6 January 2015 2014. Houston Environmental Issue In connection with the Company’s sale of its OCTG business, a Limited Phase II Environmental Site Assessment was conducted at the Houston, Texas plant and completed in March 2014, June 2014, 2, The proposed remediation approach includes a municipal setting designation ordinance, approved by the City of Houston City Council in January 2017, The Company has completed an initial assessment and continues to monitor groundwater. In October 2016, December 2016 first 2017 $0.1 $1.7 December 31, 2016, $0.2 third 2017 third 2019. 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 believe that future compliance with such laws and regulations will have a material adverse effect on its financial position, results of operations or cash flows. 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 cover legal, defense and indemnification costs associated with a loss contingency, the Company records accruals when such losses are considered probable and reasonably estimable. As of December 31, 2016, $1.8 Guarantees The Company has entered into certain letters of credit that total $2.0 December 31, 2016.

Note 15 - Income Taxes

Note 15 - Income Taxes	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Income Tax Disclosure [Text Block]	15. INCOME TAXES: The components of Income tax expense (benefit) from continuing operations are as follows (in thousands): Year Ended December 31, 2016 2015 2014 Current: Federal $ (740 ) $ (5,076 ) $ 4,336 State (102 ) 26 334 Total current income tax expense (benefit) (842 ) (5,050 ) 4,670 Deferred: Federal (3,541 ) (8,855 ) 305 State (373 ) 1,954 (324 ) Total deferred income tax benefit (3,914 ) (6,901 ) (19 ) $ (4,756 ) $ (11,951 ) $ 4,651 The difference between the Company’s effective income tax rate and the federal statutory income tax rate of 35% Year Ended December 31, 2016 2015 2014 Income tax benefit at federal statutory rate of 35% $ (4,907 ) $ (14,470 ) $ (532 ) State benefit, net of federal income tax effect (362 ) (866 ) (96 ) Federal and state income tax credits (154 ) (6,684 ) (91 ) Disallowed domestic manufacturing deduction - 630 - Change in valuation allowance 1,155 5,210 9 Uncertain income tax positions (4 ) 2,082 5 Goodwill impairment (nondeductible) - 1,849 5,623 Nondeductible expenses 63 91 207 Nontaxable adjustment to contingent consideration (580 ) 103 (611 ) Other 33 104 137 Income tax expense (benefit) $ (4,756 ) $ (11,951 ) $ 4,651 Effective income tax rate (33.9 ) % (28.9 ) % 305.6 % 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, 2016 2015 Deferred income tax assets: Costs and estimated earnings in excess of billings on uncompleted contracts, net $ 1,270 $ 2,888 Accrued employee benefits 5,025 5,946 Inventories 563 2,618 Trade receivable, net 199 266 Net operating loss carryforwards 15,637 7,843 Tax credit carryforwards 5,069 4,791 Other assets 1,830 2,737 Other 1,018 520 30,611 27,609 Valuation allowance (8,217 ) (7,057 ) 22,394 20,552 Deferred income tax liabilities: Property and equipment (22,380 ) (24,229 ) Intangible assets (819 ) (980 ) Prepaid expenses (477 ) (467 ) (23,676 ) (25,676 ) Net deferred income tax liabilities $ (1,282 ) $ (5,124 ) In assessing the ability to realize deferred income tax assets, management considers whether it is more likely than not that some portion or all of the deferred income tax assets will not be realized. The ultimate realization of deferred income tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. Management considers the scheduled reversal of deferred income tax liabilities, projected future taxable income, taxable income in carryback periods and tax planning strategies in making this assessment. Because the Company has a recent history of generating cumulative losses, management did not consider projections of future taxable income as persuasive evidence for the recoverability of its deferred income tax assets. The Company believes it is more likely than not it will realize the benefits of its deductible differences as of December 31, 2016, As of December 31, 2016, $40.0 2035 2036, $3.3 2023 2036. December 31, 2016, $46.9 2019 2036, $4.2 2017. During the year ended December 31, 2016, The Company files income tax returns in the United States Federal jurisdiction, in a limited number of foreign jurisdictions and in many state jurisdictions. Internal Revenue Service examinations have been completed for years prior to 2011. With few exceptions, the Company is no longer subject to United States Federal, state or foreign income tax examinations for years before 2012. A summary of the changes in the unrecognized income tax benefits is presented below (in thousands): Year Ended December 31, 2016 2015 2014 Unrecognized income tax benefits, beginning of year $ 4,874 $ 2,313 $ 6,207 Decreases for settlements - - (3,265 ) Decreases for lapse in statute of limitations - (1,199 ) (115 ) Decreases for positions taken in current year - - (615 ) Increases for positions taken in prior years - 3,716 101 Increases for positions taken in the current year - 44 - Unrecognized income tax benefits, end of year $ 4,874 $ 4,874 $ 2,313 It is reasonably possible that the total amounts of unrecognized income tax benefits will change in the following twelve The Company recognizes interest and penalties related to uncertain income tax positions in Income tax expense. As of December 31, 2016 2015, $0.1 2016 $0.1 2015 2014.

Note 16 - Accumulated Other Com

Note 16 - Accumulated Other Comprehensive Loss	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Comprehensive Income (Loss) Note [Text Block]	16 . ACCUMULATED OTHER COMPREHENSIVE LOSS : Accumulated other comprehensive loss consists of the following (in thousands): December 31, 2016 2015 Pension liability adjustment, net of income tax benefit of $886 and $966 $ (1,493 ) $ (1,624 ) Deferred gain on cash flow derivatives, net of income tax expense of $6 and $49 10 86 Total $ (1,483 ) $ (1,538 ) The following table summarizes changes in the components of Accumulated other comprehensive loss during the years ended December 31, 2016 2015 Defined Benefit Pension Items Gains (Losses) on Cash Flow Hedges Total Balance, December 31, 2014 $ (1,862 ) $ 29 $ (1,833 ) Other comprehensive income before reclassifications 17 150 167 Amounts reclassified from Accumulated other comprehensive loss 221 (93 ) 128 Net current period adjustments to Other comprehensive income (loss) 238 57 295 Balance, December 31, 2015 (1,624 ) 86 (1,538 ) Other comprehensive loss before reclassifications (125 ) (48 ) (173 ) Amounts reclassified from Accumulated other comprehensive loss 256 (28 ) 228 Net current period adjustments to Other comprehensive income (loss) 131 (76 ) 55 Balance, December 31, 2016 $ (1,493 ) $ 10 $ (1,483 ) The following table provides additional detail about accumulated other comprehensive income (loss) components that were reclassified to the Consolidated Statements of Operations (in thousands): Year Ended December 31, 2016 2015 2014 Details about Accumulated Other Comprehensive Income (Loss) Components Amount reclassified from Accumulated Other Comprehensive Loss Affected line item in the Consolidated Statements of Operations Defined benefit pension items: Net periodic pension cost $ (392 ) $ (352 ) $ (182 ) Cost of sales Associated income tax benefit 136 131 68 Income tax expense (256 ) (221 ) (114 ) Net of tax Deferred gain on cash flow derivatives: Gain on cash flow derivatives 45 147 6 Net sales Hedge ineffectiveness - 2 (3 ) Net sales Associated income tax expense (17 ) (56 ) (1 ) Income tax expense 28 93 2 Net of tax Total reclassifications for the period $ (228 ) $ (128 ) $ (112 )

Note 17 - Segment Information

Note 17 - Segment Information	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Segment Reporting Disclosure [Text Block]	17 . SEGMENT INFORMATION: The operating segments reported below are based on the nature of the products sold and the manufacturing process used by the Company and are the segments of the Company for which separate financial information is available and for which operating results are regularly evaluated by the Company’s chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance. Management evaluates segment performance based on operating income. The Company’s Water Transmission segment manufactures large-diameter, high-pressure steel pipeline systems for use in water infrastructure applications, which are primarily related to drinking water systems. These products are also used for hydroelectric power systems, wastewater systems and other applications. In addition, the Water Transmission segment makes products for industrial plant piping systems and certain structural applications. The Company’s Tubular Products segment manufactures and markets smaller diameter, electric resistance welded steel pipe used in a wide range of applications, including energy, construction, agricultural and industrial systems. On March 30, 2014 April 2015 January 2016, Based on the location of the customer, the Company sold principally all products in the United States and Canada. In 2016, one 27% 10% 2015. 16% one 10% 2014. Year Ended December 31, 2016 2015 2014 (in thousands) Net sales from continuing operations: Water Transmission $ 149,387 $ 173,160 $ 238,545 Tubular Products 6,869 63,448 164,753 Total $ 156,256 $ 236,608 $ 403,298 Gross profit (loss) from continuing operations: Water Transmission $ (317 ) $ 606 $ 39,601 Tubular Products (2,908 ) (13,231 ) 975 Total $ (3,225 ) $ (12,625 ) $ 40,576 Operating income (loss) from continuing operations: Water Transmission (1) $ 1,049 $ (11,592 ) $ 31,490 Tubular Products (2) (3,336 ) (15,699 ) (16,677 ) (2,287 ) (27,291 ) 14,813 Corporate (11,246 ) (12,919 ) (14,619 ) Total $ (13,533 ) $ (40,210 ) $ 194 Net sales from continuing operations by geographic region: United States $ 144,280 $ 224,691 $ 383,344 Canada 11,976 11,917 19,954 Total $ 156,256 $ 236,608 $ 403,298 (1) 2016 $1.0 $7.9 2015 $5.3 (2) 2014 $16.1 The following includes discontinued operations within Tubular Products in 2014: Year Ended December 31, 2016 2015 2014 (in thousands) Depreciation and amortization expense: Water Transmission $ 8,750 $ 7,318 $ 8,716 Tubular Products 776 1,859 5,090 9,526 9,177 13,806 Corporate 443 438 340 Total $ 9,969 $ 9,615 $ 14,146 Capital expenditures: Water Transmission $ 2,072 $ 6,313 $ 6,190 Tubular Products - 1,879 7,526 2,072 8,192 13,716 Corporate 220 323 573 Total $ 2,292 $ 8,515 $ 14,289 December 31, 2016 2015 (in thousands) Total assets: Water Transmission $ 170,486 $ 185,607 Tubular Products 40,402 48,785 210,888 234,392 Corporate 30,667 24,988 Total $ 241,555 $ 259,380 All property and equipment is located in the United States, except for $4.1 $4.3 December 31, 2016 2015,

Note 18 - Restructuring

Note 18 - Restructuring	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Restructuring and Related Activities Disclosure [Text Block]	18. RESTRUCTURING: In June 2016, $1.0 December 31, 2016, $0.5 $0.1 $0.5 December 31, 2016. $1.0 In April 2015, $0.6 $0.5 $0.1 $0.1 December 31, 2015 2016.

Note 19 - Related Party Transac

Note 19 - Related Party Transactions	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Related Party Transactions Disclosure [Text Block]	19. RELATED PARTY TRANSACTIONS: In the second 2015, May 2016. ten September 30, 2015, five 2015. During 2014, $1.2 ten

Note 20 - Quarterly Data (Unaud

Note 20 - Quarterly Data (Unaudited)	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Quarterly Financial Information [Text Block]	20 . QUARTERLY DATA (UNAUDITED): Summarized quarterly financial data for the years ended December 31, 2016 2015 First Quarter Second Quarter Third Quarter Fourth Quarter Total For the year ended December 31, 2016 Net sales: Water Transmission $ 29,358 $ 39,775 $ 41,075 $ 39,179 $ 149,387 Tubular Products 4,570 2,286 13 - 6,869 Total $ 33,928 $ 42,061 $ 41,088 $ 39,179 $ 156,256 Gross profit (loss): Water Transmission $ (5,750 ) $ (1,272 ) $ 2,939 $ 3,767 $ (317 ) Tubular Products 313 (890 ) (816 ) (1,516 ) (2,908 ) Total $ (5,437 ) $ (2,162 ) $ 2,123 $ 2,251 $ (3,225 ) Operating income (loss): Water Transmission (1) $ (7,256 ) $ (2,648 ) $ 1,363 $ 9,590 $ 1,049 Tubular Products 104 (1,002 ) (802 ) (1,636 ) (3,336 ) Corporate (2,884 ) (2,603 ) (2,624 ) (3,135 ) (11,246 ) Total $ (10,036 ) $ (6,253 ) $ (2,063 ) $ 4,819 $ (13,533 ) Net income (loss) $ (9,583 ) $ (6,242 ) $ 727 $ 5,834 $ (9,263 ) Net earnings (loss) per share: Basic $ (1.00 ) $ (0.65 ) $ 0.08 $ 0.61 $ (0.97 ) Diluted $ (1.00 ) $ (0.65 ) $ 0.08 $ 0.60 $ (0.97 ) (1) fourth 2016 $7.9 First Quarter Second Quarter Third Quarter Fourth Quarter Total For the year ended December 31, 2015 Net sales: Water Transmission $ 56,242 $ 38,445 $ 39,792 $ 38,681 $ 173,160 Tubular Products 28,623 15,401 12,543 6,881 63,448 Total $ 84,865 $ 53,846 $ 52,335 $ 45,562 $ 236,608 Gross profit (loss): Water Transmission $ 7,519 $ 1,255 $ (725 ) $ (7,443 ) $ 606 Tubular Products (3,628 ) (3,848 ) (1,786 ) (3,969 ) (13,231 ) Total $ 3,891 $ (2,593 ) $ (2,511 ) $ (11,412 ) $ (12,625 ) Operating income (loss): Water Transmission (1) $ 5,633 $ (5,815 ) $ (2,384 ) $ (9,026 ) $ (11,592 ) Tubular Products (4,617 ) (4,254 ) (2,298 ) (4,530 ) (15,699 ) Corporate (4,099 ) (3,258 ) (2,602 ) (2,960 ) (12,919 ) Total $ (3,083 ) $ (13,327 ) $ (7,284 ) $ (16,516 ) $ (40,210 ) Net loss $ (2,101 ) $ (12,079 ) $ (1,515 ) $ (13,693 ) $ (29,388 ) Net loss per share: Basic and diluted $ (0.22 ) $ (1.26 ) $ (0.16 ) $ (1.43 ) $ (3.07 ) (1) second 2015 $5.3

Schedule II - Valuations and Qu

Schedule II - Valuations and Qualifying Accounts	12 Months Ended
	Dec. 31, 2016
Notes to Financial Statements
Schedule of Valuation and Qualifying Accounts Disclosure [Text Block]	Schedule II NORTHWEST PIPE COMPANY VALUATION AND QUALIFYING ACCOUNTS (Dollars in thousands) Balance at Beginning of Period Charged to Profit and Loss Deduction from Reserves Balance at End of Period Year ended December 31, 2016: Allowance for doubtful accounts $ 751 $ 295 $ (531 ) $ 515 Valuation allowance for deferred tax assets 7,057 1,160 - 8,217 Year ended December 31, 2015: Allowance for doubtful accounts $ 755 $ 416 $ (420 ) $ 751 Valuation allowance for deferred tax assets 1,858 5,217 (18 ) 7,057 Year ended December 31, 2014: Allowance for doubtful accounts $ 685 $ 411 $ (341 ) $ 755 Valuation allowance for deferred tax assets 1,894 26 (62 ) 1,858

Significant Accounting Policies

Significant Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2016
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. On March 30, 2014, Lucid Energy Inc. (“Lucid”), over which the Company exercises significant influence but does not control, 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, 2016 2015
Business Combinations Policy [Policy Text Block]	Disposal of OCTG Business On March 30, 2014, $42.7 $13.5 $4.4 $4.3 $5.0 $1.8 $1.8 September 2014, $29.8 April 2015, $4.3 The table below presents the operating results for the Company’s discontinued operations (in thousands). These operating results for the year ended December 31, 2014 Net sales $ 22,225 Cost of sales 23,881 Gross loss (1,656 ) Selling, general and administrative expense 396 Operating loss (2,052 ) Loss on sale of business (13,497 ) Interest expense (99 ) Loss before income taxes (15,648 ) Income tax benefit (3,934 ) Loss on discontinued operations $ (11,714 )
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 December 31, 2016 2015.
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, 2016 2015 may
Inventory, Policy [Policy Text Block]	Inventories Inventories are stated at the lower of cost or market. Raw material inventories of steel, stated at cost, are either on a specific identification basis or on an average cost basis. All other raw material inventories, as well as work-in-process and supplies, stated at cost, are on an average cost basis. Finished goods, stated at cost, use the first first
Property, Plant and Equipment, Policy [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
Goodwill and Intangible Assets, Goodwill, Policy [Policy Text Block]	Goodwill and Intangible Assets 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, 2016, In evaluating goodwill, the Company looks at the long-term prospects for the reporting unit and recognizes that current performance may 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 3 15 See Note 6,
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. As of December 31, 2016, $3.4 $0.6 $2.8
Accrued Liabilities [Policy Text Block]	Accrued Liabilities Accrued liabilities consist of the following (in thousands): December 31, 2016 2015 Accrued liabilities: Accrued vacation payable $ 2,313 $ 3,029 Reserves for expected losses on uncompleted contracts 1,409 5,933 Litigation accrual 1,750 - Accrued property taxes 1,096 1,280 Contingent consideration payable 84 1,211 Other 4,273 4,518 Total accrued liabilities $ 10,925 $ 15,971
Pension and Other Postretirement Plans, Pensions, Policy [Policy Text Block]	Pension Benefits The Company has two 2001.
Derivatives, Policy [Policy Text Block]	Derivative Instruments The Company conducts business in 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 qualify for cash flow hedge accounting treatment are remeasured at fair value at each balance sheet date and resulting gains and losses are recognized in net income (loss).
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 in the Company’s Water Transmission Group 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 Revenue from the Company’s Tubular Products Group is recognized when all four
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 was 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 12,
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 that an income tax benefit will be sustained, the largest amount of income tax benefit with a greater than 50%
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 16,
Earnings Per Share, Policy [Policy Text Block]	Loss per Share Loss per basic and diluted weighted average common shares outstanding was calculated as follows for the years ended December 31 2016 2015 2014 Loss from continuing operations $ (9,263 ) $ (29,388 ) $ (6,173 ) Loss from discontinued operations - - (11,714 ) Net loss $ (9,263 ) $ (29,388 ) $ (17,887 ) Basic weighted-average common shares outstanding 9,588 9,560 9,515 Effect of potentially dilutive common shares (1) - - - Diluted weighted-average common shares outstanding 9,588 9,560 9,515 Loss per basic and diluted common share: Continuing operations $ (0.97 ) $ (3.07 ) $ (0.65 ) Discontinued operations - - (1.23 ) Total $ (0.97 ) $ (3.07 ) $ (1.88 ) Antidilutive shares excluded from net loss per diluted common share calculation 27 52 65 (1) Represents the effect of the assumed exercise of stock options and the vesting of restricted stock units and performance share awards, based on the treasury stock method.
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, 2016, two 10% December 31, 2015, 10%
New Accounting Pronouncements, Policy [Policy Text Block]	Recent Accounting and Reporting Developments Accounting Changes In August 2014, 2014 15, 205 40): 2014 15”). 2014 15 one December 31, 2016 In May 2015, 2015 07, 820): 2015 07”). 2015 07 January 1, 2016 Recent Accounting Standards In May 2014, 2014 09, 606)” 2014 09”) 2014 09 January 1, 2018, 2018, March 2016, 2016 08, 606): April 2016, 2016 10, 606): May 2016, 2016 11, 606) 815)–Rescission 2014 09 2014 16” 2016 12, 606): December 2016, 2016 20, 606, five 2014 09, 2014 09.The 2014 09. In July 2015, 2015 11, 330): 2015 11”). 2015 11, January 1, 2017. In January 2016, 2016 01, 825 10): 2016 01”). 2016 01 January 1, 2018. In February 2016, 2016 02, 842)” 2016 02”). 2016 02 12 January 1, 2019, In March 2016, 2016 09, 718): 2016 09”). 2016 09 December 15, 2016, In August 2016, 2016 15, 230): 2016 15”). 2016 15 eight December 15, 2017,

Note 2 - Summary of Significa32

Note 2 - Summary of Significant Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Disposal Groups, Including Discontinued Operations [Table Text Block]	Net sales $ 22,225 Cost of sales 23,881 Gross loss (1,656 ) Selling, general and administrative expense 396 Operating loss (2,052 ) Loss on sale of business (13,497 ) Interest expense (99 ) Loss before income taxes (15,648 ) Income tax benefit (3,934 ) Loss on discontinued operations $ (11,714 )
Schedule of Accrued Liabilities [Table Text Block]	December 31, 2016 2015 Accrued liabilities: Accrued vacation payable $ 2,313 $ 3,029 Reserves for expected losses on uncompleted contracts 1,409 5,933 Litigation accrual 1,750 - Accrued property taxes 1,096 1,280 Contingent consideration payable 84 1,211 Other 4,273 4,518 Total accrued liabilities $ 10,925 $ 15,971
Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]	2016 2015 2014 Loss from continuing operations $ (9,263 ) $ (29,388 ) $ (6,173 ) Loss from discontinued operations - - (11,714 ) Net loss $ (9,263 ) $ (29,388 ) $ (17,887 ) Basic weighted-average common shares outstanding 9,588 9,560 9,515 Effect of potentially dilutive common shares (1) - - - Diluted weighted-average common shares outstanding 9,588 9,560 9,515 Loss per basic and diluted common share: Continuing operations $ (0.97 ) $ (3.07 ) $ (0.65 ) Discontinued operations - - (1.23 ) Total $ (0.97 ) $ (3.07 ) $ (1.88 ) Antidilutive shares excluded from net loss per diluted common share calculation 27 52 65

Note 3 - Cost and Estimated E33

Note 3 - 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, 2016
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, 2016 2015 (in thousands) Costs incurred on uncompleted contracts $ 238,050 $ 210,716 Estimated earnings 7,247 31,921 245,297 242,637 Less billings to date (203,672 ) (200,565 ) $ 41,625 $ 42,072 Amounts are presented in the Consolidated Balance Sheets as follows: Costs and estimated earnings in excess of billings on uncompleted contracts $ 43,663 $ 42,592 Billings in excess of costs and estimated earnings on uncompleted contracts (2,038 ) (520 ) $ 41,625 $ 42,072

Note 4 - Inventories (Tables)

Note 4 - Inventories (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Schedule Of Inventory Current And Non Current [Table Text Block]	December 31, 2016 2015 Short-term inventories: Raw materials $ 15,411 $ 21,486 Work-in-process 1,235 1,901 Finished goods 40 3,641 Supplies 2,351 2,447 Total short-term inventories 19,037 29,475 Long-term inventories: Finished goods 773 823 Total inventories $ 19,810 $ 30,298

Note 5 - Property and Equipme35

Note 5 - Property and Equipment (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Property, Plant and Equipment [Table Text Block]	December 31, 2016 2015 Land and improvements $ 22,288 $ 23,903 Buildings 38,922 44,409 Machinery and equipment 139,189 146,704 Equipment under capital lease 1,126 924 Construction in progress 2,180 2,359 203,705 218,299 Less accumulated depreciation and amortization (85,604 ) (86,451 ) Property and equipment, net $ 118,101 $ 131,848

Note 6 - Goodwill and Intangi36

Note 6 - Goodwill and Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Schedule of Intangible Assets and Goodwill [Table Text Block]	Gross Carrying Accumulated Intangible Amount Amortization Assets, Net As of December 31, 2016 Customer relationships $ 1,378 $ (413 ) $ 965 Patents 1,162 (697 ) 465 Trade names and trademarks 1,132 (226 ) 906 Other (1) 295 (233 ) 62 Total $ 3,967 $ (1,569 ) $ 2,398 As of December 31, 2015 Customer relationships $ 1,378 $ (275 ) $ 1,103 Patents 1,162 (465 ) 697 Trade names and trademarks 1,132 (151 ) 981 Other (1) 295 (155 ) 140 Total $ 3,967 $ (1,046 ) $ 2,921
Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block]	Year ending December 31, 2017 $ 495 2018 459 2019 213 2020 213 2021 213 Thereafter 805 $ 2,398

Note 8 - Leases (Tables)

Note 8 - Leases (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Schedule of Future Minimum Lease Payments for Capital Leases [Table Text Block]	2017 $ 358 2018 257 2019 230 2020 134 2021 18 Total minimum lease payments 997 Amount representing interest (70 ) Present value of minimum lease payments 927 Current portion of capital lease obligation 325 Capital lease obligation, less current portion $ 602
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]	2017 $ 2,427 2018 1,313 2019 897 2020 794 2021 489 Thereafter 1,345 $ 7,265

Note 9 - Fair Value Measureme38

Note 9 - Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]	As of December 31, 2016 Total Level 1 Level 2 Level 3 Financial assets: Deferred compensation plan $ 6,209 $ 5,215 $ 994 $ - Derivatives 58 - 58 - Total assets $ 6,267 $ 5,215 $ 1,052 $ - Financial liabilities: Derivatives $ (8 ) $ - $ (8 ) $ - As of December 31, 2015 Total Level 1 Level 2 Level 3 Financial assets: Deferred compensation plan $ 6,357 $ 5,075 $ 1,282 $ - Derivatives 296 - 296 - Total assets $ 6,653 $ 5,075 $ 1,578 $ - Financial liabilities: Contingent consideration $ (2,974 ) $ - $ - $ (2,974 )

Note 12 - Share-based Compens39

Note 12 - Share-based Compensation (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Schedule of Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Table Text Block]	Year ended December 31, 2016 2015 2014 Cost of sales $ 422 $ 412 $ 337 Selling, general and administrative expense 1,379 1,362 2,609 Total $ 1,801 $ 1,774 $ 2,946
Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]	Options Weighted Average Exercise Price Weighted Average Remaining Contractual Life Aggregate Intrinsic Value (in years) (in thousands) Balance, December 31, 2015 28,000 $ 25.21 Options granted - - Options exercised - - Options canceled (2,000 ) 28.31 Balance, December 31, 2016 26,000 24.97 Exercisable, December 31, 2016 26,000 24.97 3.03 $ -
Schedule of Share-based Payment Award, Employee Stock Purchase Plan, Valuation Assumptions [Table Text Block]	Expected stock price volatility 23.7% - 65.0% Risk free interest rate 0.61% Expected dividend yield 0%
Schedule of Unvested Restricted Stock Units Roll Forward [Table Text Block]	Number of RSUs and PSAs (1) Weighted Average Grant Date Fair Value Unvested RSUs and PSAs at December 31, 2015 127,852 $ 38.87 RSUs and PSAs granted 169,583 9.50 Unvested RSUs and PSAs canceled (63,432 ) 36.96 RSUs and PSAs vested (12,212 ) 31.50 Unvested RSUs and PSAs at December 31, 2016 221,791 $ 17.36

Note 15 - Income Taxes (Tables)

Note 15 - Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]	Year Ended December 31, 2016 2015 2014 Current: Federal $ (740 ) $ (5,076 ) $ 4,336 State (102 ) 26 334 Total current income tax expense (benefit) (842 ) (5,050 ) 4,670 Deferred: Federal (3,541 ) (8,855 ) 305 State (373 ) 1,954 (324 ) Total deferred income tax benefit (3,914 ) (6,901 ) (19 ) $ (4,756 ) $ (11,951 ) $ 4,651
Schedule of Effective Income Tax Rate Reconciliation [Table Text Block]	Year Ended December 31, 2016 2015 2014 Income tax benefit at federal statutory rate of 35% $ (4,907 ) $ (14,470 ) $ (532 ) State benefit, net of federal income tax effect (362 ) (866 ) (96 ) Federal and state income tax credits (154 ) (6,684 ) (91 ) Disallowed domestic manufacturing deduction - 630 - Change in valuation allowance 1,155 5,210 9 Uncertain income tax positions (4 ) 2,082 5 Goodwill impairment (nondeductible) - 1,849 5,623 Nondeductible expenses 63 91 207 Nontaxable adjustment to contingent consideration (580 ) 103 (611 ) Other 33 104 137 Income tax expense (benefit) $ (4,756 ) $ (11,951 ) $ 4,651 Effective income tax rate (33.9 ) % (28.9 ) % 305.6 %
Schedule of Deferred Tax Assets and Liabilities [Table Text Block]	December 31, 2016 2015 Deferred income tax assets: Costs and estimated earnings in excess of billings on uncompleted contracts, net $ 1,270 $ 2,888 Accrued employee benefits 5,025 5,946 Inventories 563 2,618 Trade receivable, net 199 266 Net operating loss carryforwards 15,637 7,843 Tax credit carryforwards 5,069 4,791 Other assets 1,830 2,737 Other 1,018 520 30,611 27,609 Valuation allowance (8,217 ) (7,057 ) 22,394 20,552 Deferred income tax liabilities: Property and equipment (22,380 ) (24,229 ) Intangible assets (819 ) (980 ) Prepaid expenses (477 ) (467 ) (23,676 ) (25,676 ) Net deferred income tax liabilities $ (1,282 ) $ (5,124 )
Schedule of Unrecognized Tax Benefits Roll Forward [Table Text Block]	Year Ended December 31, 2016 2015 2014 Unrecognized income tax benefits, beginning of year $ 4,874 $ 2,313 $ 6,207 Decreases for settlements - - (3,265 ) Decreases for lapse in statute of limitations - (1,199 ) (115 ) Decreases for positions taken in current year - - (615 ) Increases for positions taken in prior years - 3,716 101 Increases for positions taken in the current year - 44 - Unrecognized income tax benefits, end of year $ 4,874 $ 4,874 $ 2,313

Note 16 - Accumulated Other C41

Note 16 - Accumulated Other Comprehensive Loss (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block]	December 31, 2016 2015 Pension liability adjustment, net of income tax benefit of $886 and $966 $ (1,493 ) $ (1,624 ) Deferred gain on cash flow derivatives, net of income tax expense of $6 and $49 10 86 Total $ (1,483 ) $ (1,538 )
Schedule of Changes in Accumulated Other Comprehensive Income Loss [Table Text Block]	Defined Benefit Pension Items Gains (Losses) on Cash Flow Hedges Total Balance, December 31, 2014 $ (1,862 ) $ 29 $ (1,833 ) Other comprehensive income before reclassifications 17 150 167 Amounts reclassified from Accumulated other comprehensive loss 221 (93 ) 128 Net current period adjustments to Other comprehensive income (loss) 238 57 295 Balance, December 31, 2015 (1,624 ) 86 (1,538 ) Other comprehensive loss before reclassifications (125 ) (48 ) (173 ) Amounts reclassified from Accumulated other comprehensive loss 256 (28 ) 228 Net current period adjustments to Other comprehensive income (loss) 131 (76 ) 55 Balance, December 31, 2016 $ (1,493 ) $ 10 $ (1,483 )
Reclassification out of Accumulated Other Comprehensive Income [Table Text Block]	Year Ended December 31, 2016 2015 2014 Details about Accumulated Other Comprehensive Income (Loss) Components Amount reclassified from Accumulated Other Comprehensive Loss Affected line item in the Consolidated Statements of Operations Defined benefit pension items: Net periodic pension cost $ (392 ) $ (352 ) $ (182 ) Cost of sales Associated income tax benefit 136 131 68 Income tax expense (256 ) (221 ) (114 ) Net of tax Deferred gain on cash flow derivatives: Gain on cash flow derivatives 45 147 6 Net sales Hedge ineffectiveness - 2 (3 ) Net sales Associated income tax expense (17 ) (56 ) (1 ) Income tax expense 28 93 2 Net of tax Total reclassifications for the period $ (228 ) $ (128 ) $ (112 )

Note 17 - Segment Information (

Note 17 - Segment Information (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Schedule Of Segment Reporting Information By Segment Statement Of Operations [Table Text Block]	Year Ended December 31, 2016 2015 2014 (in thousands) Net sales from continuing operations: Water Transmission $ 149,387 $ 173,160 $ 238,545 Tubular Products 6,869 63,448 164,753 Total $ 156,256 $ 236,608 $ 403,298 Gross profit (loss) from continuing operations: Water Transmission $ (317 ) $ 606 $ 39,601 Tubular Products (2,908 ) (13,231 ) 975 Total $ (3,225 ) $ (12,625 ) $ 40,576 Operating income (loss) from continuing operations: Water Transmission (1) $ 1,049 $ (11,592 ) $ 31,490 Tubular Products (2) (3,336 ) (15,699 ) (16,677 ) (2,287 ) (27,291 ) 14,813 Corporate (11,246 ) (12,919 ) (14,619 ) Total $ (13,533 ) $ (40,210 ) $ 194 Net sales from continuing operations by geographic region: United States $ 144,280 $ 224,691 $ 383,344 Canada 11,976 11,917 19,954 Total $ 156,256 $ 236,608 $ 403,298 Year Ended December 31, 2016 2015 2014 (in thousands) Depreciation and amortization expense: Water Transmission $ 8,750 $ 7,318 $ 8,716 Tubular Products 776 1,859 5,090 9,526 9,177 13,806 Corporate 443 438 340 Total $ 9,969 $ 9,615 $ 14,146 Capital expenditures: Water Transmission $ 2,072 $ 6,313 $ 6,190 Tubular Products - 1,879 7,526 2,072 8,192 13,716 Corporate 220 323 573 Total $ 2,292 $ 8,515 $ 14,289
Schedule of Segment Reporting Information By Segment Balance Sheets [Table Text Block]	December 31, 2016 2015 (in thousands) Total assets: Water Transmission $ 170,486 $ 185,607 Tubular Products 40,402 48,785 210,888 234,392 Corporate 30,667 24,988 Total $ 241,555 $ 259,380

Note 20 - Quarterly Data (Una43

Note 20 - Quarterly Data (Unaudited) (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Quarterly Financial Information [Table Text Block]	First Quarter Second Quarter Third Quarter Fourth Quarter Total For the year ended December 31, 2016 Net sales: Water Transmission $ 29,358 $ 39,775 $ 41,075 $ 39,179 $ 149,387 Tubular Products 4,570 2,286 13 - 6,869 Total $ 33,928 $ 42,061 $ 41,088 $ 39,179 $ 156,256 Gross profit (loss): Water Transmission $ (5,750 ) $ (1,272 ) $ 2,939 $ 3,767 $ (317 ) Tubular Products 313 (890 ) (816 ) (1,516 ) (2,908 ) Total $ (5,437 ) $ (2,162 ) $ 2,123 $ 2,251 $ (3,225 ) Operating income (loss): Water Transmission (1) $ (7,256 ) $ (2,648 ) $ 1,363 $ 9,590 $ 1,049 Tubular Products 104 (1,002 ) (802 ) (1,636 ) (3,336 ) Corporate (2,884 ) (2,603 ) (2,624 ) (3,135 ) (11,246 ) Total $ (10,036 ) $ (6,253 ) $ (2,063 ) $ 4,819 $ (13,533 ) Net income (loss) $ (9,583 ) $ (6,242 ) $ 727 $ 5,834 $ (9,263 ) Net earnings (loss) per share: Basic $ (1.00 ) $ (0.65 ) $ 0.08 $ 0.61 $ (0.97 ) Diluted $ (1.00 ) $ (0.65 ) $ 0.08 $ 0.60 $ (0.97 ) First Quarter Second Quarter Third Quarter Fourth Quarter Total For the year ended December 31, 2015 Net sales: Water Transmission $ 56,242 $ 38,445 $ 39,792 $ 38,681 $ 173,160 Tubular Products 28,623 15,401 12,543 6,881 63,448 Total $ 84,865 $ 53,846 $ 52,335 $ 45,562 $ 236,608 Gross profit (loss): Water Transmission $ 7,519 $ 1,255 $ (725 ) $ (7,443 ) $ 606 Tubular Products (3,628 ) (3,848 ) (1,786 ) (3,969 ) (13,231 ) Total $ 3,891 $ (2,593 ) $ (2,511 ) $ (11,412 ) $ (12,625 ) Operating income (loss): Water Transmission (1) $ 5,633 $ (5,815 ) $ (2,384 ) $ (9,026 ) $ (11,592 ) Tubular Products (4,617 ) (4,254 ) (2,298 ) (4,530 ) (15,699 ) Corporate (4,099 ) (3,258 ) (2,602 ) (2,960 ) (12,919 ) Total $ (3,083 ) $ (13,327 ) $ (7,284 ) $ (16,516 ) $ (40,210 ) Net loss $ (2,101 ) $ (12,079 ) $ (1,515 ) $ (13,693 ) $ (29,388 ) Net loss per share: Basic and diluted $ (0.22 ) $ (1.26 ) $ (0.16 ) $ (1.43 ) $ (3.07 )

Schedule II - Valuations and 44

Schedule II - Valuations and Qualifying Accounts (Tables)	12 Months Ended
	Dec. 31, 2016
Notes Tables
Summary of Valuation and Qualifying Accounts [Table Text Block]	Balance at Beginning of Period Charged to Profit and Loss Deduction from Reserves Balance at End of Period Year ended December 31, 2016: Allowance for doubtful accounts $ 751 $ 295 $ (531 ) $ 515 Valuation allowance for deferred tax assets 7,057 1,160 - 8,217 Year ended December 31, 2015: Allowance for doubtful accounts $ 755 $ 416 $ (420 ) $ 751 Valuation allowance for deferred tax assets 1,858 5,217 (18 ) 7,057 Year ended December 31, 2014: Allowance for doubtful accounts $ 685 $ 411 $ (341 ) $ 755 Valuation allowance for deferred tax assets 1,894 26 (62 ) 1,858

Note 1 - Organization (Details

Note 1 - Organization (Details Textual)	12 Months Ended
	Dec. 31, 2016
Number of Reportable Segments	2

Note 2 - Summary of Significa46

Note 2 - Summary of Significant Accounting Policies (Details Textual)	Mar. 30, 2014USD ($)	Apr. 30, 2015USD ($)	Sep. 30, 2014USD ($)	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)
Investments				$ 0	$ 0
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax						$ (13,497,000)
Proceeds from Divestiture of Businesses					4,300,000	29,791,000
Book Overdrafts				0	$ 0
Workers' Compensation Liability				$ 3,400,000
Number of Customers with Receivable Balance in Excess of Ten Percent of Receivables				2	0
Accrued Liability [Member]
Workers' Compensation Liability, Current				$ 600,000
Other Long-term Liabilities [Member]
Workers' Compensation Liability, Noncurrent				$ 2,800,000
Minimum [Member]
Finite-Lived Intangible Asset, Useful Life				3 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
Disposal of OCTG Business [Member]
Proceeds from Sale of Productive Assets	$ 42,700,000
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax	13,500,000		$ 1,800,000
Goodwill, Written off Related to Sale of Business Unit						4,400,000
Business Acquisition Purchase Price Amount Held In Escrow To Secure Indemnification Obligations	4,300,000
Repayments of Debt and Capital Lease Obligations	5,000,000
Business Acquisition, Transaction Costs	$ 1,800,000
Proceeds from Divestiture of Businesses						$ 29,800,000
Escrow Deposit Released		$ 4,300,000

Note 2 - Summary of Significa47

Note 2 - Summary of Significant Accounting Policies - Summary of Operating Results for Company's Discontinued Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Net sales			$ 22,225
Cost of sales			23,881
Gross loss			(1,656)
Selling, general and administrative expense			396
Operating loss			(2,052)
Discontinued Operation, Gain (Loss) from Disposal of Discontinued Operation, before Income Tax			(13,497)
Interest expense			(99)
Loss before income taxes			(15,648)
Income tax benefit			(3,934)
Loss on discontinued operations			$ (11,714)

Note 2 - Summary of Significa48

Note 2 - Summary of Significant Accounting Policies - Summary of Accrued Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Accrued vacation payable	$ 2,313	$ 3,029
Reserves for expected losses on uncompleted contracts	1,409	5,933
Estimated Litigation Liability, Current	1,750
Accrued property taxes	1,096	1,280
Contingent consideration payable	84	1,211
Other	4,273	4,518
Total accrued liabilities	$ 10,925	$ 15,971

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, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Loss from continuing operations										$ (9,263)	$ (29,388)	$ (6,173)
Loss from discontinued operations												(11,714)
Net loss		$ 5,834	$ 727	$ (6,242)	$ (9,583)	$ (13,693)	$ (1,515)	$ (12,079)	$ (2,101)	$ (9,263)	$ (29,388)	$ (17,887)
Basic weighted-average common shares outstanding (in shares)										9,588	9,560	9,515
Effect of potentially dilutive common shares(1) (in shares)	[1]
Diluted weighted-average common shares outstanding (in shares)										9,588	9,560	9,515
Continuing operations (in dollars per share)										$ (0.97)	$ (3.07)	$ (0.65)
Discontinued operations (in dollars per share)												(1.23)
Total (in dollars per share)						$ (1.43)	$ (0.16)	$ (1.26)	$ (0.22)	$ (0.97)	$ (3.07)	$ (1.88)
Antidilutive shares excluded from net loss per diluted common share calculation (in shares)										27	52	65
[1]	Represents the effect of the assumed exercise of stock options and the vesting of restricted stock units and performance stock awards, based on the treasury stock method.

Note 3 - Costs and Estimated Ea

Note 3 - 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, 2016	Dec. 31, 2015
Costs incurred on uncompleted contracts	$ 238,050	$ 210,716
Estimated earnings	7,247	31,921
Sum of costs incurred and estimated earnings on uncompleted contracts	245,297	242,637
Less billings to date	(203,672)	(200,565)
Costs and estimated earnings in excess of billings on uncompleted contracts	41,625	42,072
Costs and estimated earnings in excess of billings on uncompleted contracts	43,663	42,592
Billings in excess of costs and estimated earnings on uncompleted contracts	(2,038)	(520)
Costs and estimated earnings in excess of billings on uncompleted contracts	$ 41,625	$ 42,072

Note 4 - Inventories - Componen

Note 4 - Inventories - Components of Inventories (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Raw materials	$ 15,411	$ 21,486
Work-in-process	1,235	1,901
Finished goods	40	3,641
Supplies	2,351	2,447
Total short-term inventories	19,037	29,475
Finished goods	773	823
Total inventories	$ 19,810	$ 30,298

Note 5 - Property and Equipme52

Note 5 - Property and Equipment (Details Textual) - USD ($) $ in Thousands	Oct. 04, 2016	Dec. 31, 2016	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Capital Leases, Lessee Balance Sheet, Assets by Major Class, Accumulated Depreciation		$ 600	$ 600	$ 300
Denver Facility [Member]
Proceeds from Sale of Property, Plant, and Equipment	$ 13,900		13,914
Gain (Loss) on Disposition of Property Plant Equipment		$ 7,900	$ 7,860

Note 5 - Property and Equipme53

Note 5 - Property and Equipment - Property, Plant and Equipment (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Property and equipment, gross	$ 203,705	$ 218,299
Less accumulated depreciation and amortization	(85,604)	(86,451)
Property and equipment, net	118,101	131,848
Land Improvements [Member]
Property and equipment, gross	22,288	23,903
Building [Member]
Property and equipment, gross	38,922	44,409
Machinery and Equipment [Member]
Property and equipment, gross	139,189	146,704
Assets Held under Capital Leases [Member]
Property and equipment, gross	1,126	924
Construction in Progress [Member]
Property and equipment, gross	$ 2,180	$ 2,359

Note 6 - Goodwill and Intangi54

Note 6 - Goodwill and Intangible Assets (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Mar. 31, 2015
Amortization of Intangible Assets	$ 523,000	$ 523,000	$ 540,000
Disposal of OCTG Business [Member]
Goodwill, Written off Related to Sale of Business Unit			4,400,000
Water Transmission Group [Member]
Goodwill				$ 5,300,000
Tubular Products [Member]
Goodwill			$ 16,100,000

Note 6 - Goodwill and Intangi55

Note 6 - Goodwill and Intangible Assets - Summary of Intangible Assets (Details) - USD ($) $ in Thousands		Dec. 31, 2016	Dec. 31, 2015
Gross Carrying Amount		$ 3,967	$ 3,967
Accumulated Amortization		(1,569)	(1,046)
Intangible Assets, Net		2,398	2,921
Customer Relationships [Member]
Gross Carrying Amount		1,378	1,378
Accumulated Amortization		(413)	(275)
Intangible Assets, Net		965	1,103
Patents [Member]
Gross Carrying Amount		1,162	1,162
Accumulated Amortization		(697)	(465)
Intangible Assets, Net		465	697
Trademarks and Trade Names [Member]
Gross Carrying Amount		1,132	1,132
Accumulated Amortization		(226)	(151)
Intangible Assets, Net		906	981
Other Intangible Assets [Member]
Gross Carrying Amount	[1]	295	295
Accumulated Amortization	[1]	(233)	(155)
Intangible Assets, Net	[1]	$ 62	$ 140
[1]	Other intangibles consist of favorable lease contracts and non-compete agreements.

Note 6 - Goodwill and Intangi56

Note 6 - Goodwill and Intangible Assets - Summary of Estimated Amortization Expense (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
2,017	$ 495
2,018	459
2,019	213
2,020	213
2,021	213
Thereafter	805
Total	$ 2,398	$ 2,921

Note 7 - Line of Credit (Detail

Note 7 - Line of Credit (Details Textual) - USD ($) $ in Thousands	Oct. 26, 2015	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Line of Credit Facility, Maximum Borrowing Capacity	$ 60,000
Interest Expense, Debt		$ 400	$ 500	$ 1,400	$ 2,300
Interest Costs Capitalized			0	100	$ 200
2015 Credit Agreement [Member]
Line of Credit Facility, Maximum Borrowing Capacity			13,000
Long-term Line of Credit		$ 0	$ 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 8 - Leases (Details Textua

Note 8 - Leases (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Capital Lease Obligations	$ 900
Capita Llease Weighted Average Interest Rate	4.55%
Disposal Group, Including Discontinued Operation, Interest Expense			$ 99
Maximum Duration of Operating Leases	10 years
Operating Leases, Rent Expense, Net	$ 3,000	$ 3,200	$ 3,200

Note 8 - Leases - Schedule of F

Note 8 - Leases - Schedule of Future Minimum Lease Payments for Capital Leases (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
2,017	$ 358
2,018	257
2,019	230
2,020	134
2,021	18
Total minimum lease payments	997
Amount representing interest	(70)
Present value of minimum lease payments	927
Current portion of capital lease obligation	325	$ 340
Capital lease obligation, less current portion	$ 602	$ 718

Note 8 - Leases - Schedule of60

Note 8 - Leases - Schedule of Future Minimum Lease Payments for Operating Leases (Details) $ in Thousands	Dec. 31, 2016USD ($)
2,017	$ 2,427
2,018	1,313
2,019	897
2,020	794
2,021	489
Thereafter	1,345
Total	$ 7,265

Note 9 - Fair Value Measureme61

Note 9 - Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Deferred compensation plan	$ 6,209	$ 6,357
Derivatives, assets	58	296
Total assets	6,267	6,653
Derivatives, liabilities	(8)
Financial assets:
Deferred compensation plan	6,209	6,357
Derivatives, assets	58	296
Total assets	6,267	6,653
Financial liabilities:
Contingent consideration		(2,974)
Fair Value, Inputs, Level 1 [Member]
Deferred compensation plan	5,215	5,075
Derivatives, assets
Total assets	5,215	5,075
Derivatives, liabilities
Financial assets:
Deferred compensation plan	5,215	5,075
Derivatives, assets
Total assets	5,215	5,075
Financial liabilities:
Contingent consideration
Fair Value, Inputs, Level 2 [Member]
Deferred compensation plan	994	1,282
Derivatives, assets	58	296
Total assets	1,052	1,578
Derivatives, liabilities	(8)
Financial assets:
Deferred compensation plan	994	1,282
Derivatives, assets	58	296
Total assets	1,052	1,578
Financial liabilities:
Contingent consideration
Fair Value, Inputs, Level 3 [Member]
Deferred compensation plan
Derivatives, assets
Total assets
Derivatives, liabilities
Financial assets:
Deferred compensation plan
Derivatives, assets
Total assets
Financial liabilities:
Contingent consideration		$ (2,974)

Note 10 - Derivative Instrume62

Note 10 - Derivative Instruments and Hedging Activities (Details Textual) CAD in Millions	12 Months Ended
	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)	Dec. 31, 2016CAD	Dec. 31, 2015CAD
Derivative Instruments Not Designated as Hedging Instruments, Gain (Loss), Net	$ 0	$ 400,000	$ 100,000
Foreign Currency Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months	$ 0	100,000
Maximum [Member]
Maturity Period For Forward Contracts	1 year
Not Designated as Hedging Instrument [Member]
Derivative, Notional Amount	$ 900,000	0		CAD 1.3
Designated as Hedging Instrument [Member]
Derivative, Notional Amount	$ 3,400,000	$ 6,300,000		CAD 4.5	CAD 8.7

Note 11 - Retirement Plans (Det

Note 11 - Retirement Plans (Details Textual)	12 Months Ended
	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Dec. 31, 2014USD ($)
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
Pension and Other Postretirement Defined Benefit Plans, Liabilities	$ 1,900,000	$ 1,900,000
Accumulated Other Comprehensive Income Loss Unrecognized Net Actuarial Losses Net of Tax	1,500,000	1,600,000
Defined Benefit Plan, Accumulated Benefit Obligation	6,500,000	6,400,000
Defined Benefit Plan, Fair Value of Plan Assets	4,600,000	4,500,000
Defined Benefit Plan, Net Periodic Benefit Cost	$ 400,000	$ 400,000	$ 200,000
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	3.74%	3.91%
Defined Benefit Plan, Assumptions Used Calculating Net Periodic Benefit Cost, Expected Long-term Return on 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	$ 6,400,000
Retirement Plan Expense	$ 1,400,000	$ 1,500,000	$ 1,800,000

Note 12 - Share-based Compens64

Note 12 - Share-based Compensation (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2016		Dec. 31, 2015	Dec. 31, 2014
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	557,098
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value	$ 0		$ 0	$ 0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period	0
Restricted Stock Units and Performance Share Award Target Level, Percentage	100.00%
Minimum Performance Awards Issued Multiplier	0.00%
Maximum Performance Awards Issued Multiplier	200.00%
Director [Member]
Share-based Goods and Nonemployee Services Transaction, Quantity of Securities Issued	27,640		10,464	9,150
Share Based Compensation Arrangement by Stock Based Payment Award Grant Date Fair Value	$ 9.95		$ 21.02
Director [Member] | Minimum [Member]
Share Based Compensation Arrangement by Stock Based Payment Award Grant Date Fair Value				$ 36
Director [Member] | Maximum [Member]
Share Based Compensation Arrangement by Stock Based Payment Award Grant Date Fair Value				36.41
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
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period	3 years
Restricted Stock Units and Performance Stock Awards [Member]
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options	$ 1,000,000
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition	1 year
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, Weighted Average Grant Date Fair Value	$ 9.50		$ 0	$ 41.76
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period	169,583	[1]	0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Fair Value	$ 100,000		$ 1,600,000	$ 3,500,000
[1]	The number of shares disclosed in this table are at the target level of 100%.

Note 12 - Share-based Compens65

Note 12 - Share-based Compensation - Summary of Share-based Compensation Expense (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Allocated share-based compensation expense	$ 1,801	$ 1,774	$ 2,946
Cost of Sales [Member]
Allocated share-based compensation expense	422	412	337
Selling, General and Administrative Expenses [Member]
Allocated share-based compensation expense	$ 1,379	$ 1,362	$ 2,609

Note 12 - Share-based Compens66

Note 12 - Share-based Compensation - Summary of Status of Company's Stock Options (Details)	12 Months Ended
	Dec. 31, 2016$ / sharesshares
Balance (in shares)	28,000
Balance (in dollars per share) | $ / shares	$ 25.21
Options granted (in shares)
Options exercised (in shares)	0
Options canceled (in shares)	(2,000)
Options canceled (in dollars per share) | $ / shares	$ 28.31
Balance (in shares)	26,000
Balance (in dollars per share) | $ / shares	$ 24.97
Balance (Year)
Exercisable, December 31, 2016 (in shares)	26,000
Exercisable, December 31, 2016 (in dollars per share) | $ / shares	$ 24.97
Exercisable, December 31, 2016 (Year)	3 years 10 days

Note 12 - Share-based Compens67

Note 12 - Share-based Compensation - Summary of Estimated Fair Value Assumptions on Date of Grant (Details)	12 Months Ended
	Dec. 31, 2014
Expected stock price volatility
Risk free interest rate	0.61%
Expected dividend yield	0.00%
Minimum [Member]
Expected stock price volatility	23.70%
Risk free interest rate	0.61%
Expected dividend yield	0.00%
Maximum [Member]
Expected stock price volatility	65.00%
Risk free interest rate	0.61%
Expected dividend yield	0.00%

Note 12 - Share-based Compens68

Note 12 - Share-based Compensation - Summary of Status of Company's RSUs and PSAs (Details) - Restricted Stock Units and Performance Stock Awards [Member] - $ / shares		12 Months Ended
		Dec. 31, 2016		Dec. 31, 2015	Dec. 31, 2014
Unvested RSUs and PSAs (in shares)	[1]	127,852
Unvested RSUs and PSAs (in dollars per share)		$ 38.87
RSUs and PSAs granted (in shares)		169,583	[1]	0
RSUs and PSAs granted (in dollars per share)		$ 9.50		$ 0	$ 41.76
Unvested RSUs and PSAs canceled (in shares)	[1]	(63,432)
Unvested RSUs and PSAs canceled (in dollars per share)		$ 36.96
RSUs and PSAs vested (in shares)	[1]	(12,212)
RSUs and PSAs vested (in dollars per share)		$ 31.50
Unvested RSUs and PSAs (in shares)	[1]	221,791		127,852
Unvested RSUs and PSAs (in dollars per share)		$ 17.36		$ 38.87
[1]	The number of shares disclosed in this table are at the target level of 100%.

Note 13 - Shareholder Rights 69

Note 13 - Shareholder Rights Plan (Details Textual) - $ / shares	Jun. 18, 2009	Dec. 31, 2016
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

Note 14 - Commitments and Con70

Note 14 - Commitments and Contingencies (Details Textual) $ in Thousands	1 Months Ended		12 Months Ended
	Jan. 31, 2015USD ($)	Jul. 31, 2014USD ($)	Dec. 31, 2016USD ($)	Dec. 31, 2015USD ($)	Jun. 30, 2014USD ($)
Estimated Cost of EPA Selected Remedy			$ 1,050,000
Estimated Time to Complete Selected EPA Remedy			13 years
Number Of Potentially Responsible Parties			100
Insurance Recoveries	$ 2,600
Estimated Litigation Liability, Current			$ 1,750
Letters of Credit Outstanding, Amount			2,000
Pending Litigation [Member]
Estimated Litigation Liability, Current			1,800
Portland Harbor Natural Resources Trustee Council [Member]
Loss Contingency, Accrual, Current					$ 400
Loss Contingency Accrual, Payments		$ 200
Voluntary Cleanup Program [Member] | Estimated [Member]
Accrual for Environmental Loss Contingencies			200
Voluntary Cleanup Program [Member] | Minimum [Member]
Loss Contingency, Estimate of Possible Loss			100
Voluntary Cleanup Program [Member] | Maximum [Member]
Loss Contingency, Estimate of Possible Loss			$ 1,700

Note 15 - Income Taxes (Details

Note 15 - Income Taxes (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	35.00%		35.00%
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	$ 100	$ 100
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	0	$ 100	$ 100
Domestic Tax Authority [Member]
Operating Loss Carryforwards	40,000
Tax Credit Carryforward, Amount	3,300
State and Local Jurisdiction [Member]
Operating Loss Carryforwards	46,900
Tax Credit Carryforward, Amount	$ 4,200

Note 15 - Income Taxes - Summar

Note 15 - Income Taxes - Summary of Components of Income Tax Expense for Continuing Operations (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Current:
Federal	$ (740)	$ (5,076)	$ 4,336
State	(102)	26	334
Total current income tax expense (benefit)	(842)	(5,050)	4,670
Deferred:
Federal	(3,541)	(8,855)	305
State	(373)	1,954	(324)
Total deferred income tax benefit	(3,914)	(6,901)	(19)
Income tax expense (benefit)	$ (4,756)	$ (11,951)	$ 4,651

Note 15 - Income Taxes - Effect

Note 15 - Income Taxes - Effective Income Tax Rate Reconciliation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income tax benefit at federal statutory rate of 35%	$ (4,907)	$ (14,470)	$ (532)
State benefit, net of federal income tax effect	(362)	(866)	(96)
Federal and state income tax credits	(154)	(6,684)	(91)
Disallowed domestic manufacturing deduction		630
Change in valuation allowance	1,155	5,210	9
Uncertain income tax positions	(4)	2,082	5
Goodwill impairment (nondeductible)		1,849	5,623
Nondeductible expenses	63	91	207
Nontaxable adjustment to contingent consideration	(580)	103	(611)
Other	33	104	137
Income tax expense (benefit)	$ (4,756)	$ (11,951)	$ 4,651
Effective income tax rate	(33.90%)	(28.90%)	305.60%

Note 15 - Income Taxes - Effe74

Note 15 - Income Taxes - Effective Income Tax Rate Reconciliation (Details) (Parentheticals)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2014
Statutory rate	35.00%	35.00%

Note 15 - Income Taxes - Summ75

Note 15 - Income Taxes - Summary of Current and Noncurrent Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Costs and estimated earnings in excess of billings on uncompleted contracts, net	$ 1,270	$ 2,888
Accrued employee benefits	5,025	5,946
Inventories	563	2,618
Trade receivable, net	199	266
Net operating loss carryforwards	15,637	7,843
Tax credit carryforwards	5,069	4,791
Other assets	1,830	2,737
Other	1,018	520
Deferred tax assets, gross	30,611	27,609
Valuation allowance	(8,217)	(7,057)
Deferred tax assets, net	22,394	20,552
Property and equipment	(22,380)	(24,229)
Intangible assets	(819)	(980)
Prepaid expenses	(477)	(467)
Total deferred tax liabilities	(23,676)	(25,676)
Net deferred income tax liabilities	$ (1,282)	$ (5,124)

Note 15 - Income Taxes - Summ76

Note 15 - Income Taxes - Summary of Changes in Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Unrecognized income tax benefits, beginning of year	$ 4,874	$ 2,313	$ 6,207
Decreases for settlements			(3,265)
Decreases for lapse in statute of limitations		(1,199)	(115)
Decreases for positions taken in current year			(615)
Increases for positions taken in prior years		3,716	101
Increases for positions taken in the current year		44
Unrecognized income tax benefits, end of year	$ 4,874	$ 4,874	$ 2,313

Note 16 - Accumulated Other C77

Note 16 - Accumulated Other Comprehensive Loss - Summary of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Pension liability adjustment, net of income tax benefit of $886 and $966	$ (1,493)	$ (1,624)
Deferred gain on cash flow derivatives, net of income tax expense of $6 and $49	10	86
Total	$ (1,483)	$ (1,538)	$ (1,833)

Note 16 - Accumulated Other C78

Note 16 - Accumulated Other Comprehensive Loss - Summary of Accumulated Other Comprehensive Loss (Details) (Parentheticals) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015
Pension liability adjustment, tax effect	$ 886	$ 966
Net deferred gain (loss) on cash flow derivatives, tax effect	$ 6	$ 49

Note 16 - Accumulated Other C79

Note 16 - Accumulated Other Comprehensive Loss - Components of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Balance	$ (1,538)	$ (1,833)
Other comprehensive income before reclassifications	(173)	167
Amounts reclassified from Accumulated other comprehensive loss	228	128
Net current period adjustments to Other comprehensive income (loss)	55	295	$ (572)
Balance	(1,483)	(1,538)	(1,833)
Defined Benefit Pension Items [Member]
Balance	(1,624)	(1,862)
Other comprehensive income before reclassifications	(125)	17
Amounts reclassified from Accumulated other comprehensive loss	256	221
Net current period adjustments to Other comprehensive income (loss)	131	238
Balance	(1,493)	(1,624)	(1,862)
Gains (Losses) on Cash Flow Hedges [Member]
Balance	86	29
Other comprehensive income before reclassifications	(48)	150
Amounts reclassified from Accumulated other comprehensive loss	(28)	(93)
Net current period adjustments to Other comprehensive income (loss)	(76)	57
Balance	$ 10	$ 86	$ 29

Note 16 - Accumulated Other C80

Note 16 - Accumulated Other Comprehensive Loss - Schedule of Reclassifications of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cost of sales									$ (159,481)	$ (249,233)	$ (362,722)
Associated income tax benefit									4,756	11,951	(4,651)
Net loss	$ 5,834	$ 727	$ (6,242)	$ (9,583)	$ (13,693)	$ (1,515)	$ (12,079)	$ (2,101)	(9,263)	(29,388)	(17,887)
Net sales	$ 39,179	$ 41,088	$ 42,061	$ 33,928	$ 45,562	$ 52,335	$ 53,846	$ 84,865	156,256	236,608	403,298
Reclassification out of Accumulated Other Comprehensive Income [Member]
Net loss									(228)	(128)	(112)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Cost of sales									(392)	(352)	(182)
Associated income tax benefit									136	131	68
Net loss									(256)	(221)	(114)
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member]
Associated income tax benefit									(17)	(56)	(1)
Net loss									28	93	2
Net sales									45	147	6
Reclassification out of Accumulated Other Comprehensive Income [Member] | Accumulated Net Gain (Loss) from Hedge Ineffectiveness [Member]
Net sales										$ 2	$ (3)

Note 17 - Segment Information81

Note 17 - Segment Information (Details Textual) - USD ($) $ in Thousands	1 Months Ended	3 Months Ended		12 Months Ended
	Apr. 30, 2015	Dec. 31, 2016	Jun. 30, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Restructuring Charges	$ 600			$ 990
Goodwill, Impairment Loss					5,282	16,066
Property, Plant and Equipment, Net		$ 118,101		118,101	131,848
MEXICO
Property, Plant and Equipment, Net		4,100		4,100	4,300
Denver Facility [Member]
Gain (Loss) on Disposition of Property Plant Equipment		7,900		7,860
Water Transmission Group [Member]
Restructuring Charges				1,000
Goodwill, Impairment Loss			$ 5,300		$ 5,300
Water Transmission Group [Member] | Denver Facility [Member]
Gain (Loss) on Disposition of Property Plant Equipment		$ 7,900		$ 7,900
Tubular Products [Member]
Goodwill, Impairment Loss						$ 16,100
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Customer One [Member] | Water Transmission Group [Member]
Concentration Risk, Percentage				27.00%		16.00%
Sales Revenue, Net [Member] | Customer Concentration Risk [Member] | Customer Two [Member] | Tubular Products [Member]
Concentration Risk, Percentage						10.00%

Note 17 - Segment Information -

Note 17 - Segment Information - Segment Information Report of Statements of Operations (Details) - USD ($) $ in Thousands	3 Months Ended																12 Months Ended
	Dec. 31, 2016		Sep. 30, 2016		Jun. 30, 2016		Mar. 31, 2016		Dec. 31, 2015		Sep. 30, 2015		Jun. 30, 2015		Mar. 31, 2015		Dec. 31, 2016		Dec. 31, 2015		Dec. 31, 2014
Net sales	$ 39,179		$ 41,088		$ 42,061		$ 33,928		$ 45,562		$ 52,335		$ 53,846		$ 84,865		$ 156,256		$ 236,608		$ 403,298
Gross profit (loss)	2,251		2,123		(2,162)		(5,437)		(11,412)		(2,511)		(2,593)		3,891		(3,225)		(12,625)		40,576
Operating Income (loss)	4,819		(2,063)		(6,253)		(10,036)		(16,516)		(7,284)		(13,327)		(3,083)		(13,533)		(40,210)		194
Depreciation and amortization expense																	9,969		9,615		14,146
Capital expenditures																	2,292		8,515		14,289
UNITED STATES
Net sales																	144,280		224,691		383,344
CANADA
Net sales																	11,976		11,917		19,954
Operating Segments [Member]
Operating Income (loss)																	(2,287)		(27,291)		14,813
Depreciation and amortization expense																	9,526		9,177		13,806
Capital expenditures																	2,072		8,192		13,716
Water Transmission Group [Member] | Operating Segments [Member]
Net sales	39,179		41,075		39,775		29,358		38,681		39,792		38,445		56,242		149,387		173,160		238,545
Gross profit (loss)	3,767		2,939		(1,272)		(5,750)		(7,443)		(725)		1,255		7,519		(317)		606		39,601
Operating Income (loss)	9,590	[1]	1,363	[1]	(2,648)	[1]	(7,256)	[1]	(9,026)	[2]	(2,384)	[2]	(5,815)	[2]	5,633	[2]	1,049	[1],[3]	(11,592)	[2],[3]	31,490	[3]
Depreciation and amortization expense																	8,750		7,318		8,716
Capital expenditures																	2,072		6,313		6,190
Tubular Products [Member] | Operating Segments [Member]
Net sales			13		2,286		4,570		6,881		12,543		15,401		28,623		6,869		63,448		164,753
Gross profit (loss)	(1,516)		(816)		(890)		313		(3,969)		(1,786)		(3,848)		(3,628)		(2,908)		(13,231)		975
Operating Income (loss)	$ (1,636)		$ (802)		$ (1,002)		$ 104		$ (4,530)		$ (2,298)		$ (4,254)		$ (4,617)		(3,336)	[4]	(15,699)	[4]	(16,677)	[4]
Depreciation and amortization expense																	776		1,859		5,090
Capital expenditures																			1,879		7,526
Corporate Segment [Member]
Operating Income (loss)																	(11,246)		(12,919)		(14,619)
Depreciation and amortization expense																	443		438		340
Capital expenditures																	$ 220		$ 323		$ 573
[1]	Operating income for Water Transmission for the fourth quarter of 2016 includes the gain on sale of facility of $7.9 million.
[2]	Operating loss for Water Transmission for the second quarter of 2015 includes the write-off of goodwill of $5.3 million.
[3]	Operating income for Water Transmission for 2016 includes restructuring expenses of $1.0 million and gain on sale of facility of $7.9 million. Operating loss for Water Transmission for 2015 includes the write-off of goodwill of $5.3 million.
[4]	Operating loss for Tubular Products for 2014 includes the write-off of goodwill of $16.1 million.

Note 17 - Segment Information83

Note 17 - Segment Information - Segment Information Report of Balance Sheets (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Assets	$ 241,555	$ 259,380
Operating Segments [Member]
Assets	210,888	234,392
Water Transmission Group [Member] | Operating Segments [Member]
Assets	170,486	185,607
Tubular Products [Member] | Operating Segments [Member]
Assets	40,402	48,785
Corporate Segment [Member]
Assets	$ 30,667	$ 24,988

Note 18 - Restructuring (Detail

Note 18 - Restructuring (Details Textual) - USD ($) $ in Thousands	1 Months Ended	12 Months Ended
	Apr. 30, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Restructuring Charges	$ 600	$ 990
Accounts Payable and Accrued Liabilities [Member]
Restructuring Reserve, Current			$ 100
Cost of Sales [Member]
Restructuring Charges	500
Selling, General and Administrative Expenses [Member]
Restructuring Charges	$ 100
Employee Severance [Member]
Restructuring Charges		500
Restructuring and Related Cost, Expected Cost Remaining		100
Demobilization Activities [Member]
Restructuring Charges		500
Demobilization Activities [Member] | Maximum [Member]
Restructuring and Related Cost, Expected Cost Remaining		$ 1,000

Note 19 - Related Party Trans85

Note 19 - Related Party Transactions (Details Textual) $ in Millions	12 Months Ended
	Dec. 31, 2014USD ($)
Raymond James & Associates [Member]
Related Party Transaction, Amounts of Transaction	$ 1.2
Eagle Asset Management, Inc. [Member]
Related Party Transaction, Percentage Owned By Related Party	10.00%

Note 20 - Quarterly Data (Una86

Note 20 - Quarterly Data (Unaudited) (Details Textual) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Dec. 31, 2016	Jun. 30, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Goodwill, Impairment Loss				$ 5,282	$ 16,066
Water Transmission Group [Member]
Goodwill, Impairment Loss		$ 5,300		5,300
Denver Facility [Member]
Gain (Loss) on Disposition of Property Plant Equipment	$ 7,900		7,860
Denver Facility [Member] | Water Transmission Group [Member]
Gain (Loss) on Disposition of Property Plant Equipment	$ 7,900		$ 7,900

Note 20 - Quarterly Data (Una87

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, 2016		Sep. 30, 2016		Jun. 30, 2016		Mar. 31, 2016		Dec. 31, 2015		Sep. 30, 2015		Jun. 30, 2015		Mar. 31, 2015		Dec. 31, 2016		Dec. 31, 2015		Dec. 31, 2014
Net sales	$ 39,179		$ 41,088		$ 42,061		$ 33,928		$ 45,562		$ 52,335		$ 53,846		$ 84,865		$ 156,256		$ 236,608		$ 403,298
Gross profit (loss)	2,251		2,123		(2,162)		(5,437)		(11,412)		(2,511)		(2,593)		3,891		(3,225)		(12,625)		40,576
Operating income (loss)	4,819		(2,063)		(6,253)		(10,036)		(16,516)		(7,284)		(13,327)		(3,083)		(13,533)		(40,210)		194
Net income (loss)	$ 5,834		$ 727		$ (6,242)		$ (9,583)		$ (13,693)		$ (1,515)		$ (12,079)		$ (2,101)		$ (9,263)		$ (29,388)		$ (17,887)
Basic (in dollars per share)	$ 0.61		$ 0.08		$ (0.65)		$ (1)										$ (0.97)
Diluted (in dollars per share)	$ 0.60		$ 0.08		$ (0.65)		$ (1)										(0.97)
Total (in dollars per share)									$ (1.43)		$ (0.16)		$ (1.26)		$ (0.22)		$ (0.97)		$ (3.07)		$ (1.88)
Operating Segments [Member]
Operating income (loss)																	$ (2,287)		$ (27,291)		$ 14,813
Corporate, Non-Segment [Member]
Operating income (loss)	$ (3,135)		$ (2,624)		$ (2,603)		$ (2,884)		$ (2,960)		$ (2,602)		$ (3,258)		$ (4,099)		(11,246)		(12,919)
Water Transmission Group [Member] | Operating Segments [Member]
Net sales	39,179		41,075		39,775		29,358		38,681		39,792		38,445		56,242		149,387		173,160		238,545
Gross profit (loss)	3,767		2,939		(1,272)		(5,750)		(7,443)		(725)		1,255		7,519		(317)		606		39,601
Operating income (loss)	9,590	[1]	1,363	[1]	(2,648)	[1]	(7,256)	[1]	(9,026)	[2]	(2,384)	[2]	(5,815)	[2]	5,633	[2]	1,049	[1],[3]	(11,592)	[2],[3]	31,490	[3]
Tubular Products [Member] | Operating Segments [Member]
Net sales			13		2,286		4,570		6,881		12,543		15,401		28,623		6,869		63,448		164,753
Gross profit (loss)	(1,516)		(816)		(890)		313		(3,969)		(1,786)		(3,848)		(3,628)		(2,908)		(13,231)		975
Operating income (loss)	$ (1,636)		$ (802)		$ (1,002)		$ 104		$ (4,530)		$ (2,298)		$ (4,254)		$ (4,617)		$ (3,336)	[4]	$ (15,699)	[4]	$ (16,677)	[4]
[1]	Operating income for Water Transmission for the fourth quarter of 2016 includes the gain on sale of facility of $7.9 million.
[2]	Operating loss for Water Transmission for the second quarter of 2015 includes the write-off of goodwill of $5.3 million.
[3]	Operating income for Water Transmission for 2016 includes restructuring expenses of $1.0 million and gain on sale of facility of $7.9 million. Operating loss for Water Transmission for 2015 includes the write-off of goodwill of $5.3 million.
[4]	Operating loss for Tubular Products for 2014 includes the write-off of goodwill of $16.1 million.

Schedule II - Valuation and Qua

Schedule II - Valuation and Qualifying Accounts - Valuation and Qualifying Accounts (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Allowance for Doubtful Accounts [Member]
Balance at Beginning of Period	$ 751	$ 755	$ 685
Charged to Profit and Loss	295	416	411
Deduction from Reserves	(531)	(420)	(341)
Balance at End of Period	515	751	755
Valuation Allowance of Deferred Tax Assets [Member]
Balance at Beginning of Period	7,057	1,858	1,894
Charged to Profit and Loss	1,160	5,217	26
Deduction from Reserves		(18)	(62)
Balance at End of Period	$ 8,217	$ 7,057	$ 1,858