Document_and_Entity_Informatio
| Document and Entity Information Document | 9 Months Ended | |
| Sep. 30, 2014 | Nov. 07, 2014 | |
| Entity Information [Line Items] | ' | ' |
| Entity Registrant Name | 'CORE MOLDING TECHNOLOGIES INC. | ' |
| Entity Central Index Key | '0001026655 | ' |
| Document Type | '10-Q | ' |
| Document Period End Date | 30-Sep-14 | ' |
| Amendment Flag | 'false | ' |
| Document Fiscal Year Focus | '2014 | ' |
| Document Fiscal Period Focus | 'Q3 | ' |
| Current Fiscal Year End Date | '--12-31 | ' |
| Entity Well-known Seasoned Issuer | 'No | ' |
| Entity Voluntary Filers | 'No | ' |
| Entity Current Reporting Status | 'Yes | ' |
| Entity Filer Category | 'Smaller Reporting Company | ' |
| Entity Common Stock, Shares Outstanding | ' | 7,670,449 |
Consolidated_Balance_Sheets
| Consolidated Balance Sheets (USD $) | Sep. 30, 2014 | Dec. 31, 2013 |
| Current assets: | ' | ' |
| Cash and cash equivalents | $1,360,000 | $2,266,000 |
| Accounts receivable (less allowance for doubtful accounts: September 30, 2014 - $229,000; December 31, 2013 - $141,000) | 31,011,000 | 22,069,000 |
| Inventories: | ' | ' |
| Inventory, Finished Goods, Net of Reserves | 1,500,000 | 1,739,000 |
| Inventory, Work in Process, Net of Reserves | 1,649,000 | 1,515,000 |
| Inventory, Stores, Net of Reserves | 7,788,000 | 7,573,000 |
| Total inventories, net | 10,937,000 | 10,827,000 |
| Deferred tax asset-current portion | 1,615,000 | 1,615,000 |
| Foreign sales tax receivable | 1,472,000 | 1,324,000 |
| Income taxes receivable | 0 | 327,000 |
| Prepaid expenses and other current assets | 1,005,000 | 822,000 |
| Total current assets | 47,400,000 | 39,250,000 |
| Property, plant and equipment — net | 61,378,000 | 56,478,000 |
| Deferred tax asset | 296,000 | 296,000 |
| Goodwill | 1,097,000 | 1,097,000 |
| Total Assets | 110,171,000 | 97,121,000 |
| Current liabilities: | ' | ' |
| Revolving line of credit | 6,365,000 | 0 |
| Current portion of long-term debt | 1,714,000 | 3,314,000 |
| Current portion of interest rate swaps | 43,000 | 71,000 |
| Accounts payable | 9,309,000 | 9,625,000 |
| Tooling in progress | 2,042,000 | 334,000 |
| Current portion of post retirement benefits liability | 943,000 | 943,000 |
| Accrued liabilities: | ' | ' |
| Compensation and related benefits | 6,513,000 | 5,952,000 |
| Taxes | 146,000 | 199,000 |
| Other | 1,212,000 | 943,000 |
| Total current liabilities | 28,287,000 | 21,381,000 |
| Long-term debt | 1,143,000 | 2,429,000 |
| Interest rate swaps | 7,000 | 32,000 |
| Post retirement benefits liability | 5,564,000 | 5,831,000 |
| Total Liabilities | 35,001,000 | 29,673,000 |
| Commitments and Contingencies | 0 | 0 |
| Stockholders' Equity: | ' | ' |
| Preferred stock — $0.01 par value, authorized shares — 10,000,000; outstanding shares: 0 at September 30, 2014 and December 31, 2013 | 0 | 0 |
| Common stock — $0.01 par value, authorized shares – 20,000,000; outstanding shares: 7,543,588 at September 30, 2014 and 7,318,773 at December 31, 2013 | 75,000 | 73,000 |
| Paid-in capital | 27,806,000 | 26,757,000 |
| Accumulated other comprehensive income, net of income taxes | 4,651,000 | 4,872,000 |
| Treasury stock | -27,258,000 | -27,082,000 |
| Retained earnings | 69,896,000 | 62,828,000 |
| Total Stockholders' Equity | 75,170,000 | 67,448,000 |
| Total Liabilities and Stockholders' Equity | $110,171,000 | $97,121,000 |
Consolidated_Balance_Sheets_Pa
| Consolidated Balance Sheets - Parenthetical (USD $) | Sep. 30, 2014 | Dec. 31, 2013 |
| Assets, Current [Abstract] | ' | ' |
| Allowance for doubtful accounts | $229,000 | $141,000 |
| Stockholders' Equity Attributable to Parent [Abstract] | ' | ' |
| Preferred stock, par value | $0.01 | $0.01 |
| Preferred stock, shares authorized | 10,000,000 | 10,000,000 |
| Preferred stock, shares outstanding | 0 | 0 |
| Common stock, par value | $0.01 | $0.01 |
| Common stock, shares authorized | 20,000,000 | 20,000,000 |
| Common Stock, Shares, Outstanding | 7,543,588 | 7,318,773 |
Consolidated_Statements_of_Inc
| Consolidated Statements of Income (Unaudited) (USD $) | 3 Months Ended | 9 Months Ended | ||
| Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013 | |
| Net sales: | ' | ' | ' | ' |
| Products | $43,171,000 | $32,342,000 | $127,152,000 | $97,346,000 |
| Tooling | 420,000 | 5,092,000 | 3,638,000 | 9,131,000 |
| Total net sales | 43,591,000 | 37,434,000 | 130,790,000 | 106,477,000 |
| Total cost of sales | 35,444,000 | 31,064,000 | 108,399,000 | 88,228,000 |
| Gross margin | 8,147,000 | 6,370,000 | 22,391,000 | 18,249,000 |
| Total selling, general and administrative expense | 4,443,000 | 3,422,000 | 11,698,000 | 10,184,000 |
| Income before interest and taxes | 3,704,000 | 2,948,000 | 10,693,000 | 8,065,000 |
| Interest expense | 27,000 | 45,000 | 99,000 | 183,000 |
| Income before income taxes | 3,677,000 | 2,903,000 | 10,594,000 | 7,882,000 |
| Income tax expense | 1,249,000 | 943,000 | 3,526,000 | 2,652,000 |
| Net income | $2,428,000 | $1,960,000 | $7,068,000 | $5,230,000 |
| Net income per common share: | ' | ' | ' | ' |
| Basic (USD per share) | $0.32 | $0.27 | $0.94 | $0.73 |
| Diluted (USD per share) | $0.32 | $0.26 | $0.94 | $0.71 |
| Weighted average shares outstanding: | ' | ' | ' | ' |
| Basic | 7,540,000 | 7,257,000 | 7,492,000 | 7,186,000 |
| Diluted | 7,576,000 | 7,418,000 | 7,542,000 | 7,411,000 |
Consolidated_Statements_of_Com
| Consolidated Statements of Comprehensive Income (Unaudited) (USD $) | 3 Months Ended | 9 Months Ended | ||
| Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013 | |
| Document Fiscal Year Focus | ' | ' | '2014 | ' |
| Net income | $2,428,000 | $1,960,000 | $7,068,000 | $5,230,000 |
| Interest rate swaps: | ' | ' | ' | ' |
| Adjustment for amortization of losses included in net income | 6,000 | 5,000 | 16,000 | 31,000 |
| Income tax expense | 2,000 | 2,000 | 6,000 | 11,000 |
| Post retirement benefit plan adjustments: | ' | ' | ' | ' |
| Net actuarial loss | 12,000 | 51,000 | 36,000 | 151,000 |
| Prior service costs | -124,000 | -124,000 | -372,000 | -372,000 |
| Income tax benefit | 35,000 | 22,000 | 105,000 | 65,000 |
| Comprehensive income | $2,355,000 | $1,912,000 | $6,847,000 | $5,094,000 |
Consolidated_Statement_of_Stoc
| Consolidated Statement of Stockholders' Equity (Unaudited) (USD $) | Total | Common Stock Outstanding | Paid-In Capital | Accumulated Other Comprehensive Income | Treasury Stock | Retained Earnings |
| Balance at Dec. 31, 2013 | $67,448,000 | $73,000 | $26,757,000 | $4,872,000 | ($27,082,000) | $62,828,000 |
| Balance, shares at Dec. 31, 2013 | ' | 7,318,773 | ' | ' | ' | ' |
| Net income | 7,068,000 | ' | ' | ' | ' | ' |
| Change in post retirement benefits, net of tax of $105,000 | -231,000 | ' | ' | -231,000 | ' | ' |
| Change in interest rate swaps, net of tax of $6,000 | 10,000 | ' | ' | 10,000 | ' | ' |
| Common stock issued- net, shares | ' | 185,360 | ' | ' | ' | ' |
| Common stock issued- net, value | 326,000 | 1,000 | 325,000 | ' | ' | ' |
| Excess tax benefit - equity transactions | 285,000 | ' | 285,000 | ' | ' | ' |
| Purchase of treasury stock, shares | ' | -14,429 | ' | ' | ' | ' |
| Purchase of treasury stock, value | -176,000 | ' | ' | ' | -176,000 | ' |
| Restricted stock vested | ' | 53,884 | ' | ' | ' | ' |
| Restricted stock vested, value | 1,000 | 1,000 | ' | ' | ' | ' |
| Share-based compensation | 439,000 | ' | 439,000 | ' | ' | ' |
| Balance at Sep. 30, 2014 | $75,170,000 | $75,000 | ($27,806,000) | $4,651,000 | $27,258,000 | $69,896,000 |
| Balance, shares at Sep. 30, 2014 | ' | 7,543,588 | ' | ' | ' | ' |
Consolidated_Statement_of_Stoc1
| Consolidated Statement of Stockholders' Equity (Unaudited) - Parenthetical (USD $) | 9 Months Ended |
| Sep. 30, 2014 | |
| Statement of Stockholders' Equity [Abstract] | ' |
| Tax effect of change in post retirement benefits | $105,000 |
| Tax effect of change in interest rate swaps | $6,000 |
Consolidated_Statements_of_Cas
| Consolidated Statements of Cash Flows (Unaudited) (USD $) | 9 Months Ended | |
| Sep. 30, 2014 | Sep. 30, 2013 | |
| Cash flows from operating activities: | ' | ' |
| Net income | $7,068,000 | $5,230,000 |
| Adjustments to reconcile net income to net cash provided by operating activities: | ' | ' |
| Depreciation and amortization | 3,888,000 | 3,665,000 |
| Deferred income taxes | 0 | -54,000 |
| Interest rate swaps - Mark-to-market and amortization of losses | -37,000 | -69,000 |
| Share-based compensation | 439,000 | 329,000 |
| Loss on disposal of assets | 0 | 6,000 |
| (Gain) loss on foreign currency translation and transaction | 47,000 | 8,000 |
| Change in operating assets and liabilities: | ' | ' |
| Accounts receivable | -8,942,000 | -4,816,000 |
| Inventories | -110,000 | 100,000 |
| Prepaid and other assets | -380,000 | -114,000 |
| Accounts payable | 295,000 | 1,091,000 |
| Increase (Decrease) in Income Taxes Receivable | 327,000 | 0 |
| Accrued and other liabilities | 2,587,000 | 772,000 |
| Post retirement benefits liability | -603,000 | -344,000 |
| Net cash provided by operating activities | 4,579,000 | 5,804,000 |
| Cash flows from investing activities: | ' | ' |
| Purchase of property, plant and equipment | -9,399,000 | -7,127,000 |
| Proceeds from sale of property, plant and equipment | 0 | 92,000 |
| Net cash used in investing activities | -9,399,000 | -7,035,000 |
| Cash flows from financing activities: | ' | ' |
| Gross repayments on revolving line of credit | -48,675,000 | 0 |
| Gross borrowings on revolving line of credit | 55,040,000 | 0 |
| Payment of principal on Mexican loan | -1,600,000 | -1,600,000 |
| Payments of principal on capex loan | -1,286,000 | -1,286,000 |
| Payment of principal on industrial development revenue bond | 0 | -420,000 |
| Excess tax benefit from equity plans | 285,000 | 0 |
| Payments related to purchase of treasury stock | -176,000 | -334,000 |
| Proceeds from issuance of common stock | 326,000 | 409,000 |
| Net cash used in financing activities | 3,914,000 | -3,231,000 |
| Net change in cash and cash equivalents | -906,000 | -4,462,000 |
| Cash and cash equivalents at beginning of period | 2,266,000 | 7,838,000 |
| Cash and cash equivalents at end of period | 1,360,000 | 3,376,000 |
| Cash paid for: | ' | ' |
| Interest (net of amounts capitalized) | 88,000 | 176,000 |
| Income taxes | 2,609,000 | 1,056,000 |
| Non Cash: | ' | ' |
| Fixed asset purchases in accounts payable | $49,000 | $82,000 |
Basis_of_Presentation
| Basis of Presentation | 9 Months Ended |
| Sep. 30, 2014 | |
| Organization, Consolidation and Presentation of Financial Statements [Abstract] | ' |
| Basis of Presentation | ' |
| Basis of Presentation | |
| The accompanying unaudited consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q and include all of the information and disclosures required by accounting principles generally accepted in the United States of America for interim reporting, which are less than those required for annual reporting. In the opinion of management, the accompanying unaudited consolidated financial statements contain all adjustments (all of which are normal and recurring in nature) necessary to present fairly the financial position of Core Molding Technologies, Inc. and its subsidiaries (“Core Molding Technologies” or the “Company”) at September 30, 2014, and the results of operations and cash flows for the nine months ended September 30, 2014. The “Notes to Consolidated Financial Statements,” which are contained in the Company's 2013 Annual Report to Shareholders, should be read in conjunction with these consolidated financial statements. | |
| Core Molding Technologies and its subsidiaries operate in the plastics market in a family of products known as “reinforced plastics". Reinforced plastics are combinations of resins and reinforcing fibers (typically glass or carbon) that are molded to shape. Core Molding Technologies is a manufacturer of sheet molding compound ("SMC") and molder of fiberglass reinforced plastics. The Company specializes in large-format moldings and offers a wide range of fiberglass processes, including compression molding of SMC, glass mat thermoplastics ("GMT") and bulk molding compounds ("BMC"), spray-up, hand-lay-up, and resin transfer molding ("RTM"). Additionally, the Company offers reaction injection molding ("RIM"), utilizing dicyclopentadiene technology. Core Molding Technologies maintains four production facilities in Columbus, Ohio; Batavia, Ohio; Gaffney, South Carolina; and Matamoros, Mexico. | |
| The Company operates in one business segment as a manufacturer of SMC and molder of fiberglass reinforced plastics. The Company produces and sells SMC and molded products for varied markets, including light, medium and heavy-duty trucks, automobiles and automotive aftermarket, marine, construction and other commercial products. |
Net_Income_per_Common_Share
| Net Income per Common Share | 9 Months Ended | |||||||||||||||
| Sep. 30, 2014 | ||||||||||||||||
| Earnings Per Share [Abstract] | ' | |||||||||||||||
| Net Income per Common Share | ' | |||||||||||||||
| Net Income per Common Share | ||||||||||||||||
| Net income per common share is computed based on the weighted average number of common shares outstanding during the period. Diluted net income per common share is computed similarly but includes the effect of the assumed exercise of dilutive stock options and restricted stock under the treasury stock method. | ||||||||||||||||
| The computation of basic and diluted net income per common share is as follows: | ||||||||||||||||
| Three Months Ended | Nine Months Ended | |||||||||||||||
| September 30, | September 30, | |||||||||||||||
| 2014 | 2013 | 2014 | 2013 | |||||||||||||
| Net income | $ | 2,428,000 | $ | 1,960,000 | $ | 7,068,000 | $ | 5,230,000 | ||||||||
| Weighted average common shares outstanding — basic | 7,540,000 | 7,257,000 | 7,492,000 | 7,186,000 | ||||||||||||
| Effect of dilutive securities | 36,000 | 161,000 | 50,000 | 225,000 | ||||||||||||
| Weighted average common and potentially issuable common shares outstanding — diluted | 7,576,000 | 7,418,000 | 7,542,000 | 7,411,000 | ||||||||||||
| Basic net income per common share | $ | 0.32 | $ | 0.27 | $ | 0.94 | $ | 0.73 | ||||||||
| Diluted net income per common share | $ | 0.32 | $ | 0.26 | $ | 0.94 | $ | 0.71 | ||||||||
| All unexercised stock options were included in diluted earnings per share for the three and nine months ended September 30, 2014 and 2013, respectively. | ||||||||||||||||
Major_Customers
| Major Customers | 9 Months Ended | |||||||||||||||
| Sep. 30, 2014 | ||||||||||||||||
| Revenue, Net [Abstract] | ' | |||||||||||||||
| Major Customers | ' | |||||||||||||||
| Major Customers | ||||||||||||||||
| Core Molding Technologies has four major customers, Navistar, Inc. (“Navistar”), Volvo Group North America, LLC ("Volvo"), PACCAR, Inc. (“PACCAR”), and Yamaha Motor Manufacturing Corporation ("Yamaha") as of September 30, 2014. Major customers are defined as customers whose sales individually consist of more than ten percent of total sales during any reporting period in the current year. The following table presents sales revenue for the above-mentioned customers for the three and nine months ended September 30, 2014 and 2013: | ||||||||||||||||
| Three Months Ended | Nine Months Ended | |||||||||||||||
| September 30, | September 30, | |||||||||||||||
| 2014 | 2013 | 2014 | 2013 | |||||||||||||
| Navistar product sales | $ | 13,104,000 | $ | 11,330,000 | $ | 39,724,000 | $ | 35,548,000 | ||||||||
| Navistar tooling sales | 25,000 | 171,000 | 75,000 | 760,000 | ||||||||||||
| Total Navistar sales | 13,129,000 | 11,501,000 | 39,799,000 | 36,308,000 | ||||||||||||
| Volvo product sales | 12,020,000 | 1,817,000 | 33,877,000 | 4,377,000 | ||||||||||||
| Volvo tooling sales | 290,000 | 54,000 | 1,438,000 | 631,000 | ||||||||||||
| Total Volvo sales | 12,310,000 | 1,871,000 | 35,315,000 | 5,008,000 | ||||||||||||
| PACCAR product sales | 9,752,000 | 12,044,000 | 26,423,000 | 33,896,000 | ||||||||||||
| PACCAR tooling sales | 90,000 | 4,843,000 | 379,000 | 7,052,000 | ||||||||||||
| Total PACCAR sales | 9,842,000 | 16,887,000 | 26,802,000 | 40,948,000 | ||||||||||||
| Yamaha product sales | 3,315,000 | 2,115,000 | 12,543,000 | 9,029,000 | ||||||||||||
| Yamaha tooling sales | — | — | — | — | ||||||||||||
| Total Yamaha sales | 3,315,000 | 2,115,000 | 12,543,000 | 9,029,000 | ||||||||||||
| Other product sales | 4,980,000 | 5,036,000 | 14,585,000 | 14,496,000 | ||||||||||||
| Other tooling sales | 15,000 | 24,000 | 1,746,000 | 688,000 | ||||||||||||
| Total other sales | 4,995,000 | 5,060,000 | 16,331,000 | 15,184,000 | ||||||||||||
| Total product sales | 43,171,000 | 32,342,000 | 127,152,000 | 97,346,000 | ||||||||||||
| Total tooling sales | 420,000 | 5,092,000 | 3,638,000 | 9,131,000 | ||||||||||||
| Total sales | $ | 43,591,000 | $ | 37,434,000 | $ | 130,790,000 | $ | 106,477,000 | ||||||||
Property_Plant_Equipment
| Property, Plant & Equipment | 9 Months Ended | |||||||
| Sep. 30, 2014 | ||||||||
| Property, Plant and Equipment [Abstract] | ' | |||||||
| Property, Plant & Equipment | ' | |||||||
| Property, Plant & Equipment | ||||||||
| Property, plant and equipment consisted of the following at September 30, 2014 and December 31, 2013: | ||||||||
| September 30, 2014 | December 31, 2013 | |||||||
| Property, plant and equipment | $ | 118,145,000 | $ | 109,407,000 | ||||
| Accumulated depreciation | (56,767,000 | ) | (52,929,000 | ) | ||||
| Property, plant and equipment — net | $ | 61,378,000 | $ | 56,478,000 | ||||
| Property, plant, and equipment are recorded at cost. Depreciation is provided on a straight-line method over the estimated useful lives of the assets. The carrying amount of long-lived assets is evaluated annually to determine if an adjustment to the depreciation period or to the unamortized balance is warranted. Additions in progress were $4,037,000 and $5,953,000 at September 30, 2014 and December 31, 2013, respectively. The Company capitalized $66,000 and $37,000 of interest expense for the nine months ended September 30, 2014 and 2013, respectively. At September 30, 2014, and December 31, 2013, purchase commitments for capital expenditures in progress were $1,053,000 and $4,629,000, respectively. | ||||||||
Post_Retirement_Benefits
| Post Retirement Benefits | 9 Months Ended | |||||||||||||||
| Sep. 30, 2014 | ||||||||||||||||
| Compensation and Retirement Disclosure [Abstract] | ' | |||||||||||||||
| Post Retirement Benefits | ' | |||||||||||||||
| Post Retirement Benefits | ||||||||||||||||
| The components of expense for Core Molding Technologies’ post retirement benefit plans for the three and nine months ended September 30, 2014 and 2013 are as follows: | ||||||||||||||||
| Three Months Ended | Nine Months Ended | |||||||||||||||
| September 30, | September 30, | |||||||||||||||
| 2014 | 2013 | 2014 | 2013 | |||||||||||||
| Pension expense: | ||||||||||||||||
| Multi-employer plan contributions | $ | 178,000 | $ | 112,000 | $ | 514,000 | $ | 327,000 | ||||||||
| Defined contribution plan contributions | 169,000 | 147,000 | 530,000 | 432,000 | ||||||||||||
| Total pension expense | 347,000 | 259,000 | 1,044,000 | 759,000 | ||||||||||||
| Health and life insurance: | ||||||||||||||||
| Interest cost | 69,000 | 83,000 | 207,000 | 249,000 | ||||||||||||
| Amortization of prior service costs | (124,000 | ) | (124,000 | ) | (372,000 | ) | (372,000 | ) | ||||||||
| Amortization of net loss | 12,000 | 51,000 | 36,000 | 151,000 | ||||||||||||
| Net periodic benefit cost | (43,000 | ) | 10,000 | (129,000 | ) | 28,000 | ||||||||||
| Total post retirement benefits expense | $ | 304,000 | $ | 269,000 | $ | 915,000 | $ | 787,000 | ||||||||
| The Company made payments of $1,006,000 to pension plans and $474,000 for post retirement healthcare and life insurance during the nine months ended September 30, 2014. For the remainder of 2014, the Company expects to make approximately $277,000 of pension plan payments. The Company also expects to make approximately $158,000 of post retirement healthcare and life insurance payments for the remainder of 2014, all of which were accrued at September 30, 2014. | ||||||||||||||||
Debt
| Debt | 9 Months Ended | |||||||
| Sep. 30, 2014 | ||||||||
| Debt Disclosure [Abstract] | ' | |||||||
| Debt | ' | |||||||
| Debt | ||||||||
| Debt consists of the following at: | ||||||||
| September 30, | December 31, | |||||||
| 2014 | 2013 | |||||||
| Capex loan payable to a bank, interest at a variable rate (1.75% at September 30, 2014 and 1.77% at December 31, 2013) with monthly payments of interest and principal through May 2016. | $ | 2,857,000 | $ | 4,143,000 | ||||
| Mexican loan payable to a bank, interest at a variable rate (1.73% at December 31, 2013) with annual principal and monthly interest payments through January 2014. Paid in full January 2014. | — | 1,600,000 | ||||||
| Revolving Line of Credit | 6,365,000 | — | ||||||
| Total | 9,222,000 | 5,743,000 | ||||||
| Less current portion | (8,079,000 | ) | (3,314,000 | ) | ||||
| Long-term debt | $ | 1,143,000 | $ | 2,429,000 | ||||
| Credit Agreement | ||||||||
| In 2008, the Company and its wholly owned subsidiary, CoreComposites de Mexico, S. de R.L. de C.V., entered into a credit agreement (the “Credit Agreement”) to refinance certain existing debt and borrow funds to finance the construction of the Company’s manufacturing facility in Mexico. | ||||||||
| Under this Credit Agreement, the Company received certain loans, subject to the terms and conditions stated in the agreement, which included (1) a $12,000,000 Capex loan; (2) an $8,000,000 Mexican loan; (3) an $8,000,000 variable rate revolving line of credit; (4) a letter of credit in an undrawn face amount of $3,332,000 with respect to the Company’s existing Industrial Development Revenue Bond (“IDRB”) financing. The Credit Agreement is secured by a guarantee of each U.S. subsidiary of the Company, and by a lien on substantially all of the present and future assets of the Company and its U.S. subsidiaries, except that only 65% of the stock issued by CoreComposites de Mexico, S. de C.V. has been pledged. The $8,000,000 Mexican loan is also secured by substantially all of the present and future assets of the Company’s Mexican subsidiary. | ||||||||
| On March 27, 2013, the Company and its wholly owned subsidiary, CoreComposites de Mexico, S. de R.L. de C.V., entered into an eighth amendment (the "Eighth Amendment") to the Credit Agreement. Pursuant to the terms of the Eighth Amendment, the parties agreed to modify certain terms of the Credit Agreement. These modifications included (1) an increase to the borrowing limit on the revolving line of credit from $8,000,000 to $18,000,000; (2) modification to the fixed charge definition to exclude capital expenditures of up to $18,000,000 associated with the Company's compression molding capacity expansion and any sheet molding compound manufacturing capacity expansion; (3) to extend the commitment period for the revolving line of credit to May 31, 2015; and (4) to cancel, effective immediately, the unused $10,000,000 Mexican Expansion Revolving Loan that was added as part of the sixth amendment to the Credit Agreement, which had no borrowings outstanding at December 31, 2012 and was scheduled to expire on May 31, 2013. | ||||||||
| On October 31, 2013, the Company and its wholly owned subsidiary, CoreComposites de Mexico, S. de R.L. de C.V., entered into a ninth amendment (the "Ninth Amendment") to the Credit Agreement. Pursuant to the terms of the Ninth Amendment, the parties agreed to decrease the applicable margin for interest rates to 160 basis points from 175 basis points. | ||||||||
| Revolving Line of Credit | ||||||||
| The $18,000,000 revolving line of credit bears interest at daily LIBOR plus 160 basis points and is collateralized by all of the present and future assets of the Company and its U.S. subsidiaries (except that only 65% of the stock issued by CoreComposites de Mexico, S. de C.V. has been pledged). The Revolving Line of Credit, as amended, is scheduled to mature on May 31, 2015. The outstanding balance on the Revolving Line of Credit at September 30, 2014 was $6,365,000 and there was no outstanding borrowing at December 31, 2013. | ||||||||
| Bank Covenants | ||||||||
| The Company is required to meet certain financial covenants included in the Credit Agreement with respect to leverage ratios, fixed charge ratios, capital expenditures as well as other customary affirmative and negative covenants. As of September 30, 2014, the Company was in compliance with its financial covenants associated with the loans made under the Credit Agreement as described above. | ||||||||
| Management regularly evaluates the Company’s ability to meet its debt covenants. Based upon the Company’s forecasts, which are primarily based on industry analysts’ estimates of heavy and medium-duty truck production volumes, as well as other assumptions, management believes that the Company will be able to maintain compliance with its financial covenants for the next 12 months. | ||||||||
| Interest Rate Swaps | ||||||||
| In conjunction with its variable rate IDRB, the Company entered into an interest rate swap agreement through April 2013, which was initially designated as a cash flow hedging instrument. The IDRB interest rate swap expired in April 2013 upon the payment in full of the IDRB financing. Under this agreement, the Company paid a fixed rate of 4.89% to the counterparty and received 76% of the 30-day commercial paper rate. During 2010, the Company determined this interest rate swap was no longer highly effective. As a result, the Company discontinued the use of hedge accounting effective January 1, 2010 related to this swap, and began recording mark-to-market adjustments within interest expense in the Company’s Consolidated Statements of Income. The pre-tax loss previously recognized in Accumulated Other Comprehensive Income, totaling $200,000 as of December 31, 2009, was amortized as an increase to interest expense of $5,000 per month, or $3,000 net of tax, over the remaining term of the interest rate swap agreement. The IDRB was paid in full in April 2013. | ||||||||
| On December 18, 2008, the Company entered into an interest rate swap agreement that became effective May 1, 2009 and continues through May 2016, which was designated as a cash flow hedge of the $12,000,000 Capex loan. Under this agreement, the Company pays a fixed rate of 2.295% to the counterparty and receives LIBOR (0.15% at September 30, 2014). Effective March 31, 2009, the interest terms in the Company’s Credit Agreement related to the $12,000,000 Capex loan were amended. The Company then determined that this interest rate swap was no longer highly effective. As a result, the Company discontinued the use of hedge accounting effective March 31, 2009 related to this swap, and began recording mark-to-market adjustments within interest expense in the Company’s Consolidated Statements of Income. The pre-tax loss previously recognized in Accumulated Other Comprehensive Income, totaling $146,000 as of March 31, 2009, is being amortized as an increase to interest expense of approximately $2,000 per month, or $1,000 net of tax, over the remaining term of the interest rate swap agreement. The fair value of the swap as of September 30, 2014 and December 31, 2013 was a liability of $50,000 and $103,000, respectively. The Company recorded interest income of $17,000 and $19,000 for a mark-to-market adjustment of swap fair value for the first three months of 2014 and 2013, respectively related to this swap. The Company recorded interest income for the nine months ended September 30, 2014 and 2013, of $53,000 and $81,000, respectively, for mark-to-market adjustments of this swap. The notional amount of the swap at September 30, 2014 and December 31, 2013 was $2,857,000 and $4,143,000, respectively. | ||||||||
| Interest expense included $16,000 and $25,000 of expense for settlements related to the Company's swaps for the three months ended September 30, 2014 and 2013, respectively. For the nine months ended September 30, 2014 and 2013, interest expense included $56,000 and $87,000, respectively, of expense for settlements related to the Company’s swap. | ||||||||
Income_Taxes
| Income Taxes | 9 Months Ended |
| Sep. 30, 2014 | |
| Income Tax Disclosure [Abstract] | ' |
| Income Taxes | ' |
| Income Taxes | |
| The Company’s consolidated balance sheets include a net deferred tax asset of $1,911,000 at September 30, 2014 and December 31, 2013. The Company evaluates the balance of deferred tax assets that will be realized. Such evaluations are based on the premise that the Company is, and will continue to be, a going concern and that it is more likely than not that deferred tax benefits will be realized through the generation of future taxable income. | |
| Income tax expense for the nine months ended September 30, 2014 is estimated to be $3,526,000, or 33% of income before income taxes. Income tax expense for the nine months ended September 30, 2013 was estimated to be $2,652,000, or 34% of income before income taxes. | |
| As of September 30, 2014 and December 31, 2013, the Company had no liability for unrecognized tax benefits. The Company does not anticipate that unrecognized tax benefits will significantly change within the next twelve months. | |
| The Company files income tax returns in the U.S. federal jurisdiction, Mexico and various state jurisdictions. The Company is no longer subject to U.S. federal and state income tax examinations by tax authorities for the years before 2010, and no longer subject to Mexican income tax examinations by Mexican authorities for the years before 2009. |
Stock_Based_Compensation
| Stock Based Compensation | 9 Months Ended | ||||||
| Sep. 30, 2014 | |||||||
| Share-based Compensation [Abstract] | ' | ||||||
| Stock Based Compensation | ' | ||||||
| Share Based Compensation | |||||||
| The Company has a Long Term Equity Incentive Plan (the “2006 Plan”), as approved by the Company’s stockholders in May 2006. This 2006 Plan replaced the Long Term Equity Incentive Plan (the “Original Plan”) as originally approved by the stockholders in May 1997 and as amended in May 2000. The 2006 Plan allows for grants to directors and employees of non-qualified stock options, incentive stock options, stock appreciation rights, restricted stock, performance shares, performance units and other incentive awards (“Stock Awards”) up to an aggregate of 3,000,000 awards, each representing a right to buy a share of Core Molding Technologies common stock. Stock Awards can be granted under the 2006 Plan through the earlier of December 31, 2015, or the date the maximum number of available awards under the 2006 Plan have been granted. | |||||||
| Stock Options | |||||||
| The following summarizes the activity relating to stock options under the plans mentioned above for the nine months ended September 30, 2014: | |||||||
| Number | Weighted | ||||||
| of | Average | ||||||
| Options | Exercise Price | ||||||
| Outstanding at December 31, 2013 | 227,750 | $ | 3.57 | ||||
| Exercised | (224,050 | ) | 3.54 | ||||
| Granted | — | — | |||||
| Forfeited | — | — | |||||
| Outstanding at September 30, 2014 | 3,700 | $ | 5.71 | ||||
| Exercisable at September 30, 2014 | 3,700 | $ | 5.71 | ||||
| During the nine months ended September 30, 2014 employees surrendered 38,690 options as part of a net settlement transaction to cover the strike price of option exercises. The surrendered options are included in the amount of options exercised above. Total compensation cost related to incentive stock options was $0 and $5,000 for the nine months ended September 30, 2014 and 2013, respectively, which was included in selling, general and administrative expenses. | |||||||
| Tax benefits received as a result of disqualified dispositions related to stock options were $311,000 during the nine months ended September 30, 2014, which was recorded as a credit to income tax expense of $84,000 and a credit to additional paid in capital of $227,000. There were no disqualified dispositions for the nine months ended September 30, 2013. | |||||||
| Restricted Stock | |||||||
| In 2006, the Company began granting shares of its common stock to certain directors, officers, and key managers in the form of unvested stock (“Restricted Stock”). These awards are recorded at the market value of Core Molding Technologies’ common stock on the date of issuance and amortized ratably as compensation expense over the applicable vesting period. | |||||||
| The following summarizes the status of Restricted Stock and changes during the nine months ended September 30, 2014: | |||||||
| Number | Weighted | ||||||
| of | Average | ||||||
| Shares | Grant Date | ||||||
| Fair Value | |||||||
| Unvested balance at December 31, 2013 | 98,281 | $ | 8.91 | ||||
| Granted | 81,763 | 12.04 | |||||
| Vested | (53,884 | ) | 9.81 | ||||
| Forfeited | — | — | |||||
| Unvested balance at September 30, 2014 | 126,160 | $ | 10.75 | ||||
| At September 30, 2014 and 2013, there was $1,080,000 and $594,000, respectively, of total unrecognized compensation expense related to Restricted Stock granted under the 2006 Plan. That cost is expected to be recognized over the weighted-average period of 1.6 years. Total compensation cost related to restricted stock grants for the three months ended September 30, 2014 and 2013 was $135,000 and $86,000, respectively, all of which was recorded to selling, general and administrative expense. Compensation cost related to restricted stock grants for the nine months ended September 30, 2014 and 2013 was $439,000 and $324,000, respectively, all of which was recorded to selling, general and administrative expense. | |||||||
| Compensation expense for restricted stock is recorded at the fair market value at the time of the grant over the vesting period of the restricted stock grant. The Company does not receive a tax deduction for restricted stock until the restricted stock vests. The tax deduction for restricted stock is based on the fair market value as of the vesting date. Tax benefits received for vested restricted stock in excess of the fair market value as of the grant date was $58,000 for the nine months ended September 30, 2014 and was recorded as a credit to additional paid in capital. There were no tax benefits for vested restricted stock recorded for the nine month ended September 30, 2013. | |||||||
| During the nine months ended September 30, 2014 and 2013, employees surrendered 14,429 and 36,329 shares, respectively, of the Company’s common stock to satisfy income tax withholding obligations in connection with the vesting of restricted stock. | |||||||
Fair_Value_of_Financial_Instru
| Fair Value of Financial Instruments | 9 Months Ended | ||||||||||
| Sep. 30, 2014 | |||||||||||
| Fair Value Disclosures [Abstract] | ' | ||||||||||
| Fair Value of Financial Instruments | ' | ||||||||||
| Fair Value of Financial Instruments | |||||||||||
| The Company’s financial instruments consist of long-term debt, line of credit, interest rate swaps, accounts receivable, and accounts payable. The carrying amount of these financial instruments approximated their fair value. | |||||||||||
| The level in the fair value hierarchy disclosed is based on the lowest level of input that is significant to the fair value measurement. Level 2 inputs are inputs, other than quoted prices in active markets for identical asset or liabilities, that are observable for the asset or liability, either directly or indirectly through corroboration with observable market data. | |||||||||||
| The Company has two Level 2 fair value measurements both of which relate to the Company’s interest rate swaps. The IDRB interest rate swap expired in April 2013 upon the payment in full of the IDRB facility. The Company utilizes interest rate swap contracts to manage its targeted mix of fixed and floating rate debt, and these swaps are valued using observable benchmark rates at commonly quoted intervals for the full term of the swaps (market approach). These interest rate swaps are discussed in detail in Note 6. | |||||||||||
| The following table presents financial liabilities measured and recorded at fair value on the Company’s Consolidated Balance Sheets on a recurring basis and their level within the fair value hierarchy as of September 30, 2014 and December 31, 2013: | |||||||||||
| (Level 2) | |||||||||||
| Balance Sheet | September 30, | December 31, | |||||||||
| Location | 2014 Fair Value | 2013 Fair Value | |||||||||
| Derivatives not designated as hedging instruments Interest rate risk activities | Interest rate swaps | $ | 50,000 | $ | 103,000 | ||||||
| There were no non-recurring fair value measurements for the nine months ended September 30, 2014. | |||||||||||
| The effect of derivative instruments on the Consolidated Statements of Income was as follows: | |||||||||||
| Derivatives Not Designated as Hedging Instruments | Location of (Gain) Loss | Amount of Realized/Unrealized (Gain) Loss Recognized in Income on Derivatives | |||||||||
| Recognized | |||||||||||
| in Income on Derivative | |||||||||||
| Three months ended | September 30, | September 30, | |||||||||
| 2014 | 2013 | ||||||||||
| Interest rate swaps | Interest expense | $ | (12,000 | ) | $ | (14,000 | ) | ||||
| Nine Months Ended | |||||||||||
| Interest rate swaps | Interest expense | $ | (37,000 | ) | $ | (57,000 | ) | ||||
| As discussed in Note 6, the Company discontinued the use of hedge accounting for its interest rate swaps, effective March 31, 2009 for the Capex swap and January 1, 2010 for the IDRB swap. The Company has recorded all mark-to-market adjustments related to these interest rate swaps within interest expense in the Company’s Consolidated Statements of Income, since the date the Company discontinued hedge accounting for each swap. It is anticipated that during the next twelve months the expiration and settlement of cash flow hedge contracts along with the amortization of losses on discontinued hedges will result in income statement recognition of amounts currently classified in accumulated other comprehensive loss of approximately $21,000, or $14,000 net of taxes. | |||||||||||
Accumulated_Other_Comprehensiv
| Accumulated Other Comprehensive Income (Notes) | 9 Months Ended | |||||||||||
| Sep. 30, 2014 | ||||||||||||
| Accumulated Other Comprehensive Income [Abstract] | ' | |||||||||||
| Comprehensive Income (Loss) Note [Text Block] | ' | |||||||||||
| Accumulated Other Comprehensive Income | ||||||||||||
| The following table presents changes in Accumulated Other Comprehensive Income by component, net of tax, for the nine months ended September 30, 2014 and 2013: | ||||||||||||
| Losses on Interest Rate Swaps(A) | Post Retirement Benefit Plan Items(B) | Total | ||||||||||
| 2013:00:00 | ||||||||||||
| Balance at December 31, 2012 | $ | (54,000 | ) | $ | 3,241,000 | $ | 3,187,000 | |||||
| Amounts reclassified from accumulated other comprehensive income | 31,000 | (221,000 | ) | (190,000 | ) | |||||||
| Income tax (expense) benefit | (11,000 | ) | 65,000 | 54,000 | ||||||||
| Balance at September 30, 2013 | $ | (34,000 | ) | $ | 3,085,000 | $ | 3,051,000 | |||||
| 2014:00:00 | ||||||||||||
| Balance at December 31, 2013 | $ | (30,000 | ) | $ | 4,902,000 | $ | 4,872,000 | |||||
| Amounts reclassified from accumulated other comprehensive income | 16,000 | (336,000 | ) | (320,000 | ) | |||||||
| Income tax (expense) benefit | (6,000 | ) | 105,000 | 99,000 | ||||||||
| Balance at September 30, 2014 | $ | (20,000 | ) | $ | 4,671,000 | $ | 4,651,000 | |||||
| (A) The losses on interest rate swaps reclassified from Accumulated Other Comprehensive Income is included in interest expense on the Consolidated Statements of Income. The tax effect of losses on interest rate swaps reclassified from Accumulated Other Comprehensive Income is included in income tax expense on the Consolidated Statements of Income. | ||||||||||||
| (B) The effect of post retirement benefit items reclassified from Accumulated Other Comprehensive Income is included in total cost of sales on the Consolidated Statements of Income. These Accumulated Other Comprehensive Income components are included in the computation of net periodic benefit cost (see Note 5 Post Retirement Benefits for additional details). The tax effect of post retirement benefit items reclassified from Accumulated Other Comprehensive Income is included in income tax expense on the Consolidated Statements of Income. | ||||||||||||
Recent_Accounting_Pronouncemen
| Recent Accounting Pronouncements | 9 Months Ended |
| Sep. 30, 2014 | |
| Accounting Changes and Error Corrections [Abstract] | ' |
| Recent Accounting Pronouncements | ' |
| Recent Accounting Pronouncements | |
| In May 2014, the FASB issued ASU No. 2014-09, Revenue from Contracts with Customers (Topic 606), which supersedes the revenue recognition requirements in ASC 605, Revenue Recognition. ASU Topic 606 is based on the principle that revenue is recognized to depict the transfer of goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. The ASU Topic 606 also requires additional disclosure about the nature, amount, timing and uncertainty of revenue and cash flows arising from customer contracts, including significant judgments and changes in judgments and assets recognized from costs incurred to obtain or fulfill a contract. The effective date for ASU Topic 606 will be the first quarter of fiscal year 2017 using one of two retrospective application methods. The Company is currently assessing the transition alternatives and potential impact the pronouncement and adoption of ASU Topic 606 will have on the Company’s financial statements. Early adoption is not permitted. | |
| In August 2014, the FASB issued Accounting Standards Update (“ASU”) No. 2014-15, “Presentation of Financial Statements-Going Concern (Topic 205-40)” (“ASU 2014-15”). Under the standard, management is required to evaluate for each annual and interim reporting period whether it is a probable that the entity will not be able to meet its obligations as they become due within one year after the date that financial statements are issued, or are available to be issued, where applicable. ASU 2014-15 is effective for fiscal years, and interim periods within those years, beginning after December 15, 2016, and early adoption is permitted. Accordingly, the standard is effective for the Company on January 1, 2017. The Company does not believe that the pronouncement will have an impact on the Company's financial statements. |
Net_Income_per_Common_Share_Ta
| Net Income per Common Share (Tables) | 9 Months Ended | |||||||||||||||
| Sep. 30, 2014 | ||||||||||||||||
| Earnings Per Share [Abstract] | ' | |||||||||||||||
| Computation of basic and diluted net income per common share: | ' | |||||||||||||||
| The computation of basic and diluted net income per common share is as follows: | ||||||||||||||||
| Three Months Ended | Nine Months Ended | |||||||||||||||
| September 30, | September 30, | |||||||||||||||
| 2014 | 2013 | 2014 | 2013 | |||||||||||||
| Net income | $ | 2,428,000 | $ | 1,960,000 | $ | 7,068,000 | $ | 5,230,000 | ||||||||
| Weighted average common shares outstanding — basic | 7,540,000 | 7,257,000 | 7,492,000 | 7,186,000 | ||||||||||||
| Effect of dilutive securities | 36,000 | 161,000 | 50,000 | 225,000 | ||||||||||||
| Weighted average common and potentially issuable common shares outstanding — diluted | 7,576,000 | 7,418,000 | 7,542,000 | 7,411,000 | ||||||||||||
| Basic net income per common share | $ | 0.32 | $ | 0.27 | $ | 0.94 | $ | 0.73 | ||||||||
| Diluted net income per common share | $ | 0.32 | $ | 0.26 | $ | 0.94 | $ | 0.71 | ||||||||
Major_Customers_Tables
| Major Customers (Tables) | 9 Months Ended | |||||||||||||||
| Sep. 30, 2014 | ||||||||||||||||
| Revenue, Net [Abstract] | ' | |||||||||||||||
| Schedule of Major Customers | ' | |||||||||||||||
| The following table presents sales revenue for the above-mentioned customers for the three and nine months ended September 30, 2014 and 2013: | ||||||||||||||||
| Three Months Ended | Nine Months Ended | |||||||||||||||
| September 30, | September 30, | |||||||||||||||
| 2014 | 2013 | 2014 | 2013 | |||||||||||||
| Navistar product sales | $ | 13,104,000 | $ | 11,330,000 | $ | 39,724,000 | $ | 35,548,000 | ||||||||
| Navistar tooling sales | 25,000 | 171,000 | 75,000 | 760,000 | ||||||||||||
| Total Navistar sales | 13,129,000 | 11,501,000 | 39,799,000 | 36,308,000 | ||||||||||||
| Volvo product sales | 12,020,000 | 1,817,000 | 33,877,000 | 4,377,000 | ||||||||||||
| Volvo tooling sales | 290,000 | 54,000 | 1,438,000 | 631,000 | ||||||||||||
| Total Volvo sales | 12,310,000 | 1,871,000 | 35,315,000 | 5,008,000 | ||||||||||||
| PACCAR product sales | 9,752,000 | 12,044,000 | 26,423,000 | 33,896,000 | ||||||||||||
| PACCAR tooling sales | 90,000 | 4,843,000 | 379,000 | 7,052,000 | ||||||||||||
| Total PACCAR sales | 9,842,000 | 16,887,000 | 26,802,000 | 40,948,000 | ||||||||||||
| Yamaha product sales | 3,315,000 | 2,115,000 | 12,543,000 | 9,029,000 | ||||||||||||
| Yamaha tooling sales | — | — | — | — | ||||||||||||
| Total Yamaha sales | 3,315,000 | 2,115,000 | 12,543,000 | 9,029,000 | ||||||||||||
| Other product sales | 4,980,000 | 5,036,000 | 14,585,000 | 14,496,000 | ||||||||||||
| Other tooling sales | 15,000 | 24,000 | 1,746,000 | 688,000 | ||||||||||||
| Total other sales | 4,995,000 | 5,060,000 | 16,331,000 | 15,184,000 | ||||||||||||
| Total product sales | 43,171,000 | 32,342,000 | 127,152,000 | 97,346,000 | ||||||||||||
| Total tooling sales | 420,000 | 5,092,000 | 3,638,000 | 9,131,000 | ||||||||||||
| Total sales | $ | 43,591,000 | $ | 37,434,000 | $ | 130,790,000 | $ | 106,477,000 | ||||||||
Property_Plant_Equipment_Table
| Property, Plant & Equipment (Tables) | 9 Months Ended | |||||||
| Sep. 30, 2014 | ||||||||
| Property, Plant and Equipment [Abstract] | ' | |||||||
| Schedule of Property, Plant and Equipment [Table] | ' | |||||||
| Property, Plant & Equipment | ||||||||
| Property, plant and equipment consisted of the following at September 30, 2014 and December 31, 2013: | ||||||||
| September 30, 2014 | December 31, 2013 | |||||||
| Property, plant and equipment | $ | 118,145,000 | $ | 109,407,000 | ||||
| Accumulated depreciation | (56,767,000 | ) | (52,929,000 | ) | ||||
| Property, plant and equipment — net | $ | 61,378,000 | $ | 56,478,000 | ||||
Post_Retirement_Benefits_Table
| Post Retirement Benefits (Tables) | 9 Months Ended | |||||||||||||||
| Sep. 30, 2014 | ||||||||||||||||
| Compensation and Retirement Disclosure [Abstract] | ' | |||||||||||||||
| Schedule of Defined Benefit Plans Disclosures [Table Text Block] | ' | |||||||||||||||
| The components of expense for Core Molding Technologies’ post retirement benefit plans for the three and nine months ended September 30, 2014 and 2013 are as follows: | ||||||||||||||||
| Three Months Ended | Nine Months Ended | |||||||||||||||
| September 30, | September 30, | |||||||||||||||
| 2014 | 2013 | 2014 | 2013 | |||||||||||||
| Pension expense: | ||||||||||||||||
| Multi-employer plan contributions | $ | 178,000 | $ | 112,000 | $ | 514,000 | $ | 327,000 | ||||||||
| Defined contribution plan contributions | 169,000 | 147,000 | 530,000 | 432,000 | ||||||||||||
| Total pension expense | 347,000 | 259,000 | 1,044,000 | 759,000 | ||||||||||||
| Health and life insurance: | ||||||||||||||||
| Interest cost | 69,000 | 83,000 | 207,000 | 249,000 | ||||||||||||
| Amortization of prior service costs | (124,000 | ) | (124,000 | ) | (372,000 | ) | (372,000 | ) | ||||||||
| Amortization of net loss | 12,000 | 51,000 | 36,000 | 151,000 | ||||||||||||
| Net periodic benefit cost | (43,000 | ) | 10,000 | (129,000 | ) | 28,000 | ||||||||||
| Total post retirement benefits expense | $ | 304,000 | $ | 269,000 | $ | 915,000 | $ | 787,000 | ||||||||
Debt_Tables
| Debt (Tables) | 9 Months Ended | |||||||
| Sep. 30, 2014 | ||||||||
| Table Text Block Supplemental [Abstract] | ' | |||||||
| Schedule of Debt | ' | |||||||
| Debt consists of the following at: | ||||||||
| September 30, | December 31, | |||||||
| 2014 | 2013 | |||||||
| Capex loan payable to a bank, interest at a variable rate (1.75% at September 30, 2014 and 1.77% at December 31, 2013) with monthly payments of interest and principal through May 2016. | $ | 2,857,000 | $ | 4,143,000 | ||||
| Mexican loan payable to a bank, interest at a variable rate (1.73% at December 31, 2013) with annual principal and monthly interest payments through January 2014. Paid in full January 2014. | — | 1,600,000 | ||||||
| Revolving Line of Credit | 6,365,000 | — | ||||||
| Total | 9,222,000 | 5,743,000 | ||||||
| Less current portion | (8,079,000 | ) | (3,314,000 | ) | ||||
| Long-term debt | $ | 1,143,000 | $ | 2,429,000 | ||||
Stock_Based_Compensation_Table
| Stock Based Compensation (Tables) | 9 Months Ended | ||||||
| Sep. 30, 2014 | |||||||
| Share-based Compensation [Abstract] | ' | ||||||
| Schedule of Share-based Compensation, Stock Options, Activity [Table text block] | ' | ||||||
| The following summarizes the activity relating to stock options under the plans mentioned above for the nine months ended September 30, 2014: | |||||||
| Number | Weighted | ||||||
| of | Average | ||||||
| Options | Exercise Price | ||||||
| Outstanding at December 31, 2013 | 227,750 | $ | 3.57 | ||||
| Exercised | (224,050 | ) | 3.54 | ||||
| Granted | — | — | |||||
| Forfeited | — | — | |||||
| Outstanding at September 30, 2014 | 3,700 | $ | 5.71 | ||||
| Exercisable at September 30, 2014 | 3,700 | $ | 5.71 | ||||
| Schedule of Share-based Compensation, Restricted Stock and Restricted Stock Units Activity [Table Text Block] | ' | ||||||
| The following summarizes the status of Restricted Stock and changes during the nine months ended September 30, 2014: | |||||||
| Number | Weighted | ||||||
| of | Average | ||||||
| Shares | Grant Date | ||||||
| Fair Value | |||||||
| Unvested balance at December 31, 2013 | 98,281 | $ | 8.91 | ||||
| Granted | 81,763 | 12.04 | |||||
| Vested | (53,884 | ) | 9.81 | ||||
| Forfeited | — | — | |||||
| Unvested balance at September 30, 2014 | 126,160 | $ | 10.75 | ||||
Fair_Value_of_Financial_Instru1
| Fair Value of Financial Instruments (Tables) | 9 Months Ended | ||||||||||
| Sep. 30, 2014 | |||||||||||
| Fair Value Disclosures [Abstract] | ' | ||||||||||
| Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] | ' | ||||||||||
| The following table presents financial liabilities measured and recorded at fair value on the Company’s Consolidated Balance Sheets on a recurring basis and their level within the fair value hierarchy as of September 30, 2014 and December 31, 2013: | |||||||||||
| (Level 2) | |||||||||||
| Balance Sheet | September 30, | December 31, | |||||||||
| Location | 2014 Fair Value | 2013 Fair Value | |||||||||
| Derivatives not designated as hedging instruments Interest rate risk activities | Interest rate swaps | $ | 50,000 | $ | 103,000 | ||||||
| Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Table Text Block] | ' | ||||||||||
| The effect of derivative instruments on the Consolidated Statements of Income was as follows: | |||||||||||
| Derivatives Not Designated as Hedging Instruments | Location of (Gain) Loss | Amount of Realized/Unrealized (Gain) Loss Recognized in Income on Derivatives | |||||||||
| Recognized | |||||||||||
| in Income on Derivative | |||||||||||
| Three months ended | September 30, | September 30, | |||||||||
| 2014 | 2013 | ||||||||||
| Interest rate swaps | Interest expense | $ | (12,000 | ) | $ | (14,000 | ) | ||||
| Nine Months Ended | |||||||||||
| Interest rate swaps | Interest expense | $ | (37,000 | ) | $ | (57,000 | ) | ||||
Accumulated_Other_Comprehensiv1
| Accumulated Other Comprehensive Income (Tables) | 9 Months Ended | |||||||||||
| Sep. 30, 2014 | ||||||||||||
| Accumulated Other Comprehensive Income [Abstract] | ' | |||||||||||
| Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] | ' | |||||||||||
| The following table presents changes in Accumulated Other Comprehensive Income by component, net of tax, for the nine months ended September 30, 2014 and 2013: | ||||||||||||
| Losses on Interest Rate Swaps(A) | Post Retirement Benefit Plan Items(B) | Total | ||||||||||
| 2013:00:00 | ||||||||||||
| Balance at December 31, 2012 | $ | (54,000 | ) | $ | 3,241,000 | $ | 3,187,000 | |||||
| Amounts reclassified from accumulated other comprehensive income | 31,000 | (221,000 | ) | (190,000 | ) | |||||||
| Income tax (expense) benefit | (11,000 | ) | 65,000 | 54,000 | ||||||||
| Balance at September 30, 2013 | $ | (34,000 | ) | $ | 3,085,000 | $ | 3,051,000 | |||||
| 2014:00:00 | ||||||||||||
| Balance at December 31, 2013 | $ | (30,000 | ) | $ | 4,902,000 | $ | 4,872,000 | |||||
| Amounts reclassified from accumulated other comprehensive income | 16,000 | (336,000 | ) | (320,000 | ) | |||||||
| Income tax (expense) benefit | (6,000 | ) | 105,000 | 99,000 | ||||||||
| Balance at September 30, 2014 | $ | (20,000 | ) | $ | 4,671,000 | $ | 4,651,000 | |||||
| (A) The losses on interest rate swaps reclassified from Accumulated Other Comprehensive Income is included in interest expense on the Consolidated Statements of Income. The tax effect of losses on interest rate swaps reclassified from Accumulated Other Comprehensive Income is included in income tax expense on the Consolidated Statements of Income. | ||||||||||||
| (B) The effect of post retirement benefit items reclassified from Accumulated Other Comprehensive Income is included in total cost of sales on the Consolidated Statements of Income. These Accumulated Other Comprehensive Income components are included in the computation of net periodic benefit cost (see Note 5 Post Retirement Benefits for additional details). The tax effect of post retirement benefit items reclassified from Accumulated Other Comprehensive Income is included in income tax expense on the Consolidated Statements of Income. | ||||||||||||
Net_Income_per_Common_Share_De
| Net Income per Common Share (Details) (USD $) | 3 Months Ended | 9 Months Ended | ||
| Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013 | |
| Earnings Per Share [Abstract] | ' | ' | ' | ' |
| Net income | $2,428,000 | $1,960,000 | $7,068,000 | $5,230,000 |
| Weighted average common shares outstanding b basic | 7,540,000 | 7,257,000 | 7,492,000 | 7,186,000 |
| Effect of dilutive securities | $36,000 | $161,000 | $50,000 | $225,000 |
| Weighted average common and potentially issuable common shares outstanding b diluted | 7,576,000 | 7,418,000 | 7,542,000 | 7,411,000 |
| Basic net income per common share (USD per share) | $0.32 | $0.27 | $0.94 | $0.73 |
| Diluted net income per common share (USD per share) | $0.32 | $0.26 | $0.94 | $0.71 |
Major_Customers_Details
| Major Customers (Details) (USD $) | 3 Months Ended | 9 Months Ended | ||
| Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013 | |
| Revenue, Major Customer [Line Items] | ' | ' | ' | ' |
| Total sales | $43,591,000 | $37,434,000 | $130,790,000 | $106,477,000 |
| Total product sales | 43,171,000 | 32,342,000 | 127,152,000 | 97,346,000 |
| Total tooling sales | 420,000 | 5,092,000 | 3,638,000 | 9,131,000 |
| Navistar [Member] | ' | ' | ' | ' |
| Revenue, Major Customer [Line Items] | ' | ' | ' | ' |
| Total sales | 13,129,000 | 11,501,000 | 39,799,000 | 36,308,000 |
| Volvo [Member] | ' | ' | ' | ' |
| Revenue, Major Customer [Line Items] | ' | ' | ' | ' |
| Total sales | 12,310,000 | 1,871,000 | 35,315,000 | 5,008,000 |
| Paccar [Member] | ' | ' | ' | ' |
| Revenue, Major Customer [Line Items] | ' | ' | ' | ' |
| Total sales | 9,842,000 | 16,887,000 | 26,802,000 | 40,948,000 |
| Yamaha [Member] | ' | ' | ' | ' |
| Revenue, Major Customer [Line Items] | ' | ' | ' | ' |
| Total sales | 3,315,000 | 2,115,000 | 12,543,000 | 9,029,000 |
| Other Customers [Member] | ' | ' | ' | ' |
| Revenue, Major Customer [Line Items] | ' | ' | ' | ' |
| Total sales | 4,995,000 | 5,060,000 | 16,331,000 | 15,184,000 |
| Product Sales [Member] | Navistar [Member] | ' | ' | ' | ' |
| Revenue, Major Customer [Line Items] | ' | ' | ' | ' |
| Total sales | 13,104,000 | 11,330,000 | 39,724,000 | 35,548,000 |
| Product Sales [Member] | Volvo [Member] | ' | ' | ' | ' |
| Revenue, Major Customer [Line Items] | ' | ' | ' | ' |
| Total sales | 12,020,000 | 1,817,000 | 33,877,000 | 4,377,000 |
| Product Sales [Member] | Paccar [Member] | ' | ' | ' | ' |
| Revenue, Major Customer [Line Items] | ' | ' | ' | ' |
| Total sales | 9,752,000 | 12,044,000 | 26,423,000 | 33,896,000 |
| Product Sales [Member] | Yamaha [Member] | ' | ' | ' | ' |
| Revenue, Major Customer [Line Items] | ' | ' | ' | ' |
| Total sales | 3,315,000 | 2,115,000 | 12,543,000 | 9,029,000 |
| Product Sales [Member] | Other Customers [Member] | ' | ' | ' | ' |
| Revenue, Major Customer [Line Items] | ' | ' | ' | ' |
| Total sales | 4,980,000 | 5,036,000 | 14,585,000 | 14,496,000 |
| Tooling Sales [Member] | Navistar [Member] | ' | ' | ' | ' |
| Revenue, Major Customer [Line Items] | ' | ' | ' | ' |
| Total sales | 25,000 | 171,000 | 75,000 | 760,000 |
| Tooling Sales [Member] | Volvo [Member] | ' | ' | ' | ' |
| Revenue, Major Customer [Line Items] | ' | ' | ' | ' |
| Total sales | 290,000 | 54,000 | 1,438,000 | 631,000 |
| Tooling Sales [Member] | Paccar [Member] | ' | ' | ' | ' |
| Revenue, Major Customer [Line Items] | ' | ' | ' | ' |
| Total sales | 90,000 | 4,843,000 | 379,000 | 7,052,000 |
| Tooling Sales [Member] | Yamaha [Member] | ' | ' | ' | ' |
| Revenue, Major Customer [Line Items] | ' | ' | ' | ' |
| Total sales | 0 | 0 | 0 | 0 |
| Tooling Sales [Member] | Other Customers [Member] | ' | ' | ' | ' |
| Revenue, Major Customer [Line Items] | ' | ' | ' | ' |
| Total sales | $15,000 | $24,000 | $1,746,000 | $688,000 |
Property_Plant_Equipment_Detai
| Property, Plant & Equipment (Details) (USD $) | 9 Months Ended | ||
| Sep. 30, 2014 | Sep. 30, 2013 | Dec. 31, 2013 | |
| Property, Plant and Equipment [Abstract] | ' | ' | ' |
| Property, plant and equipment | $118,145,000 | ' | $109,407,000 |
| Accumulated depreciation | -56,767,000 | ' | -52,929,000 |
| Property, plant and equipment b net | 61,378,000 | ' | 56,478,000 |
| Capital expenditures in progress | 4,037,000 | ' | 5,953,000 |
| Capitalized interest expense | 66,000 | 37,000 | ' |
| Commitments for capital expenditures in progress | $1,053,000 | ' | $4,629,000 |
Post_Retirement_Benefits_Detai
| Post Retirement Benefits (Details) (USD $) | 3 Months Ended | 9 Months Ended | 3 Months Ended | ||
| Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2012 | Dec. 31, 2014 | |
| Scenario, Forecast [Member] | |||||
| Pension, health and life insurance expense: | ' | ' | ' | ' | ' |
| Multi-employer plan contributions | $178,000 | $112,000 | $514,000 | $327,000 | ' |
| Defined contribution plan contributions | 169,000 | 147,000 | 530,000 | 432,000 | ' |
| Total pension expense | 347,000 | 259,000 | 1,044,000 | 759,000 | ' |
| Interest cost | 69,000 | 83,000 | 207,000 | 249,000 | ' |
| Amortization of prior service costs | -124,000 | -124,000 | -372,000 | -372,000 | ' |
| Amortization of net loss | 12,000 | 51,000 | 36,000 | 151,000 | ' |
| Net periodic benefit cost | -43,000 | 10,000 | -129,000 | 28,000 | ' |
| Total post retirement benefits expense | 304,000 | 269,000 | 915,000 | 787,000 | ' |
| Payments to pension plans | ' | ' | 1,006,000 | ' | ' |
| Payments for post retirement healthcare and life insurance | ' | ' | 474,000 | ' | ' |
| Document Fiscal Year Focus | ' | ' | '2014 | ' | ' |
| Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] | ' | ' | ' | ' | ' |
| Expected payments to pension plans | ' | ' | ' | ' | 277,000 |
| Expected future payments for other post retirement benefits | ' | ' | ' | ' | $158,000 |
Debt_Details
| Debt (Details) (USD $) | 0 Months Ended | 3 Months Ended | 9 Months Ended | 9 Months Ended | 9 Months Ended | 9 Months Ended | 9 Months Ended | ||||||||||||||||
| Mar. 27, 2014 | Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013 | Dec. 31, 2013 | Sep. 30, 2014 | Sep. 30, 2014 | Dec. 31, 2009 | Sep. 30, 2014 | Sep. 30, 2014 | Dec. 31, 2013 | Sep. 30, 2014 | Mar. 31, 2009 | Sep. 30, 2014 | Mar. 27, 2014 | Mar. 26, 2014 | Dec. 31, 2013 | Sep. 30, 2014 | Dec. 31, 2013 | Sep. 30, 2014 | Dec. 31, 2013 | Mar. 27, 2014 | |
| Industrial Development Revenue Bond Swap Agreement [Member] | Industrial Development Revenue Bond Swap Agreement [Member] | Industrial Development Revenue Bond Swap Agreement [Member] | Industrial Development Revenue Bond Swap Agreement [Member] | Capex Loan Swap Agreement [Member] | Capex Loan Swap Agreement [Member] | Capex Loan Swap Agreement [Member] | Capex Loan Swap Agreement [Member] | Revolving Credit Facility [Member] | Revolving Credit Facility [Member] | Revolving Credit Facility [Member] | Revolving Credit Facility [Member] | Capex Loan [Member] | Capex Loan [Member] | Mexican Loan [Member] | Mexican Loan [Member] | Mexican Expansion Revolving Loan [Member] | |||||||
| Accumulated Other-than-Temporary Impairment [Member] | Accumulated Other-than-Temporary Impairment [Member] | Commercial Paper Rate, 30 Days [Member] | Accumulated Other-than-Temporary Impairment [Member] | Accumulated Other-than-Temporary Impairment [Member] | Revolving Credit Facility [Member] | ||||||||||||||||||
| Debt, Long-term and Short-term, Combined Amount [Abstract] | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
| Debt | ' | $9,222,000 | ' | $9,222,000 | ' | $5,743,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | $2,857,000 | $4,143,000 | $0 | $1,600,000 | ' |
| Revolving Line of Credit | ' | 6,365,000 | ' | 6,365,000 | ' | 0 | ' | ' | ' | ' | ' | ' | ' | ' | 6,365,000 | ' | ' | 0 | ' | ' | ' | ' | ' |
| Less current portion | ' | -8,079,000 | ' | -8,079,000 | ' | -3,314,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
| Long-term debt | ' | 1,143,000 | ' | 1,143,000 | ' | 2,429,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
| Debt Instrument, Interest Rate, Stated Percentage | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 1.75% | 1.75% | 1.77% | ' | 1.73% | ' |
| Debt - face amount | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 12,000,000 | ' | 8,000,000 | ' | ' |
| Maximum borrowing capacity | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 18,000,000 | 8,000,000 | ' | ' | ' | ' | ' | ' |
| Letter of credit - original face amount | ' | 3,332,000 | ' | 3,332,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
| Percent of subsidiary stock not security for financing | ' | 65.00% | ' | 65.00% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
| Capital Improvements Excluded From Fixed Charge | 18,000,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
| Line of Credit Facility, Remaining Borrowing Capacity | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 10,000,000 |
| Debt Instrument, Description of Variable Rate Basis | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 'daily LIBOR | ' | ' | ' | ' | ' | ' | ' | ' |
| Debt Instrument, Basis Spread on Variable Rate | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 1.60% | ' | ' | ' | ' | ' | ' | ' | ' |
| Derivative, Fixed Interest Rate | ' | ' | ' | ' | ' | ' | 4.89% | ' | ' | ' | 2.30% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
| Variable Rate Receivable | ' | ' | ' | ' | ' | ' | ' | ' | ' | 76.00% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
| Derivative, Description of Variable Rate Basis | ' | ' | ' | ' | ' | ' | ' | ' | ' | '76% of the 30-day commercial paper rate | 'LIBOR | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
| Pre-Tax Loss | ' | ' | ' | ' | ' | ' | ' | ' | 200,000 | ' | ' | ' | ' | 146,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' |
| Amortization of Pre-Tax Loss to Interest Expense, Before Tax, Monthly | ' | ' | ' | ' | ' | ' | ' | 5,000 | ' | ' | ' | ' | 2,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
| Amortization of Pre-Tax Loss to Interest Expense, Net of Tax, Monthly | ' | ' | ' | ' | ' | ' | ' | 3,000 | ' | ' | ' | ' | 1,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
| Description of Reclassification of Cash Flow Hedge Gain (Loss) | ' | ' | ' | ' | ' | ' | 'The pre-tax loss previously recognized in Accumulated Other Comprehensive Income, totaling $200,000 as of DecemberB 31, 2009, was amortized as an increase to interest expense of $5,000 per month, or $3,000 net of tax, over the remaining term of the interest rate swap agreement. | ' | ' | ' | 'The pre-tax loss previously recognized in Accumulated Other Comprehensive Income, totaling $146,000 as of MarchB 31, 2009, is being amortized as an increase to interest expense of approximately $2,000 per month, or $1,000 net of tax, over the remaining term of the interest rate swap agreement. | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
| Derivative, Variable Interest Rate | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 0.15% | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
| Interest rate swaps | ' | 50,000 | ' | 50,000 | ' | 103,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
| Interest income (loss) for mark-to-market adjustment of swap fair value | ' | 17,000 | 19,000 | 53,000 | 81,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
| Notional amount | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | 2,857,000 | 4,143,000 | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
| Interest expense for settlements related to swaps | ' | ($16,000) | ($25,000) | ($56,000) | ($87,000) | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' | ' |
Income_Taxes_Details
| Income Taxes (Details) (USD $) | 3 Months Ended | 9 Months Ended | ||
| Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013 | |
| Income Tax Disclosure [Abstract] | ' | ' | ' | ' |
| Deferred tax assets | $1,911,000 | ' | $1,911,000 | ' |
| Income tax expense (benefit) | $1,249,000 | $943,000 | $3,526,000 | $2,652,000 |
| Effective income tax rate | ' | ' | 33.00% | 34.00% |
Stock_Based_Compensation_Detai
| Stock Based Compensation (Details) (USD $) | 3 Months Ended | 9 Months Ended | |||
| Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013 | Dec. 31, 2013 | |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ' | ' | ' | ' | ' |
| Number of shares authorized | 3,000,000 | ' | 3,000,000 | ' | ' |
| Tax benefit recorded to additional paid in capital | ' | ' | $285,000 | ' | ' |
| Restricted Stock [Member] | ' | ' | ' | ' | ' |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ' | ' | ' | ' | ' |
| Surrendered shares for tax withholding | ' | ' | 14,429 | 36,329 | ' |
| Compensation costs | 135,000 | 86,000 | 439,000 | 324,000 | ' |
| Tax benefit recorded to additional paid in capital | ' | ' | 58,000 | ' | ' |
| Unrecognized compensation expense | 1,080,000 | 594,000 | 1,080,000 | 594,000 | ' |
| Expected recognition period | ' | ' | '1 year 7 months 6 days | ' | ' |
| Restricted Stock Rollforward, Shares | ' | ' | ' | ' | ' |
| Unvested balance at December 31, 2013 | ' | ' | 98,281 | ' | ' |
| Granted | ' | ' | 81,763 | ' | ' |
| Vested | ' | ' | -53,884 | ' | ' |
| Forfeited | ' | ' | 0 | ' | ' |
| Unvested balance at Period End | 126,160 | ' | 126,160 | ' | ' |
| Weighted Average Grant Date Fair Value of Restricted Stock | ' | ' | ' | ' | ' |
| Unvested balance at December 31, 2013, USD per share | $10.75 | ' | $10.75 | ' | $8.91 |
| Granted, USD per share | ' | ' | $12.04 | ' | ' |
| Vested, USD per share | ' | ' | $9.81 | ' | ' |
| Forfeited, USD per share | ' | ' | $0 | ' | ' |
| Unvested balance at Period End, USD per share | $10.75 | ' | $10.75 | ' | $8.91 |
| Stock Options [Member] | ' | ' | ' | ' | ' |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ' | ' | ' | ' | ' |
| Surrendered shares for tax withholding | ' | ' | 38,690 | ' | ' |
| Tax benefit related to disqualified dispositions | ' | ' | 311,000 | ' | ' |
| Credit to income tax expense | ' | ' | 84,000 | ' | ' |
| Tax benefit recorded to additional paid in capital | ' | ' | 227,000 | ' | ' |
| Stock Options Rollforward, Shares | ' | ' | ' | ' | ' |
| Outstanding at December 31, 2013 | ' | ' | 227,750 | ' | ' |
| Exercised | ' | ' | -224,050 | ' | ' |
| Granted | ' | ' | 0 | ' | ' |
| Forfeited | ' | ' | 0 | ' | ' |
| Outstanding at Period End | 3,700 | ' | 3,700 | ' | ' |
| Exercisable at Period End | 3,700 | ' | 3,700 | ' | ' |
| Weighted Average Exercise Price of Stock Options | ' | ' | ' | ' | ' |
| Outstanding at December 31, 2013, USD per share | ' | ' | $3.57 | ' | ' |
| Exercised, USD per share | ' | ' | $3.54 | ' | ' |
| Granted, USD per share | ' | ' | $0 | ' | ' |
| Forfeited, USD per share | ' | ' | $0 | ' | ' |
| Outstanding at Period End, USD per share | $5.71 | ' | $5.71 | ' | ' |
| Exercisable at Period End, USD per share | $5.71 | ' | $5.71 | ' | ' |
| Stock Options [Member] | Selling, General and Administrative Expenses [Member] | ' | ' | ' | ' | ' |
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ' | ' | ' | ' | ' |
| Compensation costs | ' | $5,000 | $0 | ' | ' |
Fair_Value_of_Financial_Instru2
| Fair Value of Financial Instruments (Details) (USD $) | 3 Months Ended | 9 Months Ended | |||
| Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2012 | Dec. 31, 2013 | |
| Fair Value Disclosures [Abstract] | ' | ' | ' | ' | ' |
| Derivatives not designated as hedging instruments Interest rate risk activities | $50,000 | ' | $50,000 | ' | $103,000 |
| Amount of Realized/Unrealized Gain (Loss) Recognized in Income on Derivatives | -12,000 | -14,000 | -37,000 | -57,000 | ' |
| Amortization of gain (loss) on discontinued hedges during next 12 months | 21,000 | ' | 21,000 | ' | ' |
| Amortization of gain (loss) on discontinued hedges during next 12 months, net of tax | $14,000 | ' | $14,000 | ' | ' |
Accumulated_Other_Comprehensiv2
| Accumulated Other Comprehensive Income (Details) (USD $) | 3 Months Ended | 9 Months Ended | |||||
| Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013 | Dec. 31, 2013 | Mar. 31, 2013 | Dec. 31, 2012 | |
| Accumulated Other Comprehensive Income (Loss), Net of Tax | $4,651,000 | ' | $4,651,000 | ' | $4,872,000 | $3,051,000 | $3,187,000 |
| Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, before Tax | -6,000 | -5,000 | -16,000 | -31,000 | ' | ' | ' |
| Amounts reclassified from accumulated other comprehensive income, before tax | -320,000 | -190,000 | ' | ' | ' | ' | ' |
| Other Comprehensive Income (Loss), Tax | 99,000 | 54,000 | ' | ' | ' | ' | ' |
| Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI on Derivatives, Tax | -2,000 | -2,000 | -6,000 | -11,000 | ' | ' | ' |
| Other Comprehensive (Income) Loss, Pension and Other Postretirement Benefit Plans, Tax | 35,000 | 22,000 | 105,000 | 65,000 | ' | ' | ' |
| Derivative [Member] | ' | ' | ' | ' | ' | ' | ' |
| Accumulated Other Comprehensive Income (Loss), Net of Tax | -20,000 | ' | -20,000 | ' | -30,000 | -34,000 | -54,000 |
| Derivative Instruments, Loss Reclassified from Accumulated OCI into Income, Effective Portion | ' | 31,000 | ' | ' | ' | ' | ' |
| Other Comprehensive Income (Loss), Tax | ' | -11,000 | ' | ' | ' | ' | ' |
| Other Postretirement Benefit Plans, Defined Benefit [Member] | ' | ' | ' | ' | ' | ' | ' |
| Accumulated Other Comprehensive Income (Loss), Net of Tax | 4,671,000 | ' | 4,671,000 | ' | 4,902,000 | 3,085,000 | 3,241,000 |
| Other Comprehensive Income (Loss), Reclassification, Pension and Other Postretirement Benefit Plans, Net Gain (Loss) Recognized in Net Periodic Benefit Cost, before Tax | -336,000 | -221,000 | ' | ' | ' | ' | ' |
| Other Comprehensive Income (Loss), Tax | ' | $65,000 | ' | ' | ' | ' | ' |