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Inventories (Tables) | 9 Months Ended
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Sep. 30, 2014
Inventory Disclosure [Abstract] |
Inventories |
| September 30, 2014 |  | December 31, 2013
| (in thousands)
Raw materials | $ | 33,694 |  |  | $ | 28,592 |
Work in process | 2,249 |  |  | 2,286 |
Finished goods | 2,099 |  |  | 1,841 |
| 38,042 |  |  | 32,719 |
Less: Allowance for excess and obsolete inventories | (802 | ) |  | (579 | )
Total, net | $ | 37,240 |  |  | $ | 32,140 |
Inventories (Allowance) | The related changes in the allowance for excess and obsolete inventories account are as follows:
| Three months ended |  | Nine months ended
| September 30, 2014 |  | September 30, 2013 |  | September 30, 2014 |  | September 30, 2013
Allowance for excess and obsolete inventories: | (in thousands) |  |  |  |
Balance, beginning of period | $ | 735 |  |  | $ | 537 |  |  | $ | 579 |  |  | $ | 363 |
Provisions for excess and obsolete inventories | 67 |  |  | 267 |  |  | 223 |  |  | 468 |
Inventories written off | — |  |  | — |  |  | — |  |  | (27 | )
Balance, end of period | $ | 802 |  |  | $ | 804 |  |  | $ | 802 |  |  | $ | 804 |

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- Definition Tabular disclosure of the carrying amount as of the balance sheet date of merchandise, goods, commodities, or supplies held for future sale or to be used in manufacturing, servicing or production process. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 2 -Paragraph 6 -Subparagraph a,b,c -Article 5 + Details
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