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Accounts Receivable | 12 Months Ended
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Dec. 31, 2016
Accounts Receivable [Abstract] |
Accounts Receivable | ﻿ Note 5. ﻿ Accounts Receivable ﻿ Accounts receivable at December 31, 2016 and 2015 are summarized as follows: ﻿
﻿ |  |  |  |
﻿ |  |
﻿ |  | 2016 |  | 2015
﻿ |  |
﻿Trade | $ | 64,707 | $ | 79,100
﻿Allowance for doubtful accounts |  | (1,417) |  | (1,485)
﻿ |  | 63,290 |  | 77,615
﻿Other |  | 3,342 |  | 872
﻿ | $ | 66,632 | $ | 78,487
﻿ The Company’s customers are principally in the transportation and energy infrastructure sectors. At December 31, 2016 and 2015, trade receivables, net of allowance for doubtful accounts, from customers were as follows: ﻿
﻿ |  |  |  |
﻿ |  |  |  |
﻿ |  | 2016 |  | 2015
﻿ |  |
﻿Rail Products and Services | $ | 29,552 | $ | 43,155
﻿Construction Products |  | 20,531 |  | 20,489
﻿Tubular and Energy Services |  | 13,207 |  | 13,971
﻿ | $ | 63,290 | $ | 77,615
﻿ ﻿ Credit is extended based upon an evaluation of the customer’s financial condition and, while collateral is not required, the Company periodically receives surety bonds that guarantee payment. Credit terms are consistent with industry standards and practices.

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- Definition The entire disclosure for claims held for amounts due a entity, excluding financing receivables. Examples include, but are not limited to, trade accounts receivables, notes receivables, loans receivables. Includes disclosure for allowance for credit losses. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5066-111524 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(4)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 946 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-04(6)) -URI http://asc.fasb.org/extlink&oid=6488278&loc=d3e603758-122996 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(3)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5162-111524 Reference 6: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(5)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 7: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(7)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 8: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5074-111524 + Details
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