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Debt and Leases - Debt (Details) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015
Debt: |  |
Long-term Debt | $ 9,750,000 | $ 13,464,000
Current portion of long-term debt | (3,000,000) | (3,714,000)
Long-term debt | 6,750,000 | 9,750,000
Loans payable | Capex loan |  |
Debt: |  |
Long-term Debt | $ 0 | $ 714,000
Stated interest rate | 0.00% | 2.04%
Repayment term | 7 years |
Debt instrument, face amount | $ 12,000,000 |
Debt Instrument, Description of Variable Rate Basis | 30 day LIBOR |
Basis spread on variable rate | 1.60% |
Loans payable | Term Loan [Member] |  |
Debt: |  |
Long-term Debt | $ 9,750,000 | $ 12,750,000
Stated interest rate | 2.55% | 2.24%
Repayment term | 5 years |
Debt instrument, face amount | $ 15,500,000 |
Debt Instrument, Description of Variable Rate Basis | 30 day LIBOR |
Basis spread on variable rate | 1.80% |
Loans payable | Mexican Loan [Member] |  |
Debt: |  |
Debt instrument, face amount | $ 8,000,000 |
Debt Instrument, Description of Variable Rate Basis |  | LIBOR
Line of credit |  |
Debt: |  |
Percent of subsidiary stock not security for financing | 65.00% |
Debt Instrument, Description of Variable Rate Basis | daily LIBOR |
Line of credit | Revolving line of credit |  |
Debt: |  |
Long-term Debt | $ 0 | $ 0
Line of credit facility, maximum borrowing capacity | $ 18,000,000 |
Basis spread on variable rate | 1.60% |

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- Definition Amount of short-term debt and current maturity of long-term debt and capital lease obligations due within one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19,20) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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