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v3.5.0.2

Debt (Details Textual) | 9 Months Ended |  |
--- | --- | --- | ---
Sep. 30, 2016 USD ($) Installment | Mar. 25, 2016 USD ($) | Dec. 31, 2015 USD ($)
Long-term Debt | $ 181,564,000 |  | $ 146,098,000
Percentage of outstanding borrowings in which the associated interest rate risk hedged | 75.00% |  |
LIBOR rate |  |  |
Effective interest rate percentage | 0.98% |  |
Credit Agreement [Member] | Revolving Credit Facility [Member] |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  | $ 40,000,000 |
Amended Credit Agreement [Member] |  |  |
Debt, Weighted Average Interest Rate | 3.02% |  |
Amended Credit Agreement [Member] | Maximum [Member] |  |  |
Beneficial Ownership Threshold | 30.00% |  |
Amended Credit Agreement [Member] | Federal Funds Effective Swap Rate [Member] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 0.50% |  |
Amended Credit Agreement [Member] | Eurodollar [Member] |  |  |
Debt Instrument, Basis Spread on Variable Rate | 1.00% |  |
Amended Credit Agreement [Member] | Revolving Credit Facility [Member] |  |  |
Line of Credit Facility, Maximum Borrowing Capacity | $ 50,000,000 | 50,000,000 |
Long-term Debt | $ 25,000,000 |  |
Amended Credit Agreement [Member] | Revolving Credit Facility [Member] | Minimum [Member] |  |  |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage | 0.25% |  |
Amended Credit Agreement [Member] | Revolving Credit Facility [Member] | Maximum [Member] |  |  |
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage | 0.30% |  |
Amended Credit Agreement [Member] | Incremental Term Loans [Member] |  |  |
Debt Instrument, Face Amount |  | $ 40,000,000 |
Amended Credit Agreement [Member] | Term Loan [Member] |  |  |
Debt Instrument, Face Amount | $ 160,000,000 |  |
Long-term Debt | $ 153,000,000 |  |
Amended Credit Agreement [Member] | Term Loan [Member] | Revolving Credit Facility [Member] |  |  |
Debt Instrument, Maturity Date | Jul. 31, 2020 |  |
Amended Credit Agreement [Member] | Loans Payable |  |  |
Debt Instrument, Maturity Date | Jul. 31, 2020 |  |
Amended Credit Agreement [Member] | Loans Payable | Debt Instrument, Redemption, Period One |  |  |
Number Of Quarterly Payment Of Term Loan | Installment | 2 |  |
Debt Instrument, Periodic Payment | $ 1,500,000 |  |
Debt Instrument, Commencement Date of Quarterly Payments | Dec. 31, 2015 |  |
Amended Credit Agreement [Member] | Loans Payable | Debt Instrument, Redemption, Period Two |  |  |
Number Of Quarterly Payment Of Term Loan | Installment | 2 |  |
Debt Instrument, Periodic Payment | $ 2,000,000 |  |
Debt Instrument, Commencement Date of Quarterly Payments | Jun. 30, 2016 |  |
Amended Credit Agreement [Member] | Loans Payable | Debt Instrument, Redemption, Period Three |  |  |
Number Of Quarterly Payment Of Term Loan | Installment | 8 |  |
Debt Instrument, Periodic Payment | $ 3,000,000 |  |
Debt Instrument, Commencement Date of Quarterly Payments | Dec. 31, 2016 |  |
Amended Credit Agreement [Member] | Loans Payable | Debt Instrument, Redemption, Period Four |  |  |
Number Of Quarterly Payment Of Term Loan | Installment | 4 |  |
Debt Instrument, Periodic Payment | $ 4,000,000 |  |
Debt Instrument, Commencement Date of Quarterly Payments | Dec. 31, 2018 |  |
Amended Credit Agreement [Member] | Loans Payable | Debt Instrument, Redemption, Period Five |  |  |
Number Of Quarterly Payment Of Term Loan | Installment | 3 |  |
Debt Instrument, Periodic Payment | $ 6,000,000 |  |
Debt Instrument, Commencement Date of Quarterly Payments | Dec. 31, 2019 |  |
Amended Credit Agreement [Member] | Loans Payable | Debt Instrument, Redemption Period, Period Six [Member] |  |  |
Debt Instrument, Periodic Payment | $ 95,000,000 |  |

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