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Corporate Borrowings - Indebtedness Outstanding Summary (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017
Debt Instrument [Line Items] |  |
Long-term debt, gross | $ 32,594 | $ 25,264
Unamortized loan fees | (580) | (710)
Total indebtedness outstanding, net | 32,014 | 24,554
Less current maturities of long-term debt | (386) | (372)
Long-term debt | 31,628 | 24,182
Credit Agreement |  |
Debt Instrument [Line Items] |  |
Unamortized loan fees | $ (412) |
Credit Agreement, interest rate | 3.90% |
Credit Agreement | Revolver | Credit Agreement |  |
Debt Instrument [Line Items] |  |
Long-term debt, gross | $ 11,000 | 3,298
Credit Agreement, interest rate | 3.889% |
Secured Debt | Secured Promissory Note |  |
Debt Instrument [Line Items] |  |
Long-term debt, gross | $ 1,594 | 1,966
Interest rate | 3.71% |
Secured Debt | Note Purchase Agreement |  |
Debt Instrument [Line Items] |  |
Long-term debt, gross | $ 20,000 | $ 20,000
Capital Lease interest rate | 3.53% |

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