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Corporate Borrowings - Indebtedness Outstanding Summary (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Long-term debt, gross	$ 41,508	$ 32,594
Unamortized loan fees	(448)	(580)
Total indebtedness outstanding, net	41,060	32,014
Less current maturities of long-term debt	(401)	(386)
Long-term debt	40,659	31,628
Credit Agreement | Revolver
Debt Instrument [Line Items]
Long-term debt, gross	$ 300	11,000
Credit Agreement, interest rate	3.19%
Senior Notes | Secured Promissory Note
Debt Instrument [Line Items]
Senior secured notes, stated interest rate	3.71%
Secured Debt | Secured Promissory Note
Debt Instrument [Line Items]
Long-term debt, gross	$ 1,208	1,594
Secured Debt | Note Purchase Agreement Due 2027
Debt Instrument [Line Items]
Long-term debt, gross	$ 20,000	20,000
Senior secured notes, stated interest rate	3.53%
Secured Debt | Note Purchase Agreement Due 2029
Debt Instrument [Line Items]
Long-term debt, gross	$ 20,000	$ 0
Senior secured notes, stated interest rate	3.80%

X

- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Contractual interest rate for funds borrowed, under the debt agreement.

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