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FINANCING ARRANGEMENTS AND LONG-TERM DEBT - Long-term Debt (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
FINANCING ARRANGEMENTS AND LONG-TERM DEBT
Senior secured credit facility	$ 86,863	$ 99,113
Debt issuance costs	(1,040)	(1,651)
Long-term debt, net	85,823	97,462
Less current installments on long term debt	11,000	8,250
Long-term debt	$ 74,823	$ 89,212

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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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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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