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NOTES PAYABLE AND CREDIT AGREEMENT - Summary of Credit Agreement and Notes Payable (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014	Dec. 31, 2013
Debt Instrument [Line Items]
Payments/Long term debt, Total	$ 46,300	$ 41,475
Less current portion	(850)	(825)
Long term portion	45,450	40,650
Credit Facility [Member]
Debt Instrument [Line Items]
Payments/Long term debt, Total	45,000	40,000
Average effective interest rate (in hundredths)	2.50%
3.25 % notes payable due in next year [Member]
Debt Instrument [Line Items]
Payments/Long term debt, Total	1,300	1,475
Annual installments	$ 850
Percentage of interest accrued (in hundredths)	3.25%

X

- Definition

Amount of the total principal payments made during the annual reporting period.

+ References

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-Publisher FASB

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

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The effective interest rate during the reporting period.

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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