DEBT (Outstanding Debt Balances) (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019
Debt Instrument [Line Items]
Debt, Carrying Value	$ 223,653	$ 201,816
Debt Instrument, Interest Rate, Effective Percentage	4.50%	4.80%
Asset Related Debt [Member]
Debt Instrument [Line Items]
Debt, Carrying Value	$ 0	$ 3,500
Debt Instrument, Interest Rate, Effective Percentage	0.00%	5.00%
Other Debt [Member]
Debt Instrument [Line Items]
Debt, Carrying Value	$ 223,653	$ 198,316
Debt Instrument, Interest Rate, Effective Percentage	4.50%	4.80%
NonBond Related Notes Payable and Other Debt [Member] \| Asset Related Debt [Member]
Debt Instrument [Line Items]
Debt, Due within one year		$ 650
Debt, Due after one year		$ 2,850
Debt Instrument, Interest Rate, Effective Percentage, Current Portion		5.00%
Debt Instrument, Interest Rate, Effective Percentage, Noncurrent Portion		5.00%
Notes Payable and Other Debt [Member] \| Other Debt [Member]
Debt Instrument [Line Items]
Debt, Due within one year	$ 4,430	$ 6,828
Debt, Due after one year	$ 4,300	$ 1,500
Debt Instrument, Interest Rate, Effective Percentage, Current Portion	14.30%	14.70%
Debt Instrument, Interest Rate, Effective Percentage, Noncurrent Portion	5.00%	5.00%
Unamortized debt issue costs		$ 100
Subordinated Loan [Member]
Debt Instrument [Line Items]
Net Premium and Debt Issuance Costs	$ 7,300	7,400
Subordinated Loan [Member] \| Other Debt [Member]
Debt Instrument [Line Items]
Debt, Due within one year	2,206	2,212
Debt, Due after one year	$ 92,717	$ 93,276
Debt Instrument, Interest Rate, Effective Percentage, Current Portion	3.10%	3.20%
Debt Instrument, Interest Rate, Effective Percentage, Noncurrent Portion	3.10%	3.20%
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt, Carrying Value	$ 120,000
Debt Instrument, Interest Rate, Effective Percentage	5.30%
Unamortized debt issue costs	$ 2,900	$ 2,700
Revolving Credit Facility [Member] \| Other Debt [Member]
Debt Instrument [Line Items]
Debt, Due after one year	$ 120,000	$ 94,500
Debt Instrument, Interest Rate, Effective Percentage, Noncurrent Portion	5.30%	5.60%

Debt Instrument, Interest Rate, Effective Percentage, Current Portion

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- Definition

Debt Instrument, Interest Rate, Effective Percentage, Noncurrent Portion

+ References

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- Definition

Amount of net premiums and debt issuance costs as of the balance sheet date.

+ References

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Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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No definition available.

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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.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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-SubTopic 20
-Section 50
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- Definition

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

+ References

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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- Definition

The remaining balance of debt issuance expenses that were capitalized and are being amortized against income over the lives of the respective bond issues. This does not include the amounts capitalized as part of the cost of the utility plant or asset.

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