DEBT - Long- Term Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Debt Instrument [Line Items]
Capital lease obligations	$ 47	$ 94
Total debt	85,519	96,431
Less current portion	(2,033)	(8,071)
Long-term Debt and Capital Lease Obligations	83,486	88,360
Unamortized Discount and Debt Issuance Costs	(5,748)	(7,059)
Unamortized Discount and Debt Issuance Costs, Noncurrent	(5,748)	(7,059)
Revolving Credit Facility [Member] \| Senior Secured Asset-Backed [Member]
Debt Instrument [Line Items]
Debt	0	8,000
Unamortized Discount and Debt Issuance Costs	0	$ 0
Weighted average interest rate		2.41%
Senior Debt [Member] \| Term Loan [Member]
Debt Instrument [Line Items]
Debt	40,000	$ 0
Unamortized Discount and Debt Issuance Costs	$ (406)	0
Interest Rate	2.71%
Subordinated Debt [Member] \| Second Lien Term Loan [Member]
Debt Instrument [Line Items]
Debt	$ 0	30,000
Unamortized Discount and Debt Issuance Costs	0	$ (1,052)
Interest Rate		5.75%
Convertible Notes [Member] \| 8% Convertible Notes [Member]
Debt Instrument [Line Items]
Debt	25,000	$ 25,000
Unamortized Discount and Debt Issuance Costs	$ (5,342)	$ (6,007)
Interest Rate	8.00%	8.00%
Convertible Notes [Member] \| Convertible Note Derivative Liability [Member]
Debt Instrument [Line Items]
Debt	$ 20,472	$ 33,337
Unamortized Discount and Debt Issuance Costs	$ 0	$ 0

Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Noncurrent

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- Definition

Long-term Debt and Capital Lease Obligations, Gross

+ References

No definition available.

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- Definition

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 840
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6455398&loc=d3e45280-112737

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section S99
-Paragraph 1
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- 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.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
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-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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- Definition

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

+ References

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount of unamortized debt discount (premium) and debt issuance costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=64930785&loc=d3e28555-108399

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- Definition

Weighted average interest rate of debt outstanding.

+ References

No definition available.

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- Definition

Amount of long-term debt and capital leases due within one year or the normal operating cycle, if longer.

+ References

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- Definition

Amount of long-term debt and capital lease obligations including current maturities.

+ References

No definition available.

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