DEBT AND CREDIT ARRANGEMENTS - Schedule of Long-term Debt (Details) - USD ($) |
Jun. 30, 2019 |
Dec. 31, 2018 |
Dec. 31, 2017 |
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| Debt Instrument [Line Items] | |||
| Short-term debt with affiliate | $ 30,000,000 | $ 0 | |
| Total debt | 51,233,000 | 21,274,000 | |
| Less: current maturities | 30,121,000 | 118,000 | |
| Total long-term debt, net of current maturities | 21,112,000 | 21,156,000 | |
| Note payable to Squadron | |||
| Debt Instrument [Line Items] | |||
| Note payable to Squadron | 19,874,000 | 19,856,000 | |
| Mortgage payable to affiliate | $ 20,000,000 | ||
| Mortgage payable to affiliate | |||
| Debt Instrument [Line Items] | |||
| Mortgage payable to affiliate | 1,359,000 | 1,418,000 | |
| Less: current maturities | $ 121,000 | $ 118,000 |
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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. No definition available.
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- Definition Represents the aggregate of total long-term debt, including current maturities and short-term debt. No definition available.
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- Definition 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. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition 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. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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