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INCOME TAXES (Details) - USD ($) $ in Thousands			3 Months Ended	6 Months Ended		12 Months Ended
	Jan. 01, 2018	Dec. 31, 2017	Dec. 31, 2017	Dec. 31, 2017	Dec. 31, 2016	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2017
INCOME TAXES (Details) [Line Items]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent			28.00%					34.00%
Income Tax Expense (Benefit), Continuing Operations, Adjustment of Deferred Tax (Asset) Liability				$ 1,400
Valuation allowance		$ 1,200	$ 1,200	1,200				$ 3,300
Deferred Income Tax Expense (Benefit)				417	$ 0
Domestic Tax Authority [Member]
INCOME TAXES (Details) [Line Items]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	35.00%
Other Tax Expense (Benefit)			17
Operating loss carryover		$ 4,900	4,900	4,900
Domestic Tax Authority [Member] | Charitable Contributions [Member]
INCOME TAXES (Details) [Line Items]
Charitable contribution carryovers		155	155	155
Domestic Tax Authority [Member] | Charitable Contributions [Member] | Expiring in Fiscal Year 2018 [Member]
INCOME TAXES (Details) [Line Items]
Charitable contribution carryovers		68	68	68
Domestic Tax Authority [Member] | Charitable Contributions [Member] | Expiring in Fiscal Year 2019 [Member]
INCOME TAXES (Details) [Line Items]
Charitable contribution carryovers		34	34	34
Domestic Tax Authority [Member] | Charitable Contributions [Member] | Expiring in Fiscal Year 2020 [Member]
INCOME TAXES (Details) [Line Items]
Charitable contribution carryovers		19	19	19
Domestic Tax Authority [Member] | Charitable Contributions [Member] | Expiring in Fiscal Year 2021 [Member]
INCOME TAXES (Details) [Line Items]
Charitable contribution carryovers		5	5	5
Domestic Tax Authority [Member] | Charitable Contributions [Member] | Expiring In Fiscal Year 2022 [Member]
INCOME TAXES (Details) [Line Items]
Charitable contribution carryovers		21	21	21
Domestic Tax Authority [Member] | Charitable Contributions [Member] | Expiring In Fiscal Year 2023 [Member]
INCOME TAXES (Details) [Line Items]
Charitable contribution carryovers		8	8	8
Scenario, Forecast [Member] | Domestic Tax Authority [Member]
INCOME TAXES (Details) [Line Items]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent						21.00%	28.00%
Expiring in Fiscal Year 2035 [Member] | Domestic Tax Authority [Member]
INCOME TAXES (Details) [Line Items]
Operating loss carryover		2,000	2,000	2,000
Expiring in Fiscal Year 2036 [Member] | Domestic Tax Authority [Member]
INCOME TAXES (Details) [Line Items]
Operating loss carryover		2,700	2,700	2,700
Expiring in Fiscal Year 2036 [Member] | Galileo [Member] | Foreign Tax Authority [Member]
INCOME TAXES (Details) [Line Items]
Operating loss carryover		68	68	68
Expiring in Fiscal Year 2038 [Member] | Domestic Tax Authority [Member]
INCOME TAXES (Details) [Line Items]
Operating loss carryover		$ 161	$ 161	$ 161

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