INCOME TAXES - Summary of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Deferred tax assets:
Deferred Revenue	$ 317	$ 243
Inventory	343	215
Accrued expenses	1,034	878
Disallowed Interest Expense	0	0
Net operating loss (1)	7,078	7,570
Net operating loss	296	509
Foreign tax credit carryover	4,615	4,180
Lease liability	922	1,674
Other	443	486
Total deferred tax assets	15,048	15,755
Valuation allowance	(11,933)	(12,375)
Total deferred tax assets, net of valuation allowance	3,115	3,380
Deferred tax liabilities:
Prepaid expenses	131	147
Deferred commissions	305	253
Internally-developed software	237	265
Deferred Tax Liabilities, Leasing Arrangements	884	1,659
Lease assets	383	178
Deferred Tax Liabilities, Gross	1,940	2,502
Net deferred tax assets	1,175	878
AUSTRALIA
Deferred tax assets:
Valuation allowance	(200)	(200)
Operating Loss Carryforwards [Line Items]
Gross NOL	282
Tax Effected NOL	85
BERMUDA
Operating Loss Carryforwards [Line Items]
Gross NOL	52
Tax Effected NOL	0
CHINA
Deferred tax assets:
Valuation allowance	(400)	(300)
Operating Loss Carryforwards [Line Items]
Gross NOL	242
Tax Effected NOL	61
Gibraltar
Operating Loss Carryforwards [Line Items]
Gross NOL	180
Tax Effected NOL	0
Hong Kong
Operating Loss Carryforwards [Line Items]
Gross NOL	24
Tax Effected NOL	4
Japan
Operating Loss Carryforwards [Line Items]
Gross NOL	139
Tax Effected NOL	48
Mexico
Deferred tax assets:
Valuation allowance	(3,100)	(3,300)
Operating Loss Carryforwards [Line Items]
Gross NOL	10,329
Tax Effected NOL	3,099
Norway
Deferred tax assets:
Valuation allowance	(100)	(100)
Operating Loss Carryforwards [Line Items]
Gross NOL	329
Tax Effected NOL	72
Russia
Operating Loss Carryforwards [Line Items]
Gross NOL	8
Tax Effected NOL	2
Singapore
Operating Loss Carryforwards [Line Items]
Gross NOL	150
Tax Effected NOL	26
Norway
Deferred tax assets:
Valuation allowance	(200)	(200)
Operating Loss Carryforwards [Line Items]
Gross NOL	727
Tax Effected NOL	204
Sweden
Operating Loss Carryforwards [Line Items]
Gross NOL	513
Tax Effected NOL	106
Switzerland
Deferred tax assets:
Valuation allowance	(500)	(500)
Operating Loss Carryforwards [Line Items]
Gross NOL	6,713
Tax Effected NOL	617
Taiwan
Deferred tax assets:
Valuation allowance	(1,100)	(1,000)
Operating Loss Carryforwards [Line Items]
Gross NOL	5,569
Tax Effected NOL	1,114
Taiwan
Deferred tax assets:
Valuation allowance	0	(100)
United Kingdom
Deferred tax assets:
Valuation allowance	(5,500)	(6,000)
Operating Loss Carryforwards [Line Items]
Gross NOL	13,506
Tax Effected NOL	804
United States - State
Deferred tax assets:
Valuation allowance	0	(100)
Operating Loss Carryforwards [Line Items]
Gross NOL	370
Tax Effected NOL	70
CYPRUS
Deferred tax assets:
Valuation allowance	(200)	0
Operating Loss Carryforwards [Line Items]
Gross NOL	1,414
Tax Effected NOL	177
COLOMBIA
Deferred tax assets:
Valuation allowance	(600)	$ (600)
Operating Loss Carryforwards [Line Items]
Gross NOL	1,907
Tax Effected NOL	$ 591