ACCRUED EXPENSES AND OTHER NON-CURRENT LIABILITIES (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Accrued expenses:
Accrued interest	$ 97	$ 228
Accrued compensation and benefits	3,027	3,913
Accrued property and other taxes	3,069	3,944
Accrued customer liabilities and deposits	4,802	4,529
Accrued professional and other service provider fees	5,224	3,386
Accrued commissions	1,224	1,162
Accrued telecommunications expenses	1,528	1,565
Accrued satellite and ground costs	428	634
Accrued inventory	561	102
Accrued asset purchase (See Note 8 for further discussion)	1,401	0
Other accrued expenses	1,724	1,291
Total accrued expenses	23,085	20,754
Summary of activity in the warranty reserve account:
Balance at beginning of period	143	132	$ 101
Provision	372	273	272
Utilization	(362)	(262)	(241)
Balance at end of period	153	143	$ 132
Non-current liabilities:
Asset retirement obligation	1,459	1,451
Deferred rent and other deferred expense	147	274
Capital lease obligations	77	154
Liability related to the Cooperative Endeavor Agreement with the State of Louisiana	248	460
Foreign tax contingencies	1,435	3,634
Total other non-current liabilities	$ 3,366	$ 5,973