SEGMENT INFORMATION - RECONCILIATION OF OPERATING PROFIT (LOSS) (Details) - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenues	$ 17,673	$ 90,394	$ 67,683	$ 90,394
Direct operating (excludes depreciation and amortization shown below)	5,053	25,121	19,523	25,121
Selling, general and administrative	6,630	23,776	28,454	23,776
Allocation of corporate overhead	0		0	0
Provision for doubtful accounts	(589)	1,213	991	1,213
Restructuring expenses	0	87	0	87
Goodwill impairment	0
Depreciation and amortization of property and equipment	2,197	27,722	12,412	27,722
Amortization of intangible assets	1,395	5,718	5,580	5,718
Total operating expenses	14,686	83,637	66,960	83,637
Income (loss) from operations	2,987	$ 6,757	723	6,757
Phase I
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenues	3,903		16,782	32,068
Direct operating (excludes depreciation and amortization shown below)	210		1,098	1,052
Selling, general and administrative	(142)		378	544
Allocation of corporate overhead	0		0	0
Provision for doubtful accounts	(880)		480	737
Restructuring expenses	0			0
Goodwill impairment	0
Depreciation and amortization of property and equipment	66		4,167	19,263
Amortization of intangible assets	12		46	46
Total operating expenses	(734)		6,169	21,642
Income (loss) from operations	4,637		10,613	10,426
Phase II
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenues	3,018		11,863	12,538
Direct operating (excludes depreciation and amortization shown below)	106		390	388
Selling, general and administrative	104		369	228
Allocation of corporate overhead	0		0	0
Provision for doubtful accounts	288		511	209
Restructuring expenses	0			0
Goodwill impairment	0
Depreciation and amortization of property and equipment	1,881		7,523	7,523
Amortization of intangible assets	0		0	0
Total operating expenses	2,379		8,793	8,348
Income (loss) from operations	639		3,070	4,190
Services
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenues	2,382		8,932	11,611
Direct operating (excludes depreciation and amortization shown below)	0		38	10
Selling, general and administrative	240		1,008	798
Allocation of corporate overhead	394		1,604	1,581
Provision for doubtful accounts	0		0	0
Restructuring expenses	0			0
Goodwill impairment	0
Depreciation and amortization of property and equipment	0		0	0
Amortization of intangible assets	0		0	0
Total operating expenses	634		2,650	2,389
Income (loss) from operations	1,748		6,282	9,222
Content & Entertainment
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenues	8,370		30,106	34,177
Direct operating (excludes depreciation and amortization shown below)	4,737		17,997	23,671
Selling, general and administrative	4,197		16,715	15,812
Allocation of corporate overhead	837		3,409	3,583
Provision for doubtful accounts	3		0	267
Restructuring expenses	0			509
Goodwill impairment	0
Depreciation and amortization of property and equipment	201		443	273
Amortization of intangible assets	1,381		5,528	5,663
Total operating expenses	11,356		44,092	49,778
Income (loss) from operations	(2,986)		(13,986)	(15,601)
Corporate
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Revenues	0		0	0
Direct operating (excludes depreciation and amortization shown below)	0		0	0
Selling, general and administrative	2,231		9,984	6,394
Allocation of corporate overhead	(1,231)		(5,013)	(5,164)
Provision for doubtful accounts	0		0	0
Restructuring expenses	0			(422)
Goodwill impairment	0
Depreciation and amortization of property and equipment	49		279	663
Amortization of intangible assets	2		6	9
Total operating expenses	1,051		5,256	1,480
Income (loss) from operations	$ (1,051)		$ (5,256)	$ (1,480)