Discontinued Operations - (Details Narrative) $ in Thousands				12 Months Ended
	Aug. 16, 2018 USD ($) shares	Aug. 13, 2018 USD ($)	Jan. 04, 2016 USD ($) Integer	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Dec. 28, 2018 USD ($)	Sep. 28, 2017 USD ($)	Jan. 23, 2017 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Current assets of discontinued operations				$ 2,400	$ 11,500
Current liabilities of discontinued operations				4,600	20,200
NXSN-Humilis Agreement [Member] | Share Option [Member] | Common Stock [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Option to purchase shares | shares	140,000,500
Legal Settlement Payment to Others [Member] | Share Option [Member] | Preferred Stock [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Option to purchase shares | shares	5,600,000
Stock Purchase Agreement [Member] | StorCentric, Inc., [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Gross proceeds amount of stock options	$ 5,675
Purchase Agreement [Member] | Hilco IP Services LLC [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sale of business, total consideration						$ 950
IOENGINE Note [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Debt instrument, principal amount							$ 4,000
Repayments of notes payable		$ 2,250
NXSN Acquisition Corp. [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Noncontrolling interest, percentage held by parent								50.00%
Senior secured convertible promissory note								$ 25,000
Discontinued Operations, Disposed of by Sale [Member] | Trademarks [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of trademarks sold (trademark) | Integer			2
Sale of trademarks			$ 9,400
Discontinued Operations, Disposed of by Sale [Member] | Nexsan Sale [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Sale of business, total consideration	5,675
Escrow deposit	$ 650
Escrow deposit duration	18 months
Proceeds from escrowed fund	$ 2,775
Escrow deposit disbursements related to property sales				750
Ramianing escrow deposit				250
Net income of discontinued operations				18,900	6,400
Disposal group, including discontinued operation, general and administrative expense				3,800
Disposal group, including discontinued operation, intangible assets, current				1,000
Net income of discontinued operations, noncontrolling interest				600	10,200
Disposal group, including discontinued operation, depreciation and amortization				300	2,000
Disposal group, including discontinued operation, lease expense				500	1,100
Discontinued operation, tax effect of income (loss) from discontinued operation during phase-out period				300	3,300
Current assets of discontinued operations				2,400	11,500
Disposal group, including discontinued operation, accounts receivable, net				700	5,800
Disposal group, including discontinued operation, funds held in escrow				1,000
Disposal group, including discontinued operation, other assets				700	2,200
Disposal group, including discontinued operation, inventory					3,500
Current liabilities of discontinued operations				4,600	20,200
Accounts payable of discontinued operations				1,700	6,700
Customer credit and rebate accruals of discontinued operation				1,000	700
Other current liabilities of discontinued operations				2,200	5,600
Disposal group, including discontinued operation, deferred revenue					7,200
Other liabilities of discontinued operations				2,200	13,600
Withholding tax of discontinued operations				500	1,000
Tax contingencies of discontinued operations				600	900
Other liabilities of discontinued operations, other				1,100	6,600
Discontinued Operations, Disposed of by Sale [Member] | IOENGINE [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Disposal group, including discontinued operation, general and administrative expense				$ 1,900
Other liabilities of discontinued operations, other					4,100
Discontinued Operations, Disposed of by Sale [Member] | CMC [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Other liabilities of discontinued operations, other					$ 1,000