CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash flows from operating activities:
Net loss	$ (20,617)	$ (4,916)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	1,642	128
Amortization	101	6
Interest expense - debt discount	8,813	1,239
Accretion of original issue discount on notes receivable - related party	(1,524)	(36)
Interest expense on conversion of promissory notes to common stock		13
Stock-based compensation	4,163	1,269
Realized losses on sale of digital currencies	111
Realized losses on sale of marketable securities	168
Unrealized losses on trading securities	43
Changes in operating assets and liabilities:
Accounts receivable	876	(737)
Accounts receivable, related party	(3,517)
Digital currencies	(1,503)
Inventories	(117)	228
Prepaid expenses and other current assets	198	(166)
Other assets	(145)	(197)
Accounts payable and accrued expenses	1,923	2,083
Accounts payable, related parties	(15)	104
Other current liabilities	(30)	(595)
Net cash used in operating activities	(9,430)	(1,577)
Cash flows from investing activities:
Purchase of property and equipment	(9,318)	(22)
Loss on disposition of asset	22
Purchase of intangible asset	(54)	(50)
Purchase of Power Plus		(409)
Purchase of Enertec	(4,937)
Cash received on acquisitions	293
Investments - related party	(845)	(2,710)
Related party investment in real property	(1,915)
Investment in real property		(300)
Investments in warrants and common stock - related party	(2,288)
Investments in marketable securities	(858)
Sales of marketable securities	2,159
Investments - others	(25)	(25)
Loans to third party		(814)
Loans to related parties		(54)
Proceeds from loans to related parties	16
Investments in debt and equity securities	(2,166)
Net cash used in investing activities	(19,916)	(4,384)
Cash flows from financing activities:
Gross proceeds from sales of common stock and warrants	22,247	745
Repurchase of common stock	(55)
Proceeds from issuance of preferred stock		1,540
Financing cost in connection with sales of equity securities	(1,951)	(275)
Proceeds from stock option exercises	98
Proceeds from warrant exercises	867
Proceeds from convertible notes payable	11,550	1,514
Proceeds from notes payable - related party		350
Proceeds from notes payable	12,235	785
Proceeds from short-term advances - related party	137
Proceeds from short-term advances	761
Payments on short-term advances	(425)
Payments on notes payable	(11,782)	(30)
Payments on convertible notes payable	(2,362)	(157)
Proceeds from advances on future receipts	2,990	1,772
Payments on advances on future receipts	(5,158)	(439)
Payments of preferred dividends		(8)
Financing cost in connection with sales of debt securities		(122)
Payments on revolving credit facilities, net	(361)	(481)
Net cash provided by financing activities	28,791	5,194
Effect of exchange rate changes on cash and cash equivalents	(220)	85
Net decrease in cash and cash equivalents	(775)	(682)
Cash and cash equivalents at beginning of period	1,478	996
Cash and cash equivalents at end of period	703	314
Supplemental disclosures of cash flow information:
Cash paid during the period for interest	695	69
Non-cash investing and financing activities:
Cancellation of convertible note payable into shares of common stock	2,168	145
Cancellation of short term advances into shares of common stock	2,775
Cancellation of short term advances, related party into shares of common stock	45
Cancellation of short term advances, related party into shares of Series B Preferred Stock	250
Issuance of common stock for prepaid services	794
Cancellation of notes payable - related party into shares of common stock		100
Cancellation of notes payable into shares of common stock		$ 648
Cancellation of note payable - related party into series B convertible preferred stock		500
In connection with the Company's acquisition of Microphase Corporation, equity instruments were issued and liabilities assumed during 2017 as follows:
Fair value of assets acquired	$ 8,275
Equity instruments issued	(1,451)
Non-controlling interest	(945)
Liabilities assumed	$ 5,879