CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017
Cash flows from operating activities
Net income (loss)	$ 67,262	$ (4,238)
Adjustments to reconcile net income (loss) to net cash used in operating activities:
Gain on sale of the Core Business, net of tax	(69,072)	0
Depreciation and amortization	429	527
Gain on disposal of property and equipment, net	0	3
Stock based compensation	1,238	532
Change in fair value of derivative liabilities	(20)	(57)
Unrealized gain on short term investments	(47)	0
Provision for allowance for doubtful accounts	123	128
Benefit of deferred taxes	(368)	0
Changes in current assets and liabilities, net of effect of disposition:
Trade receivables	595	528
Prepaid expenses and other assets	(188)	(221)
Inventories	(1,706)	(1,177)
Deposits and other assets	(9)	9
Accounts payable	765	(219)
Accrued expenses and other liabilities	(1,837)	(250)
Net cash used in operating activities	(2,835)	(4,435)
Cash flows from investing activities
Purchases of property and equipment	(203)	(431)
Proceeds from the disposition of Core business	91,095	0
Purchases of marketable securities	(55,433)	0
Net cash from investing activities	35,459	(431)
Cash flows from financing activities
Proceeds from stock options/warrants exercised	65	0
Repayment of mortgage note payable	(2,694)	(179)
Net cash used in financing activities	(2,629)	(179)
Net change in cash, cash equivalents and restricted cash	29,995	(5,045)
Cash, cash equivalents and restricted cash, beginning of period	10,668	15,235
Cash, cash equivalents and restricted cash, end of period	40,663	10,190
Cash paid for:
Interest (income) expense, net	(33)	103
Non cash investing activities:
Cashless exercise of stock options/warrants	$ 3,133	$ 275