Consolidated Statements of Cash Flows - USD ($)	6 Months Ended	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2018	Jun. 30, 2017
Cash flows from operating activities:
Net loss	$ (2,770,000)	$ (40,940,000)	$ (29,095,000)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation and amortization	322,000	670,000	830,000
Stock-based compensation expense	291,000	652,000	1,461,000
(Recovery of) reserve for excess and slow-moving inventories	(162,000)	(11,000)	(203,000)
Bad debt expense	170,000	153,000	50,000
Amortization of debt discount		1,174,000	9,851,000
Amortization of debt issue costs			160,000
Change in fair value of derivative obligation	(133,000)	(596,000)	60,000
Deferred income tax benefit	2,238,000	4,730,000	673,000
Non-cash accrued interest			10,373,000
Loss on disposal of equipment and leasehold improvements	8,000	1,360,000	176,000
Impairment of intangible asset		33,081,000	310,000
Net changes in operating assets and liabilities:
Accounts receivable	987,000	1,045,000	(572,000)
Inventories	(367,000)	61,000	615,000
Prepaid expenses and other assets	(347,000)	370,000	24,000
Accounts payable	469,000	214,000	(1,062,000)
Related party payable		(606,000)	606,000
Accrued payroll and related expenses	148,000	172,000	(63,000)
Deferred revenue	(213,000)	24,000	(187,000)
Other current liabilities	481,000	922,000	26,000
Other noncurrent liabilities	37,000	2,000	98,000
Net cash (used in) operating activities	(3,317,000)	(6,983,000)	(7,215,000)
Cash flows from investing activities:
Cash paid for business acquisition	(1,000,000)
Capital expenditures	(296,000)	(1,238,000)	(375,000)
Net cash (used in) investing activities	(1,296,000)	(1,238,000)	(375,000)
Cash flows from financing activities:
Proceeds from convertible promissory note-related party	3,200,000	500,000	3,500,000
Payments on capital lease obligations	(29,000)	(45,000)	(84,000)
Proceeds from issuance of common stock and pre-funded warrants, net	2,368,000	6,629,000	2,092,000
Exercise of warrants		27,000
Exercise of options	15,000
Cash paid for taxes on vested stock	(52,000)		(134,000)
Net cash provided by financing activities	5,502,000	7,111,000	5,374,000
Effects of foreign currency rate changes on cash and cash equivalents	1,000	(3,000)	4,000
Net increase (decrease) in cash, cash equivalents and restricted cash	890,000	(1,113,000)	(2,212,000)
Cash, cash equivalents and restricted cash at beginning of period	3,623,000	4,513,000	5,835,000
Cash, cash equivalents and restricted cash at end of period	4,513,000	3,400,000	3,623,000
Supplemental disclosures of cash flow information:
Cash paid for interest	4,000	667,000	6,000
Supplemental non-cash financing and investing information:
Common stock issued for payment of convertible debenture and interest			23,903,000
Recording of beneficial conversion feature on debt		7,200,000
Transfer of inventories to equipment and leasehold improvements		420,000
Transfer of equipment to inventories		172,000	625,000
Acquisition of business:
Inventories	649,000
Equipment	585,000
Intangible assets	1,528,000
Goodwill	781,000
Liabilities assumed	15,000
Subsidiary common stock issued for acquisition of net assets	$ 2,528,000