Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash flows from operating activities:
Net loss	$ (2,111)	$ (2,068)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation, net of forfeitures	44	104
Depreciation and amortization	81	141
Loss on disposal of assets	194	0
Changes in assets and liabilities:
Accounts receivable	49	0
Income tax receivable	429	0
Inventory	64	1
Accounts payable	(164)	(61)
Other assets and liabilities	(66)	53
Net cash used in operating activities	(1,480)	(1,830)
Cash flows from investing activities:
Purchases of property and equipment	(16)	0
Net cash used in investing activities	(16)	0
Cash flows from financing activities:
Proceeds from term note payable - related party	0	1,500
Proceeds from issuance of stock, net of offering issuance costs	0	321
Net cash provided by financing activities	0	1,821
Net change in cash and cash equivalents	(1,496)	(9)
Cash and cash equivalents at beginning of period	3,349	1,588
Cash and cash equivalents at end of period	1,853	1,579
Supplemental disclosures of cash flow information:
Cash paid for interest	0	0
Income taxes paid	0	$ 0
Accounting Standards Update [Extensible List]		us-gaap:AccountingStandardsUpdate201602Member
Operating right-of-use assets and associated liabilities	0	$ 1,608
Adjustment to Opening Retained Earnings Related to Adoption ASC Topic 842
Supplemental disclosures of cash flow information:
Impact to retained earnings from adoption of ASC Topic 842	$ 0	$ 230
Accounting Standards Update [Extensible List]		us-gaap:AccountingStandardsUpdate201602Member