Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Cash flows from operating activities:
Net loss	$ (3,733)	$ (4,151)
Adjustments to reconcile net loss to net cash used in operating activities:
Stock-based compensation, net of forfeitures	90	187
Depreciation and amortization	141	289
Loss on disposal of assets	173	0
Changes in assets and liabilities:
Accounts receivable	6	(210)
Inventory	88	57
Income tax receivable	429	215
Accounts payable	(11)	(7)
Other assets and liabilities	319	264
Net cash used in operating activities	(2,498)	(3,356)
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	21,828	1,272
Net cash provided by financing activities	21,828	2,772
Net change in cash and cash equivalents	19,314	(584)
Cash and cash equivalents at beginning of period	3,349	1,588
Cash and cash equivalents at end of period	22,663	1,004
Reconciliation of cash and cash equivalents and restricted cash at end of period:
Cash and cash equivalents	22,121	393
Restricted cash	542	611
Total	22,663	1,004
Supplemental disclosures of cash flow information:
Cash paid for interest	0	0
Income taxes paid	0	0
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