STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Dec. 31, 2019	Jun. 30, 2019	Mar. 31, 2019
Cash flows from operating activities:
Net loss	$ (1,320)	$ (1,226)	$ (1,436)	$ (1,664)
Adjustments to reconcile net loss to net cash used in operating activities:
Depreciation	3			5
Amortization of right-of-use asset - operating	22			16
Share-based compensation	16			50
Change in operating assets and liabilities:
Other current assets	(75)			5
Accounts payable	(293)			(2)
Accrued compensation and employee benefits	60			56
Accrued expenses and other liabilities	(99)			(32)
Net cash used in operating activities	(1,686)			(1,566)
Cash flows from investing activities:
Purchases of property and equipment	(3)
Net cash used in investing activities	(3)
Cash flows from financing activities:
Proceeds from the issuance of common stock				3,081
Common stock offering costs				(117)
Net cash provided by financing activities				2,964
Net (decrease) increase in cash and cash equivalents	(1,689)			1,398
Cash and cash equivalents, beginning of period	8,363		$ 8,006	6,608
Cash and cash equivalents, end of period	6,674	$ 8,363		8,006
Supplemental cash flow information:
Income tax refund received				82
Supplemental disclosure of noncash investing and financing transactions:
Vendor finance agreement	408			349
Common stock offering costs accrued but not yet paid				64
Leased assets obtained in exchange for operating lease liabilities, upon adoption and extension	$ 49			$ 60