Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
CURRENT ASSETS
Cash and cash equivalents	$ 15,351	$ 7,939
Accounts Receivable	163	31
Prepaid expenses and other current assets	190	177
Deferred Offering Costs	60
Inventory	49	54
TOTAL CURRENT ASSETS	15,813	8,201
PROPERTY AND EQUIPMENT
Equipment for lease, net of accumulated amortization of $61 and $50 as of March 31, 2021 and December 31, 2020, respectively	234	200
INTANGIBLE ASSETS
Patents and Trademarks, net of accumulated amortization of $327 and $320 as of March 31, 2021 and December 31, 2020, respectively	330	293
Capitalized Software Costs, net of accumulated amortization of $25 and $20 as of March 31, 2021 and December 31, 2020, respectively	117	80
TOTAL ASSETS	16,494	8,774
CURRENT LIABILITIES
Accounts payable and other accrued expenses	433	383
TOTAL CURRENT LIABILITIES	433	383
LONG-TERM LIABILITIES
Term Note	72	72
TOTAL LIABILITIES	505	455
STOCKHOLDERS' EQUITY
Common stock, $.001 par value; 675,000,000 authorized; 7,366,053 and 5,603,888 issued, 7,359,042 and 5,596,877 shares outstanding as of March 31, 2021 and December 31, 2020, respectively	7	6
Additional paid in capital	84,983	76,099
Treasury stock as cost (7,011 shares at March 31, 2021 and December 31, 2020)	(113)	(113)
Accumulated deficit	(68,888)	(67,673)
STOCKHOLDERS' EQUITY	15,989	8,319
TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY	16,494	8,774
Series A Convertible Preferred Stock [Member]
STOCKHOLDERS' EQUITY
Convertible Preferred Stock
STOCKHOLDERS' EQUITY
Series B Convertible Preferred Stock [Member]
STOCKHOLDERS' EQUITY
Convertible Preferred Stock
STOCKHOLDERS' EQUITY