Unaudited Consolidated Statements of Stockholders' Equity (deficit) - USD ($) $ in Thousands	Total	Common Stock	Additional Paid-In Capital	Common Stock Issuable	Accumulated Deficit
Balance, shares at Dec. 31, 2020		59,476,268
Balance, amount at Dec. 31, 2020	$ 21,279	$ 60	$ 101,807	$ 665	$ (81,253)
Issuance of common stock for professional services, shares		265,512
Issuance of common stock for professional services, amount	508	$ 0	363	145	0
Issuance of common stock from the equity incentive plan, shares		157,693
Issuance of common stock from the equity incentive plan, amount	138	$ 0	190	(52)	0
Issuance of common stock for exercise of warrants, shares		26,936
Issuance of common stock for exercise of warrants, amount	0	$ 0	0	0	0
Fair value of stock options and restricted stock granted	961	0	961	0	0
Fair value of restricted stock units granted	144	0	144	0	0
Net loss	(3,171)	$ 0	0	0	(3,171)
Balance, shares at Mar. 31, 2021		59,926,409
Balance, amount at Mar. 31, 2021	19,859	$ 60	103,465	758	(84,424)
Balance, shares at Dec. 31, 2020		59,476,268
Balance, amount at Dec. 31, 2020	21,279	$ 60	101,807	665	(81,253)
Net loss	(8,835)
Balance, shares at Sep. 30, 2021		65,060,044
Balance, amount at Sep. 30, 2021	18,585	$ 66	108,004	603	(90,088)
Balance, shares at Mar. 31, 2021		59,926,409
Balance, amount at Mar. 31, 2021	19,859	$ 60	103,465	758	(84,424)
Issuance of common stock for professional services, shares		381,000
Issuance of common stock for professional services, amount	243	$ 0	243	0	0
Issuance of common stock from the equity incentive plan, shares		141,693
Issuance of common stock from the equity incentive plan, amount	(157)	$ 0	(2)	(155)	0
Fair value of stock options and restricted stock granted	591	0	591	0	0
Fair value of restricted stock units granted	143	0	143	0	0
Net loss	(1,321)	$ 0	0	0	(1,321)
Issuance of common stock from conversion of convertible promissory notes, shares		2,428,857
Issuance of common stock from conversion of convertible promissory notes, amount	1,835	$ 3	1,832	0	0
Balance, shares at Jun. 30, 2021		62,877,959
Balance, amount at Jun. 30, 2021	21,193	$ 63	106,272	603	(85,745)
Issuance of common stock for professional services, shares		572,975
Issuance of common stock for professional services, amount	0	$ 1	(1)	0	0
Fair value of stock options and restricted stock granted	532	0	532	0	0
Fair value of restricted stock units granted	156	0	156	0	0
Net loss	(4,343)	$ 0	0	0	(4,343)
Issuance of common stock from conversion of convertible promissory notes, shares		1,609,110
Issuance of common stock from conversion of convertible promissory notes, amount	1,047	$ 2	1,045	0	0
Balance, shares at Sep. 30, 2021		65,060,044
Balance, amount at Sep. 30, 2021	18,585	$ 66	108,004	603	(90,088)
Balance, shares at Dec. 31, 2021		68,201,900
Balance, amount at Dec. 31, 2021	16,112	$ 69	110,146	343	(94,446)
Issuance of common stock for professional services, amount	17	0	0	17	0
Fair value of stock options and restricted stock granted	352	0	352	0	0
Fair value of restricted stock units granted	103	0	103	0	0
Net loss	(5,151)	$ 0	0	0	(5,151)
Issuance of common stock from conversion of convertible promissory notes, shares		1,665,000
Issuance of common stock from conversion of convertible promissory notes, amount	666	$ 2	664	0	0
Balance, shares at Mar. 31, 2022		69,866,900
Balance, amount at Mar. 31, 2022	12,099	$ 71	111,265	360	(99,597)
Balance, shares at Dec. 31, 2021		68,201,900
Balance, amount at Dec. 31, 2021	16,112	$ 69	110,146	343	(94,446)
Net loss	(18,363)
Balance, shares at Sep. 30, 2022		71,376,799
Balance, amount at Sep. 30, 2022	(173)	$ 71	112,257	308	(112,809)
Balance, shares at Mar. 31, 2022		69,866,900
Balance, amount at Mar. 31, 2022	12,099	$ 71	111,265	360	(99,597)
Issuance of common stock for professional services, shares		145,000
Issuance of common stock for professional services, amount	(10)	$ 0	42	(52)	0
Fair value of stock options and restricted stock granted	316	0	316	0	0
Fair value of restricted stock units granted	102	0	102	0	0
Net loss	(9,619)	$ 0	0	0	(9,619)
Balance, shares at Jun. 30, 2022		70,011,900
Balance, amount at Jun. 30, 2022	2,888	$ 71	111,725	308	(109,216)
Issuance of common stock for professional services, shares		776,664
Issuance of common stock for professional services, amount	241	$ 0	241	0	0
Fair value of stock options and restricted stock granted	189	0	189	0	0
Fair value of restricted stock units granted	102	0	102	0	0
Net loss	(3,593)	$ 0	0	0	(3,593)
Issuance of restricted stock units, shares		588,235
Issuance of restricted stock units, amount	0	$ 0	0	0	0
Balance, shares at Sep. 30, 2022		71,376,799
Balance, amount at Sep. 30, 2022	$ (173)	$ 71	$ 112,257	$ 308	$ (112,809)