STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($) shares in Thousands	Common Stock	Preferred Stock	Additional Paid-in Capital	Accumulated Deficit	Total
Balance at Dec. 31, 2020	$ 1,000	$ 1,000	$ 64,716,000	$ (57,084,000)	$ 7,634,000
Balance (in shares) at Dec. 31, 2020	10,130	90
Common stock issued upon settlement of restricted stock units (in shares)	92
Issuance of common stock for services (in shares)	2
Surrender of stock to cover tax liability on settlement of employee stock-based awards			(373,000)		(373,000)
Surrender of stock to cover tax liability on settlement of employee stock-based awards (in share)	(16)
Issuance of common stock for cash, net of transaction expenses			16,534,000		16,534,000
Issuance of common stock for cash, net of transaction expenses (in shares)	472
Common stock issued upon exercise of warrants and options on a cash basis			148,000		148,000
Common stock issued upon exercise of warrants and options on a cash basis (in shares)	22
Common stock issued upon exercise of warrants and options on a cashless basis (in shares)	121
Stock-based compensation			1,781,000		1,781,000
Net loss				(2,765,000)	(2,765,000)
Balance at Mar. 31, 2021	$ 1,000	$ 1,000	82,806,000	(59,849,000)	22,959,000
Balance (in shares) at Mar. 31, 2021	10,823	90
Balance at Dec. 31, 2020	$ 1,000	$ 1,000	64,716,000	(57,084,000)	7,634,000
Balance (in shares) at Dec. 31, 2020	10,130	90
Net loss					(4,549,000)
Balance at Jun. 30, 2021	$ 1,000		84,786,000	(61,633,000)	23,154,000
Balance (in shares) at Jun. 30, 2021	11,277
Balance at Mar. 31, 2021	$ 1,000	$ 1,000	82,806,000	(59,849,000)	22,959,000
Balance (in shares) at Mar. 31, 2021	10,823	90
Common stock issued upon settlement of restricted stock units (in shares)	78
Issuance of common stock for services (in shares)	13
Surrender of stock to cover tax liability on settlement of employee stock-based awards			(39,000)		(39,000)
Surrender of stock to cover tax liability on settlement of employee stock-based awards (in share)	(2)
Common stock issued upon exercise of warrants and options on a cash basis			255,000		255,000
Common stock issued upon exercise of warrants and options on a cash basis (in shares)	53
Common stock issued upon exercise of warrants and options on a cashless basis (in shares)	33
Common stock issued upon conversion of preferred stock		$ (1,000)	1,000
Common stock issued upon conversion of preferred stock (in Shares)	279	(90)
Stock-based compensation			1,763,000		1,763,000
Net loss				(1,784,000)	(1,784,000)
Balance at Jun. 30, 2021	$ 1,000		84,786,000	(61,633,000)	23,154,000
Balance (in shares) at Jun. 30, 2021	11,277
Balance at Dec. 31, 2021	$ 1,000		88,889,000	(71,293,000)	17,597,000
Balance (in shares) at Dec. 31, 2021	11,435
Common stock issued upon settlement of restricted stock units (in shares)	35
Issuance of common stock for services (in shares)	8
Surrender of stock to cover tax liability on settlement of employee stock-based awards			(25,000)		(25,000)
Surrender of stock to cover tax liability on settlement of employee stock-based awards (in share)	(4)
Stock-based compensation			1,145,000		1,145,000
Net loss				(3,616,000)	(3,616,000)
Balance at Mar. 31, 2022	$ 1,000		90,009,000	(74,909,000)	15,101,000
Balance (in shares) at Mar. 31, 2022	11,474
Balance at Dec. 31, 2021	$ 1,000		88,889,000	(71,293,000)	17,597,000
Balance (in shares) at Dec. 31, 2021	11,435
Common stock repurchased for retirement					(410,000)
Net loss					(6,226,000)
Balance at Jun. 30, 2022	$ 1,000		90,917,000	(77,929,000)	12,989,000
Balance (in shares) at Jun. 30, 2022	11,481
Balance at Mar. 31, 2022	$ 1,000		90,009,000	(74,909,000)	15,101,000
Balance (in shares) at Mar. 31, 2022	11,474
Common stock issued upon settlement of restricted stock units (in shares)	103
Issuance of common stock for services (in shares)	11
Surrender of stock to cover tax liability on settlement of employee stock-based awards			(133,000)		(133,000)
Surrender of stock to cover tax liability on settlement of employee stock-based awards (in share)	(28)
Common stock repurchased for retirement				(410,000)	(410,000)
Common stock repurchased for retirement (in Shares)	(79)
Stock-based compensation			1,041,000		1,041,000
Net loss				(2,610,000)	(2,610,000)
Balance at Jun. 30, 2022	$ 1,000		$ 90,917,000	$ (77,929,000)	$ 12,989,000
Balance (in shares) at Jun. 30, 2022	11,481