BASIC AND DILUTED NET INCOME (LOSS) PER SHARE (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020
Earnings (loss) per share - basic and diluted
Numerator: net loss	$ (259)	$ (595)	$ (1,200)
Denominator (weighted):
Common shares	22,072	21,650
RSUs - vested	392	620
Common stock purchase warrant	10,000	10,000
Basic and diluted weighted average shares outstanding	32,464	32,270
Loss per share - basic and diluted	$ (0.01)	$ (0.02)
Common shares issuable:
Total excluded common shares	40,444	40,784
RSU awards
Common shares issuable:
Total excluded common shares	0	98
Stock option awards
Common shares issuable:
Total excluded common shares	1,162	1,344
Common stock purchase warrants
Common shares issuable:
Total excluded common shares	1,782	1,842
Convertible loan
Common shares issuable:
Total excluded common shares	37,500	37,500