STOCKHOLDERS' EQUITY (Tables)

12 Months Ended

Dec. 31, 2019

Equity [Abstract]

Schedule of Changes in Number of Shares Outstanding

The following table presents the changes in the number of shares outstanding for the years ended December 31:

	2019		2018
Shares issued:
Balance at beginning of year		3,211		473
Issue of shares upon vesting of restricted stock units		278		268
Issue of shares on exercises of stock options		—		16
Issue of shares in consideration for services		243		—
Issue of shares in private placement		30		—
Issue of shares in the Exchange		—		41
Issue of shares on the conversion of the Series A preferred stock		—		704
Issue of shares on the conversion of the Series B preferred stock		—		225
Issue of shares on exercises of Series C warrants		51		16
Issue of shares on exercises of Series D warrants		33		117
Issue of shares on exercises of Series E warrants		662		1,351
Balance at end of year		4,508		3,211
Shares held as treasury stock:
Balance at beginning of year		111		2
Purchase of treasury stock		97		109
Balance at end of year		208		111
Shares outstanding at end of year		4,300		3,100