Earnings applicable to common stock and common stock shares used in the calculation of basic and diluted earnings per share are as follows: (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended				6 Months Ended
	Jun. 30, 2021	Mar. 31, 2021	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2021	Jun. 30, 2020
Numerator: (in Thousands)
Net income	$ 41	$ 1,310	$ 532	$ (167)	$ 1,351	$ 365
Denominator:
Weighted average number of basic common shares outstanding	44,367,496		38,136,792		41,294,394	38,136,792
Weighted average additional shares assuming conversion of in-the-money stock options to common shares	1,995,000		65,000		1,784,000	50,000
Weighted average number of diluted common shares outstanding	46,362,496		38,201,792		43,078,394	38,186,792
Basic earnings per common share:
Net income per share – basic	$ 0.00		$ 0.01		$ 0.03	$ 0.01
Diluted earnings per common share:
Net income per share – diluted	$ 0.00		$ 0.01		$ 0.03	$ 0.01