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						9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2021	Sep. 30, 2020
Numerator: (in Thousands)
Net income	$ 1,363	$ 41	$ 1,310	$ 430	$ 532	$ (167)	$ 2,714	$ 795
Denominator:
Weighted average number of basic common shares outstanding	48,566,431			38,141,741			43,756,300	38,138,453
Weighted average additional shares assuming conversion of in-the-money stock options to common shares	2,162,000			291,000			1,970,000	90,000
Weighted average number of diluted common shares outstanding	50,728,431			38,432,741			45,726,300	38,228,453
Basic earnings per common share:
Net income per share – basic	$ 0.03			$ 0.01			$ 0.06	$ 0.02
Diluted earnings per common share:
Net income per share – diluted	$ 0.03			$ 0.01			$ 0.06	$ 0.02