Per Share Amounts (Tables)

3 Months Ended

Mar. 31, 2020

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The following table sets forth the computation of basic and diluted earnings per share for the three-month periods ended March 31, 2020 and 2019:

	Three Months ended March 31,
	2020		2019
Net (loss) income attributable to American Shared Hospital Services	$	(135,000)	$	270,000
Weighted average common shares for basic earnings per share	6,126,000		5,853,000
Diluted effect of stock options and restricted stock	27,000		33,000
Weighted average common shares for diluted earnings per share	6,153,000		5,886,000
Basic (loss) earnings per share	$	(0.02)	$	0.05
Diluted (loss) earnings per share	$	(0.02)	$	0.05