Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2019	Dec. 31, 2018
Statement of Financial Position [Abstract]
Preferred stock, authorized	5,000,000	5,000,000
Preferred stock, issued	0	0
Preferred stock, outstanding	0	0
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, authorized	50,000,000	50,000,000
Common stock, issued	16,540,478	16,145,915
Common Stock, outstanding	16,485,780	16,112,461
Treasury stock, shares	54,698	33,454