Condensed Consolidated Balance Sheets (Unaudited) (Parenthetical) - USD ($)	Sep. 30, 2024	Dec. 31, 2023
Allowance for bad debts	$ 690,000	$ 574,000
Preferred stock - par value	$ 0.001	$ 0.001
Preferred stock - shares authorized	5,000,000	5,000,000
Preferred stock - shares issued	0	0
Common stock - par value	$ 0.001	$ 0.001
Common stock - shares authorized	75,000,000	75,000,000
Common stock - shares issued	51,953,232	51,184,584
Common stock - shares outstanding	47,272,509	46,503,861
Treasury Stock, Common, Shares	4,680,723	4,680,723