Condensed Consolidated Balance Sheets (Parenthetical) - USD ($)	Sep. 30, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 779,000	$ 0
Preferred stock, par value (USD per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (shares)	10,000,000	10,000,000
Preferred stock, shares issued (shares)	0	0
Common stock, par value (USD per share)	$ 0.01	$ 0.01
Common stock, shares authorized (shares)	50,000,000	50,000,000
Common stock, shares issued (shares)	27,992,589	27,969,783
Common stock, shares outstanding (shares)	27,281,359	27,525,365
Treasury stock, shares (shares)	(711,231)	(361,231)