CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares shares in Thousands	Mar. 31, 2019	Dec. 31, 2018	Mar. 31, 2018
STOCKHOLDERS' EQUITY
Preferred stock, par value (in dollars per share)	$ 0.01		$ 0.01
Preferred stock, shares authorized (in shares)	2,000		2,000
Preferred stock, shares outstanding (in shares)	0		0
Common stock, par value (in dollars per share)	$ 0.01		$ 0.01
Common stock, shares authorized (in shares)	25,000		25,000
Common stock, shares outstanding (in shares)	13,611		13,761
Treasury stock, shares (in shares)	693	467