SHAREHOLDERS' EQUITY (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Feb. 25, 2016	Jan. 14, 2016	May 07, 2014	Jan. 11, 2010
Calculation of weighted average common shares
Weighted average common shares, basic	11,795,000	11,382,000	11,863,000	11,343,000
Effect of dilutive securities
Effect of stock options (in shares)	869,000	806,000	855,000	758,000
Effect of dilutive share awards (in shares)	66,000	146,000	82,000	156,000
Weighted average common shares, diluted	12,730,000	12,334,000	12,800,000	12,257,000
Anti-dilutive securities excluded from calculation of diluted earnings per share (in shares)			0
Common stock repurchases
Value of common stock authorized to be repurchased					$ 40,000,000	$ 50,000,000	$ 10,000,000	$ 10,000,000
Purchase of treasury stock (in shares)	108,414		686,627	5,250
Remaining authorized repurchase amount	$ 49,100,000		$ 49,100,000