CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY (Parenthetical) - shares	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
CONSOLIDATED STATEMENTS OF CASH FLOWS [Abstract]
Shares issued in exercise of options (in shares)	455,310	16,960	833,334
Release from treasury stock for equity plans, net of return of shares to treasury for forfeited shares	81,663	125,108	165,348
Shares of stock repurchased into treasury	20,000	0	0