STOCKHOLDERS' EQUITY (Details) (USD $)	12 Months Ended												1 Months Ended	12 Months Ended		1 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 0.83-2.00 [Member]	Dec. 31, 2013 4.00-6.00 [Member]	Dec. 31, 2013 13.00-16.00 [Member]	Dec. 31, 2013 17.00-19.00 [Member]	Dec. 31, 2013 20.00-21.00 [Member]	Dec. 31, 2013 26.00-30.00 [Member]	Dec. 31, 2013 September 2013 [Member]	Dec. 31, 2013 April 2013 [Member]	Dec. 31, 2013 May 2012 [Member]	Jul. 31, 2007 1997 Stock Option Plan [Member]	Dec. 31, 2013 1997 Stock Option Plan [Member] Installment	Dec. 31, 2013 1997 Stock Option Plan [Member] Qualified Incentive Stock Options [Member]	Dec. 31, 2003 2001 Stock Option Plan [Member]	Dec. 31, 2013 2001 Stock Option Plan [Member]	Dec. 16, 2003 2001 Stock Option Plan [Member]	Aug. 31, 2001 2001 Stock Option Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for issuance (in shares)														500,000			2,050,000	1,750,000	750,000
Exercise price per share of common stock (in hundredths)														100.00%	110.00%
Minimum ownership percentage for qualified incentive stock options (in hundredths)															10.00%
Number of installments for options vest and become exercisable														4
Options expiry period (in years)														10 years	5 years
Number of stock options expired (in shares)													231,000
Number of options outstanding (in shares)	1,167,000	1,182,000												1,167,000			1,167,000
Number of additional shares authorized (in shares)																1,000,000	300,000
Plan expire date																	Apr. 23, 2019
Assumptions used to estimate the fair values of the stock options granted [Abstract]
Risk-free interest rate (in hundredths)										1.73%	0.68%	0.69%
Expected volatility (in hundredths)										33.00%	37.00%	54.00%
Expected life (in years)										5 years	5 years	5 years
Dividend yield (in hundredths)										0.00%	0.00%	0.00%
Weighted-average estimated fair value of options granted during the year										$ 85,000	$ 79,000	$ 110,000
Shares [Roll Forward]
Outstanding, beginning of period (in shares)	1,182,000													0
Options granted (in shares)	30,000	15,000	0
Options exercised (in shares)	(30,000)
Options canceled or expired (in shares)	15,000
Outstanding at end of year (in shares)	1,167,000	1,182,000												1,167,000			1,167,000
Options exercisable at year end (in shares)	1,132,000
Shares available for future grant (in shares)	239,098
Weighted Average Exercise Price [Roll Forward]
Outstanding at beginning of year (in dollars per share)	$ 8.90
Options granted (in dollars per share)	$ 16.88
Options exercised (in dollars per share)	$ 1.00
Options canceled or expired (in dollars per share)	$ 30.79
Outstanding at end of year (in dollars per share)	$ 9.03	$ 8.90
Options exercisable at year end (in dollars per share)	$ 8.55
Shares available for future grant (in dollars per share)	$ 0
Stock options by exercise price [Abstract]
Range of Options Exercise Prices, lower limit (in dollars per share)				$ 0.83	$ 4.00	$ 13.00	$ 17.00	$ 20.00	$ 26.00
Range of Options Exercise Prices, upper limit (in dollars per share)				$ 2.00	$ 6.00	$ 16.00	$ 19.00	$ 21.00	$ 30.00
Outstanding Shares (in shares)	1,167,000			467,500	242,000	155,000	85,000	112,500	105,000
Weighted Average Life	3 years 8 months 19 days			2 years 1 month 6 days	3 years 4 months 28 days	5 years 2 months 26 days	5 years 9 months 7 days	4 years 9 months	5 years 9 months 25 days
Weighted Average Exercise Price (in dollars per share)	$ 9.03			$ 1.01	$ 4.69	$ 13.96	$ 17.73	$ 20.57	$ 28.02
Exercisable Shares (in shares)	1,132,000			467,500	242,000	155,000	70,000	112,500	85,000
Weighted Average Option price (in dollars per share)	$ 8.55			$ 1.01	$ 4.69	$ 13.96	$ 17.69	$ 20.57	$ 27.74
Proceeds from stock option exercises	30,000	148,425	82,450
Aggregate intrinsic value of options outstanding	14,800,000
Closing price of Company stock (in dollars per share)	$ 21.67
Unrecognized compensation cost	$ 79,000
Weighted average period for recognition of unrecognized compensation cost (in years)	3 years 9 months