SHAREHOLDERS' EQUITY (Details) $ / shares in Units, $ in Millions	1 Months Ended				3 Months Ended	12 Months Ended
	Feb. 29, 2016 Installment shares	Jul. 31, 2015 Installment shares	Nov. 30, 2011 Installment shares	Aug. 31, 2010 Installment shares	Mar. 31, 2012 Installment shares	Dec. 31, 2016 USD ($) Plan $ / shares shares	Dec. 31, 2015 USD ($) $ / shares shares	Dec. 31, 2014 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of compensation plans | Plan						3
Share based compensation cost | $						$ 1.7	$ 1.2	$ 1.5
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation cost | $						0.8	0.2	0.7
Share based compensation cost, future income tax benefits | $						$ 0.3	$ 0.1	$ 0.2
Weighted-average assumptions used to estimate the fair value of options granted [Abstract]
Expected annual dividend yield						0.00%	0.00%	0.00%
Risk-free interest rate						1.64%	1.73%	2.02%
Expected volatility						44.40%	40.20%	46.90%
Expected life in years						7 years 1 month 6 days	6 years 3 months 18 days	6 years 2 months 12 days
Outstanding and exercisable options, Weighted Average Shares [Roll Forward]
Outstanding at beginning of year (in shares)						954,625	1,127,250	1,175,499
Granted (in shares)						670,000	25,000	90,000
Exercised (in shares)						0	(4,000)	(33,749)
Cancelled or expired (in shares)						(214,375)	(193,625)	(104,500)
Outstanding at end of year (in shares)						1,410,250	954,625	1,127,250
Options exercisable at year end (in shares)						750,250	832,125	839,500
Weighted average fair value per option granted during the year (in dollars per share) | $ / shares						$ 3.94	$ 4.44	$ 6.46
Outstanding and exercisable options, Weighted Average Exercise Price [Roll Forward]
Outstanding at beginning of year (in dollars per share) | $ / shares						15.98	16.12	16.11
Granted (in dollars per share) | $ / shares						8.43	10.62	13.56
Exercised (in dollars per share) | $ / shares						0	6.30	9.78
Cancelled or expired (in dollars per share) | $ / shares						14.86	16.29	15.83
Outstanding at end of year (in dollars per share) | $ / shares						$ 12.57	$ 15.98	$ 16.12
Weighted average grant date fair value [Roll Forward]
Total intrinsic value of options exercised | $								$ 0.2
Unrecognized compensation costs | $						$ 1.9
Weighted average period of recognition						3 years 4 months 13 days
Total fair value of stock options vested | $						$ 0.6	$ 1.1	1.2
Restricted Stock Units [Member] | Selling, General and Administrative Expenses [Member] | Key Employee [Member] | Granted November 2011 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation cost | $						0.1	0.2	0.2
Restricted Stock Units [Member] | Selling, General and Administrative Expenses [Member] | Key Employee [Member] | Grant February 2016 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation cost | $						0.5
Restricted Stock Units [Member] | Selling, General and Administrative Expenses [Member] | Two Key Employees [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation cost | $						0.1	0.4	0.3
Restricted Stock Units [Member] | Selling, General and Administrative Expenses [Member] | Director [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation cost | $						$ 0.1	$ 0.1	0.1
Unvested Stock Options [Member]
Activity for all unvested options [Roll Forward]
Unvested at beginning of the year (in shares)						122,500
Granted (in shares)						670,000
Vested (in shares)						(75,000)
Forfeited (in shares)						(57,500)
Unvested at end of the year (in shares)						660,000	122,500
Weighted average grant date fair value [Roll Forward]
Unvested at the beginning of the year (in dollars per share) | $ / shares						$ 7.40
Granted (in dollars per share) | $ / shares						3.94
Vested (in dollars per share) | $ / shares						8.40
Forfeited (in dollars per share) | $ / shares						4.43
Unvested at the end of the year (in dollars per share) | $ / shares						$ 4.02	$ 7.40
1995 Stock Option Plan for Non-Employee Directors [Member] | Stock Options [Member]
Outstanding and exercisable options, Weighted Average Shares [Roll Forward]
Outstanding at end of year (in shares)						0
1999 Long-term Stock Incentive Plan, as amended [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for issuance (in shares)						7,500,000
Number of shares granted per employee in total, maximum (in shares)						3,000,000
1999 Long-term Stock Incentive Plan, as amended [Member] | Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares granted per employee in total, maximum (in shares)						1,500,000
Outstanding and exercisable options, Weighted Average Shares [Roll Forward]
Outstanding at end of year (in shares)						381,500
2006 Stock Incentive Plan For Non-Employee Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for issuance (in shares)						200,000
2006 Stock Incentive Plan For Non-Employee Directors [Member] | Stock Options [Member]
Outstanding and exercisable options, Weighted Average Shares [Roll Forward]
Outstanding at end of year (in shares)						5,000
2010 Long-term Stock Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares authorized for issuance (in shares)						7,500,000
2010 Long-term Stock Incentive Plan [Member] | Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares granted per employee in total, maximum (in shares)						1,500,000
Outstanding and exercisable options, Weighted Average Shares [Roll Forward]
Outstanding at end of year (in shares)						1,023,750
2010 Long-term Stock Incentive Plan [Member] | Restricted Stock Units [Member]
Outstanding and exercisable restricted stock, Weighted Average Shares [Roll Forward]
Outstanding at end of year (in shares)						250,000
2010 Long-term Stock Incentive Plan [Member] | Restricted Stock Units [Member] | Key Employee [Member]
Activity for all unvested options [Roll Forward]
Granted (in shares)	75,000	23,620	100,000
Restricted Stock and Restricted Stock Units [Abstract]
Number of vesting installments | Installment	3	4	10
Number of units vesting annually (in shares)		5,905	10,000
2010 Long-term Stock Incentive Plan [Member] | Restricted Stock Units [Member] | Key Employee [Member] | Granted August 2010 [Member]
Activity for all unvested options [Roll Forward]
Granted (in shares)				175,000
Restricted Stock and Restricted Stock Units [Abstract]
Number of vesting installments | Installment				10
Number of units vesting annually (in shares)				17,500
2010 Long-term Stock Incentive Plan [Member] | Restricted Stock Units [Member] | Two Key Employees [Member]
Activity for all unvested options [Roll Forward]
Granted (in shares)					50,000
Vested (in shares)					(35,000)
Restricted Stock and Restricted Stock Units [Abstract]
Number of vesting installments | Installment					10
Number of units vesting annually (in shares)					10,000
2010 Long-term Stock Incentive Plan [Member] | Restricted Stock Units [Member] | Selling, General and Administrative Expenses [Member] | Key Employee [Member] | Granted August 2010 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation cost | $						$ 0.1	$ 0.2	$ 0.2
5.00 to 10.00 [Member]
Options vested and exercisable or nonvested that are expected to vest (nonvested outstanding less expected forfeitures) [Abstract]
Range of Exercise Prices, Lower Range Limit (in dollars per share) | $ / shares						$ 5.00
Range of Exercise Prices, Upper Range Limit (in dollars per share) | $ / shares						$ 10.00
Number Exercisable (in shares)						573,362
Weighted Average Exercise Price (in dollars per share) | $ / shares						$ 8.54
Weighted Average Remaining Contractual Life						9 years 2 months 23 days
Aggregate Intrinsic Value | $						$ 0.2
10.01 to 15.00 [Member]
Options vested and exercisable or nonvested that are expected to vest (nonvested outstanding less expected forfeitures) [Abstract]
Range of Exercise Prices, Lower Range Limit (in dollars per share) | $ / shares						$ 10.01
Range of Exercise Prices, Upper Range Limit (in dollars per share) | $ / shares						$ 15.00
Number Exercisable (in shares)						357,750
Weighted Average Exercise Price (in dollars per share) | $ / shares						$ 13.04
Weighted Average Remaining Contractual Life						3 years 2 months 1 day
Aggregate Intrinsic Value | $						$ 0.0
15.01 to 20.00 [Member]
Options vested and exercisable or nonvested that are expected to vest (nonvested outstanding less expected forfeitures) [Abstract]
Range of Exercise Prices, Lower Range Limit (in dollars per share) | $ / shares						$ 15.01
Range of Exercise Prices, Upper Range Limit (in dollars per share) | $ / shares						$ 20.00
Number Exercisable (in shares)						290,000
Weighted Average Exercise Price (in dollars per share) | $ / shares						$ 18.63
Weighted Average Remaining Contractual Life						3 years 8 months 26 days
Aggregate Intrinsic Value | $						$ 0.0
20.01 to 20.15 [Member]
Options vested and exercisable or nonvested that are expected to vest (nonvested outstanding less expected forfeitures) [Abstract]
Range of Exercise Prices, Lower Range Limit (in dollars per share) | $ / shares						$ 20.01
Range of Exercise Prices, Upper Range Limit (in dollars per share) | $ / shares						$ 20.15
Number Exercisable (in shares)						100,000
Weighted Average Exercise Price (in dollars per share) | $ / shares						$ 20.15
Weighted Average Remaining Contractual Life						18 days
Aggregate Intrinsic Value | $						$ 0.0
5.00 to 20.15 [Member]
Options vested and exercisable or nonvested that are expected to vest (nonvested outstanding less expected forfeitures) [Abstract]
Range of Exercise Prices, Lower Range Limit (in dollars per share) | $ / shares						$ 5.00
Range of Exercise Prices, Upper Range Limit (in dollars per share) | $ / shares						$ 20.15
Number Exercisable (in shares)						1,321,112
Weighted Average Exercise Price (in dollars per share) | $ / shares						$ 12.85
Weighted Average Remaining Contractual Life						5 years 8 months 8 days
Aggregate Intrinsic Value | $						$ 0.2