NON-RECURRING CHARGES (Details) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2013 item	Dec. 31, 2014
Non-Recurring Charges
Nonrecurring Expense	$ 0	$ 2,054,000
Employee severance and related costs		1,700,000
Share-based compensation		300,000
Activity for the Company's cost reduction plan obligations
Balance of accrued costs at the end of the period	3,852,000
Payments	(948,000)
Balance of accrued costs at the end of the period	2,904,000
Additional disclosures
Accrued severance and facilities-related costs, Current	2,460,000			3,284,000
Accrued severance and facilities-related costs, Non-current	400,000
Restructuring accrual anticipated to be paid out
2015 (remaining nine months)	2,434,000
2016	102,000
2017	341,000
2018	11,000
2019	16,000
Total	2,904,000
Employee severance costs
Non-Recurring Charges
Number of employees reduced			20
Number of employees reduced (as a percent)			17.00%
Activity for the Company's cost reduction plan obligations
Balance of accrued costs at the end of the period	3,280,000
Payments	(923,000)
Balance of accrued costs at the end of the period	2,357,000
Restructuring accrual anticipated to be paid out
Total	2,357,000
Facilities-related costs
Activity for the Company's cost reduction plan obligations
Balance of accrued costs at the end of the period	572,000
Payments	(25,000)
Balance of accrued costs at the end of the period	547,000
Restructuring accrual anticipated to be paid out
Total	$ 547,000