Restructuring Charges (Details) (USD $)	6 Months Ended		6 Months Ended				6 Months Ended
	Jun. 30, 2014	Jun. 30, 2014 Accrued Liabilities [Member]	Jun. 30, 2014 Reorganization Plan Approved In April 2014 [Member]	Jun. 30, 2014 Reorganization Plan Approved In April 2014 [Member] Reduced Annual Operating Expenses [Member]	Jun. 30, 2014 Facility Closing [Member]	Dec. 31, 2013 Facility Closing [Member]	Jun. 30, 2014 Employee Severance [Member]
Changes in the restructuring accrual
Balance of restructuring accrual at the beginning of the period	$ 998,000	$ 1,000,000			$ 185,000	$ 185,000	$ 813,000
Restructuring charges	1,914,000		1,900,000				1,914,000
Cash payments	(1,897,000)						(1,897,000)
Balance of restructuring accrual at the end of the period	1,015,000	1,000,000			185,000	185,000	830,000
Expected run rate savings				$ 3,000,000