Restructuring Obligations and Other Charges (Details)	3 Months Ended		9 Months Ended
	Sep. 30, 2016 USD ($) Employee	Jun. 30, 2016 USD ($)	Sep. 30, 2016 USD ($) Employee
Restructuring Reserve [Roll Forward]
Restructuring obligations, beginning of period	$ 55,000	$ 0
Restructuring costs incurred	0	423,000
Cash payments	(24,000)	(368,000)
Restructuring obligations, end of period	31,000	55,000	$ 31,000
Contract Terminations [Member]
Restructuring Reserve [Roll Forward]
Restructuring obligations, beginning of period	31,000	0
Restructuring costs incurred	0	113,000	113,000
Cash payments	0	(82,000)
Restructuring obligations, end of period	31,000	31,000	31,000
Severance [Member]
Restructuring Reserve [Roll Forward]
Restructuring obligations, beginning of period	24,000	0
Restructuring costs incurred	0	310,000	310,000
Cash payments	(24,000)	(286,000)
Restructuring obligations, end of period	$ 0	$ 24,000	$ 0
Reduction in number of employees | Employee	35		35