Divestiture and Discontinued Operations (Details) - USD ($)		3 Months Ended		9 Months Ended		12 Months Ended
	Nov. 04, 2015	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015	Dec. 31, 2015
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Total consideration	$ 16,600,000
Consideration received	12,100,000
Consideration receivable	4,500,000
Estimated fair value of the notes receivable	4,400,000
Consideration payable upon achievement of targets	$ 1,500,000
Liabilities of discontinued operations		$ 5,000		$ 5,000		$ 441,000
Working capital adjustments paid				977,000	$ 0
Working capital adjustments included in accrued expenses						$ 939,000
Summary of Results of Discontinued Operations [Abstract]
Total revenues		0	$ 4,267,000	0	13,037,000
Loss from discontinued operations before income taxes		0	(3,796,000)	(38,000)	(6,505,000)
Benefit from income taxes		0	1,010,000	12,000	2,000,000
Loss from discontinued operations, net of taxes		$ 0	$ (2,786,000)	$ (26,000)	$ (4,505,000)