Summary of Significant Accounting Policies - Recent Accounting Pronouncements (Details) - USD ($)	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Recent Accounting Pronouncements
Cumulative effect adjustment, retained earnings	$ 28,000
Cash flows provided by operating activities	12,478,000	$ 15,524,000
Cash flows used in financing activities	(17,796,000)	(7,594,000)
Other Assets Current	2,831,000		$ 4,079,000
Deferred Tax Assets, Net, Noncurrent	108,065,000		109,365,000
Long Term Debt Noncurrent	173,029,000		185,552,000
Accounting Standards Update ("ASU") 2015-03 - Simplifying the Presentation of Debt Issuance Costs | Scenario, Adjustment [Member]
Recent Accounting Pronouncements
Debt issuance costs, net			(1,527,000)
Long Term Debt Noncurrent			1,527,000
Retrospective early adoption | Accounting Standards Update ("ASU") 2016-09 - Compensation – Stock Compensation
Recent Accounting Pronouncements
Cumulative effect adjustment, retained earnings	$ 44,000
Cash flows provided by operating activities		1,105,000
Cash flows used in financing activities		$ (1,105,000)
Retrospective early adoption | Accounting Standards Update ("ASU") 2015-17 - Income Taxes: Balance Sheet Classification of Deferred Taxes
Recent Accounting Pronouncements
Other Assets Current			(3,332,000)
Deferred Tax Assets, Net, Noncurrent			$ 3,332,000