Basis of Presentation, Critical Accounting Policies, Estimates, and Assumptions (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Income Taxes
Deferred tax asset	$ 24,200,000	$ 27,400,000
Valuation allowance	24,600,000	27,800,000
Deferred tax liability	378,000	365,000
Increase (decrease) in unrecognized tax benefit	$ 0	$ 0