Income Taxes - NOL (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
NOL and tax credit carry-forward
Period of time Section 382 limitation will likely increase	4 years
Deferred Tax Assets, Operating Loss Carryforwards	$ 7,682	$ 10,962
Alternative minimum tax credit	2,491	$ 2,125
Federal.
NOL and tax credit carry-forward
NOL available for carry-forward	15,500
Deferred tax assets, operating loss carryforwards, domestic	5,400
Alternative minimum tax credit	1,900
Federal. | Prior Years
NOL and tax credit carry-forward
Deferred tax assets, operating loss carryforwards, domestic	600
State tax
NOL and tax credit carry-forward
NOL available for carry-forward	20,900
Deferred tax assets, operating loss carryforwards, State	2,300
Alternative minimum tax credit	600
State tax | Prior Years
NOL and tax credit carry-forward
Deferred tax assets, operating loss carryforwards, State	800
MISN | Federal.
NOL and tax credit carry-forward
Deferred tax assets, operating loss carryforwards, domestic	4,800
MISN | State tax
NOL and tax credit carry-forward
Deferred tax assets, operating loss carryforwards, State	$ 1,500