Debt (Details) $ in Thousands	Dec. 31, 2015 USD ($) building	Dec. 31, 2014 USD ($)
Long-term debt maturities
2016	$ 340
2017	368
2018	398
2019	427
Total long-term debt	1,533
Less current portion	340	$ 314
Total (less current maturities)	1,193	1,533
Mortgage Payable
Debt
Mortgage payable outstanding	1,500	1,800
Land and buildings	$ 3,300	$ 3,300
Number of buildings held for sale \| building	1
Annual interest rate on mortgage (as a percent)	7.91%	7.91%
Mortgage Payable \| Level 3
Debt
Fair value of debt instrument	$ 1,600	$ 2,000

Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

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