Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2013

Fair Value Measurements

Summary of valuation of financial instrument pricing levels

	Total		Level 1		Level 2		Level 3
2013:
Available-for-sale securities	$	768,000	$	768,000	$	—	$	—
2012:
Available-for-sale securities	$	680,000	$	680,000	$	—	$	—

Summary of the valuation of pricing levels for non-financial assets that are measured at fair value on a non-recurring basis

	Total		Level 1		Level 2		Level 3		2013 Losses
Long-lived assets held and used	$	26,000,000	$	—	$	—	$	26,000,000	$	4,329,000