Investments (Tables)

12 Months Ended

Dec. 31, 2015

Fair Value Disclosures [Abstract]

Investments from Continuing Operations

Investments of our continuing operations consist of the following as of December 31, 2015 and 2014 (dollars in thousands):

	December 31, 2015
			Gross Unrealized
	Cost		Gain		(Loss)			Fair Value
Short-term investments (available for sale):
Municipal bonds	$	1,500	$	-	$	(11	)	$	1,489
Non-governmental debt securities		76,999		-		(242	)		76,757
Treasury and federal agencies		36,779		3		(127	)		36,655
Total short-term investments		115,278		3		(380	)		114,901
Long-term investments (available for sale):
Municipal bond		7,850		-		(476	)		7,374
Total investments (available for sale)	$	123,128	$	3	$	(856	)	$	122,275

	December 31, 2014
			Gross Unrealized
	Cost		Gain		(Loss)			Fair Value
Short-term investments (available for sale):
Municipal bonds	$	6,880	$	1	$	(56	)	$	6,825
Non-governmental debt securities		98,400		1		(271	)		98,130
Treasury and federal agencies		17,928		6		(31	)		17,903
Total short-term investments		123,208		8		(358	)		122,858
Long-term investments (available for sale):
Municipal bond		7,850		-		(476	)		7,374
Total investments (available for sale)	$	131,058	$	8	$	(834	)	$	130,232

Schedule of Available-for-Sale Investments

A schedule of available-for-sale investments segregated by their original stated terms to maturity as of December 31, 2015 and 2014 are as follows (dollars in thousands): 

	Less than one year		One to five years		Five to ten years		Greater than ten years		Total
Original stated term to maturity of available-for-sale-    investments as of December 31, 2015	$	71,000	$	43,552	$	-	$	7,723	$	122,275
Original stated term to maturity of available-for-sale-    investments as of December 31, 2014	$	77,177	$	44,182	$	211	$	8,662	$	130,232

Investments Measured at Fair Value on Recurring Basis

Investments measured at fair value on a recurring basis subject to the disclosure requirements of FASB ASC Topic 820 – Fair Value Measurements at December 31, 2015 and 2014 were as follows (dollars in thousands):

	As of December 31, 2015
	Level 1		Level 2		Level 3		Total
Municipal bonds	$	-	$	1,489	$	7,374	$	8,863
Non-governmental debt securities		-		76,757		-		76,757
Treasury and federal agencies		-		36,655		-		36,655
Totals	$	-	$	114,901	$	7,374	$	122,275

	As of December 31, 2014
	Level 1		Level 2		Level 3		Total
Municipal bonds	$	-	$	6,825	$	7,374	$	14,199
Non-governmental debt securities		-		98,130		-	$	98,130
Treasury and federal agencies		-		17,903		-		17,903
Totals	$	-	$	122,858	$	7,374	$	130,232

Assets Measured at Fair Value on Recurring Basis Using Significant Unobservable Inputs (Level 3)

The following table presents a rollforward of our assets measured at fair value on a recurring basis using significant unobservable inputs (Level 3) as defined in FASB ASC Topic 820 for the year ended December 31, 2015 (dollars in thousands):

Balance at December 31, 2014	$	7,374
Unrealized loss		-
Balance at December 31, 2015	$	7,374