Investments (Schedule of Continuous Losses) (Details) $ in Thousands	Mar. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	$ 32,772	$ 35,620
Less than 12 Months, Gross Unrealized Losses	757	974
12 Months or Longer, Fair Value	4,470	8,251
12 Months or Longer, Gross Unrealized Losses	645	725
Total Fair Value	37,242	43,871
Total Gross Unrealized Losses	$ 1,402	$ 1,699
Total Securities in a Loss Position	74	86
Corporate Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	$ 12,090	$ 14,036
Less than 12 Months, Gross Unrealized Losses	262	396
12 Months or Longer, Fair Value	2,587	2,594
12 Months or Longer, Gross Unrealized Losses	485	482
Total Fair Value	14,677	16,630
Total Gross Unrealized Losses	$ 747	$ 878
Total Securities in a Loss Position	28	33
Mortgage-backed Securities, Issued by US Government Sponsored Enterprises [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	$ 2,864	$ 4,235
Less than 12 Months, Gross Unrealized Losses	107	84
12 Months or Longer, Fair Value	937	847
12 Months or Longer, Gross Unrealized Losses	126	89
Total Fair Value	3,801	5,082
Total Gross Unrealized Losses	$ 233	$ 173
Total Securities in a Loss Position	15	16
Private Label Asset Backed Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	$ 3,100	$ 1,774
Less than 12 Months, Gross Unrealized Losses	50	53
12 Months or Longer, Fair Value	674	3,261
12 Months or Longer, Gross Unrealized Losses	13	112
Total Fair Value	3,774	5,035
Total Gross Unrealized Losses	$ 63	$ 165
Total Securities in a Loss Position	6	11
US States and Political Subdivisions Debt Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	$ 3,609	$ 4,154
Less than 12 Months, Gross Unrealized Losses	100	147
12 Months or Longer, Fair Value	0	0
12 Months or Longer, Gross Unrealized Losses	0	0
Total Fair Value	3,609	4,154
Total Gross Unrealized Losses	$ 100	$ 147
Total Securities in a Loss Position	8	9
US Treasury Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	$ 11,109	$ 11,421
Less than 12 Months, Gross Unrealized Losses	238	294
12 Months or Longer, Fair Value	272	291
12 Months or Longer, Gross Unrealized Losses	21	14
Total Fair Value	11,381	11,712
Total Gross Unrealized Losses	$ 259	$ 308
Total Securities in a Loss Position	17	16
Equity Securities [Member]
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value		$ 0
Less than 12 Months, Gross Unrealized Losses		0
12 Months or Longer, Fair Value		1,258
12 Months or Longer, Gross Unrealized Losses		28
Total Fair Value		1,258
Total Gross Unrealized Losses		$ 28
Total Securities in a Loss Position		1