Investments (Schedule of Continuous Losses) (Details) $ in Thousands	Sep. 30, 2017 USD ($)	Dec. 31, 2016 USD ($)
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	$ 20,548	$ 35,620
Less than 12 Months, Gross Unrealized Losses	322	974
12 Months or Longer, Fair Value	11,858	8,251
12 Months or Longer, Gross Unrealized Losses	718	725
Total Fair Value	32,406	43,871
Total Gross Unrealized Losses	$ 1,040	$ 1,699
Total Securities in a Loss Position	56	86
Corporate debt securities
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	$ 6,445	$ 14,036
Less than 12 Months, Gross Unrealized Losses	120	396
12 Months or Longer, Fair Value	5,345	2,594
12 Months or Longer, Gross Unrealized Losses	435	482
Total Fair Value	11,790	16,630
Total Gross Unrealized Losses	$ 555	$ 878
Total Securities in a Loss Position	21	33
Mortgage backed securities
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	$ 4,583	$ 4,235
Less than 12 Months, Gross Unrealized Losses	70	84
12 Months or Longer, Fair Value	932	847
12 Months or Longer, Gross Unrealized Losses	111	89
Total Fair Value	5,515	5,082
Total Gross Unrealized Losses	$ 181	$ 173
Total Securities in a Loss Position	12	16
Private label asset backed securities
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	$ 1,642	$ 1,774
Less than 12 Months, Gross Unrealized Losses	13	53
12 Months or Longer, Fair Value	0	3,261
12 Months or Longer, Gross Unrealized Losses	0	112
Total Fair Value	1,642	5,035
Total Gross Unrealized Losses	$ 13	$ 165
Total Securities in a Loss Position	2	11
Obligations of states and political subdivisions
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	$ 1,594	$ 4,154
Less than 12 Months, Gross Unrealized Losses	21	147
12 Months or Longer, Fair Value	1,964	0
12 Months or Longer, Gross Unrealized Losses	56	0
Total Fair Value	3,558	4,154
Total Gross Unrealized Losses	$ 77	$ 147
Total Securities in a Loss Position	7	9
U.S. Treasury securities and obligations of U.S. Government corporations and agencies
Schedule of Available-for-sale Securities [Line Items]
Less than 12 Months, Fair Value	$ 6,284	$ 11,421
Less than 12 Months, Gross Unrealized Losses	98	294
12 Months or Longer, Fair Value	3,617	291
12 Months or Longer, Gross Unrealized Losses	116	14
Total Fair Value	9,901	11,712
Total Gross Unrealized Losses	$ 214	$ 308
Total Securities in a Loss Position	14	16
Equity securities
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