Income Taxes (Details 3) (Federal [Member], USD $) In Thousands, unless otherwise specified	Dec. 31, 2014
Net operating loss carry-forwards	$ 94,500
Expiration 2021 [Member]
Net operating loss carry-forwards	15,200
Expiration 2022 [Member]
Net operating loss carry-forwards	1,700
Expiration 2023 [Member]
Net operating loss carry-forwards
Expiration 2024 [Member]
Net operating loss carry-forwards	4,100
Expiration 2025 [Member]
Net operating loss carry-forwards	7,700
Expiration 2026 [Member]
Net operating loss carry-forwards	25,500
Expiration 2027 [Member]
Net operating loss carry-forwards	15,500
Expiration 2028 [Member]
Net operating loss carry-forwards	5,200
Expiration 2029 [Member]
Net operating loss carry-forwards	7,700
Expiration 2030 [Member]
Net operating loss carry-forwards	10,600
Expiration 2031 [Member]
Net operating loss carry-forwards	$ 1,300