Debt Schedule of Long-term Debt instruments (Details) - Junior Subordinated Debt [Member] - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
ACST II [Member]
Debt Instrument [Line Items]
Balance at December 31,	$ 10,000	$ 10,000
Period-End Interest Rate	3.48%	3.38%
ACST III [Member]
Debt Instrument [Line Items]
Balance at December 31,	$ 10,000
Period-End Interest Rate	2.33%	2.23%