Business Combinations - Schedule of Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 02, 2014	Jun. 30, 2014	Apr. 02, 2014
Business Acquisition [Line Items]
Total assets acquired	$ 0		$ 167,199
Total liabilities assumed	$ 0		$ 153,172
Alaska Pacific Bank
Business Acquisition [Line Items]
Cash and equivalents				$ 12,956
Investment securities				7,240
Loans				138,432
Premises and equipment				3,436
Other intangibles				623
Mortgage servicing rights				1,170
Other real estate owned				1,709
Other assets				1,645
Total assets acquired				167,211
Deposits				151,438
Other liabilities				1,734
Total liabilities assumed				$ 153,172
Residential Mortgage Holding Company
Business Acquisition [Line Items]
Cash and equivalents		$ 10,828
Loans		41,304
Premises and equipment		255
Other intangibles		950
Other real estate owned		270
Other assets		10,291
Total assets acquired		67,858
Other liabilities		6,625
Total liabilities assumed		44,166
Rate lock derivative asset		960
Investment in Homestate Mortgage LLC		3,000
Borrowings		$ 37,541