Federal Income Taxes: Deferred Tax Assets and Liabilities (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Deferred tax assets:      
Net operating loss carryforward $ 0 $ 3,052 $ 7,441
Charitable contributions 7 2 27
ALLL 3,257 3,599 4,454
Reserve for unfunded commitments 187 128 121
Deferred compensation 646 688 698
Net unrealized loss on investments available for sale 0 0 463
Alternative minimum tax credit carryforward 1,375 1,939 1,685
Employee benefit plans 1,051 1,535 1,701
Net capital loss on investments 0 450 431
OREO market value adjustments 213 414 392
Accrued expenses 510 165 285
Deferred tax assets before valuation allowance 7,246 11,972 17,698
Valuation allowance 0 (450) (431)
Total deferred tax assets 7,246 11,522 17,267
Deferred tax liabilities:      
FHLB stock dividends 1,255 1,337 1,337
Loan origination fees and costs 870 744 592
Net unrealized gain on investments available for sale 44 432 0
Deferred Tax Liabilities, Property, Plant and Equipment 299 472 365
Other, net 222 199 138
Total deferred tax liabilities 2,690 3,184 2,432
Deferred tax assets, net $ 4,556 $ 8,338 $ 14,835