Deposit Accounts Interest expense on deposit accounts (Details) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Interest expense on deposit accounts
Checking accounts	$ 165,000	$ 161,000	$ 110,000
Savings	141,000	110,000	103,000
Money market accounts	2,426,000	1,443,000	1,043,000
Certificates of deposit accounts	3,898,000	3,323,000	2,809,000
Total	6,630,000	5,037,000	$ 4,065,000
Accrued interest on deposits	$ 124,195	$ 136,000