5. Loans, Allowance for Loan Losses and Credit Quality (Details 6)	3 Months Ended		12 Months Ended
	Mar. 31, 2016 USD ($) integer	Mar. 31, 2015 USD ($) integer	Dec. 31, 2015 USD ($) integer
Number of Contracts | integer	3	4	6
Recorded Investment | $	$ 285,515	$ 306,874	$ 506,145
Commercial
Number of Contracts | integer	1
Recorded Investment | $	$ 79,158
Commercial Real Estate
Number of Contracts | integer	1		1
Recorded Investment | $	$ 146,519		$ 149,514
Residential Real Estate - 1st Lien
Number of Contracts | integer	1	4	4
Recorded Investment | $	$ 59,838	$ 306,874	$ 286,803
Residential Real Estate Jr Lien
Number of Contracts | integer			1
Recorded Investment | $			$ 69,828