7. Stockholders' Equity (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Beginning Balance, Amount	$ 35,774
Beginning Balance, Shares	13,754,749
Common stock option exercised and issued, Amount	$ 183
Share - based compensation expense	2
Dividends declared	(1,242)
Net income	(1,268)	$ 513
Unrealized gain on available- for-sales securities, net of tax	2,059
Repurchase of common stock	(97)	$ 0
Ending Balance, Amount	$ 35,411
Ending Balance, Shares	13,844,584
Common Stock
Beginning Balance, Amount	$ 8,253
Beginning Balance, Shares	13,754,749
Common stock option exercised and issued, Amount	$ 54
Common stock option exercised and issued, Shares	89,835
Ending Balance, Amount	$ 8,307
Ending Balance, Shares	13,844,584
Additional Paid In Capital
Beginning Balance, Amount	$ 25,382
Common stock option exercised and issued, Amount	129
Share - based compensation expense	2
Ending Balance, Amount	25,513
Retained Earnings
Beginning Balance, Amount	240
Dividends declared	(1,242)
Net income	(1,268)
Ending Balance, Amount	(2,270)
Accumulated Other Comprehensive Income
Beginning Balance, Amount	2,061
Unrealized gain on available- for-sales securities, net of tax	2,059
Ending Balance, Amount	4,120
Treasury Stock
Beginning Balance, Amount	(162)
Repurchase of common stock	(97)
Ending Balance, Amount	$ (259)