6. Stockholders' Equity (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Beginning Balance, Amount			$ 33,233
Beginning Balance, Shares			13,665,087
Common stock option exercise and issued, Amount			$ 76
Share - based compensation expense			16
Net income	$ 78	$ 672	617	$ 1,147
Ending Balance, Amount	$ 33,942		$ 33,942
Ending Balance, Shares	13,718,396		13,718,396
CommonStockMember
Beginning Balance, Amount			$ 8,199
Beginning Balance, Shares			13,665,087
Common stock option exercise and issued, Amount			$ 32
Common stock option exercise and issued, Shares			53,309
Share - based compensation expense			$ 0
Net income			0
Ending Balance, Amount	$ 8,231		$ 8,231
Ending Balance, Shares	13,718,396		13,718,396
AdditionalPaidInCapitalMember
Beginning Balance, Amount			$ 24,816
Common stock option exercise and issued, Amount			44
Share - based compensation expense			16
Net income			0
Ending Balance, Amount	$ 24,876		24,876
AccumulatedDeficitMember
Beginning Balance, Amount			218
Common stock option exercise and issued, Amount			0
Share - based compensation expense			0
Ending Balance, Amount	$ 835		$ 835