6. Stockholders' Equity (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Beginning Balance, Amount			$ 30,184
Beginning Balance, Shares			13,545,482
Common stock option exercise and issued, Amount			34
Share - based compensation expense			36
Net income	514	884	1,116	1,729
Ending Balance, Amount	31,370		31,370
Ending Balance, Shares	13,580,471		13,580,471
CommonStockMember
Beginning Balance, Amount			8,127
Beginning Balance, Shares			13,545,482
Common stock option exercise and issued, Amount			21
Common stock option exercise and issued, Shares			34,989
Ending Balance, Amount	8,148		8,148
Ending Balance, Shares	13,580,471		13,580,471
AdditionalPaidInCapitalMember
Beginning Balance, Amount			24,604
Common stock option exercise and issued, Amount			13
Share - based compensation expense			36
Ending Balance, Amount	24,653		24,653
AccumulatedDeficitMember
Beginning Balance, Amount			(2,547)
Net income			1,116
Ending Balance, Amount	$ (1,431)		$ (1,431)