6. Stockholders’ Equity (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended						3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013 CommonStockMember	Dec. 31, 2012 CommonStockMember	Mar. 31, 2013 CommonStockIncludingAdditionalPaidInCapitalMember	Dec. 31, 2012 CommonStockIncludingAdditionalPaidInCapitalMember	Mar. 31, 2013 AccumulatedDeficitMember
Beginning Balance, Amount	$ 30,184		$ 8,127	$ 8,127	$ 24,635	$ 24,604	$ (2,547)
Beginning Balance, Shares	13,545,482		13,545,482	13,545,482
Common stock option exercise and issued
Share-based compensation expense	31						31
Net income	405	(401)					405
Ending Balance, Amount	$ 30,620		$ 8,127	$ 8,127	$ 24,635	$ 24,604	$ (2,142)
Ending Balance, Shares	13,545,482		13,545,482	13,545,482