Note 10 - Stock Based Compensation (Detail) - Summary of the Status of the Company’s Non-Vested Restricted Stock Awards (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Non-vested stock awards outstanding	54,867	77,400	78,599
Non-vested stock awards outstanding (in Dollars per share)	$ 3.16	$ 3.47	$ 3.06
Granted	13,243	51,000	113,243
Granted (in Dollars per share)	$ 3.66	$ 2.73	$ 3.16
Vested and issued	(41,109)	(67,200)	(92,276)
Vested and issued (in Dollars per share)	$ 3.37	$ 3.12	$ 2.84
Forfeited	(7,667)	(6,333)	(22,166)
Forfeited (in Dollars per share)	$ 2.79	$ 3.96	$ 3.06
Non-vested stock awards outstanding	19,334	54,867	77,400
Non-vested stock awards outstanding (in Dollars per share)	$ 3.20	$ 3.16	$ 3.47