Note 1 - Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2012

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

(in thousands except per share data)
	2012		2011			2010
Numerator:
Net income (loss)	$	6,065	$	(14,267	)	$	3,289
Denominator:
Denominator for basic income (loss) per share – weighted-average shares		14,742		14,689			14,374
Effect of dilutive securities:
Equivalent shares issuable upon conversion of unvested restricted stock		66		-			128
Equivalent shares issuable upon conversion of unvested employee stock options		-		-			3
Denominator for diluted income (loss) per share adjusted weighted-average shares and assumed conversions		14,808		14,689			14,505
Net income (loss) per share:
Basic income (loss) per share	$	0.41	$	(0.97	)	$	0.23
Diluted income (loss) per share	$	0.41	$	(0.97	)	$	0.23

Allowance for Doubtful Accounts [Member]

Summary of Valuation Allowance [Table Text Block]

Years ended December 31:	Beginning balance January 1,	Additional provisions to allowance	Write-offs and other deductions	Ending balance December 31,
2012	$1,711	$904	$(886)	$1,729
2011	$1,537	$713	$(539)	$1,711
2010	$1,845	$422	$(730)	$1,537