Quarterly Financial Information (unaudited) (Tables)

12 Months Ended

Dec. 31, 2016

Quarterly Financial Data [Abstract]

Schedule of Quarterly Financial Information [Table Text Block]

			First		Second		Third		Fourth		Fiscal
2016			Quarter		Quarter		Quarter		Quarter		Year
			(in thousands, except per share data)
Revenues		$	26,963	$	26,136	$	25,007	$	26,415	$	104,521
Cost of revenues			14,018		14,461		13,317		14,310		56,106
	Gross profit		12,945		11,675		11,690		12,105		48,415
Total operating expenses			13,166		12,515		12,503		13,228		51,412
Operating loss			(221)		(840)		(813)		(1,123)		(2,997)
Other (expense) income, net			(222)		73		(67)		135		(81)
Loss before income taxes			(443)		(767)		(880)		(988)		(3,078)
Income tax expense (benefit)			193		(54)		758		332		1,229
Net loss		$	(636)	$	(713)	$	(1,638)	$	(1,320)	$	(4,307)
Loss per share:
	Basic loss per common share	$	(0.02)	$	(0.02)	$	(0.05)	$	(0.04)	$	(0.13)
	Diluted loss per common share	$	(0.02)	$	(0.02)	$	(0.05)	$	(0.04)	$	(0.13)

			First		Second		Third		Fourth		Fiscal
2015			Quarter		Quarter		Quarter		Quarter		Year
			(in thousands, except per share data)
Revenues		$	25,763	$	28,800	$	25,731	$	28,370	$	108,664
Cost of revenues			14,285		16,205		14,005		15,446		59,941
	Gross profit		11,478		12,595		11,726		12,924		48,723
Total operating expenses			12,628		12,496		12,501		12,811		50,436
Operating (loss) income			(1,150)		99		(775)		113		(1,713)
Other expense, net			(614)		(526)		(321)		(434)		(1,895)
(Loss) income before income taxes			(1,764)		(427)		(1,096)		(321)		(3,608)
Income tax (benefit) expense			(363)		(776)		(249)		16,819		15,431
Net (loss) income		$	(1,401)	$	349	$	(847)	$	(17,140)	$	(19,039)
(Loss) earnings per share:
	Basic (loss) earnings per common share	$	(0.04)	$	0.01	$	(0.02)	$	(0.51)	$	(0.57)
	Diluted (loss) earnings per common share	$	(0.04)	$	0.01	$	(0.02)	$	(0.51)	$	(0.57)