Statements of Income Statement (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Revenues	$ 52,570	$ 41,649
Cost of Revenue	23,604	20,080
Gross Profit	28,966	21,569
Research and Development Expense	10,360	10,006
Selling, General and Administrative Expense	12,974	10,780
Amortization of Intangible Assets	515	670
Operating Expenses	23,849	21,456
Operating Income (Loss)	5,117	113
Interest Expense, net	1,382	1,281
Total other expenses (income)	638	(127)
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	3,097	(1,041)
Income Tax Expense (Benefit)	1,249	(317)
Net Income (Loss) Attributable to Parent	$ 1,848	$ (724)
Earnings (Loss) Per Share, Basic	$ 0.06	$ (0.02)
Earnings (Loss) Per Share, Diluted	$ 0.06	$ (0.02)
Weighted Average Number of Shares Outstanding, Basic	31,928	33,092
Weighted Average Number of Shares Outstanding, Diluted	32,549	33,092