Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Current assets:
Cash and cash equivalents	$ 25,923	$ 9,358
Marketable securities	24,480	46,386
Accounts receivable, net of allowance for doubtful accounts of approximately $2,441 as of September 30, 2014 and $1,705 as of December 31, 2013	32,918	27,549
Inventories	20,591	18,255
Prepaid expenses and other assets	4,670	3,784
Deferred income taxes	3,121	3,060
Total current assets	111,703	108,392
Property and equipment, less accumulated depreciation of $38,937 as of June 30, 2014 and $36,456 as of December 31, 2013	42,300	37,142
Intangible assets, less accumulated amortization of $2,934 as of June 30, 2014 and $2,005 as of December 31, 2013	36,608	14,987
Goodwill	40,670	18,281
Other non-current assets	4,551	5,047
Total assets	235,832	183,849
Current liabilities:
Accounts payable	14,362	8,876
Accrued compensation and employee-related expenses	4,241	5,859
Accrued other	13,144	7,325
Accrued product warranty costs	1,666	1,269
Deferred revenue	7,598	4,858
Current portion of long-term debt	4,959	1,272
Total current liabilities	45,970	29,459
Deferred income taxes	3,057	625
Liability for Uncertain Tax Positions, Noncurrent	3,616	0
Other long-term liabilities	1,322	204
Long-term debt, excluding current portion	66,238	37,094
Total liabilities	120,203	67,382
Stockholders’ equity:
Preferred stock, $0.01 par value. Authorized 1,000,000 shares; none issued	0	0
Common stock, $0.01 par value. Authorized 30,000,000 shares; 17,099,149 and 16,936,128 shares issued at June 30, 2014 and December 31, 2013; and 15,440,158 and 15,277,137 shares outstanding at June 30, 2014 and December 31, 2013, respectively	171	169
Additional paid-in capital	120,013	117,147
Retained earnings	10,924	11,840
Accumulated other comprehensive (loss) income	(2,329)	461
Less: treasury stock at cost, common stock, 1,658,991 shares as of September 30, 2014 and December 31, 2013	(13,150)	(13,150)
Total stockholders’ equity	115,629	116,467
Total liabilities and stockholders’ equity	$ 235,832	$ 183,849