Condensed Consolidated Balance Sheets (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Assets
Cash and cash equivalents	$ 5,034	$ 8,021
Investments	3,180	3,954
Accounts receivable, net	9,945	10,137
Inventories	5,279	4,649
Prepaid expenses and other receivables	2,269	2,017
Deferred income taxes	199	230
Total current assets	25,906	29,008
Property and equipment, net	1,295	1,122
Goodwill and intangible assets	23,826	24,226
Total assets	51,027	54,356
Liabilities and Shareholders' Equity
Accounts payable	1,217	2,094
Accrued compensation	888	1,364
Accrued warranty and other	1,458	1,467
Earn-outs payable	618	2,928
Income taxes payable	98	17
Total current liabilities	4,279	7,870
Deferred income taxes	323	290
Income taxes payable	150	175
Shareholders' equity:
Common stock	49	49
Additional paid-in capital	22,318	22,065
Accumulated other comprehensive income	651	52
Retained earnings	23,257	23,855
Total stockholder's equity	46,275	46,021
Total liabilities and shareholders' equity	$ 51,027	$ 54,356