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CONDENSED CONSOLIDATED BALANCE SHEETS (USD $)
In Thousands, unless otherwise specified
May 31, 2014
Aug. 31, 2013
Assets    
Cash and cash equivalents $ 44,895 $ 53,434
Short-term investments 45,413 37,516
Trade accounts receivable, less allowance for doubtful accounts of $729 and $540 at May 31, 2014 and August 31, 2013, respectively 62,079 56,878
Inventories 37,573 32,433
Current deferred tax assets, net 5,685 5,672
Other current assets 7,687 6,210
Total current assets 203,332 192,143
Property and equipment, net 9,728 8,535
Goodwill 95,544 95,236
Other intangible assets, net 24,403 24,292
Other assets 3,166 2,858
Total assets 336,173 323,064
Liabilities and Shareholders' Equity    
Accounts payable 16,934 19,693
Accrued liabilities 20,409 16,562
Revolving credit facility 83,000 63,000
Accrued payroll and related expenses 12,122 17,244
Income taxes payable 1,281 1,146
Total current liabilities 133,746 117,645
Long-term deferred tax liabilities, net 24,500 24,011
Deferred and other long-term liabilities 1,931 1,901
Total liabilities 160,177 143,557
Commitments and Contingencies      
Shareholders' equity:    
Common stock ― authorized 36,000,000 shares, $0.001 par value; 19,463,726 and 19,392,979 shares issued at May 31, 2014 and August 31, 2013, respectively; and 14,928,097 and 15,285,536 shares outstanding at May 31, 2014 and August 31, 2013, respectively 19 19
Additional paid-in capital 135,866 133,239
Retained earnings 231,143 214,034
Accumulated other comprehensive income (loss) 2,192 (5,043)
Common stock held in treasury, at cost ― 4,535,629 and 4,107,443 shares at May 31, 2014 and August 31, 2013, respectively (193,224) (162,742)
Total shareholders' equity 175,996 179,507
Total liabilities and shareholders' equity $ 336,173 $ 323,064