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CONSOLIDATED BALANCE SHEETS (USD $)
In Thousands, unless otherwise specified
Aug. 31, 2014
Aug. 31, 2013
Assets    
Cash and cash equivalents $ 57,803 $ 53,434
Short-term investments 45,050 37,516
Trade accounts receivable, less allowance for doubtful accounts of $406 and $540 at August 31, 2014 and 2013, respectively 63,618 56,878
Inventories 34,989 32,433
Current deferred tax assets, net 5,855 5,672
Other current assets 8,339 6,210
Total current assets 215,654 192,143
Property and equipment, net 9,702 8,535
Goodwill 95,499 95,236
Other intangible assets, net 23,671 24,292
Other assets 3,154 2,858
Total assets 347,680 323,064
Liabilities and Shareholders' Equity    
Accounts payable 18,031 19,693
Accrued liabilities 18,382 16,562
Revolving credit facility 98,000 63,000
Accrued payroll and related expenses 15,969 17,244
Income taxes payable 1,529 1,146
Total current liabilities 151,911 117,645
Long-term deferred tax liabilities, net 24,253 24,011
Other long-term liabilities 2,101 1,901
Total liabilities 178,265 143,557
Commitments and Contingencies      
Shareholders' equity:    
Common stock ― authorized 36,000,000 shares, $0.001 par value; 19,464,310 and 19,392,979 shares issued at August 31, 2014 and 2013, respectively; and 14,754,362 and 15,285,536 shares outstanding at August 31, 2014 and 2013, respectively 19 19
Additional paid-in capital 136,212 133,239
Retained earnings 237,596 214,034
Accumulated other comprehensive income (loss) 1,103 (5,043)
Common stock held in treasury, at cost ― 4,709,948 and 4,107,443 shares at August 31, 2014 and 2013, respectively (205,515) (162,742)
Total shareholders' equity 169,415 179,507
Total liabilities and shareholders' equity $ 347,680 $ 323,064