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Condensed Consolidated Balance Sheets (Unaudited) (USD $)
Sep. 30, 2013
Dec. 31, 2012
Current assets:    
Cash and cash equivalents $ 64,055,438 $ 44,067,477
Accounts receivable, net of reserves of $369,989 and $337,459 at September 30, 2013 and December 31, 2012, respectively 16,496,917 21,462,481
Inventories 11,582,492 8,283,472
Current portion deferred income taxes 1,989,422 2,031,583
Prepaid expenses and other 878,472 1,539,477
Total current assets 95,002,741 77,384,490
Property and equipment, at cost 52,067,759 52,376,013
Less: accumulated depreciation (18,805,895) (17,263,032)
33,261,864 35,112,981
Long-term deposits and other 145,563 171,053
Intangible assets, net 19,197,226 20,334,636
Goodwill 9,275,130 9,065,891
Total Assets 156,882,524 142,069,051
Current liabilities:    
Accounts payable 2,136,679 2,341,838
Accrued expenses 5,228,399 5,837,044
Deferred revenue 850,067 2,875,067
Current portion of long-term debt 1,600,000 1,600,000
Income taxes payable 542,302 1,798,669
Total current liabilities 10,357,447 14,452,618
Other long-term liabilities 1,172,099 1,541,124
Long-term deferred revenue 2,027,778 2,152,778
Deferred tax liability 8,319,038 6,997,397
Long-term debt 6,800,000 8,000,000
Commitments and contingencies (Note 10)      
Stockholders’ equity:    
Preferred stock, $.01 par value; 1,250,000 shares authorized, no shares issued and outstanding at September 30, 2013 and December 31, 2012, respectively      
Common stock, $.01 par value; 30,000,000 shares authorized, 14,266,098 and 13,866,060 shares issued and outstanding at September 30, 2013 and December 31, 2012, respectively 142,661 138,659
Additional paid-in-capital 70,281,179 65,431,424
Accumulated currency translation adjustment (2,147,511) (2,654,630)
Retained earnings 59,929,833 46,009,681
Total stockholders’ equity 128,206,162 108,925,134
Total Liabilities and Stockholders’ Equity $ 156,882,524 $ 142,069,051