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Consolidated Balance Sheets (USD $)
Dec. 31, 2012
Dec. 31, 2011
Current assets:    
Cash and cash equivalents $ 44,067,477 $ 35,777,222
Accounts receivable, net of reserves of $337,459 and $334,473 at December 31, 2012 and 2011, respectively 21,462,481 17,307,786
Inventories 8,283,472 7,302,483
Current portion deferred income taxes 2,031,583 1,918,926
Prepaid expenses and other 1,539,477 1,831,127
Total current assets 77,384,490 64,137,544
Property and equipment, at cost 52,376,013 50,850,630
Less: accumulated depreciation (17,263,032) (14,380,752)
Net tangible long lived assets 35,112,981 36,469,878
Long-term deposits and other 171,053 205,042
Intangible assets, net 20,334,636 23,148,563
Goodwill 9,065,891 8,883,407
Total Assets 142,069,051 132,844,434
Current liabilities:    
Accounts payable 2,341,838 4,299,680
Accrued expenses 5,837,044 5,321,594
Deferred revenue 2,875,067 2,866,667
Current portion of long-term debt 1,600,000 1,600,000
Income taxes payable 1,798,669 450,482
Total current liabilities 14,452,618 14,538,423
Other long-term liabilities 1,541,124 1,548,652
Long-term deferred revenue 2,152,778 5,019,440
Deferred tax liability 6,997,397 7,375,141
Long-term debt 8,000,000 9,600,000
Commitments and contingencies (Note 9)      
Stockholders' equity:    
Preferred stock, $.01 par value; 1,250,000 shares authorized, no shares issued and outstanding at December 31, 2012 and 2011, respectively      
Common stock, $.01 par value; 30,000,000 shares authorized, 13,866,060 and 13,630,607 shares issued and outstanding at December 31, 2012 and 2011, respectively 138,659 136,305
Additional paid-in-capital 65,431,424 63,441,433
Accumulated currency translation adjustment (2,654,630) (3,067,181)
Retained earnings 46,009,681 34,252,221
Total stockholders' equity 108,925,134 94,762,778
Total Liabilities and Stockholders' Equity $ 142,069,051 $ 132,844,434