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Consolidated Balance Sheets (Current Period Unaudited) - USD ($)
Jun. 30, 2015
Dec. 31, 2014
Current Assets:    
Cash and cash equivalents $ 10,163,586 $ 11,966,863
Accounts receivable, net 6,513,033 6,463,050
Costs and estimated earnings in excess of billings on contracts in progress 3,329,357 2,498,662
Inventories 4,204,881 4,842,059
Deferred income taxes – current 2,050,073 2,887,960
Other current assets 100,719 194,756
Total Current Assets 26,361,649 28,853,350
Property, plant and equipment, net 15,132,890 15,025,283
Construction in progress 2,636 389,276
Deferred income taxes – non-current 1,049,942 750,133
Restricted cash 400,000 400,000
Other assets 75,798 82,559
Intangible assets, net 63,720 55,871
Total Assets 43,086,635 45,556,472
Current Liabilities:    
Accounts payable 1,884,869 1,682,838
Accrued expenses 4,773,934 3,297,052
Current maturities of long-term debt 720,000 720,000
Billings in excess of costs and estimated earnings on contracts in progress 400,218 1,328,508
Deferred revenue $ 179,423 488,691
Accrued loss on litigation settlement   4,925,000
Total Current Liabilities $ 7,958,444 12,442,089
Long-term debt, net of current portion 3,485,508 3,845,508
Total Liabilities $ 11,443,952 $ 16,287,597
Commitments and Contingencies    
Stockholders’ Equity    
Common stock - $0.01 par value – 10,000,000 shares authorized; issued and outstanding, 6,170,727 at June 30, 2015 and 6,162,027 at December 31, 2014 $ 61,707 $ 61,620
Additional paid-in-capital 22,515,391 22,144,805
Retained earnings 9,065,585 7,062,450
Total Stockholders’ Equity 31,642,683 29,268,875
Total Liabilities and Stockholders’ Equity $ 43,086,635 $ 45,556,472